User Guide

PAMS
Technical Documentation
NME–3
Technical Information
Page 53
Issue 1 10/99
TX Filter Specifications
Table 34. Specification TX interstage filter
Parameter Min. Typ. Max. Unit
Passband 890 – 915 MHz
Insertion loss 3.5 dB
Ripple in passband 1.5 dB
Attenuation DC...813 MHz 30 dB
Attenuation 925...935 MHz 4.5* dB
Attenuation 935...960 MHz 5** dB
Attenuation 1006...1031 MHz 40 dB
Attenuation 1122...1147 MHz 30 dB
Attenuation 1780...1830 MHz 10 dB
Attenuation 2670...2745 MHz 10 dB
Terminating impedance 50 ohm
Input/Output matching Mag(S
11
)
Mag(S
22
)
–8 dB
Maximum drive level +10 dBm
Power Amplifier
Table 35. Specification MosFet power amplifier Tamb = +25 deg. C, 50 ohms
Parameter Symbol Test condition Min Typ Max Unit
Operating freq. range 890 915 MHz
Supply voltage 10.5 12.5 16.5 V
Current consumption,
extreme conditions
Pout=41.5dBm, V
DD
=10.5V 4.5 A
peak
Current consumption,
nominal conditions
Pout=41.5dBm, V
DD
=13V 3.15 3.65 A
peak
Input power Pin 3 13 dBm
Output power 1 Pout 1 Pin= 3 dBm, V
DD
=12.5 V,
Vapc=7 V, Tc=+25 deg.C
42.3 43.6 dBm
Output power 2 Pout 2 Pin= 3 dBm, V
DD
=10.3 V,
Vapc=7 V, Tc=+80 deg.C
39.5 40.8 dBm
Power control range Vapc= 2 ... 7 V 100 dB
Isolation Pin= 3 dBm, V
DD
=12.5 V,
Vapc=0.5 V, Tc=+25 deg.C
–60 –40 dBm
Carrier switching time tr, tf V
DD
=12.5 V, Pin=3 dBm
Pout= 13W
1.5 2 us
Total efficiency
Pin= 3 dBm , Pout= +41.1
dB V 12 5 V
30 35 %
Control current Iapc
dBm, V
DD
=12.5 V
0.9 mA
peak
Harmonics, 2nd –50 –40 dBc
Harmonics, 3rd –55 –45 dBc