HA12226F Datasheet, PDF (4/86 Pages) Hitachi Semiconductor – Audio Signal Processor for Cassette Deck(Dolby B-type NR with Recording System)

HA12226F/HA12227F
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.) (cont)
Pin No. Terminal Name Note
3
PBOUT (R)
V=V /2
CC
Equivalent Circuit
Pin Description
V_CC
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 = V_CC / 2
R1 R2
V
GND
REC output
REC equalizer output
MS Amp. output *¹
Input Amp. output
V_CC ^{Time constant pin for}
PB equalizer (70µ)
47
ABO (L)
6
BOOST (R)
R1 = 4.8 k
R2 = 4.8 k
V = V_CC / 2
37
BOOST (L)
32
BIAS (C)
V = V_CC − 0.7 V
33
BIAS (N)
GND
Time constant pin for
low boost
V_CC
REC bias current
output
V
Rev.6, Dec. 2000, page 4 of 86