INTRODUCTION
The S1A2272A01 is a monolithic integrated circuit for the FM noise canceller used in car stereos.
It is used in combination with a PLL FM multiplex demodulator with a pilot signal canceller.

FEATURES
• Operation voltage range: VCC = 8V - 15V
• Low quiescent circuit current
• Low distortion: THD = 0.02% at VI = 300mV
• Pilot signal compensation
• Built-in monostable multivibrator.
• Variable input type noise AGC system.