LG MG120a Service Manual page 17

Figure 3-3 RF3166 PAM Pin Configuration-9-Pin
Table 3-1. RF3166 Pin Names and Signal Descriptions
PIN Function
1 DCS/PCS
RF input to the DCS band. This is a 50ohm input
IN
2 BAND Logic Low enable GSM band Logic HIGH enable DCS/PCS band
SELECT
3 TX Enable PA module for operation with a logic high
ENABLE
4 VBATT
Power supply for the module
5 GND
6 VRAMP Ramping signal from DAC. No external filtering is required
7 GSM IN
50ohm input pin for GSM band
8 GSM OUT 50ohm output pin for GSM band
9 DCS/PCS 50ohm output pin for DCS/PCS band
OUT
Pkg GND
Base
3. TECHNICAL BRIEF
Description
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