![background image](http://html.mh-extra.com/html/samsung/sgh-x450/sgh-x450_service-manual_1191238019.webp)
5. SGH-X450 Block Diagrams
SAMSUNG Proprietary-Contents may change without notice
5-
1
This Document can not be used without Samsung's authorization
1. RF Solution Block Diagram
EGSM RX (925~960 MHz)
DCS RX (1805~1880 MHz)
SAW
FILTER
LNA
LNA
PGA
PGA
ADC
ADC
VCTCXO
(OSC100)
EGSM TX
(880 ~ 915 MHz)
DCS TX
(1710 ~ 1785 MHz)
Dual PAM
(U200)
Front
End
Module
(U201)
RF
Conector
(CON201)
Si4205
(U100)
RF
PLL
IF
PLL
PD
LPF
Mixer
C
ha
nn
el
Fi
lt
er
PGA
PGA
DAC
DAC
100
kHz
CSP1093
(U500)
Bryce Park
I
Q
I
Q
SDATA
SCLK
SENB
PDNB
LNA
PCS RX (1930~1990 MHz)
(1850 ~ 1910 MHz)
PCS TX
(F200)