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 Demodulator part.
- Flyback blanking incorporated in the demodulators (PAL, NTSC, SECAM).
- PAL switch.
TDA4557 Datasheet
