HA12226F Datasheet, PDF (6/84 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.
27
(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
MSIN
R = 50 kΩ
V_CC
MS input *¹
9
ALCIN (R)
R = 100 kΩ
34
ALCIN (L)
30
MAI
V = V_CC / 2
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
MS Amp. input *¹
V_CC
MS output voltage level
control pin *¹
Variable impedance for
attenuation
44
ALC (L)
Notes: 1. MS: Music Sensor
2. Non connection regarding the HA12227F.
3. Test pin regarding the HA12227F.
Rev.6.00 Jun 15, 2005 page 6 of 83