User Guide

PAMS Technical Documentation System Module
NSB-5
Issue 1 03/01 Nokia Mobile Phones Ltd. Page 63
power sampling circuit and the ability of the software to reliably track multiple power
levels during ramping. The two regions are from power level 15 through 7 and from 6
to 0. Provisions have been made in the service software to automatically track these
break points in the calculation of the intermediate power levels.
RF Block Specifications
For further information on the different ASICs.
– CRFU_2a |5|
– SUMMA |6|
– COBBA_GJP |7|
– CCONT |3|
– MAD2_PR1 |8|
– CHAPS |9|
GSM1900 Duplex Filter
Table 18: Duplex filter
Parameter Transmit section Receive section Unit
Passband 1850...1910 1930...1990 MHz
Maximum insertion
loss in passband
2.0 (+25
o
C)
2.2 (-30...+85
o
C)
3.4 (+25
o
C)
3.6 (-30...+85
o
C)
dB
Maximum passband
ripple
1.5 1.6 dB
Maximum VSWR 1.8 1.8
Terminating imped-
ance
50 50 ohms
Minimum attenua-
tions
Freq. range Att. (min) Freq. range Att. (min)
1930...1940 15 0...1100 50 MHz/dB
1940...1990 17 1100...1700 35 MHz/dB
3800...5730 32 1700...1830 30 MHz/dB
1830...1910 20 MHz/dB
2010...2070 10 MHz/dB
2070...2700 25 MHz/dB
2700...5000 20 MHz/dB
5000...6000 15 MHz/dB