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5. SGH-N707 Block Diagrams
5-1
1. RF Solution Block Diagram
GSM RX (869~984 MHz)
LN A
PG A
PG A
ADC
ADC
VCT CXO
(OSC401)
GSM TX
(824 ~ 849 MH z)
PCS TX
(1850 ~ 1910 MHz)
Dua l PA M
(U403)
Fr ont
En d
Mod ule
(U402)
RF
Connector
(U401)
Si 42 05
(U404)
RF
PLL
IF
PLL
PD
LPF
Mi x e r
Channel
Fi
lt
er
PG A
PG A
DAC
DAC
10 0
kH z
CS P
22 00 B1
(U101)
Bryc e Park
I
Q
I
Q
SDATA
SCLK
SENB
PDNB
LN A
PCS RX ( 1960 MHz )
