3 Block Diagrams
3-1 Main RF
Block Diagrams
3-1
SA
W
DCS
GSM
GSMTX2
DCSTX2
RxEN_FEDCS
RxEN_FEGSM
U401
SA
W
F304
F303
F301
F302
U300
Q300
RxEGSM
(925~960MHz)
RxDCS(1805~1880MHz)
TxEGSM(880~915MHz)
TxDCS(1710~1785MHz)
U305
DUAL
COUPLER
U405
DET
.
DCSP
AM U408
TXPOWER
SA
W
SA
W
BPF
246MHz
F300
Dip.
RXLO1DCS
2051.2~2125.8MHz
BANDSEL
DEMODEN
EGSM:1
171.2~1216MHz
EGSM:493~518MHz
DCS:498~519MHz
DCS:310.8MHz
GSM:295.8MHz
DCS:2019.2~2125.8MHz
PLLEN
TXEN1
QRXP
IRXP
VMID
RXLO3
13MHz
TXEN1
DCSTX1
TXEN1
GSMTX2
DCSTX2
GSMP
AM U402
GSMTX1
Dip.
BPF
Mod.
QTX
REF
13MHz
QTXI
ITX
ITXI
VCO
LPF
U500
1/5
BPF
1/3
VCO
X501
X500
DUAL
PLL
DUAL
VCO
VCO
X2
Ref
Osc
BPF
U301
RXLO1GSM
1
171.2~1205.8MHZ
RXLO2
259MHz
F305
PLL
O˚
90˚
LNA
VGA
LNA
OP amp
PA
PA
Содержание SGH-2400
Страница 2: ...Samsung Electronics Co Ltd Printed in Korea 11 1999 Rev 1 0 GH68 00844A ELECTRONICS ...
Страница 5: ...Exploded Views and Parts List 1 3 NO DESCRIPTION SEC CODE Q TY REMARK 39 EXT BATT 40 ULTRA EXT BATT ...
Страница 7: ...1 5 1 5 Desk Top Charger SEC CODE GH44 00090A Exploded Views and Parts List 1 9 10 11 6 7 8 2 3 4 5 ...
Страница 23: ...4 1 PCB Diagrams 4 PCB Diagrams 4 1 Main Top ...
Страница 24: ...4 2 4 2 Main Bottom PCB Diagrams ...
Страница 41: ...Samsung Electronics Co Ltd Printed in Korea 11 1999 Rev 1 0 GH68 00844A ELECTRONICS ...