Pa Select Function; Rf Block Specifications; Gsm1900 Duplex Filter - Nokia NSB-5 Series Technical Documentation Manual

PAMS Technical Documentation
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

Parameter Transmit section
Passband
Maximum insertion
loss in passband
Maximum passband
ripple
Maximum VSWR
Terminating imped-
ance
Minimum attenua- Freq. range
tions
1930...1940
1940...1990
3800...5730
Issue 1 03/01
Table 18: Duplex filter
1850...1910
o
2.0 (+25 C)
o
2.2 (-30...+85 C)
1.5
1.8
50
Att. (min)
15
17
32
Nokia Mobile Phones Ltd.
Receive section
1930...1990
o
3.4 (+25 C)
o
3.6 (-30...+85 C)
1.6
1.8
50
Freq. range Att. (min)
0...1100 50
1100...1700 35
1700...1830 30
1830...1910 20
2010...2070 10
2070...2700 25
2700...5000 20
5000...6000 15
NSB-5
System Module
Unit
MHz
dB
dB
ohms
MHz/dB
MHz/dB
MHz/dB
MHz/dB
MHz/dB
MHz/dB
MHz/dB
MHz/dB
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