HA12226F Datasheet, PDF (3/84 Pages) Hitachi Semiconductor – Audio Signal Processor for Cassette Deck(Dolby B-type NR with Recording System)

HA12226F/HA12227F
Pin Description, Equivalent Circuit
Pin No.
51
(V_CC = 12 V, A system of single supply voltage, Ta = 25°C, No Signal, The value in the show typical value.)
Terminal Name
Note
Equivalent Circuit
Pin Description
AIN (R)
V = V_CC / 2
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.6.00 Jun 15, 2005 page 3 of 83