Schematic

1
1
2
2
3
3
4
4
D D
C C
B B
A A
Heart Rate Monitor
LF-CD
V1.0
2016/4/1
17:39:36
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SKU:
SEN0213
HPDRIVE
1
+IN
2
-IN
3
RLDFB
4
RLD
5
SW
6
OPAMP+
7
REFOUT
8
OPAMP-
9
OUT
10
LO-
11
LO+
12
SDN
13
AC/DC
14
FR
15
GND
16
+VS
17
REFIN
18
IAOUT
19
HPSENSE
20
AD8232
U1
330nF
C4
10MR11
1.4M
R12
10MR13
330nFC6
180KR3
180KR4
10MR2
10MR1
1nFC2
360KR5
1MR9100KR8
1M
R7
10nF
C3
1M
R6
1.5nFC1
100nF
C5
3V3
GND
10MR10
10MR14
100nFC7
3V3
3V3
GND
3V3
GND
REFOUT
REFOUT
Heart
D1
1K
R15
1K
R16
1K
R17
L
D3
R
D2
SIGNAL_OUT
GND
1
2
3
4
5
6
PJ342
P2
10KR18 3V3
1
2
3
PH2.0-3P
P1
+5V
GND
SIGNAL_OUT
1uF
C9
100nF
C10
10uF
C8
Vin
3
ADJ
1
+Vout
2
XC6206P332MR
U2 3V3
+5V
3.3V
100nF
C11
RA
RL
LA
RA
LA
RL
1
HOLE3
HOLE
1
HOLE4
HOLE