switching at zero cross/noiseless switching

Caloroso, Michael E CalorosoME at corning.com
Wed Nov 10 22:13:35 CET 1999



> I'm wondering if there's anyone out there who can point me towards a
> resource on switching audio at the zero crossing.  Or for that matter,
> other techniques for noiseless switching at speed.
> 
The ARP ProSoloist uses a technique that might work in your application.

Audio outputs are switched in and out by tying them to the open-collector outputs of ROMs.  The collector shunts the audio to ground when the transistor is enabled, effectively turning off the output.

MC
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