FM NOISE CANCELLER
S1A2272A01
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.
16−SOP−225A
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.
ORDERING INFORMATION
Device S1A2272A01-S0B0 Package 16-SOP-225A Operating Temperature −20°C − +75°C
BLOCK DIAGRAM
SUB IN(-)
PLT CAN SIGNAL
PW ADJ
NOISE AGC ADJ
NOISE DET ADJ
BYPASS
HPO
HPI
16
15
14
13
12
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