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HUAWEI MU739 HSPA+ LGA Module
Development Board Guide
2.3.7 Antenna Connector
The DVK development board provides two antenna connectors. One is the primary
antenna interface J701 (as red circle 8 in Figure 2-1 ), the other is the diversity
antenna interface J702 (as red circle 9 in Figure 2-1 ). The antenna connectors can
be connected to an RF tester (CMU200 or Agilent 8960), or directly connected to
external antennas for the testing services of the existing network.
Because there is some line loss on the trace between the module and the antenna
connector, when connect to CMU200 or other equipments for testing the RF
parameter, this line loss should be considered. Table 2-1 lists the line loss which
should be added on different frequency bands.
Table 2-1 Line loss of the baseboard
Frequency Bands (MHz)
850
900
1700
1900
2100
2.3.8 Jump Configuration
The DVK has 6 jumps, as shown in Figure 2-1 . Four jumps need to be configured
necessarily during use. Table 2-2 lists the usage and configuration method of the
jumps.
Table 2-2 jump configuration
Position
Number
J103
J104
J105
J501
Issue 01 (2011-12-28)
Line Loss (dB)
0.4
0.4
0.5
0.6
0.6
Mark on the
Usage and Configuration
Development
Board
J307 (as red
This jump is used to select the power
circle 2 in
supply mode. Configuration is needed. For
Figure 2-1 )
configuration method, see section 2.3.1.
J104 (as red
All the four pins are the output of DC-DC in
circle 5 in
base board. No configuration is needed.
Figure 2-1 )
They can be used for testing.
J105 (as red
Both pins are GND pins. No configuration is
circle 4 in
needed. They can be used for testing.
Figure 2-1 )
J501 (as red
This jump is used to select the fly mode
circle 6 in
(low active). Configuration is needed. When
Figure 2-1 )
the two pins are connected, the module
enters the fly mode.
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Overview of the DVK
Figure
10
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