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HA12181FP

Hitachi Semiconductor
Part Number HA12181FP
Manufacturer Hitachi Semiconductor
Description AM Radio Noise Reduction
Published Mar 22, 2005
Detailed Description HA12181FP AM Radio Noise Reduction System ADE-207-171A (Z) 2nd. Edition June 1997 Functions • Buffer amp. for audio • L...
Datasheet PDF File HA12181FP PDF File

HA12181FP
HA12181FP

Overview
HA12181FP AM Radio Noise Reduction System ADE-207-171A (Z) 2nd.
Edition June 1997 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 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 HA12181FP Block Diagram R500 100 k IF AGC + C502 0.
01µ 3.
3µ Det.
1 14 C503 C504 0.
22µ R502 22 k 12 15 R505 47 k AF AGC Rev.
2, Jun.
1997, page 2 of 21 IF AGC O...


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