Gps Receiver - LG -V909DW Service Manual

3. TECHNICAL BRIEF

3.4 GPS RECEIVER

The GPS input signal from Tablet's antenna is filtered by a GPS RF filter and then connected to GPS LNA input
pin. The circuit is shown in Figure 3-1. This circuit is located on Main board. LNA output signal is connected to
daughter board using coaxial cable.
Figure 3-1 GPS signal path on Main Board
The GPS input from the LNA output is filtered by a GPS RF filter and then connected to an impedance
transformer circuit that optimally matches the impedance looking into the GPS LNA in MDM6200. The circuit
is shown in Figure 3-2.
Figure 3-2 GPS Signal Path on Daughter Board
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