Kirisun DP770 - Operational Safety Guidelines

Kirisun Communications Co.,Ltd
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A
B
C
D
54321
D
C
B
A
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C1136 0.1uF
C958100pF C95910pF
FB920 BLM21PG221SN1D
R29910K
C960102
R251 NC
R30010K
C1134 0.75pF
R252 0R
R281NC
FB919 BLM21PG221SN1D C1135 0.1uF
L235
3.3nH
C1133 1pF
+
C18210uF/16V
R349 NC
TP636
1PPS
C1143 1.5pF
R352 0R
C112910pF
1
NC
2
SS_N
3
PPS
4
EXTINT0
5
USB_DM
6
USB_DP
7
VDDUSB
8
NC/RFVCC
9
RFVCC
10
GND
11
RFIN
12
GND
13
GND
14
MOSI
15
MISO
16
SCK
17
NC
18
TXD1
19
RXD1
20
TXD0
21
RXD0
22
V_BCKP
23
VCC
24
GND
M2
SKG12A
R350 NC
L234
3.3nH
C1130100pF
R282NC
L233
3.3nH
1
INPUT
2
GND
3
PS
4
OUTPUT
5
GND
6
VCC
U17
UPC8231TK
R6
330R
L7 18nH
R7
470R
L8
8.2nH
C30
150pF
L9 39nH
C31
150pF
C32
150pF
1
IN
2
GND
3
GND
4
OUT
5
GND
U16
B9440
C27 150pF
L6 8.2nH
C28
150pF
C29 150pF
R8
NC
GPS_3V3
GPS_LDO_3V3
GPSEXT_TXD
GPSEXT_RXD
ANT
GPS_MODESELECT
GND
GND
GND