HA12226F Datasheet, PDF (5/84 Pages) Hitachi Semiconductor – Audio Signal Processor for Cassette Deck(Dolby B-type NR with Recording System)

HA12226F/HA12227F
Pin Description, Equivalent Circuit (cont.)
Pin No.
15
(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
ALC ON/OFF
I = 20 µA
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
10
GPCAL
R = 110 kΩ
11
RECCAL
12
ALCCAL
14
MSDET
R = 110 kΩ
R = 140 kΩ
n=6
13
ALCDET
n=2
D GND
GP gain calibration terminal
R
2.5 V
0 µA
n
REC gain calibration terminal
ALC operation level
calibration terminal
V_CC
Time constant pin for MS *¹
GND
Rev.6.00 Jun 15, 2005 page 5 of 83