IN_N
IN_P
DET_N
DET_P
VCM_SHIELD
VBG
TX_N
TX_P
TX_LED_N
TX_LED_P
AFE_PDNZ
AFE_PDNZ
AFE_RESETZ
ADC_RDY
STE
SIMO
SOMI
SCLK
DIAG_END
XIN_MSP
LED_DRV_SUP
RX_DIG_SUP
RX_DIG_SUP
TX_CTRL_SUP
RX_ANA_SUP
VCM_AFE
2.2uF
C41
2.2uF
C42
LED_DRV_SUP
RX_ANA_SUP
NellCor DS-100A PulseOx Connectors
VCM Shield runs to the
DB9 connector and back
DB9-F
AFE4403
TX_3
TX_REF
TX_3
XIN
XOUT
TX_LED_3
CLKOUT
LED_DRV_SUP
LED_DRV_OUT
Place one accessible
25 mil via at theend
of this lead
Place these two resistors parallel
to each other and in the same
layer as the crystal oscillator.
Place 25 mil vias near both pads of each
resistor that connects the control lines of
the MSP430. R15, R25, R26, R29, R31
R33, R35, R38, AND R42.
1
2
3
4
5
6
7
8
9
11
10
J2
K202XHT- E9S-N
1
3
2
D1
BAV99W-7-F
1
3
2
D2
BAV99W-7-F
1
3
2
D7
BAV99W-7-F
1
3
2
D3
BAV99W-7-F
1
3
2
D4
BAV99W-7-F
0
R124
DNI
TP25
1
4
2
3
L1
1K
R28
0.01uF
C12
0
R119
Jumper
0
R123
Jumper
0
R122
Jumper
0
R120
Jumper
Jumper
0
R121
Jumper
Jumper
0
R16
0
R17
1
3
2
Y1
CSTCE8M00G55-R0
0.1uF
C10
0.1uF
C9
0.1uF
C16
0R
R44
0R
R48
DNI
TP17
DNI
TP14
DNI
TP7
DNI
TP23
DNI
TP30
DNI
TP13
DNI
TP12
DNI
TP8
DNI
TP6
DNI
TP20
DNI
TP11
DNI
TP22
1uF
C15
10K
DNI
R98
LED_DRV_GND
A3
DNC
A1
AFE4403
TX_CTRL_SUP
A2
TXN
A4
TX_REF
B1
TXP
A5
LED_DRV_SUP
A6
RX_DIG_GND
B2
DNC
B5
TX3
B3
DIAG_END
B4
DNC
B6
AFE_PDNZ
C3
DNC
C1
BG
C2
SPISIMO
C4
SPISOMI
C5
SCLK
C6
VCM
D1
VSS
D2
DNC
D3
RESETZ
D4
ADC_RDY
D5
SPISTE
D6
INP
E1
RX_ANA_GND
E2
DNC
E3
RX_ANA_SUP
E4
RX_DIG_SUP
E5
CLKOUT
E6
INN
F1
RX_ANA_SUP
F2
XIN
F3
XOUT
F4
DNC
F5
RX_DIG_GND
F6
U1
AFE4403YZPR
0
DNI
R15
PCB Layouts and Schematics
www.ti.com
12.4 Schematics
This section includes the AFE4403EVM, SFH7050 sensor board, and NJL5310R sensor board schematics.
12.4.1
AFE4403EVM Schematics
Figure 85
through
Figure 88
illustrate the AFE4403EVM schematics.
Figure 85. AFE4403EVM Schematics (1 of 4)
64
AFE4403 Development Guide
SLAU572B – June 2014 – Revised July 2014
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