Cleans a Composite-Video-Signal and returns Csync

Devices like professional broadcast-monitors, crt-projectors or Extron RGB-Interfaces require pure Csync on their sync-inputs. If your source only outputs composite video instead of composite sync you can use this circuit to strip the video signal and receive pure csync.

2 x 0.1uf Capacitors

1 x 680k Resistor

1 x LM1881n

Requires 5-12V to operate