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2.2 U9507E interface application
U9507E supplies multifold functional interface by a Mini PCIe Interface, such as , USIM card interface, USB interface,
audio interface*, UART interface*, PCM
（
Pulse Code Modulation
）
interface*and power supply interface and so on.
The detail information will be given in the follow sections.
2.2.1 RF antenna interface
The impedance of RF antenna is 50Ω.
The three connector is on the top of U9507E;
For minimizing the wasting of RF cable, user should pay more attention to make choice. We suggest choosing the cable
that satisfies:
• GSM900/LTE BAND5/LTE Band8/LTE BAND 20/LTE BAND28/WCDMA
BAND5/WCDMA BAND8<1dB
• DCS1800/LTE Band1/LTE Band3/WCDMA BAND1 <1.5dB
• LTE Band7/Band38/Band40<2dB
And the antenna should satisfy the table below
：
Item
Parameter
Plus(dBi) GSM DCS
UMTS
0.5
1
1
Type
Omni directional antenna
2.2.2 Power supply and earth
The power supply needed by U9507E, is listed as follow:
1. Voltage range DC:3.3V~4.2V , the power for U9507E working;
2. The earth point: GND;
The description of U9507E Power and GND pins is shown in the table 2.3 below.
Table 2.3 The description of U9507E Power and GND pins
Summary of Contents for U9507E
Page 1: ...U9507E User Manual ...
