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AD633 using ADIsimPE

Question asked by crlMIDI on Jan 11, 2016
Latest reply on Jan 14, 2016 by crlMIDI

I tried to simulate the voltage-controlled quadrature oscillator of the AD633 application note, using ADIsimPE, but it said there are too many analog nodes. I note that the model for this fairly old part hasn't been encryped yet. LT-Spice doesn't seem be able to start that kind of oscillator. That's a bit disappointing because there are only two multipliers in the circuit, and the parts are too expensive for someone in retirement to buy just for a try-out (I'm interested in music theory - simulating a monochord).

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