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LGE Internal Use Only
Copyright © 2009 LG Electronics. Inc. All right reserved.
Only for training and service purposes
3. Technical Brief
GM750
3.4. GPS MODE
3.4.1 GPS RECEIVER
The GPS receiver input employs a single-ended connection realized by this pin. The GPS input is
routed from the GPS antenna switch, through a band-pass filter and then an impedance transformer
circuit that optimally matches the impedance looking into the GPS LNA. The impedance transformer
circuit topology is shown in Figure 1-7.
[Figure 1.7] GPS Input Network Topology