Maxim Integrated MAX86140 - Page 28

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Evaluates: MAX86140 and MAX86141
MAX86140/MAX86141
Evaluation System
MAX86140/MAX86141 EV Kit Schematics (continued)
MAX86141_OSB_EVKIT
(MAX86143)
(ADDR)
(SCL)
(NC)
(SDA)
MAX86141
B
R5 A
A
DNI0OHM
0OHM
A = 0OHM ON THE A SIDE; DNI ON THE B SIDE B = 0OHM ON THE B SIDE; DNI ON THE A SIDE
MAX86143
B B B B
A A A
DNI
U1 R7 R8 R4 R6 R9 R10
*NOTE: PARTS WITH
MARK ARE DNI.
GROUND LINE SHOULD BE ROUTED SEPARATELY TO THE CONNECTOR GROUND
A1
C2
D2
A3 A4 A2
B5D3
C5 D4 D5
B1
C1 D1
B2 B4 B3
C3
C4
A5
U1
R11
R9
R12
R7A
R10
R8B
R7B
C5
R8A
R6A R6B
R5A R4A
3
7
2 1
12 11
4
6 5
8
9
10
U2
TP1
R4B
C1
R1
J1
C9
C3 C10
R3 R2
C2
R5B
C4
4
3 2
1
PD2
3 2
1
DS1
4
3 2
1
PD1
C7 C8
BMA280
0
SPI0_CSACC_N
MOSI_SDA
VLED+
MAX86141
CT DBLP31.12-5C8C-56-J6Q6
GPIO1
PD_GND
MOSI_SDA
PD2_IN
SCK_SCL
PD1_IN
1V8_O
SPI0_CSOPT_N
SPI0_MISO
0
VEMD5080X01
OPT_INT_N
SPI0_MISO
0
VLED+
22UF
1V8_A
10V
0
22UF
GPIO1
SCK_SCL
1V8_A
SCK_SCL MOSI_SDA
1UF
0
0
SPI0_MISO SPI0_CSOPT_N ACC_INT_N
0
22UF
0
10V
0
0
SDA
SPI0_MOSI
VLED+
SCK_SCL
1UF
22UF
10UF
0
0
22UF
0
10V
ACC_INT_N
22UF
SPI0_CSACC_N
0
OPT_INT_N
1V8_A
SCL
5016162575
SPI0_SCK
0
0
MOSI_SDA
0
1V8_O
VEMD5080X01
VLED
SCLK
VREF
PD2_IN
SDI
PGND
VDD_ANA
LED1_DRV PD1_IN
GND_ANA GND_DIG
VDD_DIG
LED2_DRV PD_GND
GPIO2 GPIO1
INTB
LED3_DRV
SDO
CSB
SCX PS CSB
GND
GNDIO
VDD
INT2 INT1
NC
VDDIO
SDX SDO
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
ESD
K K
A