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Review on πŸ•’ Adafruit Si5351A Clock Generator Breakout Board - Versatile Frequency Range from 8KHz to 160MHz [ADA2045] by Michael Bressler

Revainrating 5 out of 5

Functions Tested

I wanted to use the Si5351A in a project and thought it would be worth testing its programming and capabilities with this breakout board. I connected to Raspberry Pi4 I2C. The easiest way to get the required values for each frequency is to use Silicon Labs' ClockBuilder Pro, which generates all the register settings. I manually requested 40 frequencies (from 500kHz to 20MHz in 500kHz increments) and put them into a CSV file, then wrote a program that reads the CSV file, finds and tunes to the requested frequency. Worked so well I decided to take an old Raspberry Pi2B, bought a 40 pin socket and a small plated perforated board and built a clock generator for my desktop. I can use VNC from my laptop to set the frequency I want. A NOTICE. The SiLab specification states that the frequency range is from 2.5 kHz to 200 MHz. I tested 2.5kHz and 100MHz (the limit of my digital oscilloscope).

Pros
  • Single Board Computer
Cons
  • Unsure