Description
The TDA4691 is a bipolar integrated circuit for sync processing in 50/100 and 60/120 Hz TV sets, preferably in conjunction with the programmable deflection controller TDA9150.
Features
- Sync processor for horizontal (H) and vertical (V) sync pulses generated by internal 13.5 MHz oscillator.
- Stable ‘On Screen Display (OSD)’, if no input signal is present with free running internal oscillator; automatic turn over to locked oscillator, if input signal is available.
- External clock oscillator can be used.
- Standard 50/60 Hz signals are identified automatically.
- Additional outputs for 13.5 MHz, composite sync, 50//60 Hz identification, sig.
TDA4691_PhilipsSemiconductors.pdf
