Texas Instruments THS1030/31EVM, User Manual

Page: 27 / 39

Schematic Diagram
3-5
Circuit Description
Figure 3–4. EVM Schematic Diagram – THS1031
0.1
µ
F
AV
D
D
C
24 0.1u
F
TP
14
MODE
L
C
IO0 IO1 IO2 IO3 IO4 IO5 IO6 IO7 IO8 IO9
IO[9:0]
DR
VDD
AGND
1 2 3 4 5 6 7 8 9
10 11 12 13 14
ROVR
U2
AGND DR
VDD
I/O0 I/O1 I/O2 I/O3 I/O4 I/O5 I/O6 I/O7 I/O8 I/O9 OVR DGND
A
VDD AIN
VREF
REFBS REFBF MODE REFTF REFTS
CLAMPIN
CLAMP
REFSENSE
WR OEB CLK
28 27 26 25 24 23 22 21 20 19 18 17 16 15
THS1031
AIN VREF REFBS REFBF MODE REFTF REFTS CLAMPIN CLAMP REFSENSE WR OEB DUT_CLK
DR
VDD
A
VDD
0.1
µ
F
0.1
µ
F
C16
10
µ
F
10
µ
F
0.1
µ
F
C18
C17
C19
AGND
TP7
CLAMP
J5
AGND
R59 51R
AGND
TP8
H5
AGND
VREF CLAMPIN
LNK15
LNK1
EXT_T
VREF
LNK2 LNK4
A
VDD
LNK3
R1 UNPOP R2 UNPOP
AGND
AGND
10
µ
F
C15
REFTS
LNK5
REFSENSE
Populate With or
For THS1030
CLAMPIN
CLAMP
R72
UNPOP
AGND
R73
UNPOP
THS1030 OEB Option
H8 H9
AGND
LOEB OEB
R76 10 k
DR
VDD
THS1030 STBY
Option
H1
1
H10
AGND
DR
VDD
R75 10 k
LW
R
WR
AGND
A
VDD
LNK8 LNK7 LNK6
R3 10 k R4 10 k
AGND
J2
ADC_CLK
AGND
AGND
AGND
C26
A
VDD_CLK
AGND
7
8
14
OSC
U3
A
VDD_CLK
H2
R7 51R
R8 5k1
P1
2 k
R9 5k1
A
VDD_CLK
LNK12
A
VDD
0.1
µ
F
C26
AGND
0.1
µ
F
C21
0.1
µ
F
C20
0.1
µ
F
C23
10
µ
F
C22
REFBF
REFTF
LNK1
1
LNK10
AGND
R
EXT_T
LNK16
TP10
C13
UNPOP
C14
UNPOP
LNK9
C1
1
UNPOP
C12
UNPOP
TP9
AGND
REFBS
REFTS
H4
H3
H1
EXT_B
AIN
COM
REFBS
H7
R12
100R
4 5 6
PRI
CT
CT
3 2 1
T1
SEC
PRI
SEC
TT1-6-X65
AGND
LNK14
LNK13
TP1
1
H6
AGND
R10 51R
AGND
J3
C28 C29
47
µ
F
R1
1
100R
DC_IN
TP1
TP12
R6 39R
CLK
A
VDD_CLK
1 2 3 4 5 6 7
14 13 12 11 10 9 8
IN 1 OUT
1
IN 2 OUT
2
IN 3 OUT
3
GND
VCC IN 6
OUT
6
IN 5
OUT
5
IN 4
OUT
4
U4
AGND
AGND
74AHC14
R5
39R
DUT_CLK
A
VDD_CLK
0.1
µ
F
C25
AGND