HA12215 Hitachi Semiconductor, HA12215 Datasheet - Page 5

• Manufacturer Part Number: HA12215
• Description: Audio Signal Processor for Cassette Deck(Dolby B-type NR with Recording System)
• Manufacturer: Hitachi Semiconductor

Pin Description, Equivalent Circuit (V
Ta = 25°C, No Signal, The value in the show typical value.) (cont)
Pin No.
21
49
50
45, 54
15
16
17
18
19
20
22
23
25
24
26
Note:
1. MS: Music Sensor
Terminal Name
V
GND
V
NC
ALC ON/OFF
PB A/B
A 120/70
NORM/HIGH
B NORM/CROM/
METAL
BIAS ON/OFF
RM ON/OFF
NR ON/OFF
LM ON/OFF
REC/PB/PASS
MSOUT
CC
EE
Note
V = V
V = 0V
V = V
No connection
I = 50 A
I = 0 A
CC
EE
Equivalent Circuit
CC
V
= ±7 V, A system of split supply voltage,
V
V
100 k
2.5 V
100 k
22 k
22 k
V
GND
CC
I
+
100 k
I
MSGND
V
EE
Rev.5, Oct. 1999, page 5 of 69
Pin Description
Power supply
GND pin
Negative power
supply
No connection
Mode control input
Mode control input
MS output (to MPU) *
HA12215F
1