User Guide
Block Diagrams 4-4
4-2-2 RF Rx Part
SGH-N628 RF Block Diagram - Rx Part
Frequency = 947.467 MHz
Power = - 46 dBm
- GSM : Tx level 5 @ 60 CH, BS Power = - 40 dBm
- DCS : Tx level 0 @ 698 CH, BS Power = - 40 dBm
Dual
SAW
Filter
U604
VP40575
U501
IRXP
IRXN
QRXP
QRXN
RXEN1
RXEN2
925 ~ 960 MHz
1805 ~ 1880 MHz
HD155128TF
U605
Antenna
S/W
U602
8
LNA
LNA
C630, L612
U601
IF SAW Filter
(225MHz)
Mixer 2
PGA
I & Q
Demod.
Mixer 1
Mixer 1
LC Filter
(45MHz)
1/2
3047
10
1
1
3
7
5
1
8
7
5
53,54
2,3
49,50
8,6
4,2
40,41
27
SDATA
SCLK
SYNEN1
- 46dBm
@ 947.467 MHz
- 50dBm
@ 1842.467 MHz
-47dBm
-30dBm
-33dBm
-38dBm
-52dBm
-43dBm
-9dBm
@ 1172.4 MHz
-9.5dBm
@ 1617.4 MHz
GSM : 1150 ~ 1185 MHz
DCS : 1580 ~ 1655 MHz (Rx)
-8dBm @ 540 MHz
-24.4dBm (G)
-29dBm (D)
@ 224.933 MHz
-31dBm (G)
-35dBm (D)
-22dBm (G)
-25dBm (D)
@ 45.067 MHz
-50dBm (G)
-54dBm (D)
@ 67 kHz
26
25
24
33
32
4443
Dual
SAW
Filter
U634
4
3
6
10
SI4133-MLP28
U612
VCTCXO
13MHz
U613
IF VCO
1080MHz
PLL1
PLL2
RF VCO
AFCDAC
10
23
15
62Ch Rx Lo
698Ch Rx Lo