HA12227F datasheet(3/86 Pages) HITACHI

Part #	HA12227F

Description	Audio Signal Processor for Cassette Deck(Dolby B-type NR with Recording System)

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Manufacturer	HITACHI [Hitachi Semiconductor]

Direct Link	http://www.renesas.com/eng

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3 / 86 page

HA12226F/HA12227F

Rev.6, Dec. 2000, page 3 of 86

Pin Description, Equivalent Circuit (V

CC = 12 V, A system of single supply voltage,

Ta = 25

°C, No Signal, The value in the show typical value.)

Pin No.

Terminal Name

Note

Equivalent Circuit

Pin Description

51

AIN (R)

V = V

CC / 2

VCC/2

V

100k

PB A Deck input

48

AIN (L)

53

BIN (R)

PB B Deck input

46

BIN (L)

56

RIN (R)

REC input

43

RIN (L)

5

EQIN (R)

REC equalizer input

38

EQIN (L)

1 *

2

DET (R)

V = 2.7 V

VCC

GND

V

Time constant pin for

Dolby-NR

42 *

2

DET (L)

49

RIP

Ripple filter

2 *

3

BIAS1

V = 0.6 V

GND

V

Dolby bias current

input

41

BIAS2

V = 1.3 V

GND

V

REC equalizer bias

current input

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Manufacturer	Part #	Datasheet	Description
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HA12227F Datasheet(PDF) 3 Page - Hitachi Semiconductor

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