Figure 15-5. Ds90Ub954-Q1Evm Power Distribution Circuits - Texas Instruments DS90UB954-Q1EVM User Manual

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