AD724
Key Features
- No external delay lines or filters are required
- The AD724 may be powered down when not in use
- The AD724 accepts either FSC or 4FSC clock
- The AD724 also accepts the subcarrier clock from an external video source
- If available, the AD724 will also accept a standard CSYNC signal by connecting VSYNC to Logic HI and applying CSYNC to the HSYNC pin
- The AD724 contains decoding logic to identify valid horizontal sync pulses for correct burst insertion
- Delays in the U and V chroma filters are matched by an on-chip sampled-data delay line in the Y signal path
- These low-pass filters are optimized for minimum pulse overshoot
- The overall luma delay, relative to chroma, has been designed to be time aligned for direct input to a television’s baseband
- The AD724 es in a space-saving SOIC and is specified for the 0°C to +70°C mercial temperature range
