Clock Generator - signal generator - 8kHz-160MHz I2C - Si5351A - STEMMA QT / Qwiic - Adafruit 5640

Clock signal generator from Adafruit , which was based on the SI5351A chip. It has been equipped with a 25 MHz crystal oscillator and has an internal PLL loop, thanks to which it can generate any frequency in the range from 8 kHz to 160 MHz . The module uses the I2C interface to communicate with connected devices. It also has two STEMMA QT / Qwiic connectors that allow connections without soldering the leads. The Clock Generator works with a voltage of 3.3 V and 5 V.

Clock Generator - 8kHz-160MHz I2C signal generator - Si5351A - Adafruit 5640.

The subject of the sale is only the signal generator - the Metro board and the breadboard must be purchased separately.

• Generates up to 3 non-integer frequencies ranging from 8 kHz to 160 MHz
• Highly linear VCXO
• Low output period jitter 100 ps pp
• Configurable spread spectrum selectable on each output
• Supports static phase shift
• Very low energy consumption
• Compliant with PCIE Gen 1
• Supports HCSL

• VIN - power pin from 3 V to 5 V
• GND - system ground
• SCL - clock line of the I2C bus
• SDA - data line of the I2C bus
• 0, 1, 2 - independent outputs

• Built-in chip: Si5351A
• Supply voltage: 3.0 V to 5.0 V
• Communication interface: I2C bus
• Frequency Range: 8kHz to 160MHz
• Crystal oscillator: 25MHz
• Number of inputs: three independent
• Leads:
  • solder pads - goldpin connectors raster 2.54 mm for self-soldering included in the set
  • STEMMA QT/Qwiic connectors
• Four mounting holes with a diameter of 2 mm
• Module dimensions: 25.3 x 17.7 x 4.7 mm
• Weight: 1.7g

• Clock Generator - 8kHz-160MHz I2C signal generator - Si5351A
• Goldpin strip 1x16 pin - raster 2.54 mm

Components included in the set.

• Manufacturer's website: Adafruit 5640
• User Guide
• Si5351 Technical Documentation