Description

AD9833 triangle sine wave signal source IC integrated circuit square wave generator module

 

Data Link: https://pan.baidu.com/s/1YrbTPeuYLikDkYSHyCsRYw?pwd=8888 Extraction Code: 8888

Module Features:

1. Operating Voltage: 2.3V-5.5V.

2. Operating Temperature Range: -40°C to +105°C (prefix = o)

3. Onboard 25MHz (50ppm accuracy) active crystal oscillator with 0.1Hz step accuracy.

4. Onboard 300MHz high-speed amplifier with low-pass filtering.

5. Two output signal channels: one for raw signal output (VOUT) and one for 5x amplified signal output (PGA), with 50Ohm output impedance.

6. Very compact size: 32mm x 32mm.

7. Amplitude modulation, frequency modulation, and waveform switching can be digitally controlled by the microcontroller.

Module Schematic: (The microcontroller needs to send frequency and waveform data to the AD9833 and amplitude data to the MCP41010 digital potentiometer. The AD9833 and MCP41010 share the same data and clock ports, but have separate chip selects. This requires only four I/O ports on the microcontroller. The output signal is amplified fivefold by the high-speed AD9850 operational amplifier. The module outputs the original AD9833 signal and the amplified signal separately for ease of use.)

Introduction:

The AD9833 is a programmable waveform generator capable of generating sine, triangle, and square wave signals with frequencies ranging from 0 to 12.5 MHz. This waveform generator is widely used in various measurement, stimulus, and time-domain response applications. Its output frequency and phase are software-programmable and easily adjustable. With a 25 MHz clock speed, the accuracy is 0.1 Hz, and with a 1 MHz clock speed, the accuracy reaches 0.004 Hz. Data can be written via three serial interfaces.

Applications:

Frequency Excitation/Waveform Generation Liquid and air flow measurement.

Sensing applications: Approximation, motion, and defect detection.

Linear loss and linear attenuation.

Test equipment, medical equipment

Scanning, clock generator

Data link: AD9833 module data link: https://pan.baidu.com/s/1WLTsj_oy3teSPA8ikP-HoQ Extraction code: mj6i

Measurement results

Sine wave measurement results: In actual testing, all three waveforms began to distort after 5MHz, with harmonics appearing. After 10MHz, the waveforms became completely distorted, and the amplitude decreased.