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7. GENERAL INFORMATION
7.1 PARTS
7.1.1 IC
• The information shown in the list is basic information and may not correspond exactly to that shown in the schematic diagrams.
CXA1821M (CD MAIN UNIT : IC1101)
• RF AMP. IC
•
Block Diagram
20
19
V
CC
V
CC
1
•
Pin Function
N
. o
P
n i
N
a
m
e
/ I
O
1
L
D
O
A
P
C
a
2
P
D
I
A
P
C
a
3
A
4
B
I
R
F
a
m
5
C
6
D
−
7
V
E
E
G
o r
u
n
8
F
I
T
a r
k c
n i
9
E
G
a
n i
a
−
1
0
I E
p
n i
. 9
18
17
22k
VC
VREF
1.25V
VC
10k
2
3
4
F
u
n
t c
o i
n
m
p
i f i l
r e
o
u
p t
t u
m
p
i f i l
r e
n i
p
t u
p
i f i l
r e
a
n
d
F
E
a
m
p
i f i l
r e
n i
p
t u
d
p
n i
g
e
r r
r o
a
m
p
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p
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d
u j
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s
g i
n
l a
w
h
c i
h
w
a
s
n i
p
u
16
15
14
164k
87k
VC
25p
VC
13k
V
EE
VC
5
6
7
N
. o
P
n i
N
a
m
e
/ I
O
−
1
1
E
O
1
2
V
C
O
1
3
T
E
O
1
4
F
E
B
A I
S
I
1
5
F
E
O
1
6
R
F
O
O
−
1
7
R
F
E
1
8
L
C
P /
D
I
1
9
L
D
O
N
I
f t
o r
m
−
2
0
V
C
C
13
12
11
VC
123k
30k
30k
VC
8
9
10
F
u
n
t c
o i
n
G
a
n i
a
d
u j
t s
h t
e
s
g i
n
l a
w
h
c i
h
w
p
n i
. 9
D
C
v
l o
a t
g
e
o
u
p t
t u
f o
V (
C
C
+
V
T
a r
k c
n i
g
e
r r
r o
a
m
p
i f i l
r e
o
u
p t
t u
F
E -
s
g i
n
l a
s i
o
u
p t
u
. t
P
n i
f
r o
o f
c
u
s
b
a i
s
a
d
u j
t s
m
e
t n
F
o
c
u
s
e
r r
r o
a
m
p
i f i l
r e
o
u
p t
t u
R
F
a
m
p
i f i l
r e
o
u
p t
t u
P
n i
f
r o
R
F
a
m
p
i f i l
r e
e
q
u
a
z i l
t a
o i
B
a i
s
p
n i
V
C
C
:
L
C
,
O
P
E
N
:
O
/ N
O
F
F
s
w
c t i
h
n i
g
p
n i
f o
A
P
C
V
C
C
:
O
, N
V
E
E
:
O
F
F
P
o
w
r e
s
u
p
p
y l
p
n i
XC-L5
a
s
n i
p
u
f t
o r
m
E
) E
2 /
n
P
D
C I
a
m
p
i f i l
r e
43
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