Video switch using MC1545 circuit

Published:2011/7/12 10:02:00 Author:John | Keyword: Video switch | From:SeekIC

Video switch using MC1545 circuit is as shown. MC1545 is the gated broadband amplifier, which is used as a video switch. The input is with differential mode. The door switch is used to convert two amplifiers A and B. A is selected to high electricity level and B is for low one. The output is also with differential output terminals. Gate input signal refers to TTL level, whose gated conversion time can be 20ns. When the gate signal is at high level, the video input signal is taken as an output signal. When the gate signal is at low level, the amplifier A is at the off state.



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