How to order Contact us Distributors Reviews
Register / Login

Select currency

If you'd like to view estimated pricing in other currencies then please select a currency below below.

GBP USD EUR JPY AUD NOK CHF NZD CAD

Please note:

  • Currency conversions are estimates and for information only
  • Your order will be billed in GBP
  • All prices exclude VAT / other local sales taxes
  • Shipping calculated during checkout


Adafruit Si5351A Clock Generator with STEMMA QT - 8KHz to 160MHz

by Adafruit
An image of Adafruit Si5351A Clock Generator with STEMMA QT - 8KHz to 160MHz An image of Adafruit Si5351A Clock Generator with STEMMA QT - 8KHz to 160MHz An image of Adafruit Si5351A Clock Generator with STEMMA QT - 8KHz to 160MHz An image of Adafruit Si5351A Clock Generator with STEMMA QT - 8KHz to 160MHz An image of Adafruit Si5351A Clock Generator with STEMMA QT - 8KHz to 160MHz An image of Adafruit Si5351A Clock Generator with STEMMA QT - 8KHz to 160MHz

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 edge-launch SMA connector for output #1.

To get you going fast, Adafruit spun up a custom-made PCB in the STEMMA QT form factor, making it easy to interface with. The STEMMA QT connectors on either side are compatible with the SparkFun Qwiic I2C connectors. This allows you to make solderless connections between your development board and the Si5351 or to chain it with a wide range of other sensors and accessories using a compatible cable. Onboard 3.3V LDO and level shifters means its ready for use with 3V or 5V power and logic!

Best of all, Adafruit even have a great tutorial and library to get you started! Their code is designed for use with the Arduino-compatible microcontrollers and CircuitPython/Python using I2C support.

Technical Details

  • Datasheets, PCB CAD files, and Fritzing objects available in tutorial

Si5351 specifications:

  • Generates up to 3 non-integer-related frequencies from 8 kHz to 160 MHz
  • I2C user definable configuration  Exact frequency synthesis at each output (0 ppm error)
  • Highly linear VCXO
  • Low output period jitter: 100 ps pp
  • Configurable spread spectrum selectable at each output
  • Operates from a low-cost, fixed frequency crystal: 25 MHz on board
  • Supports static phase offset
  • Programmable rise/fall time control
  • Glitchless frequency changes
  • Excellent PSRR eliminates external power supply filtering
  • Very low power consumption
  • Adjustable output-output dela
  • PCIE Gen 1 compliant
  • Supports HCSL compatible swing

Product Dimensions: 25.3mm x 17.7mm x 4.7mm / 1.0" x 0.7" x 0.2"

Product Weight: 1.7g / 0.1oz

Reviews

User photos

Never hunt around for another crystal again, with the Si5351A clock generator breakout from Adafruit!

ADA5640

You must register for an account and be logged in to view pricing or place an order on the Pimoroni Wholesale store.

If you represent a school or university, a business, or reseller of Maker products then you can sign up for a wholesale account.

If you already have an account you can login to your account here.

Alternatively the easiest way to get your hands on the products we offer is to order them directly from our customer facing online store.

SKU
ADA5640
EAN
0769894023563
Brand
Adafruit
Stock available
37 units
Backorder not allowed on this product
Weight
5g

Video introduction

Guides & tutorials

Search

 

Region

Your search returned no results.

Subscribe

We'll keep you up to date with new product launches!

The good ship

We've been sailing the Maker seas offering our wares since 2012.

  • read about our history
  • what our customers say
  • find a local distributor
  • contact our business team

We manufacture all of our products locally at our workshop in Sheffield, UK

Under one roof

Pimoroni are your one-stop shop for bulk and education purchasing of Raspberry Pi, Pimoroni, micro:bit, Adafruit, Sparkfun, and many other brands.

If you have any questions about what we offer then drop us a line.

Pimoroni Ltd

Unit 1, Parkway Business Park,
Parkway Drive,
Sheffield,
S9 4WN,
United Kingdom

Registered in England and Wales:
Company №: 07510759
VAT Reg №: GB 140 8707 21