HA12181FP
AM Radio Noise Reduction System
REJ03F0130-0200
(Previous: ADE-207-171A)
Rev.2.00
Jun 15, 2005
Functions
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Buffer amp. for audio
Linear approximate circuit for noise reduction
IF Amp., detector, audio amp. and AGC circuit for noise detection
Gate pulse generator
Features
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High noise cancelling capacity: 46 dB typ.
Less gain loss: G
V
= –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