[sdiy] Alfa AS3350 power supply question

Mattias Rickardsson mr at analogue.org
Mon Jan 27 09:40:20 CET 2025


David G Dixon via Synth-diy <synth-diy at synth-diy.org> skrev:

> ...
> Actually, since the signals to and from the AS3350 are very small (divided
> down by a factor of 100 to ensure low OTA distortion), I can actually run
> the chip from +/-5V.  Since 78L05 and 79L05 are quite a bit cheaper than
> 78L09 and 79L09, that's probably what I'll do.
>

Doesn't the resulting audio quality go down slightly for lower supply
voltages? It seems like this is a common side effect on other chips at
least.

/mr

>
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