HA12203NT Datasheet, PDF (5/97 Pages) Hitachi Semiconductor – Audio Signal Processor for Cassette Deck(Dolby B-type NR with Recording System)

Pin No. Terminal Name Note
12
A/B
I = 50µA
Equivalent Circuit
V
22 k
HA12203NT/HA12204NT
Pin Description
I
Mode control input
100 k
13
A120 / 70
14
NORM / HIGH
15
B NORM / CROM
/ METAL
16
BIAS ON / OFF
17
RM ON / OFF
18
NR ON / OFF
20
LM ON / OFF
19
REC / PB / PASS
GND
2.5 V
+
–
21
MSOUT
I = 0µA
V
100 k
100 k
V
22 k
V_CC
I
Mode control input
MS output
(to MPU)*1)
GND
30
GPCAL
V = GND
110 k
V
31
RECCAL
V = GND
V_EE
GP gain Calibration
terminal
2.5 V
REC gain calibration
terminal
Rev.3, Jun. 1999, page 5 of 97