TDA2579B Description
TDA2579B The TDA2579B generates and synchronizes horizontal and vertical signals. The device has a 3 level sandcastle output; a transmitter identification signal and also 50/60 Hz identification.
TDA2579B Key Features
- Horizontal phase detector, (sync to oscillator), sync separator and noise inverter
- Triple current source in the phase detector with automatic selection
- Second phase detector for storage pensation of the horizontal output
- Stabilized direct starting of the horizontal oscillator and output stage from mains supply
- Horizontal output pulse with constant duty cycle value of 29 µs
- Internal vertical sync separator, and two integration selection times
- Divider system with three different reset enable windows
- Synchronization is set to 628 divider ratio when no vertical sync pulses and no video transmitter is identified
- Vertical parator with a low DC feedback signal
- 50/60 Hz identification output bined with mute function