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Nokia Customer Care
TF4 Technical Information
Company Confidential
TFE-4/RV-1
Issue 2.0 Mar/2005
Copyright
©
2005
Nokia Corporation.
Page 8b-45
Company Confidential
Figure 31: RF frequency plan
On next page the RF block diagram is shown. Voltage supplies are marked with dotted
lines.
EGSM: 925-960 MHz
DCS: 1805-1880 MHz
PCS: 1930-1990 MHz
f
f
f/4
f/4
f
f
Mjoelner
f/2
f/2
PLL
3420-
3980
MHz
I-signal
Q-signal
RX
I-signal
Q-signal
TX
PCS: 1850-1910 MHz
DCS: 1710-1785 MHz
EGSM: 880-915 MHz
XTal
1/1
1/2
LPRFCLK
RFCLK
26 MHz