OPTION
+15V
+5VA
ADS-943
SG5
SG6
C18
R2
0.1µF
(Optional)
11
U4
+5VF
(Optional)
C19
0.1µF
(Optional)
+5VF
C17
0.1µF
+
1
3
U5
20
74HCT86
74HCT573
2.2µF
2
C21
SG9
14
-5VA
X1
+
P4
P3
C23
+5VF
3MHz
CRYSTAL
0.1µF
C24
+
5
(Optional)
4
–
START
CONV.
10
CLC402
HI2541
ANA.
IN
6
+
ANA. IN
SG7
+5VF
-15V
C26
C25
7
3.2k
HCT7474
15pF
0.1µF
2.2µF
C27
7
8
SG8
L1
+
20µH
C8
0.01µF
2.2µF
14
4
JPR1
PR
5
2
D
U6
Q
6
3
1 2 3
CK
Q
1
R3
CLR
C1
2.2µF
L2
20µH
C9
–5V
–5V
ANA. IN
+5VA
U1
OFFSET
ADJUST
+15V
R1
C10
0.01µF
-15V
2
20k
C22
+
2.2µF
C16
0.1µF
0.01µF
+5V
START CONVERT
SG4
C2
+
2.2µF
L3
2
3
4
5
6
7
8
9
11
Q1
1D
2D
Q2
Q3
3D
4D
Q4
5D
U3
Q5
6D
Q6
Q7
7D
Q8
8D
OE
CE
10
19
18
17
16
15
14
13
12
1
20µH
+
C3
+5VF
2.2µF
L4
C20
C11
–5VA
0.1µF
0.01µF
ADS-943
+
+
+
+
6
+5V
C12
–15V
0.01µF
+15V
SPARE GATES
C13
+5VF
0.01µF
+5VA
U6
12
13
7 GND
74HCT86
4
5
U5
6
U5
11
Q
9
8
C14
0.01µF
HCT7474
14
0.1µF
+5VF
C15
9
U5
10
8
10
12
11
13
PR
D
CK
CLR
20
20µH
C4
2.2µF
24
23
22
21
20
19
18
17
16
15
14
13
AGND
BIT1 1
OFFSET BIT2 2
+5VA
BIT3 3
AIN
BIT4 4
-5V
BIT5 5
AGND
BIT6 6
TRIG
BIT7 7
EOC
BIT8 8
BIT14
BIT9 9
BIT13
BIT10 10
DGND
BIT11 11
+5VD
BIT12 12
B14
B13
B12
B11
B10
B9
B8
B7
B6
B5
B4
B3
B2
B1
TRIG
JPR2
1
2 3
CE
34
32
30
28
26
24
22
20
18
16
14
12
10
8
6
4
2
P1
33
31
29
27
25
23
21
19
17
15
13
11
9
7
5
3
1
L5
20µH
C5
2
3
4
5
6
7
8
9
11
2.2µF
Q1
1D
2D
Q2
Q3
3D
4D
Q4
U2
Q5
5D
6D
Q6
Q7
7D
Q8
8D
OE
CE
10
19
18
17
16
15
14
13
12
1
74HCT573
26
24
22
20
18
16
14
12
10
8
6
4
2
25
23
21
19
17
15
13
11
9
7
5
3
1
L6
P2
20µH
C6
74HCT86
SG1
2.2µF
L7
SG2
20µH
C7
NOTES:
1. UNLESS OTHERWISE SPECIFIED ALL CAPACITORS ARE 50V.
C1 - C7 ARE 20V.
ALL RESISTORS ARE IN OHMS.
SG3
2.2µF
SG10
®
2. CLOSE SG1-SG3, SG9, SG10.
3. SEE DATEL DWG A-24546 FOR ADDITIONAL INFORMATION
ON ADS-B946 EVALUATION BOARD.
Figure 5. ADS-943 Evaluation Board Schematic
®
MURATA-PS [ MURATA POWER SOLUTIONS INC. ]
