Samsung SGH-X430 Service Manual page 20

5. SGH-X430 Block Diagrams
1. RF Solution Block Diagram
EGSM RX
925~960 MHz
(CH62 : 947.4 MHz)
F101
(CH698 : 1842.4 MHz)
Antenna
RF
S/W
Conector
(CON1)
(U201)
1710 ~ 1785 MHz
(CH698 : 1747.4 MHz)
Dual PAM
(U200)
EGSM TX
880 ~ 915 MHz
(CH62 : 902.4 MHz)
Si4205 (U100)
F100
SAW
LNA
Filter
Mixer
SAW
LNA
Filter
DCS RX
1805~1880 MHz
DCS TX
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PGA ADC
PGA ADC
100
kHz
RF IF
PLL
PLL
PD
LPF
5-1
I
PGA DAC
Q
PGA DAC
CSP1093
(U500)
VCTCXO
(OSC100)
SDATA
SCLK
SENB
PDNB
I
Q
Bryce Park