NTE789 Integrated Circuit Stereo Multiplex Decoder
Description: The NTE789, a monolithic silicon integrated circuit, is a stereo multiplex decoder intended for FM multiplex systems.
This stereo multiplex decoder requires only one low–inductance tuning coil (requires only one adjustment for complete alignment), provides automatic stereo switching, energizes a stereo indicator lamp, and operates from a wide range of
voltage supplies.
Figure 1 shows the block diagram for the NTE789.
The input signal form the detector is amplified by a low–distortion preamplifier and simultaneously applied to both signal, generated by a local
voltage–controlled oscillator (VCO), is counted down by two frequency ...