HA12226F Datasheet, PDF (6/86 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. Terminal Name Note
10
GPCAL
R = 110 kΩ
Equivalent Circuit
R
2.5 V
Pin Description
GP gain calibration
terminal
11
RECCAL
12
ALCCAL
14
MSDET
R = 110 kΩ
R = 140 kΩ
n=6
0 µA
n
REC gain calibration
terminal
ALC operation level
calibration terminal
V_CC
Time constant pin for
MS *¹
13
ALCDET
27
MSIN
n=2
R = 50 kΩ
GND
V_CC
MS input *¹
9
ALCIN (R)
34
ALCIN (L)
30
MAI
R = 100 kΩ
V=V /2
CC
29
MS GND
55
ALC (R)
V=0V
V=0V
V
R
V_CC/2
MAOUT
100 k
V
MAI _{8.2 k}
V_CC/2
V_CC
MS Amp. input *¹
MS output voltage
level control pin *¹
Variable impedance
for attenuation
44
Note:
ALC (L)
1. MS: Music Sensor
2. Non connection regarding the HA12227F.
3. Test pin regarding the HA12227F.
Rev.6, Dec. 2000, page 6 of 86