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Adafruit Si5351 Clock Generator Breakout Created by lady ada Table of Contents Overview 3 Pinouts 5 Power Pins 5 I2C Pins 5 Assembly 7 Prepare the header strip: 7 Add the breakout board: 7 And Solder 8 Arduino Code 9 Wiring for Arduino 9 Download Adafruit Si5351 9 Load Demo Sketch 10 Library Reference 12 Begin 12 Set up the PLL 12 Set up the PLL with integer mode 13 Set up the PLL with fractional mode 13 Set up the clock divider 13 Additional R Divider 14 Software 14 CircuitPython Code 17 CircuitPython Microcontroller Wiring 18 Python Computer Wiring 18 CircuitPython Installation of SI5351 Library 19 Python Installation of SI5351 Library 19 CircuitPython & Python Usage 20 Configure Phase Lock Loops 20 Configure Clock Outputs 21 Enabling Outputs 23 Full Example Code 23 Python Docs 24 Downloads 25 Software 25 Datasheet 25 Schematic and PCB Print 25 Adafruit Industries Page 2 of 26