LG KG225 Service Manual page 15

3. TECHNICAL BRIEF
SKY77328 PAM Pin Configuration-20-Pin
Leadless (Top View)
Table 4. SKY77328 Pin Names and Signal Descriptions
Pin Mame
1 BS
2 VCC1A
3 DCS/PCS IN
4 GND IN
5 GND
6 VCC1B
7 GND
8 GND
9 GND
10 GND
11 GSM OUT
12 GND
13 GND
14 GND
15 DCS/PCS OUT
17 VBATT
18 ENABLE
19 RSVD(GND)
20 VAPC
GMD PAD(21) GND
Band Select
VCC (to GSM 1st stage, DCS/PCS 1st stages, BiCMOS PAC)
RF input 1710-1910 MHz (DCS1800, PCS1900)
RF input 824-915 MHz (GSM850/900)
RF and DC Ground
RF and DC Ground
RF and DC Ground
RF and DC Ground
RF and DC Ground
RF and DC Ground
RF Output 824-915 MHz (GSM850/900)
RF and DC Ground
RF and DC Ground
RF and DC Ground
RF Output 1710-1910 MHz (DCS 1800, PCS1900)
Battery input to high side of intemal sense resistor
BiCMOS Enable
RF and DC Ground
Power Control Bias Voltage
Ground Pad, bottom
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Figure 6. Typical Case Makings
Description