
9
Figure A2. Schematic Diagram of RF Transmitter Daughter Board
Vdd
Vdd/
Vdd/
Control1
Control2
MOSI
SCLK
NCS/
Vdd/
VBatt
NC
MISO
MOSI
SCLK
NCS/
GND
Vdd
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
Vss_PA
ANT1
ANT2
Vdd_PA
Vd
d
IR
E
F
Vs
s
PW
R
_U
P
CE
CS
CLK
DIN
Vd
d
XC
1
XC
2
Vs
s
R202
22K
C211
2.2nF
C212
22pF
22nH
L203
3.6nH
L201
1pF
C202
1pF
C201
C213
1.5pF
Antenna
R203
5
C210
10uF
C205 C206
1nF
10nF
22pF C208 C207
22pF
X20116MHz
R201
1M
U201
nRF2402
1
2
3
4
5
6
7
8
9
10