Table of Contents
Advertisement
KEY PWB-B(2/2)
A
G
BS0
G
5-29 (1-D)
B
BS1
G
BS2
G
5-23 (11-G)
BATT
G
5-28 (6-A)
VTXVCO
C
G
5-28 (6-A)
VRF
RAMPDAC
G
5-29 (8-E)
D
G
ITXN
G
ITXP
G
QTXN
G
QTXP
5-27 (8-G)
E
G
QRXN
G
QRXP
G
IRXP
G
IRXN
G
VTCXO
5-26 (6-G)
G
VSYNTH
F
SYNTHEN
G
5-29 (11-E)
TCXOOUT
G
5-29 (8-D)
G
5-29 (11-E)
SYNTHCLK
AFCDAC
G
5-29 (8-E)
G
SYNTHDATA
G
5-29 (11-E)
H
NOTES ON SCHEMATIC DIAGRAM can be found on page 5-1.
1
CONFIDENTIAL
RECEPTION SIGNAL
BS
BS0
BS1 BS2
TX
LOW
LOW
HIGH
GSM
RX
LOW
LOW
LOW
TX
HIGH
LOW
HIGH
DCS
RX
HIGH
LOW LOW
TX
HIGH
HIGH
HIGH
PCS
RX
HIGH
HIGH
LOW
VTXVCO
C889
2.2
R887
100K
+B
L972
L951
FERRITE BEADS
+B
FERRITE BEADS
L973
FERRITE BEADS
L974
OUTPUT
FERRITE BEADS
Vcc
3
4
Vcont
1
2
GND
TCX951
26MHz
TCXO
VCO971
3
2
Pin3
VCO971
Rx
50CH)
(~
LOW
4
GSM
RF VCO
Tx,Rx
HIGH
(51CH~)
5 6 7
DCS
LOW
PCS
HIGH
2
3
TRANSMISSION SIGNAL
VRF
R941
C941
10
0.1
R942
10
C942
13
14 12 11
0.1
R944
4.7K
6
C944
C945
0.0018
270P
4
(CH)
C952
100P
5
(CH)
C946
0.01
C975
150P
R973
(CH)
3.3K
R972
1.5K
R974
4.7K
C974
C973
C976
0.0082
0.001
C971
0.01
0.1
+B
1
FL971
8
BALUM
4
+B
17
20
29
,
,
IC992
TC7W00FK
LOGIC
15
18
27
,
,
16
19
28
,
,
IC993
NL27WZ08
+B
LOGIC
+B
+B
8 7
10 9
+B
C901
0.01
IC901
HD155148TF
RF
C905
0.01
C980
C981
0.0022
0.0022
+B
6
5
4
1 2 3
C979
3P(CH)
5
+B
R886
10K
C860
22P(C
R871
47
L861
FERRITE BEADS
VCO8
GSM
DCS
PCS
L90
8.2n
L902
8.2n
L903
2.7n
L904
2.7n
L905
2.2n
L90
2.2n
6
Advertisement
Table of Contents
