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STV224XH/228XH/223XH
I²C BUS-CONTROLLED MULTISTANDARD SINGLE CHIP TV PROCESSOR
I²C Bus Control PIF Circuit with PLL Demodulation (Positive and Negative Video) SIF Circuit with QSS Structure, FM Demodulation and AM Demodulation for France Intercarrier Capability Built-in Sound Bandpass Sound Subcarrier Output for Stereo Chassis (FM, NICAM) Audio FM wide mode Audio Switch and Volume Control (Mono Chassis) AVL (Automatic Volume Levelling) Integrated Chroma Filters and Luma Delay Line Integrated Chroma Delay Line Video Switch (3 CVBS In, 2 CVBS Out) SVHS Switch (Y Combined with CVBS3 Input) OSD RGB Inputs External RGB/YCrCb Inputs or YUV Interface PAL / SECAM / NTSC Chroma Demodulators Auto Flesh Control Capability in NTSC mode South America Capability (PAL-M / PAL-N / NTSC) Chroma Subcarrier Output Black Stretch Circuit Peaking Circuit Automatic Cut-off Current Loop Manual Cut-off possible for low-cost applications Two Horizontal Deflection PLLs Vertical Countdown Half Contrast APR (Automatic RGB Peak Regulation) or RGB Peak Limitation Function White Insertion Copy Protection mode Wide Line Blanking mode SAW Filter Switch Control (TQFP64 package only) Very Few External Components
SHRINK56 (Plastic Package) ORDER CODE: STV224XH/8XH
TQFP64 (14 x 14 x 1.4 mm) (Full Thin Plastic Quad Flat Pack) ORDER CODE: STV223XH
April 2004
1/86
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1 GENERAL DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 1.1 INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 1.2 PIN DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 2 MAIN FEATURES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 3 FUNCTIONAL DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 3.1 DETAILED FEATURES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 3.1.1 Power Supplies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.1.2 Picture Intermediate Frequency (PIF) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.1.3 Sound Intermediate Frequency (SIF) and Sound Demodulators . . . . . . . . . . . . . . . 3.1.4 Audio Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.1.5 Surface Acoustic Wave (SAW) Filter Switch Control . . . . . . . . . . . . . . . . . . . . . . . . 3.1.6 Video Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.2 DEFLECTION PART . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.2.1 Synchronization Separator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.2.2 Two Phase-Locked Loops (PLL) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.2.3 Video Identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.2.4 Vertical Synchronization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.2.5 Vertical Blanking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.2.6 Vertical Oversize Blanking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.2.7 Vertical Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.2.8 Vertical Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.2.9 Horizontal Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.2.10Horizontal Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.2.11Combined Line Flyback / Super-Sandcastle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.2.12Line Blanking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.2.13Copy Protection Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.3 FILTERS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.3.1 Integrated Trap Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.3.2 Integrated Chroma Bandpass . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.3.3 Integrated Bell Filter for SECAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.3.4 Integrated Luma Delay Line . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.3.5 Filter Tuning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.4 VIDEO CIRCUIT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.4.1 RGB Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.4.2 YCrCb Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.4.3 Half-Contrast Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.4.4 YUV to RGB Matrix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.4.5 Automatic Cut-off Current Loop . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.4.6 Warm-up Detector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.4.7 Beam Current Limiter DC Voltage Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.4.8 Drive (RGB gain) and DC Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.4.9 Bus-controlled Contrast & Saturation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.4.10Bus-controlled Brightness & Sharpness . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.4.11Bus-controlled Coring on Sharpness . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.4.12Black Stretch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.4.13Bus-controlled Blue Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.4.14White Insertion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.4.15Automatic RGB Peak Regulation (APR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 20 20 20 20 20 21 21 21 21 21 21 21 22 22 22 22 22 22 22 22 22 22 22 23 23 23 23 23 23 23 23 23 23 23 24 24 24 24 24 24 24
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3.4.16RGB Peak Limitation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 3.5 CHROMA CIRCUIT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 3.5.1 PAL/SECAM/NTSC Decoders . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.5.2 PAL/NTSC Decoder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.5.3 SECAM Decoder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.5.4 Chroma Standard Identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 ELECTRICAL CHARACTERISTICS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.1 ABSOLUTE MAXIMUM RATINGS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 24 25 25 26 26
4.2 THERMAL DATA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 4.3 SUPPLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 4.4 IF SECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 4.4.1 PIF Amplifier . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.4.2 PIFAGC Negative Modulation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.4.3 PIFAGC Positive Modulation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.4.4 Tuner AGC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.4.5 Synchronous Video Demodulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.4.6 Demodulated Video Output (INTCVBSOUT Pin) . . . . . . . . . . . . . . . . . . . . . . . . 4.4.7 SIF Amplifier . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.4.8 SIF AGC (FM) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.4.9 SIF AGC (AM) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.4.10FM Demodulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.4.11De-emphasis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.4.12AM Demodulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.4.13SIF Output (AM/FM or Sound Subcarriers Output) . . . . . . . . . . . . . . . . . . . . . . . 4.4.14SAW Filter Switch Output (TQFP64 only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.4.15External Audio Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.4.16Main Audio Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.4.17AVL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.5 CVBS, Y/C, RGB INPUTS AND CVBS OUTPUTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.5.1 Luminance & CVBS Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.5.2 Combined Chrominance & SVHS Selection Input . . . . . . . . . . . . . . . . . . . . . . . 4.5.3 CVBS1 Output (Pin 29 - SDIP56) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.5.4 CVBS2 Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.5.5 OSD RGB Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.5.6 FBOSD/HC Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.5.7 External RGB/YCrCb Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.5.8 External Fast Blanking Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.6 LUMA PART . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.6.1 Y Delay Line . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.6.2 Peaking Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.6.3 Black Stretch Control (Pin BS) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.6.4 Y Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.7 FILTERS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.7.1 Y Trap Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.7.2 Chrominance Bandpass . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.7.3 Bell Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.8 CHROMA PART . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 27 27 27 28 28 29 29 29 29 29 30 30 30 30 30 31 31 31 31 31 32 32 32 33 33 33 33 33 34 34 34 34 34 35 35
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4.8.1 ACC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.8.2 ACC Overload . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.8.3 Killer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.8.4 Chroma PLL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.8.5 PLL Loop Filter (PAL/NTSC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.8.6 Hue Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.8.7 Automatic Flesh Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.8.8 Color Demodulators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.8.9 Chroma Delay Line . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.8.10Chroma Reference Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.9 SCANNING PART . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.9.1 Synchronization Separator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.9.2 Horizontal Oscillator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.9.3 First Loop Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.9.4 Second Loop Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.9.5 Line Flyback Input/Super-Sandcastle Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.9.6 Horizontal Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.9.7 Vertical Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.9.8 Vertical Amplitude Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.9.9 Crystal Detection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.10 RGB CONTROL PART . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.10.1Y Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.10.2U & V Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.10.3Contrast Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.10.4Saturation Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.10.5Brightness Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.10.6RGB Matrix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.10.7Drive Adjustment (White Point Adjustment) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.10.8Cut-Off Adjustment (Black Point Adjustment) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.10.9Cathode Current Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.10.10Beam Current Limiter Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.10.11Automatic RGB Peak Regulation (APR) / RGB Peak Limitation . . . . . . . . . . . . . . 4.10.12RGB Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.11 I²C BUS CHARACTERISTICS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.11.1SCL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.11.2SDA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.11.3I²C Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 I²C BUS SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 I²C BUS SELECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6.1 SUMMARY INPUT SIGNALS (WRITE MODE) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6.2 SUMMARY OUTPUT SIGNALS (READ MODE) 6.3.1 6.3.2 6.3.3 6.3.4 6.3.5 6.3.6
35 35 35 35 35 35 35 36 36 36 36 36 36 37 37 37 37 37 38 38 38 38 38 38 38 39 39 39 39 39 39 40 41 43 43 43 43 44 45 45
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46 47 47 47 48 48 49
6.3 INPUT SIGNALS (WRITE MODE) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47 PIFVCO Free Running . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . PIF Free Running Coarse . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . PIF Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Tuner Delay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SIF Features and Audio Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Video Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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STV224XH/228XH/223XH
6.3.7 Chroma Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6.3.8 Scanning Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6.3.9 Miscellaneous . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6.4 OUTPUT SIGNALS (READ MODE) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 I²C BUS SPECIFICATION COMPATIBILITY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 INPUT/OUTPUT SCHEMATIC DIAGRAMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 APPLICATION DIAGRAMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 THERMAL CONSIDERATIONS FOR TQFP64 PACKAGE . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 SUMMARY OF CHANGES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 GENERAL PACKAGE INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12.1 PACKAGE MECHANICAL DATA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
51 52 53 54 57 58 79 83 84 85 85
6.5 POWER-ON RESET - INITIAL BUS REGISTER CONDITIONS . . . . . . . . . . . . . . . . . . . . 56
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STV224XH/228XH/223XH - GENERAL DESCRIPTION
1 GENERAL DESCRIPTION
1.1 INTRODUCTION The STV224XH/228XH/223XH are fully bus-controlled ICs for TV that include PIF, SIF, Luma, Chroma and Deflection processing functions. Used with a vertical frame booster (TDA8174A for a 90° chassis, STV9306 for a 110° chassis), they allow multistandard (BGDKIMNLL', PAL/SECAM/NTSC) sets to be designed with very few external components and no manual adjustments.
Application PAL/SECAM/NTSC QSS/Intercarrier AM STV2247H STV2248H STV2237H STV2238H 2246H/36H X X 2286H X X X X X X X X X X X
Package SHRINK56 TQFP64
PAL/NTSC Intercarrier STV2246H/86H STV2236H
PAL/NTSC QSS/Intercarrier
PAL/SECAM/NTSC QSS/Intercarrier STV2249H STV2239H
Function PAL/SECAM/NTSC PAL/NTSC QSS/Intercarrier Intercarrier Only AM Audio FM Wide mode with QSS Application 1 EXT RGB Input (OSD) OSD RGB Inputs & RGBEXT/YCrCb Inputs
2247H/37H 2248H/38H 2249H/39H X X X X X X
1.2 PIN DESCRIPTION Table 1. Pin Configuration
PIN STV224XH/228XH SDIP56 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 STV223XH TQFP64 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 Symbol SIFIN1 SIFIN2 AGCSIFCAP VREFIF AGCPIFCAP PIFIN1 PIFIN2 SAW TUNERAGCOUT IFPLL GNDIF AM/FMOUT/SC VCCIF INTCVBSOUT EXTAUDIOIN PIFLC1 PIFLC2 VCC2 CVBSIN1 Description SIF Input (Please refer to Note 1) SIF Input (Please refer to Note 1) AGC SIF Capacitor (Please refer to Note 1) Voltage Reference Filtering AGC PIF Capacitor PIF Input PIF Input Filter Switch Control AGC Tuner Output IF PLL Filter IF Ground AM/FM Mono Sound or Stereo Carriers Output 5 V IF Supply Internal CVBS Output External Audio Input LC Input LC Input Video/Luma Supply Voltage (8 V) Internal Video Input
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2
STV224XH/228XH/223XH - GENERAL DESCRIPTION
PIN STV224XH/228XH SDIP56 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 -
STV223XH TQFP64 27 28 29 34 35 36 37 38 39 40 41 43 44 45 46 47 48 49 50 52 53 54 55 56 57 58 59 61 62 63 64 1 2 3 4 5 6 7 30
Symbol GND2 CVBSIN2 BS Y/CVBSIN3 CHR APR BEXT/Cb GEXT/Y REXT/Cr FBEXT NTBC/CVBSOUT1 BOUT GOUT ROUT ICATH BOSD GOSD ROSD FBOSD/HC XTAL3/BTUN XTAL2 XTAL1 CLPF X1/VAMP/CHROUT GND1 CVBSOUT2 VCC1 BCL/SAF VERT HOUT LFB/SSC SLPF SCL SDA VCCD GNDD AUDIOOUT FMCAP NC
Description Video/Luma Ground External Video Input Black Stretch Capacitor Y(SVHS) or CVBS3 External Input Chroma (SVHS) Input Automatic RGB Peak Regulation External Blue Input or external Cb Input (Please refer to Note 2) External Green Input or external Y Input (Please refer to Note 2) External Red Input or external Cr Input (Please refer to Note 2) External Fast Blanking Input (Please refer to Note 3) Not To Be Connected or CVBS Output 1 (Please refer to Note 4) Blue Output Green Output Red Output Cathode Current Measurement Input OSD Blue Input OSD Green Input OSD Red Input OSD Fast Blanking Input / Half Contrast 3.5X MHz Crystal or Bell Filter Tuning Capacitor 3.5X MHz Crystal 4.43/3.5X MHz Crystal Chroma PLL Filter XTAL1 Control Pin, Vertical Amplitude DAC Output and Chroma Reference Signal Output Chroma/Scanning Ground Second Video Switch Output Chroma/Scanning Power Supply (8 V) Beam Current Limiter Control Voltage and Safety Input (XRAY) Vertical Output Pulse Horizontal Output Pulse Line Flyback Input and Super-Sandcastle Output Scanning PLL Filter I²C Bus Clock Input I²C Bus Data Input Digital Supply Voltage (5 V) Digital Ground Main Audio Output FM Demodulation Capacitor Connection to GND recommended
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2
STV224XH/228XH/223XH - GENERAL DESCRIPTION
PIN STV224XH/228XH SDIP56 -
STV223XH TQFP64 31 32 33 42 51 60
Symbol NC NC NC NC NC NC
Description Connection to GND recommended Connection to GND recommended Connection to GND recommended Connection to GND recommended Connection to GND recommended Connection to GND recommended
Note 1: Input/Output not available in STV2246H/86H versions. This pin must not be connected. Note 2: When REXT, GEXT and BEXT pins are not used, they must not be connected. Register 0Ah must be set (d7 and d6 = 01). (RGB external inputs disabled.) Note 3: FBEXT to be connected to ground when not used. Note 4: CVBS output 1 on pin 29 (SDIP56), if register 1Dh = 07h.
Figure 1. STV224XH/228XH Pinout (SDIP56)
SIFIN1 SIFIN2 AGCSIFCAP VREFIF AGCPIFCAP PIFIN1 PIFIN2 TUNERAGCOUT IFPLL GNDIF AM/FMOUT/SC VCCIF INTCVBSOUT EXTAUDIOIN PIFLC1 PIFLC2 VCC2 CVBSIN1 GND2 CVBSIN2 BS Y/CVBSIN3 CHR APR BEXT/Cb GEXT/Y REXT/Cr FBEXT 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 FMCAP AUDIOOUT GNDD VCCD SDA SCL SLPF LFB/SSC HOUT VERT BCL/SAF VCC1 CVBSOUT2 GND1 X1/VAMP/CHROUT CLPF XTAL1 XTAL2 XTAL3/BTUN FBOSD/HC ROSD GOSD BOSD I CATH ROUT GOUT BOUT NTBC/CVBSOUT1
Note: Underlined pin functions are optional.
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STV224XH/228XH/223XH - GENERAL DESCRIPTION
Figure 2. STV223Xh Pinout (TQFP64)
AM/FMOUT/SC INTCVBSOUT EXTAUDIOIN CVBSIN2 CVBSIN1 PIFLC2 PIFLC1 GNDIF VCCIF
GND2
IFPLL
VCC2
NC
NC
NC
BS
NC Y/CVBSIN3 CHR APR BEXT/Cb GEXT/Y REXT/Cr FBEXT NTBC/CVBSOUT1 NC BOUT GOUT ROUT I CATH BOSD GOSD
TUNERAGCOUT SAW PIFIN2 PIFIN1 AGCPIFCAP VREFIF AGCSIFCAP SIFIN2 SIFIN1 FMCAP AUDIOOUT GNDD VCCD SDA SCL SLPF
ROSD
FBOSD/HC
XTAL3/BTUN NC
XTAL2
XTAL1
CLPF
X1/VAMP/CHROUT
GND1
CVBSOUT2
VCC1
VERT BCL/SAF NC
LFB/SSC HOUT
9/86
Y/CVBSIN3 BEXT/Cb REXT/Cr GEXT/Y CVBSIN2
NTBC/CVBSOUT1
CVBSOUT2
CVBSIN1
CHR
INTCVBSOUT FMCAP FBEXT BS
15 BLACK STRETCH AFC LUMA DL PEAKING & CORING SAT./CONT MATRIX 3 SOUND BP FM DEMOD RGB SWITCH FILTER TUNING DEEMP. CHROMA TRAP RGB CONTRAST
PIFLC1 IFPLL
9 13 21 56 23 28 22 18 29 44 20 25 26 27
16
PIFLC2
STV2246H
YUV SWITCH HALF CONTRAST
24 APR APR 37 FBOSD/HC 36 ROSD 35 GOSD 34 BOSD BCL/SAF 46 BCL/SAF RGB TO YUV
PLL
PIFIN1 6 W/B SPOT INVERTER
PIFIN2 7
AGCPIFCAP 5
AGC
Figure 3. STV2246H (SDIP56) Block Diagram
TUNERAGCOUT 8
TUNER AGC
NTBC 1
FM Mono ACC & ACC OVERLOAD
NTBC 2
BRIGHT. DRIVE CUT-OFF BLANKING
ICATH SENSE
33 ICATH 32 ROUT 31 GOUT 30 BOUT
NTBC 3
VCCD 53
BANDPASS FILTER CHROMA DL
GNDD 54
V CCIF 12
Mute Mute
SYNC. SEP
VERTICAL SCANNING
47 VERT
GNDIF 10 HORIZONTAL 1st LOOP HORIZONTAL 2nd LOOP
48 HOUT
V CC1 45
GND1 43
VOLUME
V CC2 17
I²C BUS DECODER 4 55 14 V REF
AUDIO REF
AVL
AUTO IDENT. KILLER PAL/NTSC DEMODULATOR
GND2 19
11 38 39 40 41 42
VAMP DC CONTROL 50 49
52
51
SCL
XTAL3
FMOUT
AUDIOOUT
EXTAUDIOIN
SDA
CLPF
SLPF
XTAL2
XTAL1
LFB/SSC
X1/VAMP/CHROUT
STV224XH/228XH/223XH - GENERAL DESCRIPTION
10/86
11/86
NTBC/CVBSOUT1 INTCVBSOUT FBEXT CVBSIN2 Y/CVBSIN3 BEXT/Cb GEXT/Y REXT/Cr CVBSOUT2 CVBSIN1 FMCAP BS CHR IFPLL PIFLC2
9 23 29 BLACK STRETCH AFC LUMMA DL PEAKING & CORING SAT./CONT MATRIX 3 CHROMA TRAP SOUND BP FM DEMOD DEEMP. FILTER TUNING BRIGHT. DRIVE CUT-OFF BLANKING RGB SWITCH RGB CONTRAST 37 FBOSD/HC 36 ROSD 35 GOSD 34 BOSD BCL/SAF ICATH SENSE 46 BCL/SAF 33 ICATH 32 ROUT 31 GOUT 30 BOUT BANDPASS FILTER CHROMA DL 44 18 13 56 22 20 21 28 25 26 27
15
PIFLC1
16
STV2247H
YUV SWITCH
RGB TO YUV
PLL
PIFIN1 6
W/B SPOT INVERTER
PIFIN2 7
HALF CONTRAST
APR 24 APR
AGCPIFCAP 5
AGC
TUNERAGCOUT 8
TUNER AGC
Figure 4. STV2247H (SDIP56) Block Diagram
PLL Reference Carrier
SIFIN1 1
SIFIN2 2
AGCSIFCAP 3 FM Mono
AGC
ACC & ACC OVERLOAD
STV224XH/228XH/223XH - GENERAL DESCRIPTION
V CCD 53
GNDD 54
Sound Subcarriers
V CCIF 12
Mute Mute
SYNC. SEP
VERTICAL SCANNING
47 VERT
GNDIF 10
V CC1 45 AVL
GND1 43
VOLUME
HORIZONTAL 1st LOOP
AUTO IDENT. KILLER PAL/NTSC DEMODULATOR
HORIZONTAL 2nd LOOP
48 HOUT
V CC2 17
I²C BUS DECODER 4 55 14
AUDIO REF
GND2 19
11 38 39 40 41 42
VAMP DC CONTROL 50 49
52
51
V REF
SCL
SLPF
LFB/SSC
FMOUT/SC
X1/VAMP/CHROUT
AUDIOOUT
EXTAUDIOIN
SDA
CLPF
XTAL3
XTAL2
XTAL1
CVBSIN2
NTBC/CVBSOUT1
INTCVBSOUT CVBSIN1 CVBSOUT2 Y/CVBSIN3 FMCAP CHR
BEXT/Cb
REXT/Cr
GEXT/Y
IFPLL
STV2248H
BLACK STRETCH YUV SWITCH RGB TO YUV AFC
15
PIFLC1 FBEXT BS
9 21 28 25 26 27 13 23 29 22 20 18 44 56
16
PLL
PIFLC2
PIFIN1 6
W/B SPOT INVERTER SAT./CONT MATRIX 3
PIFIN2 7
LUMA DL PEAKING & CORING
HALF CONTRAST APR
24 APR 37 FBOSD/HC 36 ROSD RGB CONTRAST 35 GOSD 34 BOSD BCL/SAF BRIGHT. DRIVE CUTOGG BLANKING I CATH SENSE 46 BCL/SAF 33 ICATH 32 ROUT 31 GOUT 30 BOUT
AGCPIFCAP 5
SOUND BP FM DEMOD
AGC
TUNERAGCOUT 8
RGB SWITCH
Figure 5. STV2248H (SDIP56) Block Diagram
TUNER AGC
PLL Reference Carrier DEEMP.
CHROMA TRAP
SIFIN1 1 AM Mono ACC & ACC OVERLOAD
LIMITER
FILTER TUNING
SIFIN2 2
AGCSIFCAP 3
AGC
V CCD 53
BELL FILTER
FM Mono
GNDD 54
Sound Subcarrier BANDPASS FILTER
V CCIF 12 Mute
BELL TUNING
CHROMA DL
SYNC. SEP
VERTICAL SCANNING
47 VERT
GNDIF 10 Mute
V CC1 45 AVL
HORIZONTAL 1st LOOP
HORIZONTAL 2nd LOOP
48 HOUT
GND1 43 VOLUME
V CC2 17
I²C BUS DECODER
AUDIO REF
AUTO IDENT. KILLER PAL/SECAM/NTSC DEMODULATOR
GND2 19 55 AM/FMOUT/SC EXTAUDIOIN AUDIOOUT 14 11 38 XTAL3/BTUN 39 40 41 CLPF XTAL2 XTAL1 42 X1/VAMP/CHROUT
VAMP DC CONTROL
52
51
4
50 SLPF
49 LFB/SSC
V REF
SCL
SDA
STV224XH/228XH/223XH - GENERAL DESCRIPTION
12/86
13/86
CVBSIN2 BEXT/Cb REXT/Cr GEXT/Y
CHR
CVBSIN1
FMCAP
CVBSOUT2
Y/CVBSIN3
NTBC/CVBSOUT1
INTCVBSOUT
15 9 22 21 BLACK STRETCH AFC 28 13 56 23 20 18 29 44 25 26 27
PIFLC1 FBEXT IFPLL BS
16
PIFLC2
STV2249H
YUV SWITCH
RGB TO YUV
PIFIN1 6
W/B SPOT INVERTER SAT./CONT MATRIX 3 DEEMP. CHROMA TRAP RGB SWITCH FILTER TUNING BRIGHT. DRIVE CUT-OFF BLANKING RGB CONTRAST 37 FBOSD/HC 36 ROSD 35 GOSD 34 BOSD BCL/SAF ICATH SENSE 46 BCL/SAF 33 I CATH 32 ROUT 31 GOUT 30 BOUT BELL FILTER BANDPASS FILTER CHROMA DL LUMA DL PEAKING & CORING
PIFIN2 7
HALF CONTRAST
24 APR
AGCPIFCAP 5
SOUND BP FM DEMOD
AGC
APR
TUNERAGCOUT 8 FM Mono
TUNER AGC
Figure 6. STV2249H (SDIP56) Block Diagram
PLL Reference Carrier
SIFIN1 1
SIFIN2 2
ACC & ACC OVERLOAD
AGCSIFCAP 3
AGC
STV224XH/228XH/223XH - GENERAL DESCRIPTION
V CCD 53
GNDD 54
Sound Subcarrier
V CCIF 12
Mute Mute
SYNC. SEP
VERTICAL SCANNING
47 VERT
GNDIF 10 HORIZONTAL 1st LOOP HORIZONTAL 2nd LOOP
48 HOUT
VCC1 45
BELL TUNING
GND1 43 AVL
VOLUME
VCC2 17
GND2 19
55 14 11
I²C BUS DECODER
AUDIO REF
AUTO IDENT. KILLER PAL/SECAM/NTSC DEMODULATOR
VAMP DC CONTROL 38 39 40 41 42 50 49
52
51
4
V REF
SCL
SLPF
CLPF
LFB/SSC
XTAL2
XTAL1
FMOUT/SC
AUDIOOUT
EXTAUDIOIN
X1/VAMP/CHROUT
XTAL3/BTUN
SDA
CVBSIN2
CVBSIN1
Y/CVBSIN3
INTCVBSOUT
CVBSOUT2
NTBC/CVBSOUT1
15
PIFLC1 CHR FMCAP NTBC NTBC NTBC BS IFPLL
9 13 56 23 22 20 18
16
PIFLC2 29 44
BLACK STRETCH AFC
21
28
25 26 27
STV2286H
PLL
PIFIN1 6
W/B SPOT INVERTER SAT./CONT MATRIX 3 LUMA DL PEAKING & CORING
HALF CONTRAST
PIFIN2 7
AGCPIFCAP 5
CHROMA TRAP SOUND BP FM DEMOD RGB SWITCH FILTER TUNING DEEMP.
AGC
APR
24 APR 37 FBOSD/HC 36 ROSD RGB CONTRAST 35 GOSD 34 BOSD BCL/SAF 46 BCL/SAF
Figure 7. STV2286H (SDIP56) Block Diagram
TUNERAGCOUT 8
TUNER AGC
NTBC 1
ACC & ACC OVERLOAD
NTBC 2
BRIGHT. DRIVE CUT-OFF BLANKING
ICATH SENSE
33 ICATH 32 ROUT 31 GOUT 30 BOUT
NTBC 3
V CCD 53
BANDPASS FILTER CHROMA DL
GNDD 54
FM Mono
V CCIF 12
Mute Mute
SYNC. SEP
VERTICAL SCANNING
47 VERT
GNDIF 10
VCC1 45
GND1 43 AVL
VOLUME
HORIZONTAL 1st LOOP
AUTO IDENT. KILLER PAL/NTSC DEMODULATOR
HORIZONTAL 2nd LOOP
48 HOUT
VCC2 17
I²C BUS DECODER 14
GND2 19
AUDIO REF 11
VAMP DC CONTROL 38 39 40 41 42 50 49
52
51
4
V REF
SCL
SLPF
CLPF
XTAL3
XTAL2
XTAL1
FMOUT
LFB/SSC
AUDIOOUT
EXTAUDIOIN
X1/VAMP/CHROUT
SDA
STV224XH/228XH/223XH - GENERAL DESCRIPTION
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CVBSOUT1 CVBSOUT2 CVBSIN2 CVBSIN1 Y/CVBSIN3 INTCVBSOUT FMCAP CHR IFPLL FBEXT BEXT/Cb GEXT/Y REXT/Cr BS
17 29 21 7 35 34 28 26 41 58
23
PIFLC1 40
39 38 37
24
PIFLC2
V CCD BLACK STRETCH
AFC
4
GNDD 5 YUV SWITCH HALF CTR SAT./CONT MATRIX
PLL
PIFIN1 13 W/B SPOT INVERTER
RGB TO YUV
PIFIN2 14 LUMA DL PEAKING & CORING
APR
36 APR
AGCPIFCAP 12
CHROMA TRAP
AGC
TUNERAGOUT 16 RGB SWITCH
FILTER TUNING
TUNER AGC
50 FBOSD/HC 49 ROSD RGB CONTRAST 48 GOSD 47 BOSD BCL/SAF ICATH SENSE 61 BCL/SAF 46 ICATH 45 ROUT 44 GOUT 43 BOUT
CHROMA DL
Figure 8. STV2236H (TQFP64) Block Diagram
NTBC 8
DEEMP.
SOUND BP FM DEMOD
NTBC 9 ACC & ACC OVERLOAD
NTBC 10 FM Mono
BRIGHT. DRIVE CUT-OFF BLANKING
STV224XH/228XH/223XH - GENERAL DESCRIPTION
SAW 15 BANDPASS FILTER
Mute
SAW FILTER SWITCH CONTROL SYNC. SEP VERTICAL SCANNING
VCCIF 20
62 VERT
GNDIF 18
Mute
V CC1 59
GND1 57 VOLUME AVL
HORIZONTAL 1st LOOP
AUTO IDENT. KILLER PAL/NTSC DEMODULATOR
HORIZONTAL 2nd LOOP
63 HOUT
V CC2 25
GND2 27
I²C BUS DECODER
AUDIO REF
VAMP DC CONTROL
2
11 22
EXTAUDIOIN AUDIOOUT
6
19 FMOUT
52 XTAL3
53 54 55 CLPF XTAL2 XTAL1
56 X1/VAMP/CHROUT
1 SLPF
64 LFB/SSC
STV2236H
SCL
SDA
V REFIF
CVBSIN2
INTCVBSOUT CVBSIN1 CVBSOUT1 Y/CVBSIN3
IFPLL BS
BEXT/Cb
GEXT/Y
REXT/Cr
CVBSOUT2
FMCAP
23 7 35
PIFLC1 FBEXT CHR
17
24
PIFLC2
34 28 26 41 58
29 40 39 38 37
VCCD 4
AFC BLACK STRETCH
GNDD 5 YUV SWITCH HALF CTR
SAT./CONT MATRIX
PLL
PIFIN1 13 W/B SPOT INVERTER
RGB TO YUV
PIFIN2 14
LUMA DL PEAKING & CORING
APR
36
APR
AGCPIFCAP 12
AGC
TUNERAGCOUT 16
CHROMA TRAP DEEMP. SOUND BP FM DEMOD
TUNER AGC
50 FBOSD/HC 49 ROSD RGB CONTRAST 48 GOSD 47 BOSD BCL/SAF ICATH SENSE 61 BCL/SAF 46 ICATH 45 ROUT 44 GOUT 43 BOUT
CHROMA DL
Figure 9. STV2237H (TQFP64) Block Diagram
PLL Reference Carrier
FILTER TUNING
RGB SWITCH
SIFIN1 8
SIFIN2 9
AGCSIFCAP 10
AGC
ACC & ACC OVERLOAD
BRIGHT. DRIVE CUT-OFF BLANKING
FM Mono
SAW 15 BANDPASS FILTER
SAW FILTER SWITCH CONTROL
Sound Subcarriers
VCCIF 20
GNDIF 18
Mute Mute
SYNC. SEP
VERTICAL SCANNING
62 VERT
V CC1 59
GND1 57 AVL VOLUME
HORIZONTAL 1st LOOP
AUTO IDENT. KILLER PAL/NTSC DEMODULATOR
HORIZONTAL 2nd LOOP
63 HOUT
V CC2 25
GND2 27 6 EXTAUDIOIN AUDIOOUT 22
I²C BUS DECODER 19 FMOUT/SC
AUDIO REF
VAMP DC CONTROL
STV2237H
52 53 54 55 CLPF XTAL3 XTAL2 XTAL1 56 X1/VAMP/CHROUT 1 SLPF 64 LFB/SSC
3
2
11
SCL
SDA
V REFIF
STV224XH/228XH/223XH - GENERAL DESCRIPTION
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CVBSIN1 CVBSIN2 BEXT/Cb GEXT/Y REXT/Cr Y/CVBSIN3 CVBSOUT1 CVBSOUT2 FMCAP FBEXT INTCVBSOUT IFPLL CHR BS
17 21 7 35
23
PIFLC1 34 28 26 41 58
29 40 39 38 37
24
PIFLC2
V CCD 4 AFC HALF CTR SAT./CONT MATRIX APR 36 APR BLACK STRETCH YUV SWITCH RGB TO YUV
GNDD 5
PLL
PIFIN1 13 W/B SPOT INVERTER LUMA DL PEAKING & CORING
PIFIN2 14
AGCPIFCAP 12 SOUND BP DEEMP. FM DEMOD CHROMA TRAP RGB SWITCH
AGC 50 FBOSD/HC 49 ROSD RGB CONTRAST 48 GOSD 47 BOSD BCL/SAF ICATH SENSE 61 BCL/SAF 46 ICATH 45 ROUT 44 GOUT 43 BOUT CLOCHE FILTER Mute HORIZONTAL 1st LOOP AUTO IDENT. KILLER PAL/SECAM/NTSC DEMODULATOR CLOCHE TUNING 52 XTAL3/BTUN 53 54 55 CLPF XTAL2 XTAL1 56 X1/VAMP/CHROUT HORIZONTAL 2nd LOOP 63 HOUT BANDPASS FILTER CHROMA DL SYNC. SEP VERTICAL SCANNING 62 VERT
TUNERAGCOUT 16
TUNER AGC
PLL Reference Carrier
FM Mono AM Mono ACC & ACC OVERLOAD FILTER TUNING
Figure 10. STV2238H (TQFP64) Block Diagram
SIFIN1 8
LIMITER
SIFIN2 9
AGCSIFCAP 10
AGC
BRIGHT. DRIVE CUT-OFF BLANKING
STV224XH/228XH/223XH - GENERAL DESCRIPTION
SAW 15
SAW FILTER SWITCH CONTROL
V CCIF 20
Sound Subcarriers
GNDIF 18 Mute
VCC1 59
GND1 57 VOLUME AVL
VCC2 25
GND2 27
6
I²C BUS DECODER 22 EXTAUDIOIN AM/FMOUT/SC 19
AUDIO REF
VAMP DC CONTROL 1 SLPF 64 LFB/SSC
3 AUDIOOUT
2
11
STV2238H
SCL
VREFIF
SDA
CVBSOUT1
CVBSIN2
CVBSIN1
CVBSOUT2
Y/CVBSIN3
FMCAP CHR
BEXT/Cb
FBEXT
GEXT/Y
REXT/Cr
IFPLL BS
INTCVBSOUT
23
PIFLC1
17 21 34 28 26 41 7 35 58 29 40 39 38 37
24
PIFLC2
VCCD 4
BLACK STRETCH AFC
GNDD 5 YUV SWITCH
RGB TO YUV HALF CTR SAT./CONT MATRIX APR
PLL
PIFIN1 13
W/B SPOT INVERTER
PIFIN2 14
LUMA DL PEAKING & CORING
36 APR
AGCPIFCAP 12
SOUND BP FM DEMOD DEEMP. CHROMA TRAP RGB SWITCH FILTER TUNING
AGC
TUNERAGCOUT 16
TUNER AGC
PLL Reference Carrier
50 FBOSD/HC 49 ROSD RGB CONTRAST 48 GOSD 47 BOSD BCL/SAF BRIGHT. DRIVE CUT-OFF BLANKING 61 BCL/SAF
Figure 11. STV2239H (TQFP64) Block Diagram
SIFIN1 8
SIFIN2 9
ICATH SENSE
46 ICATH 45 ROUT 44 GOUT 43 BOUT
AGCSIFCAP 10
AGC
ACC & ACC OVERLOAD
SAW 15
CLOCHE FILTER BANDPASS FILTER
SAW FILTER SWITCH CONTROL FM Mono
Sound Subcarriers
V CCIF 20
CHROMA DL
GNDIF 18
Mute Mute
SYNC. SEP
VERTICAL SCANNING
62 VERT
VCC1 59
CLOCHE TUNING
GND1 57
VOLUME
HORIZONTAL 1st LOOP
AUTO IDENT. KILLER PAL/SECAM/NTSC DEMODULATOR
HORIZONTAL 2nd LOOP
63 HOUT
VCC2 25 AVL
GND2 27
6 22 19
I²C BUS DECODER
AUDIO REF
VAMP DC CONTROL 52 53 54 55 56 1 64
3
2
11
STV2239H
SLPF CLPF LFB/SSC XTAL2 XTAL1 X1/VAMP/CHROUT XTAL3/BTUN
SCL
V REFIF
FMOUT/SC
AUDIOOUT
EXTAUDIOIN
SDA
STV224XH/228XH/223XH - GENERAL DESCRIPTION
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STV224XH/228XH/223XH - MAIN FEATURES
2 MAIN FEATURES
I²C Bus control (Read and Write modes). PLL PIF demodulator, bus-controlled VCO alignment. Positive and negative IF modulation. Digital AFC. Tuner-delayed AGC output. White and Black Spot cancellation. SIF with QSS structure. Intercarrier capability. Built-in sound bandpass. Multistandard PLL FM Demodulator (4.5, 5.5, 6.0, 6.5 MHz). Audio FM Wide mode (BGDKI): Capable of demodulating ±400 kHz overmodulated audio signals, to be used in QSS architecture. AM demodulator for France. Sound subcarrier output for Stereo chassis: FM and NICAM carriers. Audio switch for external audio input, Mono chassis. Digital volume control. Audio Mute. Automatic Volume Levelling (AVL) on audio signal (internal or external audio). Digital buffer for SAW filter switching. Video switch, three Composite Video Broadcasting Signal (CVBS) inputs and two CVBS outputs (which can be used to drive a teletext decoder). SVHS switch, Y input is combined with CVBS3 input. Capability to output Y+C signal on second CVBS output. OSD RGB analog inputs, fast blanking detection on fast blanking OSD pin, contrast control capability. Half-contrast control pin. External analog RGB inputs with contrast and saturation control (external RGB matrixed in YUV). External analog YCrCb inputs can be connected to the same inputs. In this case, the sync signal must be sent to the CVBS input, and External YCrCb mode must be selected through the I²C bus. Y,U,V inputs outputs: Y,U,V inputs/outputs for the use of enhanced picture ICs. Integrated chroma filters (trap, bandpass, bell) with automatic alignment.
Integrated luminance delay line. Adjustable peaking on the luminance signal with coring function. Black Stretch circuit. Automatic RGB peak regulation (APR) or RGB peak limitation. PAL/SECAM/NTSC color decoder with automatic identification of standards. Integrated chroma delay line. Full integrated SECAM decoder. Hue control, 2 selectable matrices in NTSC mode. Automatic Flesh Control circuit with two selectable characteristics (normal and wide). Automatic Color Control (ACC) overload circuit. Chroma subcarrier output which could be used to drive a comb filter circuit. Automatic digital cut-off current loop with warmup detection circuit. White point (drive) and cut-off point adjustments. Manual cut-off capability. Beam current limiter control stage. High-performance sync pulse separator. Horizontal synchronization with two phaselocked loops. Integrated VCO, auto-calibration using the chroma crystal reference frequency. Automatic time constant selection for the first PLL, three selectable time constants. Video identification circuit (independent from PLL1). Noise detector circuit. Vertical countdown circuit. Automatic 50/60 Hz selection circuit. Blanking and inserted cut-off pulses position adapted to standard (50 or 60 Hz). Long blanking mode capability in 60 Hz (same blanking as with 50 Hz standard). De-interlace capability. Horizontal starting circuit with soft-start capability. Horizontal and vertical position adjustments, vertical amplitude control voltage (combined with chroma subcarrier output). Oversize Blanking capability on OSD Fast Blanking input.
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STV224XH/228XH/223XH - FUNCTIONAL DESCRIPTION
3 FUNCTIONAL DESCRIPTION
The STV224XH/228XH is an integrated device that processes PIF, SIF, Video and Chroma signals while scanning for PAL, SECAM and NTSC standards. It includes a base band chroma delay line, Video, SVHS and audio switches. 3.1 DETAILED FEATURES 3.1.1 Power Supplies VCCIF: 5 V power supply dedicated to IF processors. GNDIF is the ground reference of these parts. VCCD: 5 V power supply dedicated to I²C bus and digital parts. GNDD is the ground reference of these parts. VCC1: 8 V power supply for video switches, scanning part and the chroma decoder. GND 1 is the ground reference of all these functions. VCC2: 8 V power supply for the luminance, RGB processing parts audio switch and internal CVBS output. GND2 is the ground reference of these parts. 3.1.2 Picture Intermediate Frequency (PIF) AGC amplifier. PLL synchronous demodulator. Bus-controlled VCO for integrated tuning of the external LC resonator. For a 38.9 MHz VCO, the LC coil specification has to be: C = 39pF, f = 44 MHz ±2% (LC not connected). For a 33.9 MHz VCO (L'), the VCO can be switched via the bus control. Digital AFC via bus. IF Automatic Gain Control (AGC) Negative modulation: top sync regulation, regulation of overmodulated signals (overmodulation regulation circuit enabled through bus control). Positive modulation: main regulation on white level with black level limitation. Tuner-delayed AGC with bus control for AGC gain and threshold. Tuner AGC output status can be read in I²C bus read register. CVBS output with two bus-controlled amplitudes. CVBS output at 2 VPP if external sound trap is not connected (QSS mode, for example). CVBS output at 2.3 VPP if external sound trap is connected. 3.1.3 Sound Intermediate Frequency (SIF) and Sound Demodulators QSS structure. SIF Automatic Gain Control (QSS mode). Built-in sound bandpass. PLL FM Demodulator for 4.5, 5.5, 6.0 or 6.5 MHz carriers. The Sound Standard is selected by the MCU. The FM demodulator VCO is automatically calibrated using the chroma crystal VCO reference frequency. The FM Demodulator VCO is automatically calibrated for all sound standards independently of the chroma crystal VCO frequency, which is either 4.4 MHz or 3.5 MHz. For each sound carrier frequency, the IC sends an indication of the sound subcarrier level to the MCU so that it can select the proper standard. In Normal mode, the maximum FM deviation is 200 kHz. In Audio FM Wide mode (BGDKI), the maximum FM deviation is 400 kHz. The Audio FM Wide mode of the STV224XH must be used in QSS applications only, using standard specific SAW filters (DK SAW filter or BG SAW filter). The sound subcarrier level is valid when the FM Demodulation VCO is calibrated. This information can be read via the I²C Bus. Bus controls for FM de-emphasis (50 or 75 µs) and FM deviation ±25 or ±50 kHz). AM demodulator. Sound demodulator output: either an AM or FM signal can be the output for the Mono chassis Sound subcarriers for the Stereo chassis. 3.1.4 Audio Switch One SCART switch. Bus-controlled volume and mute. Zero-crossing function on volume control. Automatic Volume Levelling (AVL) function can be enabled via the I²C bus. AVL status (Min. or Max. AVL Gain) can be read in I²C bus register. The AM sound can be selected on the main audio output for the Stereo chassis. 3.1.5 Surface Acoustic Wave (SAW) Filter Switch Control SAW filter switch control pin is available in the TQFP64 package. The SAW filter switch control pin is used to select the correct SAW filter characteristics (e.g.: M/N or BGDK characteristics). In a multi-standard chassis, two output voltages are selected via the I²C bus (low level voltage at 0.4 V Max., and high level voltage at 4 V Min.). 3.1.6 Video Switches Video switch with three CVBS inputs and one CVBS output (CVBSOUT1) which may be used to drive a teletext decoder.
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STV224XH/228XH/223XH - FUNCTIONAL DESCRIPTION
A second CVBS output (CVBSOUT2) is able to output recombined Y+C signals. All switches are independently controlled. SVHS switch, Y input is combined with CVBS 3 input. CVBS/SVHS modes can be selected either by bus control (software selection), or by sensing the DC voltage on the Chroma Input pin (hardware selection). If the Chroma Input is grounded, the CVBS mode is selected and the bus control is not active. If the DC level of the Chroma Input is higher than the SVHS threshold, then the bus control for the SVHS switch is active. Therefore, the SVHS mode can be selected by hardware using a special SVHS connector that includes a mechanical switch. In this type of application, the bus control is set to SVHS mode, and the CVBS mode is selected by grounding the Chroma Input pin. 3.2 DEFLECTION PART 3.2.1 Synchronization Separator Fully-integrated synchronization separator with a low pass filter, black level alignment of the CVBS input, and a 50% slicing level for the synchronized pulse amplitude. 3.2.2 Two Phase-Locked Loops (PLL) Auto-calibrated VCO using the chroma crystal reference. Crystal control pin X1/VAMP/CHROUT indicates the crystal reference value on Pin XTAL1. When a 4.43 MHz crystal is connected to Pin XTAL1, the output load on Pin X1/VAMP/ CHROUT must be greater than 80 kW. When a 3.58 MHz crystal is connected to Pin XTAL1, the output load must be less than 10 kW. The first PLL locks the VCO to the video line frequency and the second PLL compensates the line transistor storage time. Three time constants for the first PLL. [X,Y]: Line number referring to the internal line counter numbering system. The long time constant is used for normal operation. The short time constant is automatically used during the VCR search mode and frame retrace when the frame pulse is outside [258,264] and [309,314]. The very long time constant is used when there is no video recognition (very good OSD stability). Time constants in normal operation (automatic selection of time constants):
50 Hz input signal: short time constant: [306,21], long time constant: the rest of the field. 60 Hz input signal: short time constant: [0,16], long time constant: the rest of the field. 3.2.2.1 Inhibition of the First PLL The first PLL is inhibited from line 309 to line 4.5 (or 314) in 50 Hz mode and from line 258 to line 5.5 (or 264) in 60 Hz mode. The time constant values are chosen by means of external components. Possibility of forcing the short time constant during the all frame via the bus. Possibility of forcing the long time constant during the all frame via the bus. Possibility of forcing a very long time constant during the all frame via the bus. Generation of burst gate pulses and line frequency signals from the first PLL to drive the Chroma and Video circuits. The burst gate pulse is also sent to the super-sandcastle generator. 3.2.3 Video Identification The video identification status is available in the output register of the I²C bus decoder (independent from PLL1). 3.2.4 Vertical Synchronization Frame synchronized window: large window: [248,352] in AUTO mode, [248,284] in forced 60 Hz mode, [288,352] in forced 50 Hz mode. narrow window: [309,314] in 50 Hz mode, [258,264] in 60 Hz mode. Field frequency selection windows: [248,284] 60 Hz mode selection window. [288,352] 50 Hz mode selection window. Frame blanking pulse adapted to standard: from line 309 to line 21 in 50 Hz mode, from line 258 to line 16 in 60 Hz mode. 3.2.5 Vertical Blanking Long blanking mode: the end of frame blanking is line 21 both in 50 and 60 Hz modes. This mode is useful when the flyback time of the vertical output stage is longer than the 60 Hz blanking time. It is used to optimize the 50/60 Hz vertical amplifier application due to long frame blanking. 3.2.6 Vertical Oversize Blanking The Oversized Blanking function is controlled by the voltage on the FBOSD pin. When the FBOSD voltage is between the first and the second thresh-
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STV224XH/228XH/223XH - FUNCTIONAL DESCRIPTION
olds, the OSD RGB signals are selected. When the FBOSD voltage is greater than the second threshold (4 V blanking threshold), the RGB outputs are blanked during the whole field, but not during inserted cut-off lines (the cut-off loop is always active). The blanking feature, via the FBOSD input pin, enables Vertical Oversize Blanking when a 4:3 picture is displayed on a 16:9 screen in Zoom mode. The picture outside the screen is blanked by the Oversize Blanking pulse supplied by the external vertical IC (STV9306). 3.2.7 Vertical Output The Vertical output pulse is locked on a pulse that is twice the horizontal frequency to ensure perfect interlacing. The Vertical output pulse duration is 10.5 lines. Horizontal output pulse is a 28 µs line pulse on an open collector output. 3.2.8 Vertical Control Bus-controlled DC output voltage for adjusting the vertical amplitude (pin VAMP). This voltage supply is used to adjust the slope of the vertical sawtooth generated by the external vertical booster. Bus-controlled vertical position (pin VERT). The high level of the vertical pulse is used to adjust the vertical position. The bus-controlled vertical output (pin VERT) low level voltage can be either 0.2 V or 2.0 V. 3.2.9 Horizontal Output Start-up circuit: the horizontal output is at high level (disabled) when VCC1 increases from 0 to 6.0 V and when VCCD has not reached 4 V. Soft mode circuit: it provides a softer operating horizontal output with a 75% duty cycle [tHIGH / (tHIGH +tLOW)]. This results in a smaller conducting time (16 µs instead of 28 µs). This mode is active at start-up until two frames after the VCC2 reaches 75% of the VCC1. It is also active at shutdown when the VCC1 floats between 6 V and 5.4 V. And finally, this mode is used if the VCC2 drops below 75% of the V CC1. At shutdown, horizontal pulses are disabled when VCC1 is less than 5.4 V or when V CCD is less than 3.5 V. The horizontal output pulse may be disabled via the bus (force a high level on HOUT). The horizontal position adjustment is controlled via the bus. 3.2.10 Horizontal Control Safety input on BCL Pin. When the BCL Pin is switched to ground, the horizontal output pulse is disabled and the inhibition of horizontal output
pulse is maintained until VCC1 is less than 3 V (VCC1 power supply is switched off). The Safety function can be disabled via the I²C bus. When register 15hex data D7 is set to "1", the Safety function is reset and no longer active. 3.2.11 Combined Line Flyback / SuperSandcastle Combined Line Flyback input and Super-Sandcastle output: The line blanking level is clamped at 3 V, the burst key pulse voltage is 5 V and vertical pulse voltage is 2 V. The line pulse is extracted with a 2.5 V slicing level used for RGB line blanking and PLL2 control. 3.2.12 Line Blanking Line blanking at RGB outputs is logical OR of line flyback pulse and internal line blanking pulse with a 12 µs width. In Wide Line Blanking mode, line blanking at RGB outputs is logical OR of line flyback pulse and internal line blanking pulse with a 15.8 µs width. Wide line blanking is recommended when displaying a 4:3 image on a 16:9 screen (horizontal scanning reduction). 3.2.13 Copy Protection Mode This mode is used to improve the display of copyprotected video signals. 3.3 FILTERS 3.3.1 Integrated Trap Filter Q = 1.5 (f-3dB = f0 (1-1/2Q)), Center frequency: 4.43 MHz, 3.58 MHz for PAL and NTSC. 4.25 MHz, for SECAM (-20 dB rejection between 4.1 MHz and 4.4 MHz). The chroma trap filter is switched off in SVHS mode, or in color standard search mode (standard not identified). In external YCrCb mode, the trap and luma delay can be switched off via the I²C bus. 3.3.2 Integrated Chroma Bandpass Q = 3.5, Center frequency: 4.43 MHz, 3.58 MHz. The Bus Control Frequency Shift is used to optimize the chroma response for the video signal from the IF stage. 3.3.3 Integrated Bell Filter for SECAM Q = 16, Center frequency: 4.286 MHz. The Bus Control Frequency Shift is used to optimize the chroma response for the video signal from the IF stage.
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STV224XH/228XH/223XH - FUNCTIONAL DESCRIPTION
3.3.4 Integrated Luma Delay Line Bandwidth: 8 MHz. The Luma Delay Line is automatically adapted to the chroma standard. For PAL BG and applications without group delay compensation, a Luma Delay Shift of -140 ns can be selected via the I²C bus. 3.3.5 Filter Tuning All filters are tuned via a reference phase-locked loop. The PLL is based on a trap filter, a phase comparator and an internal loop filter (capacitor). The reference signal is the continuous carrier wave from the Chroma VCO (4.43 MHz or 3.58 MHz). The PLL adjusts the center frequency of the trap until it equals the reference signal.The PLL tuning voltage is used to adjust all other integrated filters. The Bell filter is fine-tuned with a second PLL during the frame retrace. The Bell filter tuning voltage is memorized on an external capacitor (BTUN Pin). 3.4 VIDEO CIRCUIT 3.4.1 RGB Inputs The RGB (OSD) input has priority over the external RGB input. The RGB (EXT) source is matrixed into YUV signals for color and contrast adjustments. The brightness is adjusted according to the internal and external RGB and OSD RGB signals. The Contrast Control regulates both external and internal RGB signals and has a maximum attenuation of -24 dB. It also regulates the OSD RGB signal and its maximum attenuation is limited to -12 dB. The Contrast Control for RGB (OSD) input can be disabled via the bus. The brightness of the RGB (OSD) input varies according to the main brightness level. The RGB (EXT) insertion signal can be disabled or forced via the bus. A fast blanking detector on the external fast blanking input is able to detect the Fast Blanking pulse occurrence at each frame and then memorizes it until the end of the next frame. RGB Insertion is controlled either by an external signal on the FBEXT pin or via the I²C bus. The Fast Blanking detection status is sent to the I²C bus read register. 3.4.2 YCrCb Mode External YCrCb signals can be applied to RGB (EXT) inputs. Two input modes are possible: The Sync signal is applied to CVBS input, the Y signal is applied to GEXT, the Cr signal is applied to REXT and the Cb signal is applied to BEXT. The Y signal is applied to CVBS input, the Cr signal is applied to REXT and the Cb signal is ap-
plied to GEXT. The trap and luma delay line must be disabled by the I²C bus and peaking must be set to minimum. The OSD fast blanking input has several functions: OSD Insertion Control, RGB Output Blanking or Half Contrast Control. 3.4.3 Half-Contrast Control A 6 dB gain reduction will be applied to the internal YUV signals when the half-contrast function is turned ON, and the voltage of the half-contrast input exceeds the threshold (0.7 V Typ.). The Half Contrast input is combined with the FBOSD input. 3.4.4 YUV to RGB Matrix The PAL/SECAM matrix is provided and a specific NTSC matrix is used when demodulation angles are (0°,104°). 3.4.5 Automatic Cut-off Current Loop The Cut-off Loop range is 2 V (the cut-off level of the RGB outputs is between 1.5 V and 3.5 V, 2.5 V Typ.). The cut-off current is measured sequentially during the three lines after the internal frame blanking signal (the blue cathode current is measured first, then the green and red). The Leakage cathode current is measured during frame blanking and is memorized on an internal capacitor. The Cut-off loop can be frozen via the bus. To prevent cut-off lines from being visible in 16:9 mode, cut-off pulses are not inserted when the cutoff loop is frozen. 3.4.6 Warm-up Detector At power on, the cut-off loop is not active and high DC levels are inserted during "cut-off" lines. The Cut-off loop will be active when the cathode current reaches the warm-up detection threshold. This causes the picture to be displayed from a dark screen. The RGB outputs are blanked until cut-off current is close to the reference voltage. The manual cut-off mode can be selected via the I²C bus. In this mode, the ICATH input pin is inactive and cut-off pulses are not inserted. The RGB black levels are independently controlled by three I²C bus registers (8-bit resolution). The black level of each RGB output can be adjusted within a range of 2.5 V (typ.). 3.4.7 Beam Current Limiter DC Voltage Input The Beam Current Limiter (BCL) will first decrease the contrast and then the brightness when the contrast attenuation reaches -5 dB. 3.4.8 Drive (RGB gain) and DC Adjustment The red, green, blue channel gain for white point adjustment takes place via the bus. The red and
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STV224XH/228XH/223XH - FUNCTIONAL DESCRIPTION
green DC levels for black point adjustment takes place via the bus. 3.4.9 Bus-controlled Contrast & Saturation The Contrast Control regulates internal RGB, external RGB and OSD RGB inputs. The maximum attenuation on internal and external RGB inputs is -24 dB and is limited to -12 dB for OSD RGB inputs. The bus-controlled saturation range is 50 dB. 3.4.10 Bus-controlled Brightness & Sharpness The total brightness range is 60% of the black-towhite amplitude at maximum contrast. The brightness control regulates all RGB sources (internal, external and OSD). Bus-controlled Sharpness (peaking) is provided in PAL/SECAM/NTSC standards. 3.4.11 Bus-controlled Coring on Sharpness When the Coring-on-sharpness function is switched ON, the peaking function is not active on low amplitude signals (below 10 IRE). 3.4.12 Black Stretch The Black Stretch circuit can be disabled via the bus. Two modes are provided, one to be used when the video signal is transmitted with a set-up (7.5IRE set-up in NTSC), the other to be used when the video signal is transmitted without a setup (PAL/SECAM). 3.4.13 Bus-controlled Blue Screen The bus-controlled Blue Screen feature is used to insert a blue background on the screen when no video is available. The RGB OSD can be displayed when the blue screen is active. 3.4.14 White Insertion This function is used to force a full white screen at RGB output via the I²C bus or during Soft mode at Powerdown. 3.4.15 Automatic RGB Peak Regulation (APR) The APR function is used to take advantage of the total RGB output range. APR circuits detect the peak level of the RGB outputs (before OSD insertion) and regulate the RGB gain (contrast) so that signals above the APR threshold are limited. For example, at maximum drive and contrast levels with the APR function switched OFF, the 100 IRE input signal gives 3 V(B/W) to the RGB outputs. With APR ON and the APR threshold at 70 IRE, the 70 IRE input signal gives 3 V (B/W) at RGB outputs. For input signals above 70 IRE, the APR will decrease the RGB gain so that amplitude at the RGB output is always 3 V (B/W). The APR gain control voltage is memorized on an external capacitor where the gain decrease is very fast and the gain increase is very slow (several frames).
The APR function can be enabled or disabled via the I²C bus. APR ON when register 10 hex d0 = 1 and register 07 hex d6 = 0. 3.4.16 RGB Peak Limitation The APR function can be switched into an RGB Peak Limitation function via the I²C bus: register 07 hex, data d6 = 1 and register 10 hex d0 = 1. For this purpose, the APR threshold, tracked with the contrast for the APR function, is changed in a fixed threshold that is independent of the contrast. In this case, the APR threshold I²C control should be set to its maximum value. 3.5 CHROMA CIRCUIT 3.5.1 PAL/SECAM/NTSC Decoders SVHS Chroma input; bus-controlled SVHS mode. 30 dB Automatic Color Control (ACC) range. The ACC function is an automatic gain control of the color amplifier. Integrated chroma base band delay line and ON/ OFF bus control. Automatic standard identification, with possibility of forcing the standard via the bus. 3-crystal application capability for the South American market: The first crystal on Pin XTAL1 (3.5X MHz only), the second crystal on Pin XTAL2 (3.5X MHz only), and the third crystal on Pin XTAL3/BTUN (3.5X MHz only, used for PAL/NTSC application only). 3.5.2 PAL/NTSC Decoder ACC carried out by peak detector on synchronous demodulation of the burst. Fully-integrated killer function. VCO using two standard crystals: 4.43 MHz and 3.58 MHz. One crystal is internally selected depending on the standard selection. A third crystal can be used in PAL/NTSC applications only. VCO reference signal is available on Pin X1. 4.433619 MHz Crystal specification. Mode of operation: serial resonance (without load capacity), Motional capacitance: CM = 13fF ±3fF, Shunt capacitance: CP < 7pF, Serial resistance: RS < 70W. 3.579545 MHz Crystal specification (NTSC M). Mode of operation: serial resonance (without load capacity), Motional capacitance: CM = 11fF ±3fF,
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STV224XH/228XH/223XH - FUNCTIONAL DESCRIPTION
Shunt capacitance: CP < 7 pF, Serial resistance: RS < 70 W. 3.575611 MHz XTAL specification (PAL M). Mode of operation: serial resonance (without load capacity), Motional capacitance: CM = 12fF ±2fF, Shunt capacitance: CP < 7pF, Serial resistance: RS < 70W. 3.582056 MHz XTAL specification (PAL N). Mode of operation: serial resonance (without load capacity), Motional capacitance: CM = 12fF ±2fF, Shunt capacitance: CP < 7pF, Serial resistance: RS < 70W. 0° and ± 90° demodulation angles for PAL. Bus-controlled demodulation angles (0, 90) or (0, 104) are available in NTSC mode. Bus-controlled Hue adjustment is available in NTSC mode. 3.5.2.1 NTSC Automatic Flesh Control Two automatic flesh control characteristics are available via the bus.The normal flesh control with ±10° correction and a total action range of ±60° and the wide flesh control with ±20° correction and a total action range of ±90°.
3.5.3 SECAM Decoder The following functions are fully-integrated: Killer, PLL demodulator and De-emphasis functions. 3.5.4 Chroma Standard Identification R-Y and B-Y outputs are blanked during Color Search mode. The color is displayed only when the chroma standard has been identified. 3.5.4.1 Sequential Identification Three identification sequences: XTAL1 (4.43 MHz) mode to identify either PAL or NTSC. XTAL2 (3.58 MHz) mode to identify either PAL or NTSC. SECAM mode (XTAL1 selection). In 3-crystal applications, the SECAM sequence is replaced by XTAL3 selection to identify either PAL or NTSC signals. 3.5.4.2 SECAM Identification SECAM mode is locked after two identified SECAM sequences. SECAM mode can be selected in 50 Hz mode only. PAL/NTSC has priority over SECAM standard.
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STV224XH/228XH/223XH - ELECTRICAL CHARACTERISTICS
4 ELECTRICAL CHARACTERISTICS
4.1 ABSOLUTE MAXIMUM RATINGS
Symbol VCC_8V VCC_5V VESD TOPER TSTG 8 V Supply Voltage 5 V Supply Voltage Capacitor 100 pF discharged via 1.5 kW serial resistance (Human Body Model) Operating Temperature Storage Temperature Parameter Value 10 7 Unit V V kV °C °C
±2
0, +70 -55, +150
4.2 THERMAL DATA Refer to Section 10 for more information about TQFP64 cooling.
Symbol RthJA RthJA RthJC Parameter Junction-ambient Thermal Resistance at ambient 25°C Junction-ambient Thermal Resistance at ambient 25°C Junction-case Thermal Resistance at ambient 25°C SDIP56 TQFP64 TQFP64 Typical Value 40 50 10 Unit °C/W °C/W °C/W
4.3 SUPPLY (Supplies at Typical Values, Tamb = 25° C, I²C bus register at power-on reset value, automatic cut-off mode, unless otherwise specified).
Symbol VCCIF VCCD VCC1 VCC2 ICCIF ICC5F I CCI ICC2 PD Parameter IF Circuit Supply Voltage Bus & Digital Supply Voltage Chroma, Scanning Supply Voltage Video Supply Voltage VCCIF Current Consumption VCC5F Current Consumption VCCI Current Consumption VCC2 Current Consumption Total Power Dissipation Test Conditions Min. 4.75 4.75 7.6 7.6 Typ. 5 5 8 8 58 48 40 56 1300 Max. 5.25 5.25 8.4 8.4 Unit V V V V mA mA mA mA mW
VCCIF = 5 V. No-load at RGB outputs. VCCD = 5 V. No-load at RGB outputs. VCCI = 8 V. No-load at RGB outputs. VCC2 = 8 V. No-load at RGB outputs. VCCI = VCC2 = 8 V, VCCIF = VCC5V = 5 V No-load at RGB outputs.
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STV224XH/228XH/223XH - ELECTRICAL CHARACTERISTICS
4.4 IF SECTION Tamb = 25°C, VCCIF = 5 V, VCC2 = 8V, IF input =10 mVRMS (at sync level for negative modulation, or at peak white level for positive modulation). Video modulation DSB, D = 90% and fSC = 33.4 MHz in B/G, D = 95% in L, fPC = 38.9 MHz. Video Bandwidth = 5 MHz, AF = 1 kHz, Audio Bandwidth = 20 kHz, FMdev = ±27 kHz. Volume Attenuation = 0 dB, AM carrier input: 10 mVRMS , 54% modulated unless otherwise specified. 4.4.1 PIF Amplifier
Symbol VINPIF RINPIF CINPIF GR VMax. Parameter Input Sensitivity Differential Input Resistance Differential Input Capacitance Gain Control Range Maximum Input Signal Test Conditions -1dB at Video Output (INTCVBSOUT) PIF Inputs. PIF Inputs. Min. 75 1.5 1.5 Typ. 85 2 2 65 0.15 Max. 95 2.5 2.5 Unit µVRMS kW pF dB VRMS
+1dB at Video Output (INTCVBSOUT) 0.12
4.4.2 PIFAGC Negative Modulation
Symbol IC ID IC/I