[sdiy] Quantizer DAC or PWM?

Mr&MrsAccount hbissell at wowway.com
Tue Dec 20 15:40:22 CET 2022

Check out the Linear Tech LTC2644 / 2645 PWM to DAC converter.  They are available up to 12 bit resolution. You can feed a continuous PWM which is converted to a steady DAC output, 
or send a PWM only once and have the DAC hold that.  Sample/hold for free. It can be used as a P/V converter. 

-----Original Message-----

From: mark <synth-diy at synth-diy.org>
To: Florian <fanwander at mnet-online.de>
Cc: synth-diy <synth-diy at synth-diy.org>
Date: Tuesday, 20 December 2022 8:47 AM EST
Subject: Re: [sdiy] Quantizer DAC or PWM?

Couldn’t one do something like that to replace an AM6070 µ-law DAC?   Mark    
  On Dec 20, 2022, at 12:41 PM, Florian Anwander <fanwander at mnet-online.de> wrote:   HiAm 19.12.22 um 22:54 schrieb Didier Leplae via Synth-diy:  Ah yes, a separate output for octaves is brilliant!  btw Scott rider aka Old Crow used a similar trick to achieve Hz/V characteristics with an 8Bit:https://github.com/cs80/CS15_SSK/He uses a dual channel DAC MCP4922. DAC #1 is providing different reference voltages for each octave, which then are used by the DAC #2 which converts the same twelve note data to a spreading CV the higher the octave / refence voltage from DAC#1 respectively is.Florian _______________________________________________Synth-diy mailing listSynth-diy at synth-diy.orghttp://synth-diy.org/mailman/listinfo/synth-diySelling or trading? Use marketplace at synth-diy.org       
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