Texas Instruments DS90UB954-Q1EVM, User Manual, Page: 42 / 67

1
3
2
J1
GND
GND
GND
GND
GND
1
2
J 13
GND
GND
GND 5V_SW
VDD_EXT
VDD3V3
VDD1V8
VDD5V
1
2
3
J6
1
2
3
J 12
EXT_VDD_3V3
EXT_VDD_1V8
1
2
J3
5-146261-1
F1
GND
GND
GND
1
2
J 14
1
2
J 28
5-146261-1
VDD5V
1
2
3
J9
TS W-103-07-G-S
EXT_VDD_3V3
VDD1V1
12V
External Supply
5V @ 2A
Switching Regulator
GND
GND
VDD_EXT
5V_LDO
10.0k
R107
29.4k
R18
0
R17
GND
1
2
3
J 10
5V_LDO
VDD5V
5V_SW
5V @ 1A
Linear Regulator
Select 5V Supply
for VDD5V
GND
3.3V @ 1A Linear Regulator
1.8V @ 1A Linear Regulator
1.1V @ 1.5A Linear Regulator
VDD5V
Power Distribution
LM2941 ON/OFF pin is active low, so ins tall jumper to tie the
ON/OFF pin to ground and enable the device.
GND
GND
VDD_EXT
VPOC_LDO0_9V
0
R26
5.6k
R99
0
R22
9V @ 1A Linear Regulator for PoC RX0
34.0k
R23
GND
GND
VDD_EXT
VPOC_LDO1_9V
9V @ 1A Linear Regulator for PoC RX1
VDD_EXT
GND
GND
VP OC_LDO1_EN
VP OC_LDO1_EN
VP OC_LDO0_EN
VP OC_LDO0_EN
4.7µF
C15 10µF
C16
0.1uF
C17 0.1uF
C18
4.7µF
C19
10µF
C20
0.1uF
C21
0.1uF
C22
10pF
C23
3300pF
C24
1µF
C25
1uF
C26
10uF
C27
1uF
C28
1uF
C30
1uF
C31
22uF
C69
22uF
C94
22uF
C99
1uF
C100
1uF
C101
1uF
C102
1uF
C103
1uF
C104
4.7µF
C105
47uF
C107
100uF
C108
4.7µF
C109
10µF
C110
1uF
C112
0.1uF
C113
10µF
C114
10nF
C115
0.1uF
C116
0.1uF
C117
1uF
C118
1uF
C119
1uF
C120
0.1uF
C121
0.1uF
C122
1µF
C124
0.1uF
C125
22uF
C127
0.1uF
C128
2.2uF
C129
D17
1 2
3 4
5 6
7 8
J8
1 2
3 4
5 6
7 8
J 27
4.7uH
L21
0
R11
0
R12
3.24k
R13
GND
124k
R14
100k
R15
3.24k
R19
10.0k
R20
3.24k
R21
22.1k
R93
10.0k
R102
0
R103
34.0k
R105 0
R106
0
R109
5.6k
R110
10.0k
R111
3.24k
R112
0
R113
0
R122
100k
R123
100k
R124
0
R126
1.87k
R127
4.99k
R128
0
R129
10.0k
R132
100k
R133
1
2 3
4
T1
TP 1
TP 3 TP 4
TP 5 TP 6
TP 7
TP 8
TP 9
TP 10
TP11
TP 13
TP 14
TP 15
VO
1
VFB
2
VREG5
3
S S
4
GND
5
P G
6
EN
7
P GND1
8
P GND2
9
S W1
10
S W2
11
VBS T
12
VIN
13
VCC
14
PAD
15
TPS54225PWPR
U4
GND GND
IN
3
OUT
5
GND
7
ADJ
8
ON/OFF
1
DAP
9
NC
4
NC
6
GND
2
LM2941LD/NOPB
U6
IN
3
OUT
5
GND
7
ADJ
8
ON/OFF
1
DAP
9
NC
4
NC
6
GND
2
LM2941LD/NOPB
U7
IN
3
OUT
5
GND
7
ADJ
8
ON/OFF
1
DAP
9
NC
4
NC
6
GND
2
LM2941LD/NOPB
U8
IN
1
IN
2
P G
3
BIAS
4
EN
5
GND
6
S S
7
FB
8
OUT
9
OUT
10
EP
11
TPS74801TDRCRQ1
U9
VDD_SEL
1GND
3
1EN
4
1IN
5
1IN
6
2GND
9
2EN
10
2IN
11
2IN
12
2OUT
17
2OUT
18
2RES ET
22
1OUT
23
1OUT
24
1RES ET
28
EP
29
TPS767D318PWP
U10A
NC
1
NC
2
NC
7
NC
8
NC
13
NC
14
NC
15
NC
16
NC
19
NC
20
NC
21
NC
25
NC
26
NC
27
TPS767D318PWP
U10B
Figure 15-5. DS90UB954-Q1EVM Power Distribution Circuits - Page 4
DS90UB954-Q1EVM PCB Schematics, Layout and Bill of Materials - DS90UB954-Q1EVM Schematic www.ti.com
42 DS90UB954-Q1EVM Deserializer User's Guide SNLU223C – AUGUST 2017 – REVISED NOVEMBER 2022
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