HA12226F Datasheet, PDF (7/86 Pages) Hitachi Semiconductor – Audio Signal Processor for Cassette Deck(Dolby B-type NR with Recording System)

Block Diagram
HA12226F
HA12226F/HA12227F
RIN (L)
ALC (L)
NC
BIN (L)
ABO (L)
AIN (L)
RIP
GND
AIN (R)
ABO (R)
BIN (R)
NC
ALC (R)
RIN (R)
42 41 40 39 38 37 36 35 34 33 32 31 30 29
43
EQ
BIAS
28
44
Dolby
45
B-NR
27
MS
26
46
25
47
24
48
23
49
−
22
+ LPF
+
50
21
51
20
52
19
53
ALC
18
54
Dolby
17
B-NR
55
16
56
EQ
15
1 2 3 4 5 6 7 8 9 10 11 12 13 14
MAOUT
MSIN
MSOUT
LM ON / OFF
REC / PB / PASS
NR ON / OFF
RM ON / OFF
V_CC
BIAS ON / OFF
B NORM / CROM
NORM / HIGH
A 120 / 70
PB A / B
ALC ON / OFF
Rev.6, Dec. 2000, page 7 of 86