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TxVCO
EGSM 880.2MHz - 914.8MHz
DCS 1710.2MHz - 1784.8MHz
PCS 1850.2MHz - 1909.8MHz
+B(VTXVCO)
11
17
LOOP
9
FILTER
Tx VCO
VCO851
15
43,44
ER
FL971
49
4
1
BALUN
50
3
2,5
11
4
2
6
10
1,3,5
SAW FILTER
FL901
8
4
2
7
6
1,3,5
SAW FILTER
FL902
5
4
2
6
4
1,3,5
SAW FILTER
FL903
CONFIDENTIAL
+B(VTXVCO)
+B(VBAT)
3,6
3,7
7
2
8
5
1
1
4
9
2,4,6,8
10,12
IC831
PF08123B
RF POWER AMP.
LOOP
FILTER
+B(VSYNTH)
5
7
1
2,4,6,8
RF VCO
VCO971
GSM Rx
RFVCO
Tx EGSM 3848.8MHz - 3979.2MHz
DCS
3580.4MHz - 3733.6MHz
PCS
3860.4MHz - 3979.6MHz
Rx EGSM 3700.8MHz - 3839.2MHz
DCS
3610.4MHz - 3759.6MHz
PCS
3860.4MHz - 3979.6MHz
DCS Rx
PCS Rx
Figure 4 RF BLOCK DIAGRAM (2/2)
IC881
4,9,10
8
HD155173
AUTO
5,6,7
POWER
11,14
CONTROL
1,2,15,16
12
13
R816
R811
4
1
2,3
2,3
ATT
ATT
4
1
DIRECTIONAL
COUPLER
FL816
4
5
1
6
3
2,5
1
6
2,5
DIRECTIONAL
COUPLER
FL811
11
1
6,10,12
7
5
3
FL801
RF SWITCH
4 – 4
AERIAL
RF
2,4,8
CONNECTOR
2
9
1
3
1
J801
FL817
ESD DEVICE
3,4
EGSM Band
Tx 880.2MHz - 914.8MHz
Rx 925.2MHz - 959.8MHz
DCS Band
Tx 1710.2MHz - 1784.8MHz
Rx 1805.2MHz - 1879.8MHz
PCS Band
Tx 1850.2MHz - 1909.8MHz
Rx 1930.2MHz - 1989.8MHz
Rx LINE
Tx LINE
CONTROL LOGIC LINE
GX20
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