HA12209F Datasheet, PDF (7/49 Pages) Hitachi Semiconductor – Audio Signal Processor for Cassette Deck(Dolby B-type NR with Recording System)

Block Diagram
HA12209F
NC
RIN (L)
BIN (L)
ABO (L)
NC
AIN (L)
RIP
AIN (R)
ABO (R)
BIN (R)
NC
RIN (R)
+
+
++
+
42 41 40 39 38 37 36 35 34 33 32 31 30 29
43
44
45
15k
46
12k
47
48
49
50
51
52
15k ^12k
53
54
55
56
DOLBY
B-NR
DOLBY
B-NR
EQ
28
100k
MS DET
27
26
BIAS
SW
25
45k
24
23
22
+
LPF
21
20
19
18
17
16
EQ
15
1 2 3 4 5 6 7 8 9 10 11 12 13 14
++
+
NC
MSOUT
BIAS (N)
BIAS (C)
NC
BIASOUT
V_CC
LM ON/
REC/
NR ON/
NC
RM /OFF
BIAS ON/
NC
Rev.2, Jun. 1999, page 7 of 49