INTEGRATED CIRCUITS DATA SHEET TDA4557 Multistandard decoder Product specification File under Integrated Circuits, IC02 March 1991 Philips Semiconductors Product specification Multistandard decoder GENERAL DESCRIPTION The TDA4557 is a monolithic integrated multistandard colour decoder for the PAL, SECAM, NTSC 3.
58 MHz and NTSC 4.
43 MHz standards.
FEATURES Chrominance part • Gain controlled chrominance amplifier for PAL, SECAM and NTSC • ACC rectifier circuits (PAL/NTSC, SECAM) • Burst blanking (PAL) in front of 64 µs glass delay line • Chrominance output stage for driving the 64 µs glass delay line (PAL, SECAM) • Limiter stages for direct and delayed SECAM signal • SECAM permutator Demodu...

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