【Guangxi Normal University Competition】Arbitrary Waveform Generator

D Arbitrary waveform generator

1. Task

Design and manufacture an arbitrary waveform generator that can generate sine wave, square wave and triangle wave.

The waveform generator can ensure constant voltage output within a certain range.

2. Requirements

1. Basic requirements

(1) The waveform generator can generate three periodic signals: sine wave, square wave and triangle wave;

(2) The frequency range of the output waveform is 100Hz~100kHz; the frequency is adjustable, and the frequency step interval is ≤

100Hz;

(3) Under 50Ω load conditions, the maximum peak-to-peak value of the output voltage is ≥2V;

(4) The function of displaying the type, repetition frequency (period) and amplitude of the output waveform;

(5) There is no obvious distortion when observed with an oscilloscope.

2. Development part

(1) The frequency range of the sine signal is extended to 1Hz~10MHz, and the

output .

(2) It has the function of setting the output frequency and frequency step;

(3) Under the condition of 50Ω load, the maximum peak-to-peak value of the output voltage is ≥5V;

(4) It has the function of displaying the waveform type, frequency and amplitude;

(5) It can output at least one arbitrary waveform.

III. Description

1. The frequency adjustment method of the basic part can be analog or digital, and the frequency adjustment of the development part

can only be digital.

2. The output frequency and frequency step of the development part need to be set using the keyboard.

3. The type of arbitrary waveform can be selected and the frequency can be changed.


***Third Prize at the School Level***

***Team members: Dai Kang, Huang Ji, Liu Xinbo Instructor: Wang Xun***