SGS STV8223B free download

File name STV8223B.pdf

STV8223B MULTISTANDARD VIDEO AND SOUND IF SYSTEM WITH AUDIO AND VIDEO SWITCHES . . . . . . . VIDEO PLL DEMODULATION SOUND PLL DEMODULATION NEGATIVE MODULATION AGC FOR NEGATIVE MODULATION AUDIO SWITCH DC VOLUME CONTROL VIDEO SWITCH SHRINK24 (Plastic Package) DESCRIPTION The STV8223B is a pictureand sound IF processor for multistandard application with very few external components and adjustments. It provides the audio and video switches for one SCART plug application. PIN CONNECTIONS PIF PLL FILTER AFC OUTPUT CVBS OUTPUT SWITCHING INPUT (INT/EXT) IF LC IF LC AUDIO HIGH PASS FILTER 2nd IF SOUND INPUT AUDIO AND 2nd IF DECOUPLING INTERNAL VIDEO INPUT VIDEO SWITCH OUTPUT EXTERNAL VIDEO INPUT 1 2 3 4 5 6 7 8 9 10 11 12 24 23 22 21 20 19 18 17 16 15 14 13 ORDER CODE : STV8223B TUNER AGC STARTING POINT ADJUSTMENT TUNER AGC OUTPUT AGC CAPACITOR NOT TO BE CONNECTED IF INPUT IF INPUT GROUND VCC EXTERNAL AUDIO INPUT FM DEMODULATED AUDIO OUTPUT AUDIO SWITCH OUTPUT VOLUME CONTROL + MUTE 8223B-01.EPS January 1997 1/10 STV8223B BLOCK DIAGRAM EXT CVBS AFC OUTPUT V CC 5 6 1 12 6dB 2 17 18 11 10 SWITCHED CVBS PIF PLL & AFC 19 IF INPUT 20 VID AMP WHITE NOISE & SPOT INVERT 3 SFE 5.5 SFE 6.5 CVBS OUT 22 TUNER AGC OUTPUT AGC Int/Ext LOGIC INTERFACE 4 23 TUNER AGC 24 AUDIO Vref MUTE 14 13 16 15 7 9 DC VOLUME SIF PLL LIMITER 8 STV8223B SWITCHED AUDIO EXT AUDIO AUDIO OUT ABSOLUTE MAXIMUM RATINGS Symbol VS Vx Tstg Toper Supply Voltage Tuner AGC Voltage Storage Temperature Operating Temperature Parameter Value 13.5 VCC -40, +150 0, +70 Unit V o o C C Symbol Rth (j-a) Parameter Junction-ambient Thermal Resistance Max. Value 75 Unit o C/W 2/10 8223B-02.TBL THERMAL DATA 8223B-01.TBL V 8223B-02.EPS STV8223B ELECTRICAL CHARACTERISTICS (Tamb = 25°C, VCC = 9V, IF input = 10mVRMS sync level at B/G, Video modulation DSB, D = 90% at B/G, fPC = 38.9MHz, fSC = 33.4MHz, Video BW = 5MHz, Sound carrier input : 5.5MHz, 10mVRMS, fM = 1kHz, Audio BW = 20kHz, f = ±50kHz, Volume attenuation = 0dB, unless otherwise specified) Symbol SUPPLY VCC ICC V19-20 R 19-20 C 19-20 Gr Supply Voltage Supply Current Input Sensitivity (RMS) Differential Input Resistance Differential Input Capacitance Gain Control Range Max Input Signal Vision Carrier Capture AFC Slope Amplitude Amplitude Difference Top Sync Level Zero Carrier Level Bandwidth Differential Gain Differential Phase Residual Carrier Signal (RMS Value) Residual 2nd Harmonic (RMS Value) Internal Bias of Emitter Follower Signal to Noise Ratio Intermodulation 1.07MHz White Noise Threshold Voltage White Noise Insertion Level Black Noise Threshold Voltage Black Noise Insertion Level Charging Current Discharge Current Charging/Discharging Ratio Maximum Sinked Current Current Slope Maximum Tuner Plus Sinked Current S Parameter Test Conditions Min. 8 Typ. 9 70 70 2 2 68 180 Max. 12.6 95 Unit V mA µVRMS k pF dB mVRMS I17, VCC = 9V -3dB Video at Output IF AMPLIFIER +1dB Video at Output -1.4 See Figure 21