LG KG290 - FEM for Triband(FL500)

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3. TECHNICAL BRIEF
3.3 FEM for Triband(FL500)
LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved.
Only for training and service purposes
Table 3-1 Band SW Logic Table
Figure 3- 2 FEM CIRCUIT DIAGRAM
Mode Tx 1GHz Tx 2GHz Rx GSM Rx EGSM Rx DCS Rx PCS
Vdd On On On On On On
Vctrl1 On On Off Off Off Off
Vctrl2 Off On On On Off Off
Vctrl3 Off Off On Off On Off
NC2
19
PCS_RX+
13
12
PCS_RX-
TX1G
6
TX2G
8
VCTRL1
22
21
VCTRL2
20
VCTRL3
3
VDD
DCS_RX+
15
14
DCS_RX-
EGSM_RX+
17
16
EGSM_RX-
GND1
2
25
GND10 GND11
26
GND2
4
GND3
5
7
GND4
GND5
9
10
GND6
11
GND7
GND8
23
GND9
24
18
NC1
YGHF-S006T
FL500
1
ANT
39p
C545
2V75_VVCXO
C535
0.1u
C544
39p
C546
39p
39p
C534
ANT_SW3
ANT_SW2
ANT_SW1