[sdiy] multichannel smoothed S&H and separate boards

[Antti Huovilainen]

Hi

I'm planning a system where one DAC centrally provides many control 
voltages to circuits running on separate boards (similar setup as 
polyphonic synths use). I'm using a similar smoothing system as some 
Oberheim synths used:
DAC -> MUX -> "big" cap -> resistor -> small cap -> buffer

Question goes: Isn't it better to have the MUXes and "big" (22nF or so) 
capacitors on the mainboard, so that fast signals don't need to be passed 
through "long" (20 inches) interconnects? If so, would it be better to 
have the smoothing resistors on the main board or on the separate circuit 
boards?

Antti

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