CJMCU-9833 Signal Generator Module – AD9833BRMZ Based (DDS Function Generator)

The CJMCU-9833 is a compact and versatile signal generator module based on the Analog Devices AD9833BRMZ programmable waveform generator chip. It uses Direct Digital Synthesis (DDS) technology to generate precise sine, square, and triangle waveforms across a wide frequency range, making it ideal for signal generation, waveform testing, and function generator applications in electronics and embedded systems.

Features

• Based on the AD9833BRMZ DDS waveform generator chip
• Output Waveforms: Sine, Square, Triangle
• Frequency Range: Up to 12.5 MHz (sine and triangle); square wave supports even higher frequencies
• SPI Interface for control and configuration (ideal for use with Arduino, STM32, ESP32, etc.)
• Onboard 25MHz crystal oscillator for stable frequency output
• Power Supply: 3.3V–5V compatible (ideal for both 3.3V and 5V logic systems)
• Compact CJMCU form factor for easy breadboarding and prototyping

Applications

• Function generators
• Signal and frequency testing
• Audio and waveform synthesis
• Embedded system development
• Laboratory instrumentation and test benches