HA12209F Datasheet, PDF (3/49 Pages) Hitachi Semiconductor – Audio Signal Processor for Cassette Deck(Dolby B-type NR with Recording System)

HA12209F
Pin Description, Equivalent Circuit (V_CC=12V, Ta=25°C, No signal, The value in the
table show typical value.)
Pin No. Pin Name
52
AIN (R)
Note
Equivalent Circuit
V=V /2
CC
Pin Description
PB A deck input
48
AIN (L)
54
BIN (R)
45
BIN (L)
56
RIN (R)
44
RIN (L)
6
EQIN (R)
37
EQIN (L)
4
DET (R)
V = 2.6V
V
100k
V_CC/2
V_CC
PB B deck input
REC input
REC equalizer
input
Time constant
pin for Dolby-NR
V
39
DET (L)
49
RIP
V = V_CC / 2
1
BIAS1
V = 0.6V
GND
Ripple filter
Dolby bias
current input
V
42
BIAS2
V = 1.3V
V
GND
REC equalizer
bias current input
GND
Rev.2, Jun. 1999, page 3 of 49