HA12226F Datasheet, PDF (5/86 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.
21
50
31, 45, 54
15
Terminal Name
V
CC
GND
NC
ALC ON/OFF
Note
V=V
CC
V=0V
No connection
I = 20 µA
Equivalent Circuit
Pin Description
Power supply
GND pin
No connection
Mode control input
V
I
22 k
16
17
18
19
20
22
23 *²
25
24
PB A/B
A 120/70
NORM/HIGH
B NORM/CROM
BIAS ON/OFF
RM ON/OFF
NR ON/OFF
LM ON/OFF
REC/PB/PASS
100 k
GND
2.5 V
100 k
+
−
100 k
Mode control input
26
MSOUT
I = 0 µA
22 k
V
V
V_CC
I
MS output (to MPU) *¹
D GND
Rev.6, Dec. 2000, page 5 of 86