Available as: QB-761, Housing (E52-0187-2) RF AMPLIFIER MODEL QB-761 Maximum Ratings Features 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.) ! High Gain: 23.0 dB Typical ! High Power: +18 dBm Typical ! Environmental Screening Available Specifications CHARACTERISTIC TYPICAL MIN/MAX Ta= 25 ºC 806 - 870 MHz 23.0 ±0.5 Frequency Gain (dB) Gain vs. Temperature Gain Flatness Reverse Isolation (dB) VSWR In Out Note: 1. Specifications are guaranteed when tested in a 50 Ohm system. Specifications indicated as typical are not guaranteed. 1.0 -39 1.5:1 1.5:1 1 dB Compression (dBm) Output Intercept point 3rd Order 2nd Order Noise Figure (dB) Power Vdc mA +18 +32 3.5 +15 140 Typical Performance Data Gain (dB) 26 25 Reverse Isolation (dB) 0 -10 24 23 -20 5.0 4.0 22 -40 3.0 21 20 800 -50 2.0 -30 820 840 860 880 900 1 dB Comp. (dBm) 24 23 22 -60 800 2.2 2.0 1.8 1.6 21 20 1.0 820 860 840 880 820 Legend 840 860 + 25 ºC 880 900 1.0 800 820 840 860 880 900 3rd order intermodulation distortion (dBm) 36 35 34 33 Input 32 1.2 18 800 800 900 Input/Output VSWR +25 ºC 1.4 19 Noise Figure (dB) 7.0 6.0 31 30 Output 820 840 860 880 900 800 820 840 860 880 900 + 71 ºC - - - - - - -55 ºC Linear S-Parameters Data FREQ. MHz – – S11– – dB Ang – – S21– – dB Ang – – S12– – dB Ang – – S22– – dB Ang ================================================================== 806 -17.3 -179.1 23.1 -44.1 -152.1 -89.0 -18.8 75.9 838 179.7 -16.3 23.0 -44.3 157.3 -110.0 -25.4 -163.9 850 177.4 -16.0 22.9 -44.7 147.9 -118.4 -21.4 -151.3 870 165.2 -15.7 22.7 -45.2 132.7 -133.0 -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