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{"id":8528993124505,"title":"Adafruit Si5351A Clock Generator Breakout Board - 8KHz to 160MHz [ADA2045]","handle":"adafruit-si5351a-clock-generator-breakout-board-8khz-to-160mhz-ada2045","description":"\u003ch3\u003eAdafruit Si5351A Clock Generator Breakout Board - 8KHz to 160MHz [ADA2045]\u003c\/h3\u003e\n\u003cp id=\"b\"\u003eNever hunt around for another crystal again, with the Si5351A clock generator\nbreakout from Adafruit! This chip has a precision 25MHz crystal reference and\ninternal PLL and dividers so it can generate just about any frequency, from\n\u0026lt;8KHz up to 150+ MHz. The Si5351A clock generator is an I2C controller clock\ngenerator. It uses the onboard precision clock to drive multiple PLL's and\nclock dividers using I2C instructions. By setting up the PLL and dividers you\ncan create precise and arbitrary frequencies. There are three independent\noutputs, and each one can have a different frequency. Outputs are 3Vpp, either\nthrough a breadboard-friendly header or, for RF work, an optional SMA\nconnector. We put this handy little chip onto it's own breakout board PCB,\nwith a 3.3V LDO regulator so it can be powered from 3-5VDC. We also put level\nshifting circuitry on the I2C lines so you can use this chip safely with 3V or\n5V logic.\u003c\/p\u003e \n\n\u003ch3\u003eProduct Features\u003c\/h3\u003e\n \u003cul class=\"a\"\u003e\n \u003cli\u003eSi5351A clock generator (from 8KHz to 150+ MHz)\u003c\/li\u003e\n \u003cli\u003ei2c interface\u003c\/li\u003e\n \u003cli\u003e3 independent outputs\u003c\/li\u003e\n \u003cli\u003eOutputs are 3Vpp\u003c\/li\u003e\n \u003cli\u003eIncludes 3.3V LDO regulator and level shifting circuitry\u003c\/li\u003e\n \u003c\/ul\u003e","published_at":"2025-09-23T10:33:28+10:00","created_at":"2025-09-23T10:33:25+10:00","vendor":"Adafruit","type":"Single Board Computers","tags":["industryDE_Sep2025"],"price":11200,"price_min":11200,"price_max":11200,"available":true,"price_varies":false,"compare_at_price":null,"compare_at_price_min":0,"compare_at_price_max":0,"compare_at_price_varies":false,"variants":[{"id":45739263590553,"title":"Default Title","option1":"Default Title","option2":null,"option3":null,"sku":"de-B00SK8LNYG","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"Adafruit Si5351A Clock Generator Breakout Board - 8KHz to 160MHz [ADA2045]","public_title":null,"options":["Default Title"],"price":11200,"weight":20,"compare_at_price":null,"inventory_management":"shopify","barcode":"717520029267","requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}}],"images":["\/\/soundstores.net\/cdn\/shop\/files\/de-B00SK8LNYG.jpg?v=1775748649","\/\/soundstores.net\/cdn\/shop\/files\/61LaMiyp31L.jpg?v=1758587607","\/\/soundstores.net\/cdn\/shop\/files\/61Jq4cMvqWL.jpg?v=1758587608"],"featured_image":"\/\/soundstores.net\/cdn\/shop\/files\/de-B00SK8LNYG.jpg?v=1775748649","options":["Title"],"media":[{"alt":null,"id":34597097046169,"position":1,"preview_image":{"aspect_ratio":1.333,"height":1200,"width":1600,"src":"\/\/soundstores.net\/cdn\/shop\/files\/de-B00SK8LNYG.jpg?v=1775748649"},"aspect_ratio":1.333,"height":1200,"media_type":"image","src":"\/\/soundstores.net\/cdn\/shop\/files\/de-B00SK8LNYG.jpg?v=1775748649","width":1600},{"alt":null,"id":34597097078937,"position":2,"preview_image":{"aspect_ratio":1.333,"height":1200,"width":1600,"src":"\/\/soundstores.net\/cdn\/shop\/files\/61LaMiyp31L.jpg?v=1758587607"},"aspect_ratio":1.333,"height":1200,"media_type":"image","src":"\/\/soundstores.net\/cdn\/shop\/files\/61LaMiyp31L.jpg?v=1758587607","width":1600},{"alt":null,"id":34597097111705,"position":3,"preview_image":{"aspect_ratio":1.333,"height":1200,"width":1600,"src":"\/\/soundstores.net\/cdn\/shop\/files\/61Jq4cMvqWL.jpg?v=1758587608"},"aspect_ratio":1.333,"height":1200,"media_type":"image","src":"\/\/soundstores.net\/cdn\/shop\/files\/61Jq4cMvqWL.jpg?v=1758587608","width":1600}],"requires_selling_plan":false,"selling_plan_groups":[],"content":"\u003ch3\u003eAdafruit Si5351A Clock Generator Breakout Board - 8KHz to 160MHz [ADA2045]\u003c\/h3\u003e\n\u003cp id=\"b\"\u003eNever hunt around for another crystal again, with the Si5351A clock generator\nbreakout from Adafruit! This chip has a precision 25MHz crystal reference and\ninternal PLL and dividers so it can generate just about any frequency, from\n\u0026lt;8KHz up to 150+ MHz. The Si5351A clock generator is an I2C controller clock\ngenerator. It uses the onboard precision clock to drive multiple PLL's and\nclock dividers using I2C instructions. By setting up the PLL and dividers you\ncan create precise and arbitrary frequencies. There are three independent\noutputs, and each one can have a different frequency. Outputs are 3Vpp, either\nthrough a breadboard-friendly header or, for RF work, an optional SMA\nconnector. We put this handy little chip onto it's own breakout board PCB,\nwith a 3.3V LDO regulator so it can be powered from 3-5VDC. We also put level\nshifting circuitry on the I2C lines so you can use this chip safely with 3V or\n5V logic.\u003c\/p\u003e \n\n\u003ch3\u003eProduct Features\u003c\/h3\u003e\n \u003cul class=\"a\"\u003e\n \u003cli\u003eSi5351A clock generator (from 8KHz to 150+ MHz)\u003c\/li\u003e\n \u003cli\u003ei2c interface\u003c\/li\u003e\n \u003cli\u003e3 independent outputs\u003c\/li\u003e\n \u003cli\u003eOutputs are 3Vpp\u003c\/li\u003e\n \u003cli\u003eIncludes 3.3V LDO regulator and level shifting circuitry\u003c\/li\u003e\n \u003c\/ul\u003e"}

Adafruit Si5351A Clock Generator Breakout Board - 8KHz to 160MHz [ADA2045]

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Adafruit Si5351A Clock Generator Breakout Board - 8KHz to 160MHz [ADA2045]

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.

Product Features

  • Si5351A clock generator (from 8KHz to 150+ MHz)
  • i2c interface
  • 3 independent outputs
  • Outputs are 3Vpp
  • Includes 3.3V LDO regulator and level shifting circuitry