Pic 'n' Mix Digital Injection System

摘要

This construction project brings together a number of themes which I have been kicking around for some time. But first, why "PIC 'N' MIX"? PIC - A range of microcontrollers produced by Arizona Microchip Inc. In this application, the PIC 16C84. DDS - Direct Digital Synthesis. The technique of digitally generating the output frequency directly (as opposed to typically mixing the output of a VFO with a crystal oscillator - or employing phase-locked loop techniques). In this application the Analog Devices AD9850 'complete DDS synthesiser' chip is used.