https://github.com/adafruit/Adafruit-Si5351A-Clock-Generator-Breakout-PCB

PCB files for the Adafruit Si5351A Clock Generator Breakout
https://github.com/adafruit/Adafruit-Si5351A-Clock-Generator-Breakout-PCB

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PCB files for the Adafruit Si5351A Clock Generator Breakout

• Host: GitHub
• URL: https://github.com/adafruit/Adafruit-Si5351A-Clock-Generator-Breakout-PCB
• Owner: adafruit
• License: other
• Created: 2016-08-04T22:47:09.000Z (about 8 years ago)
• Default Branch: master
• Last Pushed: 2019-05-22T15:27:19.000Z (over 5 years ago)
• Last Synced: 2024-06-09T22:39:30.281Z (5 months ago)
• Size: 625 KB
• Stars: 13
• Watchers: 9
• Forks: 7
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: license.txt

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README

        
## Adafruit Si5351A Clock Generator Breakout PCB




Click here to purchase one from the Adafruit shop

Never hunt around for another crystal again, with the Si5351A clock generator breakout from Adafruit! This chip has a precision 25MHz crystal reference and internal PLL and dividers so it can generate just about any frequency, from <8KHz up to 150+ MHz.

The Si5351A clock generator is an I2C controller clock generator. It uses the onboard precision clock to drive multiple PLL's and clock dividers using I2C instructions. By setting up the PLL and dividers you can create precise and arbitrary frequencies. There are three independent outputs, and each one can have a different frequency. Outputs are 3Vpp, either through a breadboard-friendly header or, for RF work, an optional SMA connector.

We put this handy little chip onto it's own breakout board PCB, with a 3.3V LDO regulator so it can be powered from 3-5VDC. We also put level shifting circuitry on the I2C lines so you can use this chip safely with 3V or 5V logic.

PCB files for the Adafruit Si5351A Clock Generator Breakout. The format is EagleCAD schematic and board layout

- http://www.adafruit.com/product/2045

### License

Adafruit invests time and resources providing this open source design, please support Adafruit and open-source hardware by purchasing products from [Adafruit](https://www.adafruit.com)!

All text above must be included in any redistribution

Designed by Limor Fried/Ladyada for Adafruit Industries.

Creative Commons Attribution/Share-Alike, all text above must be included in any redistribution. 

See license.txt for additional information.