HA12215 데이터 시트보기 (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.) (cont)

Pin No. Terminal Name Note

3

PBOUT (R)

V = GND

Equivalent Circuit

Pin Description

VCC

PB output

V

40

PBOUT (L)

4

RECOUT (R)

V = GND

39

RECOUT (L)

7

EQOUT (R)

V = GND

36

EQOUT (L)

28

MAOUT

V = GND

8

ROUT (R)

V = GND

35

ROUT (L)

52

ABO (R)

R1 = 15 k

R2 = 12 k

R1 R2

V

VEE

REC output

REC equalizer output

MS Amp. output *1

Input Amp. output

VCC Time constant pin for

PB equalizer (70µ)

47

ABO (L)

6

BOOST (R)

R1 = 4.8 k

R2 = 4.8 k

37

BOOST (L)

31

BIAS (M)

V = V – 0.7V

CC

32

33

Note:

BIAS (C)

BIAS (N)

1. MS: Music Sensor

VEE

Time constant pin for

low boost

VCC

REC bias current

output

V

Rev.5, Oct. 1999, page 4 of 69

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