HA12226F Datasheet, PDF (3/86 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.)
Pin No. Terminal Name
51
AIN (R)
Note
V=V /2
CC
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 *²
DET (R)
V = 2.7 V
V
100k
V_CC/2
PB B Deck input
REC input
REC equalizer input
V_CC Time constant pin for
Dolby-NR
V
42 *²
49
2 *³
DET (L)
RIP
BIAS1
V = 0.6 V
GND
Ripple filter
Dolby bias current
input
41
BIAS2
V
V = 1.3 V
V
GND
REC equalizer bias
current input
GND
Rev.6, Dec. 2000, page 3 of 86