Schematic Diagram
3-2
Circuit Description
3.1
Schematic Diagram
Figure 3–1 shows the schematic diagram for the EVM. The following
paragraphs describe the EVM circuits.
Figure 3–1. EVM Schematic Diagram
19
21
17
FS
CS
DA
T
A
IN
A0
A1
A2
A3
I/O CLK
EOC
DA
T
A
OUT
CST
AR
T
INV CLK
13
16
2
3
4
1
10
12
6
7 8
9
REF
REF–
11
C12
0.1
µ
F
AV
DD
5
Y1
Y2
Y3
Y4
18
16
14
12
Q
A1
A2
A3
A4
AV
DD
1
2
4
6
8
C4
0.1
µ
F
A2
A3
Y1
Y4
13
15
9
3
Q
Y2
Y3
A1
A4
19
7
5
11
17
RP1B
RP1D
RP1F
RP1G
U1
TL
V1544
R20
20 k
Ω
JP5
U7
SN74HCTIG04
RP2H
U2A
U2B
1/2 SN74HC244
R35
10 k
Ω
DV
DD
RP2G
RP2E
RP1H
RP1C
DV
DD
R12
20 k
Ω
R41
10 k
Ω
DV
DD
TP25
FS
CS
DA
T
A_IN
I/O_CLK
EOC
EOC
DA
T
A_OUT
CST
AR
T
INV_CLK
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
18
20
22
23
24
4
3
9
7
12
11
16
15
20
19
23
27
31
35
39
43
47
2
1
6
5
10
9
14
13
18
17
22
21
26
30
34
24
28
32
36
38
42
46
40
44
48
25
29
33
37
41
45
J6
JP
A
1
2
3
4
5
6
7
8
9
10
11
13
EOC
CST
AR
T
I/O_CLK
EOC
DA
T
A_IN
DA
T
A_OUT
CS
INV_CLK
FS
TP7
DV
DD
TP26
RP1A
RP1E
RP2A
RP2B
RP1C
RP1D
RP1F
UNUSED
C9
0.1
µ
F
C14
0.1
µ
F
C15
0.1
µ
F
10 Vdc
AV
DD
C13
0.01
µ
F
C21
0.1
µ
F
C3
4.7
µ
F
+
C12
0.01
µ
F
C6
0.1
µ
F
C5
4.7
µ
F
+
DV
DD
AV
DD
C1
1
0.1
µ
F
C10
4.7
µ
F
+
R35
357 k
Ω
SW1B
3
4
2
J5
TP13
TP14
FB1
FB2
8
6
5
R23
562 k
Ω
R24
169 k
Ω
R33
20 k
Ω
17
IN
IN
EN
GND
PG
OUT
OUT
FB
TPS7101
U3
C18
0.1
µ
F
C16
4.7
µ
F
+
D9
R21
D10
R22
C17
4.7
µ
F
+
1
2
3
J1
Power In
10 Vdc
C8
1
µ
F
+
TP27
T
o
EXT_REF–
TP1
1
15
14
TP12
C7
1
µ
F
+
JP2
C2
C1
10
µ
F
0.01
µ
F
+
AV
DD
TP28
R2
6.34 k
Ω
R3
10 k
Ω
3 V
5 V
R1
178 k
Ω
AV
DD
SW1A
1/2 SN74HC244
6
5
7
TP16
TP17
TP15
1/2 TL
V2432
U4B
4
2
3
8
AV
DD
R28
10 k
Ω
R27
10 k
Ω
TP19
R25
10 k
Ω
R26
10 k
Ω
AV
DD
1
2
3
1
2
3
JP1
AV
DD
R32
0
JP4
AV
DD
R31
0
JP3
D8
D7
D6
D5
4
2
3
7
R36
10 k
Ω
C20
100 pF
–10 Vdc
6
U4A
1/2 TL
V2432
U5
TLE2027
10 Vdc
AV
DD
D4
D3
R30
0
D2
D1
R29
10 Vdc
–10 Vdc
C19
100 pF
R38
10 k
Ω
JP6
J2
J3
J4
Analog Input 1
Analog Input 2
Analog Input 3
10 Vdc
±
–10 Vdc
+
–
+
–
+
–
TP20
100
Ω
3 V
5 V
D1
1
–10 Vdc
Summary of Contents for TLV1544EVM
Page 2: ...Printed in U S A 08 98 SLAU014...
Page 8: ...vi...
Page 16: ...1 6 Overview...
Page 19: ...PCB Layout 2 3 Physical Description Figure 2 2 PCB Layout...
Page 20: ...PCB Layout 2 4 Physical Description Figure 2 3 PCB Layout...
Page 21: ...PCB Layout 2 5 Physical Description Figure 2 4 PCB Layout...
Page 22: ...PCB Layout 2 6 Physical Description Figure 2 5 PCB Layout...