Appendix A Circuit Of Typical Interface - Huawei ME909u-521 Hardware Manual

HUAWEI ME909u-521 LTE LGA Module
Hardware Guide
9

Appendix A Circuit of Typical Interface

WL629D3_T01_TR_A
D310
33pF 33pF 100nF 1uF
107
MAIN_ANT
115
AUX_ANT
S301 111
GPS_ANT
TL3301AF160RG
1 3
81
POWER_ON_OFF
103
NC
47
JTAG_SRST_N
2 4 C358 100nF 37
NC
100
RESIN_N
102
RESERVED
104
RESERVED
17
RESERVED
16
RESERVED
14
PS_HOLD
15
SLEEP_STATUS
28
UART2_TX
29
UART2_RX
43
RESERVED
44
RESERVED
45
RESERVED
U302 46
RESERVED
48 125 51
GND GND GPIO
49 126 55
ME909_MISC
GND GND GPIO
50 127 105
GND GND GPIO
52 128 109
GND GND GPIO
53 129 113
GND GND GPIO
54 130
GND GND
56 131 60
GND GND RESERVED
57 132 61
GND GND RESERVED
58 133
GND GND
59 134 93
JTAG_RTCK
GND GND
106 135 42
JTAG_TCK
GND GND
108 136 87
JTAG_TDI
GND GND
110 137 72 JTAG_TDO
GND GND
112 138 30
JTAG_TMS
GND GND
114 139 36
JTAG_TRST_N
GND GND
116 140
GND GND
121 141 23
GND GND ANT_TUNE2
122 142 24
GND GND ANT_TUNE3
123 143 25
GND GND NC
124 144 26
GND GND NC
145 27
GND
RESERVED
18
RESERVED
LGA120H-3030A
19
RESERVED
20
RESERVED
21
ANT_TUNE0
22
ANT_TUNE1
101
LED_MODE
91
RESERVED
82
NC
83
NC
41
NC
40
NC
39
NC
38
NC
94
NC
95
NC
Issue 05 (2017-12-15)
J301
1 4
P1 P4
2 5
P2 P5
3 6
P3 P6
33pF
LGA120H-3030A
96
NC
97
NC
99
NC
98
NC
5
PCM_SYNC
8
PCM_CLK
6
PCM_DIN
7
PCM_DOUT
U302
117
NC
118
NC
119
NC
120
ME909_MISC NC
67
C353 and C354 are ready for dealing with filter di fferentia
RESERVED
69
RESERVED l mode interference and C357 is ready for dealing with
filter common mode interference.You can choose
68
RESERVED
the value of the C353, C354 and C357 according to the actual
9
RESERVED
10 PCB which is integrated 30mm×30mm LG A Module.
RESERVED
66
RESERVED
90
SIM_CLK
89
SIM_DATA
70
RESERVED
88
SIM_RESET
34
SIM_VCC
62
RESERVED
63
RESERVED
64
RESERVED
65
RESERVED
80
UART0_CTS
75
RESERVED
73
RESERVED
79
RESERVED
77
RESERVED
74
UART0_RTS
78
UART0_RX
76
UART0_TX
3
UART1_CTS
2
UART1_RTS
4
UART1_RX
1
UART1_TX
85
USB_DM
86
USB_DP
84
NC
12
VBAT
13
VBAT
33
NC
35
RESERVED
WAKEUP_IN_TO_MODULE
11
WAKEUP_IN
71
WAKEUP_OUT
32 VCC_EXT1
VCC_EXT1
31
NC
92
RESERVED
33pF
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
Appendix A Circuit of Typical Interface
J302
1
2 3 4 5
SMA6251A1_060_20GHT50GH_50
J303
1
These are impedance matching
2 3 4 5
circuit, the specific capacitance
SMA6251A1_060_20GHT50GH_50
and inductance value needs to
be adjusted, based on the
characteristic impedance of
the practical PCB.
J304
1
2 3 4 5
SMA6251A1_060_20GHT50GH_50
R301 0
C357 **2.2pF
R302 0
1MEG
R328
U301
RT8015AGQW
GND2
PVDD1
PVDD2
VDD
FB
COMP SHDN/RT
Note:"**" means that this component is not welded, but need to reserve component solder pad.
C371 22pF
C365 22pF
C372 22pF
C366 22pF
22PF
C367 22pF C373
U304
0
HPA00615DRVR
6 1
5V-P-3
IN OUT
2 R331 30K
ILIM
3
FAULT
5
GND1
4 7
EN
L303
2.2uF
PGND
LX2
LX1
GND1
R327 180K
0
L320
VCC_EXT1
R138 **10K
WAKEUP_IN_FROM_HOST
B 1
R117
**2.2K
WAKEUP_IN_TO_MODULE
**NPN-BEC
Q109
BC847ALT1
87