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SCHEMATIC DIAGRAM 5
B
MAIN CIRCUIT
A B D
IC602
TC74HCT7007A
3.3V TO 5V
CONVERTER
Vcc
0.1V
5V
24
23
22
1
2
3
2.5V
2.5V
5V
C203
0.1
C201
6.3V100
A B
L106
10
H
L105
10
H
L103A
10
H
L102A
10
H
L101A
10
H
17
16
15
DAB ANT
(75 )
Z101A(RAL0042)
:POSITIVE VOLTAGE LINE
G
E
H
C205
330P
5V
0V
0V
0V
0V
0V
0V
14
13
12
11
10
9
8
A5
Y5
A4
Y4
A3
Y3
A0
Y0
A1
Y1
A2
Y2
GND
1
2
3
4
5
6
7
0.1V
0.1V
3.3V
5V
3.3V
5V
C208
0.1
IC201
LC72722PMTLM
RDS DECODER
0V
(5V)
5V
5V
21
20
19
18
17
16
15
4
5
6
7
8
9
10
2.5V
2.5V
C204
560P
F=4.332MHz
C
R101
100
TP110
TP304
C106A
C105A
C104A
C103A
C102A
C101A
14
13
12
11
10
9
8
7
6
5
2
1
DAB RF TUNER
:NEGATIVE VOLTAGE LINE
C
R201
0
R606
100
R607
100
R608
100
R614
15K
0V
0V
(3.3V)
(5V)
3.3V
5V
16
15
14
13
NC
Y5
A5
NC
V
Y0
A0
Y1
CC
1
2
3
4
3.3V
3.3V
5V
R609
1K
2V
P P
F=4.332MHz
A
B
5V
2.5V
C
14
13
D
E
11
12
F
2.6V
G
X201
(4.332MHz)
2V
H
P P
I
TP101
3.3V
5V
7.3V
14.8V
14.4V
6.3V100
6.3V100
10V100
16V10
10V100
6.3V100
:DAB SIGNAL LINE
F
I
A
B
C
D
E
F
0V
0V
(3.3V)
(5V)
3.3V
5V
3.3V
5V
12
11
10
9
Y4
A4
Y3
A3
IC603
TC74HC4050EL
5V TO 3.3V
CONVERTER
A1
Y2
A2
GND
5
6
7
8
IC302
M514400D6SJ1
4M DRAM
1.7V
1
DQ0
Vss
20
1.7V
1.4V
2
DQ1
DQ3
19
R
2.8V
1.8V
3
WE
DQ2
18
Q
2.8V
3V
4
RAS
CAS
17
P
2.8V
3.3V
5
A9
OE
16
O
1.4V
1.5V
6
A0
A8
15
N
0.3V
1.5V
7
A1
A7
14
M
0.3V
0.3V
8
A2
A6
13
L
1.4V
1.4V
9
A3
A5
12
K
5V
1.4V
10
Vcc
A4
11
J
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