HA12227F データシートの表示（PDF） - Hitachi -> Renesas Electronics

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HA12227F

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

Hitachi -> Renesas Electronics 

HA12226F/HA12227F

Pin Description, Equivalent Circuit (VCC = 12 V, A system of single supply voltage,

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

Pin No. Terminal Name Note

3

PBOUT (R)

V=V /2

CC

Equivalent Circuit

Pin Description

VCC

PB output

V

40

PBOUT (L)

4

RECOUT (R)

39

RECOUT (L)

7

EQOUT (R)

36

EQOUT (L)

28

MAOUT

8

ROUT (R)

35

ROUT (L)

52

ABO (R)

R1 = 15 k

R2 = 12 k

V = VCC / 2

R1 R2

V

GND

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

V = VCC / 2

37

BOOST (L)

32

BIAS (C)

V = VCC − 0.7 V

33

BIAS (N)

GND

Time constant pin for

low boost

VCC

REC bias current

output

V

Rev.6, Dec. 2000, page 4 of 86

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