Description
The CoolAudio V2164 quad vca chip is a great chip for making VCFs or VCAs. You get four independent voltage controlled amplifiers(VCAs) in a single package, so per-VCA cost is very low.
Each VCA has a 100dB dynamic range and accepts control voltages from 0V (0dB) to 3.3V (-100dB). Note that this is an exponential response of -33mV/dB. Negative voltages can give gain up to +20dB. Supply voltage is ±4V to ±18V.
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