1. DDS Signal Generator Module Development Board: This module provides the capability to output 2 sine waves and 2 square waves, offering a frequency range of 0–40 MHz for sine waves (AD9850) and 0–1 MHz for square waves. Note that harmonics increase, and the waveform may become distorted above 20-30 MHz. The signal-to-noise ratio is enhanced by using a 70 MHz low-pass filter, ensuring cleaner signal output. 2. Amplitude Adjustment and Variable Duty Cycle: The module features a pin that generates the DA reference, allowing for straightforward adjustment of the output waveform amplitude. The duty cycle for the square wave can be easily modified using a variable resistor, providing flexibility in signal generation. 3. Oscillator and Flexible Input: The AD9850 module is equipped with a 125 MHz active oscillator, while the AD9851 module utilizes a 30 MHz active oscillator. This design supports both parallel and serial data input, making it versatile for various applications. 4. Compact Design: With dimensions of 5 cm x 2.6 cm, this module is designed to be compact and space-efficient, making it suitable for integration into a variety of projects without occupying excessive space. Applications: - Ideal for signal processing applications, including testing and debugging circuits. - Useful in educational settings for demonstrating waveform generation and modulation techniques. - Perfect for hobbyists and engineers developing RF and communication systems requiring precise waveform outputs.