HUAWEI MC509 Series CDMA LGA Module
Hardware Guide
Description of the Application Interfaces
Issue 02 (2013-05-06)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
44
3.11 RF Antenna Interface
MC509 module provides an RF ANT PAD for connecting an external antenna.
Through the MAIN_ANT pad, the antenna interface is routed to the coaxial connector
on the DTE (impedance 50
Ω).The external antenna is connected to the module
through the coaxial connector.
A match for the antenna must be reserved at the antenna port.
Table 3-11
Signals on RF Antenna interface
Pin No.
Pin Name
I/O
Description
107
MAIN_ANT
-
RF main antenna pad
111
GPS_ANT
-
RF GPS antenna pad
115
AUX_ANT
RF divert antenna pad
3.12 Reserved Interface
The module provides 4 reserved pins. All of reserved pins cannot be used by the
customer.
Table 3-12
List of reserved pins
Pin No.
Pin Name
I/O
Description
15, 28, 29, 43
Reserved
-
Reserved
3.13 NC Interface
The LGA module has 46 NC pins. All the NC interfaces should not be connected.
Please keep this pin open.
Table 3-13
List of not connected pins
Pin No.
Pin Name
I/O Description
1
–4, 9, 10, 16–27, 33, 35, 37,
47, 60
–70, 82–84, 92, 94, 95,
102
–104, 117–120
NC
-
Not connected, please keep
this pin open.