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QB-761 Datasheet, PDF (1/1 Pages) Spectrum Microwave, Inc. – RF AMPLIFIER
RF AMPLIFIER
MODEL QB-761
Available as: QB-761, Housing (E52-0187-2)
Features
! High Gain: 23.0 dB Typical
! High Power: +18 dBm Typical
! Environmental Screening Available
Specifications
CHARACTERISTIC
Frequency
Gain (dB)
Gain vs. Temperature
Gain Flatness
Reverse Isolation (dB)
VSWR
In
Out
1 dB Compression (dBm)
Output Intercept point
3rd Order
2nd Order
Noise Figure (dB)
Power
Vdc
mA
TYPICAL
Ta= 25 ºC
806 - 870 MHz
23.0 ±0.5
1.0
-39
1.5:1
1.5:1
+18
+32
3.5
+15
140
MIN/MAX
Maximum Ratings
Ambient Operating Temperature ................. -55ºC to +71 ºC
Storage Temperature ............................... -65ºC to + 125 ºC
Case Temperature ................................................. + 125 ºC
DC Voltage ......................................................... + 18 Volts
Continuous RF Input Power ................................. + 13 dBm
Short Term RF Input Power ...... 50 Milliwatts (1 Minute Max.)
Maximum Peak Power .................... 0.5 Watt (3 µsec Max.)
Note:
1. Specifications are guaranteed when tested in a 50 Ohm system.
Specifications indicated as typical are not guaranteed.
26
25
24
23
22
21
20
800
24
23
22
21
20
19
18
800
Gain (dB)
820 840 860 880
1 dB Comp. (dBm)
820 840 860 880
Typical Performance Data
0
Reverse Isolation (dB)
-10
7.0
Noise Figure (dB)
6.0
-20
5.0
-30
4.0
-40
3.0
-50
2.0
-60
900 800
2.2
2.0
820 840 860 880
Input/Output VSWR +25 ºC
1.0
900
800 820 840 860 880 900
3rd order intermodulation distortion (dBm)
36
35
1.8
34
1.6
33
1.4
Input
32
1.2
31
1.0
Output
30
900
800 820 840 860 880 900
800 820 840 860 880 900
Legend
+ 25 ºC
+ 71 ºC - - - - - - -55 ºC
Linear S-Parameters Data
FREQ.
– – S11– –
– – S21– –
– – S12– –
– – S22– –
MHz
dB Ang
dB Ang
dB Ang
dB Ang
==================================================================
806
-17.3 -179.1
23.1 -89.0
-44.1 -152.1
-18.8 75.9
838
-16.3 157.3
23.0 -110.0
-44.3 179.7
-25.4 -163.9
850
-16.0 147.9
22.9 -118.4
-44.7 177.4
-21.4 -151.3
870
-15.7 132.7
22.7 -133.0
-45.2 165.2
-16.0 -154.2
Spectrum Microwave · 2144 Franklin Drive N.E. · Palm Bay, Florida 32905 · PH (888) 553-7531 · Fax (888) 553-7532 03/11/05
www.SpectrumMicrowave.com Spectrum Microwave (Europe) · 2707 Black Lake Place · Philadelphia, Pa. 19154 · PH (215) 464-4000 · Fax (215) 464-4001