[sdiy] VCO waveform logic selection

Michael Ruberto frankentron at hotmail.com
Tue Sep 11 15:02:31 CEST 2007


JB

You could try a better device for starters. Get samples of the ADG333 from 
Analog Devices. They handle signal levels up to the supply rails and have 
2.4V HI level digital inputs.
http://www.analog.com/en/prod/0%2C2877%2CADG333A%2C00.html

M. A. Ruberto


>From: jbv <jbv.silences at club-internet.fr>
>To: synth-diy at dropmix.xs4all.nl
>Subject: [sdiy] VCO waveform logic selection
>Date: Tue, 11 Sep 2007 11:12:53 +0200
>
>Hi guys,
>
>Let's say I have a vco module that outputs various waveforms at +-5V.
>And I want to digitally select 1 of these ouputs to send it to the input
>
>of another module. What is the best way to proceed ?
>
>would some analog mux like the 4051 do, if its power supply is set
>to +-7.5V ? If yes, how to handle logic selection signals, especially
>if they're generated by 3V logic uC ?
>
>Thanks in advance,
>JB
>
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