Texas Instruments AFE4400, User Manual, Page: 48 / 59

VCC_BAT
10uF
C28
TP21
GND
1
VIN
2
CP2
3
CP1
4
EN
5
SS
6
FB
7
OUT
8
SW
9
VO
10
EPAD
11
U9
TPS61093DSK 0R R73
0.1uF
C31
1 2
L4
LPS3010-103MLB
200k
R75
1uF
C35
15.4k
R74
261k
R72
10uF
C63
TP38
10uF
C32
0.01uF
C27
10uF
C29
LED_DRV_SUP
TX_CTRL_SUP
10uF
C61
OUT
1
FB
2
NC
3
GND
4
EN
5
NR/SS
6
DNC
7
IN
8
EPAD
9
U13
TPS7A4901DGN
0.01uF
C58 47k
R103
75k
R63
0.01uF
C55
10uF
C54
TP28
RX_DIG_SUP
RX_ANA_SUP
10uF
C64
OUT
1
FB
2
NC
3
GND
4
EN
5
NR/SS
6
DNC
7
IN
8
EPAD
9
U14
TPS7A4901DGN
0.01uF
C62 47k
R115
75k
R106
0.01uF
C59
10uF
C56
TP37
MSP_AVCC
RX_SUP
TP34
10uF
C47
10uF
C48
10uF
C52
0R
Jumper
R66
0R
Jumper
R71
0R
Jumper
R76
0R
Jumper
R65
0R
Jumper
R67
0R
Jumper
R69
0R
Jumper
R55
0R
Jumper
R54
3v
5v
3v
3v
5v
Blue
LED3
VDD_BAT
VBT_IN SW_LP
REG_FB
REG_SS
REG_VO
AFE_VTX
MSP_VSUP
AFE_5VTX
AFE_VRX
IN
4
ADJ
6
GND
3
NC
7
SD
8
DAP
9
OUT
5
BYP
1
NC
2
U8
LP3878MR-ADJ/NOPB
0R
R68
4.7k
R81 1.0k
R79
4.02K
R77
1000pF
C36
0R
Jumper
DNI
R58
MSP_DVCC
1 2
L1
LPS3010-103MLB
1 2
L2
LPS3010-103MLB
1 2
L3
LPS3010-103MLB
MSP_DVCC
1 2
L6
LPS3010-103MLB
1 2
L5
LPS3010-103MLB
10uF
C60
10uF
C65
0R
Jumper
R60 VRX_SUP
VDD_BAT
* RES/Jumpers are 0 OHM 0603 resistors with 2 10 mil holes on
50 mils centers.
* S4924R inductoors are replaced with 744043471
* Test Points to change to 10mil vias with minimum annular rings
PCB Layouts and Schematics
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Figure 53. AFE44x0SPO2EVM: Power Supply (3 of 5)
48 AFE4400 and AFE4490 Development Guide SLAU480A – January 2013 – Revised February 2013
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