HA12215 Просмотр технического описания (PDF) - Hitachi -> Renesas Electronics

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HA12215

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

Hitachi -> Renesas Electronics 

HA12215F

Pin Description, Equivalent Circuit (VCC = ±7 V, A system of split supply voltage,

Ta = 25°C, No Signal, The value in the show typical value.)

Pin No. Terminal Name Note

51

AIN (R)

V = GND

Equivalent Circuit

Pin Description

PB A Deck input

48

AIN (L)

53

BIN (R)

46

BIN (L)

56

RIN (R)

43

RIN (L)

5

EQIN (R)

38

EQIN (L)

1

DET (R)

V

100k

V = GND

V = GND

V = GND

V = V +2.7V

EE

GND

PB B Deck input

REC input

REC equalizer input

VCC Time constant pin for

Dolby-NR

V

42

DET (L)

2

BIAS1

V = VEE+0.6V

VEE

Dolby bias current

input

41

BIAS2

V

V = V +1.3V

EE

V

VEE

REC equalizer bias

current input

VEE

Rev.5, Oct. 1999, page 3 of 69

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