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INTEGRATED CIRCUITS DATA SHEET TDA4650 Multistandard colour decoder, with negative colour difference output signals Preliminary specification File under Integrated Circuits, IC02 March 1991 Philips Semiconductors Preliminary specification Multistandard colour decoder, with negative colour difference output signals FEATURES Identifies and demodulates PAL, SECAM, NTSC 3.58 and NTSC 4.43 chrominance signals with: · Identification ­ automatic standard identification by sequential inquiry ­ secure SECAM identification at 50 Hz only, with PAL priority ­ four switched outputs for chrominance filter selection and display control ­ external service switch for oscillator adjustment · PAL / NTSC demodulation ­ H (burst) and V blanking ­ PAL switch (disabled for NTSC) QUICK REFERENCE DATA SYMBOL Vp Ip vi(p-p) Vo(p-p) supply current (pin 13) chrominance input voltage (pin 15) (peak-to-peak value) colour-difference output voltage (pin 1) (peak-to-peak value) colour-difference output voltage (pin 3) (peak-to-peak value) colour-difference output voltage (pin 1) (peak-to-peak value) colour-difference output voltage (pin 3) (peak-to-peak value) ORDERING INFORMATION EXTENDED TYPE NUMBER TDA4650 TDA4650WP Note 1. SOT117-1; 1996 November 28. 2. SOT261-2; 1996 November 28. 28 28 PACKAGE PINS DIL PLCC PIN POSITION MATERIAL plastic plastic PAL/NTSC PAL/NTSC SECAM SECAM PARAMETER supply voltage range (pin 13) CONDITIONS - 20 0.42 0.53 0.83 1.06 MIN. 10.8 TYP. 12.0 60 100 0.525 0.665 1.05 1.33 ­ NTSC phase shift (disabled for PAL) ­ PLL-controlled reference oscillator ­ two reference oscillator crystals on separate pins with automatic switching ­ quadrature demodulator with subcarrier reference · SECAM demodulation ­ limiter-amplifier ­ quadrature-demodulator with a single external reference tuned circuit ­ alternate line blanking, H and V blanking ­ de-emphasis TDA4650 · Gain controlled chrominance amplifier · ACC demodulation controlled by system scanning · Internal colour-difference signal output filters to remove the residual subcarrier GENERAL DESCRIPTION The TDA4650 is a monolitic integrated multistandard colour decoder for PAL, SECAM and NTSC (3.58 and 4.43 MHz) with negative colour difference output signals. The colour-difference output signals are fed to the TDA4660/TDA4661, Switched capacitor delay line. MAX. 13.2 - 400 0.66 0.84 1.32 1.67 UNIT V mA mV V V V V CODE SOT117(1) SOT261(2) March 1991 2 Philips Semiconductors Preliminary specification Multistandard colour decoder, with negative colour difference output signals TDA4650 March 1991 3 Fig.1 Block diagram. Philips Semiconductors Preliminary specification Multistandard colour decoder, with negative colour difference output signals PINNING SYMBOL -(R-Y)o -(R-Y)DE -(B-Y)o -(B-Y)DE -(B-Y)CL -(R-Y)CL SECREF SECREF SECREF SECREF GND CD VP CDC PIN 1 2 3 4 5 6 7 8 9 10 11 12 13 14 DESCRIPTION -(R-Y) output (R-Y) de-emphasis -(B-Y) output (B-Y) de-emphasis (B-Y) clamping (R-Y) clamping SECAM re