11223344556
67
78
8
D
D
C
C
B
B
A A
Title Number
Revision
Size A3Date:2015/1/27Sheet of
File:
E:\\..\GSM_ALC.SchDoc
Drawn By:
GND
GND GND
水解度5C71nF
5R10
10K
GND
5C5
100pF
5C4100nF GND
5R8
825R727
5C2
1nF
GND
5C31nF
5R9
51
5R12
4.7K 5R2
5C11nF
尘世佛心
5R3NC
5R1NC
GND
GSM_DL_OUT
GSM_DL_OUT_DET_G
+5V _R F S W
V c c
1G N D 2I N +3I N -4G N D 5G N D 6ENX 7GND 8COFSA 9COFSB 10GND 11GND
12
G N D 13V S E T 14R M S O U T 15V c c 16S C I 117S C I 2
18SCI3
19SCI420Vcc 21
GND 22Vcc
23GND
24
GND
25
5U1
HMC1010
5L1NC
5C6
100nF
GND
GND
5R114.7K
GND
5C11
100pF
5C10
100nF GND
+5V _R F S W
5R14
10K
GND 5R15
10K
GND
5R1910K
GND
5R1710K GND
5C9
电冰箱保护器100pF
5C8
100nF
GND
+5V _R F S W
GND
GND
GND
GND GND
5C181nF
5R30
10K
GND
5C16
100pF
5C15
100nF GND
5R28
825R2727
女夭5C13
1nF
GND
5C141nF
5R29
51
5R32
4.7K
5R22
5C121nF
5R23NC
5R21NC
GND
GSM_UL_OUT
GSM_UL_OUT_DET_G
+5V _R F S W
V c c
1G N D 2I N +3I N -4G N D 5G N D 6ENX 7GND 8COFSA 9COFSB 10GND 11GND
12
G N D 13V S E T 14R M S O U T 15V c c 16S C I 117S C I 2
18SCI3
19SCI4
20
Vcc 21
GND 22
Vcc 23GND
24
GND
先进制造技术的应用25
5U2
HMC1010
5L2
NC
5C17
100nF GND
GND
5R314.7K GND
5C22
100pF
5C21
100nF GND
+5V _R F S W
5R34
10K
GND
5R35
10K
GND
5R3910K
GND
5R3710K GND
5C20
100pF
5C19
100nF
GND
+5V _R F S W
GND
GND
mc小霞
GSM 下行输出功率检测
U35输出的信号，如果四路都没有增益有可能是这个信号引起的，特别是四路的检测功率都没有
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