Schematics

5
5
4
4
3
3
2
2
1
1
D D
C C
B B
A A
50Ω
50Ω
50Ω
50Ω
50Ω
SKY13414-485LF Control Logic
V1 V2 V3
RF1 RF2 RF3 RF4
000
00
00
0
1
11
1
ANT
ANT
ANT
ANT
ANT1
ANT0
ANT_CTRL1
ANT_CTRL1
ANT_CTRL2
ANT_CTRL2
RF_IN_OUT[4]
P2V7
P3.3V_MCU P2V7
P2V7
P3.3V_MCU P2V7
P2V7
ANT0[2]
ANT1[2]
Title
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of
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57Thursday, December 24, 2020
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57Thursday, December 24, 2020
Title
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<Doc> V3.2
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57Thursday, December 24, 2020
C133
100pF
1 2
Q3
RE1C002UN
1
3 2
C27
100pF
1 2
U23
SKY13414-485LF
VDD
4
V2
6
V1
7
RF4
10
NC2
8
RF3
2
NC4
12
ANT
13
NC5
14
RF1
3
NC1
1
RF2
9
V3
5
NC3
11
GND
15
R21110K 1%
J2
TX/ANT1
1
2
3
R204 0
1 2
R208
10K 1%
J4
TX/ANT3
1
2
3
R90
0
12
R210
10K 1%
C132
100pF
1 2
C47
100pF
1 2
R212
10K 1%
R207
10K 1%
R20910K 1%
J3
TX/ANT2
1
2
3
J1
TX/ANT0
1
2
3
Q4
RE1C002UN
1
3 2