https://github.com/polykit/adsr-3310-8

Kicad schematics and PCB layout for an 8 channel ADSR based on CEM3310/AS3310
https://github.com/polykit/adsr-3310-8

adsr as3310 cem3310 eurorack kicad pcb polyphonic schematics

Last synced: about 2 months ago
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Kicad schematics and PCB layout for an 8 channel ADSR based on CEM3310/AS3310

• Host: GitHub
• URL: https://github.com/polykit/adsr-3310-8
• Owner: polykit
• Created: 2021-11-06T20:01:43.000Z (over 3 years ago)
• Default Branch: master
• Last Pushed: 2021-11-06T20:26:56.000Z (over 3 years ago)
• Last Synced: 2025-03-16T17:18:44.889Z (2 months ago)
• Topics: adsr, as3310, cem3310, eurorack, kicad, pcb, polyphonic, schematics
• Homepage:
• Size: 1.37 MB
• Stars: 13
• Watchers: 3
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

        
# Polykit ADSR-3310-8

Here you can find Kicad schematics and PCB layout for an 8 channel ADSR based on the CEM3310/AS3310 integrated circuit. It has a separate control board for all 4 parameters and offers gate and trigger input and CV output. Power is supplied by standard +12V/-12V Eurorack connector.

![ADSR-3310-8 PCB](adsr-3310-8-pcb.jpg)

## BOM

## Calibration

### ADR

Leave 3310 ICs out and turn attack, decay and release control to maximum. Adjust trimpots until you measure -240mV on all three test points to ground.

### Timing

## References

https://www.synthxl.com/wp-content/uploads/2018/04/Crumar-Trilogy-Schematic.pdf#page=13

https://www.vintagesynthparts.com/wp-content/uploads/2016/08/Crumar-Stratus-Service-Manual.pdf#page=14

http://www.muzines.co.uk/articles/electro-music-engineer-cem-3310/3647

https://www.alfarzpp.lv/eng/sc/AS3310.pdf

https://datasheetspdf.com/pdf-file/104287/ETC/CEM3310/1