Maxim Integrated MAX86140 - Page 27

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Evaluates: MAX86140 and MAX86141
MAX86140/MAX86141
Evaluation System
MAX86140/MAX86141 EV Kit Schematics (continued)
MAX86140_OSB_EVKIT
MAX86140
(MAX86142)
(ADDR)
(SCL)
(NC)
(SDA)
B
DNI
A = 0OHM ON THE A SIDE; DNI ON THE B SIDE
0OHM
A
B
B = 0OHM ON THE B SIDE; DNI ON THE A SIDE
AR4
TO THE CONNECTOR GROUND
MARK ARE DNI.
GROUND LINE SHOULD BE ROUTED SEPARATELY
R8
MAX86142
R6 A R7 R5
*NOTE: PARTS WITH
B B B
A
0OHM
U1 R9 R10 DNI
A
R11
R8A
R9
R12
R7A
R10
R8B
R7B
R6A R6B
R4A R5A
3
7
2 1
12 11
4
6 5
8
9
10
U2
TP1
R4B
C1
J1
R1
C4
R3 R2
C9
C2
R5B
C5 C3 C6
3 2
1
DS2
3 2
1
DS1
4
3 2
1
D1
C7 C8
B5
A1
C2
D2
A3 A4 A2
D3
C5 D5 D4
B1
C1 D1
B2 B4 B3
C3
C4
A5
U1
MOSI_SDA
MAX86140
10V
1UF
SCK_SCL
VLED+
CT DBLP31.12-5C8C-56-J6Q6
CT DBLP31.12-5C8C-56-J6Q6
VLED+
GPIO1 OPT_INT_N
PD1_IN
PD_GND
1V8_O
VLED+
10UF
VEMD5080X01
0
ACC_INT_N
10V
5016162575
1V8_A
22UF
0
SDA
SPI0_CSACC_N
0
1V8_A
MOSI_SDA
22UF
SCK_SCL
OPT_INT_N
22UF
1UF
SPI0_MISO
1V8_A
SPI0_CSACC_N
SPI0_CSOPT_N
SPI0_MISO
VLED+
SCK_SCL
MOSI_SDA
SPI0_MISO
0
0
0
MOSI_SDA SCK_SCL
GPIO1
0 0 0
0
0
22UF
0
22UF
0
0
22UF
0
10V
0
BMA280
0
1V8_O
SCL
SPI0_MOSI SPI0_SCK SPI0_CSOPT_N ACC_INT_N
VLED NC
VREF
SCLK
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
ESD
K K
A