User Guide

PAMS Technical Documentation System Module
NSB-5
Issue 1 03/01 Nokia Mobile Phones Ltd. Page 73
GSM1900 TX SAW Filter
Table 31: Electrical characteristics
TX Buffer
Table 32: TX buffer specifications
GSM1900 TX Ceramic Filter
Table 33: Electrical specifications
Parameter Minimum
Typical/
Nominal
Maximum Unit/Notes
Passband 1850 - 1910 MHz
Terminating impedance 50 ohms
Insertion loss in passband 4.8 dB
Amplitude ripple in passband 2.8 dB
VSWR in passband 2.5
Attenuation DC ... 1600 MHz 25 27 dB
Attenuation 1600 ... 1780 MHz 30 35 dB
Attenuation 1930 ... 1990 MHz 10 22 dB
Attenuation 2040 ... 2110 MHz 33 36 dB
Attenuation 2240 ... 2310 MHz 33 42 dB
Attenuation 2310 ... 5000 MHz 20 27 dB
Maximum drive level +13 dBm
Parameter Minimum
Typical/
Nominal
Maximum Unit/Notes
Operating frequency range 1710 1910
Gain 9 10 11 dB
NF 3 dB
Current consumption 20 mA
Output power (Z = 50W) 4 8 dBm
Input VSWR (Z = 50W) 2
Output VSWR (Z = 50W) 2
Parameter Minimum
Typical/
Nominal
Maximum Unit/Notes
Center frequency; fo 1880 MHz
Operating temperature range -30 ... +85 deg. C