View tda7338 datasheet:

TDA7338 ® STEREO DECODER INTEGRATED 19KHz SC NOTCH FILTER FOR PILOT CANCELLATION ON CHIP FILTER FOR PILOT DETECTOR SO20 AND PLL ADJUSTMENT FREE VOLTAGE CONTROL- LED OSCILLATOR AUTOMATIC PILOT DEPENDENT MONO/ STEREO SWITCHING NOISE BLANKING WITH PROGRAMMABLE DIP20 THRESHOLD HIGH CUT CONTROL AND STEREO BLEND INTEGRATED HIGH PASS FILTER FOR IN- TERFERENCE DETECTOR LEVEL INPUT FOR ADDITIONAL SPIKE DE- TECTION ON FIELDSTRENGHT SIGNAL ORDERING NUMBER: TDA7338(DIP20) VERY HIGH SUPPRESSION OF HARMONIC TDA7338D( SO20) AND INTERFERENCE SIGNALS DESCRIPTION alized on the chip with a Switched Capacitor con- The TDA7338 is a new concept of monolithic inte- cept. grated stereo decoder with noise blanking for FM Avoiding the use of multipliers and non linear cir- car radio a