SI5351 High Frequency square wave Signal Generator Module

The SI5351 High Frequency Square Wave Signal Generator Module is a highly versatile clock generator module based on the Silicon Labs SI5351 IC. It supports multiple independent clock outputs with programmable frequencies, making it ideal for use in amateur radio, RF systems, microcontroller projects, and frequency testing applications. The module interfaces via I2C and provides precision frequency control from 8kHz to 160MHz with onboard EEPROM support.

Key Features of SI5351 High Frequency Square Wave Signal Generator Module:

• Multi-Output: Up to 3 programmable clock outputs (CLK0, CLK1, CLK2).
• Wide Frequency Range: Generates frequencies from 8kHz to 160MHz.
• Phase and Frequency Control: Each output can be independently configured.
• I2C Interface: Easy configuration using microcontrollers and Arduino boards.
• Stable Oscillator: Uses 25MHz or 27MHz crystal for stable frequency generation.
• Onboard EEPROM: Stores user-defined frequency configurations.

Technical Specifications of SI5351 High Frequency Square Wave Signal Generator Module:

• Operating Voltage: 3.3V to 5V
• Communication Interface: I2C (Address: 0x60 or 0x61)
• Output Frequency Range: 8kHz to 160MHz
• Output Type: Square wave (CMOS logic)
• Oscillator: 25MHz Crystal Oscillator
• Number of Outputs: 3 (CLK0, CLK1, CLK2)
• Frequency Accuracy: Depends on crystal quality; typically ±50ppm

Mechanical Specifications of SI5351 High Frequency Square Wave Signal Generator Module:

• Module Dimensions: Approx. 22mm x 17mm
• Pin Header: 6-pin 2.54mm pitch (GND, VCC, SDA, SCL, CLK0, CLK1)
• Mounting: Through-hole pins for breadboards or PCBs
• PCB Color: Typically blue or black

Dimensions:

• Length: 22mm
• Width: 17mm
• PCB Thickness: 1.6mm
• Pin Pitch: 2.54mm

Mounting Options:

• Breadboard Friendly: Fits standard 2.54mm pitch breadboards.
• Solder Mounting: Can be soldered directly onto PCBs or perf boards.

Schematic Diagram, Connection, Wiring and Pinout of SI5351 Module:

• Pinout: GND, VCC, SDA, SCL, CLK0, CLK1 (CLK2 accessible via solder pad or breakout)
• Connection: Connect VCC and GND to power supply; use SDA and SCL for I2C communication.
• Wiring: Use I2C pull-up resistors (typically 4.7kΩ) if not onboard.

Datasheet of SI5351 High Frequency Square Wave Signal Generator Module:

• Download SI5351 Datasheet (PDF)

Applications of SI5351 High Frequency Square Wave Signal Generator Module:

• Amateur Radio: Frequency synthesis for SDR, VFO, and LO applications.
• Frequency Test Equipment: Acts as signal generator in test benches.
• Clock Generator: Provides timing signals to microcontrollers and FPGAs.
• Educational Projects: Used in learning projects related to frequency and waveforms.
• Embedded Systems: Synchronization in multi-chip setups or digital designs.

Equivalent of SI5351 High Frequency Square Wave Signal Generator Module:

• Adafruit SI5351 Breakout: Fully assembled with onboard 3.3V regulator and logic level shifter
• SparkFun Clock Generator Breakout – Si5351A: Includes crystal and pull-ups
• QRP Labs Synth Kit: SI5351-based configurable synthesizer module

Package Includes:

• 1 x SI5351 High Frequency Square Wave Signal Generator Module