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 PIC Audio Frequency Generator



  PIC 18F4550 Audio Frequency Generator


A Project by:



AUDIO GENERATOR main features :


 Smart and very cheap hardware implementation

 Free firmware and software for the Ham Radio Community

 Generate standard sine, sawtooth and square wave from 10Hz to 50KHz

 Generate two tones for cat-eye SSB test

 Generate AFSK tones (2125/2295 Hz)

 Generate white and pink noise

 Generate arbitrary waveform

 Special PC program allows to design custom waveforms and upload the generator memory

PIC18F4550 based Audio Generator project implements a Digital Direct Synthesizer (DDS), a type of frequency synthesizer used for creating arbitrary waveforms from a single, fixed-frequency reference clock.

In its simplest form this particular circuit configuration can be implemented from a precision clock reference, an address counter, a programmable memory, and a D/A converter


Completed PIC18F4550 Audio Frequency Generator:

Click image to enlarge

PCB Top View:

Click image to enlarge
 FD-AFG-0113 Doc & Schematic:

Technical Info Doc
Schematic & Parts List
Schematic Part 1 JPG
Schematic Part 2 JPG


 Data Sheets & Firmware Download


PIC18F4550 Firmware V1.04 by Tony / I2TZK
Audio Generator PC Software V1.04 by Tony / I2TZK



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For online payments, shipping charges will be added on secure web page, which are from $5.00 upwards for Registered Air Mail, and based on value/weight of the KIT/Assembled.

For Money Order, please refer to table provided on MO web page.

"Buy from 2CO", you may pay using your CC or funds from Paypal.


Terms of sales       Countries where we do not sell/forward     Track your order guide
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Audio Frequency Generator Complete kit with free metal case Coming Soon

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