Integrated function generator circuit is a central part of the design controlled via spi interface with ability to generate square sine triangle wave with frequency modulation option.
Function generator circuit design.
For example one could generate a sinusoidal signal at 60hz.
It is needed for tuning resonance circuits testing audio and video equipment designing of analog filters and for many other different purposes.
In this project a circuit model is proposed that can simultaneously generate many different mathematical functions.
The different types of waveforms have different frequencies which can be generated by using the instrument as a function generator.
We get ours through a potentiometer.
In addition to producing sine waves.
The one we will build can output square triangle or sine waveforms.
First a function generator also called a tone generator is an electronic device that can output a specific waveform at a set frequency.
This instructable describes the design of function generator based on the maxims s analog integrated circuit max038.
The circuit model is designed and simulated with ngspice and its performance is demonstrated through the simulation of a number of non linear functions.
Since ad9833 has no capability to change output signal amplitude i ve used a digital 8 bit potentiometer as a voltage divider at the device output endpoint will be described in further steps.
The proposed function generator model is based on a polynomial expansion model that uses a 10th order polynomial approximation of any of the required functions.
Function generator is a type of instrument which is used to generate different types of waveforms like sinusoidal triangular rectangular square waveforms.
Integrated circuits used to generate waveforms may also be described as function generator ics.
Like standard function generators the circuit allows for frequency adjustment.
These waveforms can be either repetitive or single shot.
The function generator is very useful tool for the electronics freaks.
Some of the most common waveforms produced by the function generator are the sine wave square wave triangular wave and sawtooth shapes.