AD9850 DDS Signal Generator Module 0-55MHz with LCD Display

AD9850 DDS Signal Generator Module with LCD Display This compact signal generator module is built around the AD9850 DDS chip and delivers a frequency range from 0 to 55MHz with continuous adjustment in precise 1Hz increments. The integrated LCD screen provides clear readouts, making it straightforward to monitor and fine-tune your output signal for bench testing, repair work, or hobbyist electronics projects. Power Supply and Voltage Requirements The module includes a 78L05 voltage regulator, and the recommended input is 8-9V DC at 200mA for reliable operation. While a 12V input can be used, it is only suitable for short-term testing as the board will heat up under sustained use. The 14-pin header provides an 8V supply connection from the motherboard, with the GND pin clearly identified for correct wiring. Connection and Setup Wiring is straightforward when following the labelled pin layout. The encoder connects to the 7-pin position in the middle, which links to the digital matrix input, while the 5-pin and 6-pin connections are made as shown in the product photo. Once connected, the module is ready for immediate use with its intuitive adjustment controls. Practical Applications With its wide 0-55MHz range and fine 1Hz stepping, this generator suits a variety of signal generation tasks, including oscillator testing, filter alignment, and general laboratory or workshop use. The digital control makes frequency selection precise and repeatable, saving time when you need a specific output quickly.