Improved waveform quality: a 70 MHz lowpass filter provides a better signaltonoise ratio for generated waveforms. Amplitude adjustment via an accessible reference pin: a pin supplies the D/A reference, enabling convenient amplitude tuning to suit different applications. Flexible square wave duty cycle: adjust the variable resistor to change the comparator reference input voltage and set different squarewave duty cycles. Stable and accurate oscillators: the AD9850 module uses a 125 MHz active oscillator, while the AD9851 module uses a 30 MHz active oscillator, ensuring stable frequency generation. Key specifications and features: AD9850 frequency range: 040 MHz Outputs: 2 sine waves and 2 square waves Harmonic distortion may increase above 2030 MHz Square wave frequency: 01 MHz Data input: selectable between parallel and serial input Amplitude adjustment via an accessible reference pin Duty cycle adjustable via the variable resistor Oscillators: stable 125 MHz (AD9850) and 30 MHz (AD9851) Dimensions: 4.5 cm x 2.6 cm Use scenarios: Benchtop signal generation for electronics prototyping and testing RF circuit testing and calibration up to 40 MHz with both sine and square outputs ADC/DAC characterization and waveform verification requiring adjustable amplitude and duty cycle