Stereo MPX | FM Transmitter Circuit

Stereo Encoder Using PIC18F1220

Here's a high quality stereo encoder using PIC18F1220 microcontroller. The sampling frequency used in this stereo encoder is 97 times higher than the pilot tone frequency. This makes very easy to reject all spectral residues around the sampling frequency without affecting the main signal characteristics.Using of a microcontroller allows to build this stereo encoder with reduced part count and get excellent results in real operation. Here's a... [ more ]