CJMCU-9833 AD9833BRMZ Programmable Sine/Triangular/Square Waveform Generator Module

The CJMCU-9833 is a compact waveform generator module based on the AD9833BRMZ programmable DDS chip. It can generate precise sine, triangular, and square wave signals with adjustable frequency and amplitude, making it ideal for testing, signal processing, and embedded electronics applications.

This module is suitable for function generator tasks, waveform testing, analog circuit design, and educational electronics projects. Its I2C/SPI interface allows easy control from microcontrollers such as Arduino, Raspberry Pi, and STM32.

KEY FEATURES

• Generates sine, triangular, and square waveforms
• Programmable frequency and amplitude
• Based on AD9833BRMZ DDS chip
• Compact PCB module design
• Digital interface for microcontroller control (I2C/SPI)
• High frequency resolution and stability
• Suitable for testing, signal generation, and embedded applications

SPECIFICATIONS

• Operating Voltage = 3.3-5V DC
• Frequency Range = 0 – 12.5 MHz typical
• Waveform Types = Sine, Triangular, Square
• Interface Type = SPI / I2C
• Frequency Resolution = 28-bit tuning
• Output Impedance = 600 Ω typical
• Output Voltage = 0 – 2.5V peak-to-peak
• Module Size = Approx 40 x 20 mm
• Operating Temperature = -20 to 85°C

INTERFACES

• VCC = Power supply input 3.3-5V DC
• GND = Ground
• FSYNC / SDATA / SCLK = SPI interface pins
• OUT = Analog waveform output
• RESET = Module reset input