PLL FM Stereo Demodulator For FM Car Radios

The LA3370 is a multiplex IC for FM car stereo, and it has the following 2 functions through its utilization of the IF meter output voltage, etc. 1. Stereo noise control (SNC) under which the noise particular to the FM stereo unit in the weak electric field is reduced smoothly. 2. High-cut control (HCC) under which the high frequency is smoothly attenuated. In additioin, the LA3370 CAN be, due to its low distortion factor, an IC for multiplex stereo Demodulator which is appropriate for the car component stereo unit. By Sanyo Semiconductor Corporation