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HA12181FP

AM Radio Noise Reduction System

Renesas Electronics 

HA12181FP

AM Radio Noise Reduction System

Functions

• Buffer amp. for audio

• Linear approximate circuit for noise reduction

• IF Amp., detector, audio amp. and AGC circuit for noise detection

• Gate pulse generator

REJ03F0130-0200

(Previous: ADE-207-171A)

Rev.2.00

Jun 15, 2005

Features

• High noise cancelling capacity: 46 dB typ.

• Less gain loss: GV = –0.5 dB typ.

• Low total harmonic destortion and high signal-to noise ratio: THD = 0.06% typ., S/N = 75 dB typ.

• Operation supply voltage range: 7.0 V to 10 V (8.2 V typ.)

• Less external parts count

Rev.2.00 Jun 15, 2005 page 1 of 19

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