TDA4651

INTEGRATED CIRCUITS DATA SHEET TDA4651 Multistandard colour decoder with negative colour difference output signals Preliminary specification File under Integrated Circuits, IC02 August 1993 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: Gain controlled chrominance amplifier ACC demodulation controlled by system scanning Internal colour difference signal output filters to remove the residual subcarrier PAL / NTSC demodulation – H (burst) and V blanking – PAL switch (disabled for NTSC) – 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 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 ORDERING INFORMATION PACKAGE EXTENDED TYPE NUMBER TDA4651 TDA4651WP Note 1. SOT117-1; 1996 November 25. 2. SOT261-2; 1996 November 25. PINS 28 28 PIN POSITION DIL PLCC MATERIAL plas...