GX20
4 – 4
CONFIDENTIAL
Figure 4 RF BLOCK DIAGRAM (2/2)
LOOP
FILTER
AUTO
POWER
CONTROL
IC881
HD155173
IC831
PF08123B
RF POWER AMP.
Tx VCO
VCO851
GSM Rx
DCS Rx
PCS Rx
FL801
RF SWITCH
FL817
ESD DEVICE
J801
AERIAL
RF VCO
VCO971
SAW FILTER
FL902
SAW FILTER
FL901
ATT
ATT
BALUN
RF
CONNECTOR
17
15
43,44
4
50
49
3
11
10
4
6
8
7
4
6
9
+B(VTXVCO)
11
3,7
1
5
2,4,6,8
10,12
8
1
7
2
+B(VBAT)
3,6
9
8
1,2,15,16
5,6,7
+B(VTXVCO)
4,9,10
11,14
12
13
1
4
4
1
2,3
2,3
R811
6
1
6
1
3
4
2,5
2,5
11
1
2,4,8
6,10,12
9
7
5
3
3
1
1
2
3,4
2,5
1
5
1
+B(VSYNTH)
2,4,6,8
7
2
2
2
1,3,5
1,3,5
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
TxVCO
EGSM 880.2MHz - 914.8MHz
DCS 1710.2MHz - 1784.8MHz
PCS 1850.2MHz - 1909.8MHz
5
4
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
FL971
R816
DIRECTIONAL
COUPLER
FL811
GSM
Tx
DCS/PCS
Tx
DIRECTIONAL
COUPLER
FL816
Rx LINE
CONTROL LOGIC LINE
Tx LINE
SAW FILTER
FL903
4
6
4
5
1,3,5
ER
LOOP
FILTER
Содержание GX20
Страница 38: ...GX20 2 32 CONFIDENTIAL Figure 64 Contact points Figure 65 Turning power on Points Push ...
Страница 91: ...GX20 3 7 CONFIDENTIAL MEMO ...
Страница 96: ...GX20 4 5 CONFIDENTIAL MEMO ...