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SSM 2018 control voltage scaling

Question asked by Westrek on Mar 17, 2014
Latest reply on Mar 19, 2014 by Westrek

I've got an existing vca design set up to replace the DBX 202C vca that incorporates -50mv/db scaling law. I'm trying to adapt this design to replace the original Black Can DBX 202 that used -6 mv/db law. One aspect is that the 2018 ( I know it's being discontinued and I plan to get spares) is the control port impedance is 1 meg and the DBX is approx 200 ohms. I wondering if it's possible to scale it using resistors at the control port. I'm no designer and any thoughts would be appreciated.




Here's my existing 2018 design:


SSM2018 Vca.jpg