LG GM360i Service Manual page 129

8. BGA Pin Map
Pin # Description
1 DCS/PCS in
2 MODE SELECT
 BAND SELECT (BS)
4 VBATT
5 VRAMP
6 TX_EN
7 GSM850 / 900 in
10 GSM850 / 900 out
12 DCS / PCS out
9, 1 Bypass Cap
8, 11, 14 GND
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LGE Internal Use Only
Function
DCS/PCS RF INPUT – DC blocked
MODE = High, the PAM operation in EDGE(SPSK) mode
MODE = Low, the PAM operation in GMSK mode.
BAND SELECT = Low, Low-band active
BAND SELECT = High, High-band active
Battery supply voltage, typ..0 – 4.5 V, nom. 1.6
DAC Control signal(analog), Nominal Vramp range is 0.2 to 1.6V
GMSK mode – Controls ramp profile and output power
EDGE mode – Controls ramp profile
TX_EN = High, PA is enabled for operation
TX_EN = Low, PA is sleep mode
GSM850 / GSM900 RF input –- DC blocked
GSM850 / GSM900 RF output –- DC blocked
DCS / PCS RF output –DC blocked
Connect 0.01uF bypass capacitor as close to pin as practical
Ground
U502(TQM7M5005H, SMPY0021101)
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