A simple stereo tv decoder circuit build with MC1310P. Transistor Q1 is an audio amplifier and U1 is used as a 31.5KHz subcarrier which is similar to 38KHz FM MPX. Pilot frequency is 15.734KHz. Stereo ...

Current-mirrors are widely used in the blocks of analog decoder circuits based on the sum-product algorithm. The simple current mirrors, using diode-connected input devices that traditionally have ...