Improved waveform SNR: 70 MHz lowpass filter enhances the quality of the waveform for cleaner output. Amplitude adjustment with accessible pin: an easytoaccess pin that generates the D/A reference enables convenient adjustment of the output waveform amplitude to suit specific applications. Flexible square wave duty cycle: the variable resistor allows adjustment of the comparator reference input voltage, enabling different duty cycles for the square wave output. Stable and accurate oscillator: the AD9850 module uses a 125 MHz active oscillator, while the AD9851 module uses a 30 MHz active oscillator, ensuring stable and accurate frequency generation. Specifications: Frequency range for AD9850: 0 MHz. Output: 2 sine waves and 2 square waves. Harmonic distortion may increase above 2030 MHz. Square wave frequency: 01 MHz. Improved waveform SNR with a 70 MHz lowpass filter. Allows selection between parallel and serial data input. Accessible pin for easy amplitude adjustment. Duty cycle of square wave can be adjusted via the variable resistor. Modules feature stable 125 MHz and 30 MHz active oscillators respectively. Dimension: 4.5 cm x 2.6 cm. Use scenarios: Laboratory signal generation: generate precise sine and square waves for test benches, RF experiments, or educational demonstrations, with adjustable amplitude and duty cycle to match DUT requirements. Microcontroller and DSP projects: integrate the module as a flexible waveform source for PWM simulations, data transmission timing tests, or system calibration, benefiting from parallel/serial data input options and stable oscillators. Prototyping and calibration: use the two sine and two square outputs to compare waveform integrity across frequency ranges, verify harmonic behavior, and tune systems with the 70 MHz lowpass filtered output for cleaner signals.