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BA7207AK 데이터 시트보기 (PDF) - ROHM Semiconductor
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BA7207AK
SECAM chroma signal processor for VHS VCRs
ROHM Semiconductor
BA7207AK Datasheet PDF : 17 Pages
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Block diagram
BA7207AS
(
SDIP32
)
BA7207AS / BA7207AK
32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17
VREG
PAL SCM
LIM
MODE
CONTOROL
×
2
2.2MHz
BPF
×
2
P
4.3MHz
BPF
—
A
RP
BELL
R
R
P
FREQUENCY
ADJUSTER
LIM
4.3MHz
BPF - B
PB
P
SYNC GATE
R
P
P
EQ
1.1MHz
BPF
R
R
÷
4
REC
SYNC GATE
DET VCO
SYNC GATE TIMING
GENERATOR
SCM
PAL
12
34
5
6
7
8
9 10 11 12 13 14 15 16
BA7207AK
(
SQFP44
)
TRAP
34
PALRIN 35
VREG 36
33
32
31
30
PAL SCM
VREG
29
28
27
26
25
24
23
V
CC
22
CREF3
LIM
MODE
CONTROL
21 RECH
20 PBIN
N.C. 37
×
4O 38
N.C.
39
RECIN
40
N.C. 41
×
2
P
2.2MHz
BPF
×
2
LIM
P
4.3MHz
BPF—A
R
R
R
BELL
P
4.3MHz
BPF—B
PR
EQ
PB
SYNC GATE
1.1MHz
BPF
÷
4
REC
SYNC GATE
R
P
FREQUENCY
ADJUSTER
DET
VCO
P
R
SYNC GATE
TIMING
GENERATOR
MUL 42
FADJ1 43
SCM PAL
19 N.C.
18 BWL
17
N.C.
16
SYNCIN
15 N.C.
14 DIV
13 PALPIN
FADJ2 44
12 SGC
1
2
3
4
5
6
7
8
9
10
11
2
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