I want to feed 12 channels of RGB signals, 1 Y/C signal (i.e.) 38 signals as input to crosspoint switch. The available crosspoint switch (ADV3201) supports only 32 inputs : 32 outputs. I want to derive 2 outputs from any input channels that I want without any limitation. So kindly suggest me Analog devices parts to implement my logic.
A1) Yes you can run all the same colors through one device
A2) Only the 3 channel parts are avaliable.
B) same answers as in part A
C) 1-13 analog buffer? Other than a large array of op-amps with good…
C) 1-13 analog buffer? Other than a large array of op-amps with good circuit design you might look at the ADV3201, 32x32. Just use one input pair and map 13 output pairs to the same input.
For parts A & B I'd run one RGB channel through the same chip, not split it across three chips. Trace lengths for one channel need to be keep the same. Mismatched trace lengths will cause phase differences between the color signals creating possible color ghosting.