TDA2579C
Overview
- Horizontal sync separator and noise inverter
- Horizontal oscillator
- Horizontal output stage
- Horizontal phase detector (sync to oscillator)
- Triple current source in the phase detector with automatic selection
- Normal phase detector time constant is increased to fast during the vertical blanking period (external switching for VTR conditions not necessary)
- Slow phase detector time constant and gated sync pulse operation are automatically switched on by an internal sync pulse noise level detection circuit
- Fast phase detector time is switched on for locking
- Time constant externally switchable
- Inhibit of horizontal phase detector and video transmitter identification circuit during equalizing pulses and vertical sync pulse
