RF AMPLIFIER MODEL QBS-256 Available as: QBS-256, Housing (E52-19500) Maximum Ratings Features Ambient Operating Temperature ................ -20 ºC to +70 ºC Storage Temperature .............................. -55 ºC 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: 24.0 dB Typical High Power: +33 dBm Typical Operating Temp. - 20 ºC to +70 ºC Environmental Screening Available Specifications CHARACTERISTIC Frequency Gain (dB) TYPICAL MIN/MAX Ta= 25 ºC 1800 - 2000 MHz 24.0 ± 1.0 Ta = -20 ºC to +70 ºC 1800 - 2000 MHz 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. +2.0/ -2.0 Max. 1 dB Compression (dBm) Output Intercept point 3rd Order 2nd Order Power Vdc mA 1.5 -35 1.5:1 1.5:1 1.5:1 Max. 1.5:1 Max. +33 +32 Min. +47 +45 Min. 15 950 Legend + 25 ºC Typical Performance Data Gain (dB) Reverse Isolation (dB) -10 27 -20 26 25 -30 50 49 48 -40 47 24 -50 46 23 22 1800 -60 45 28 1850 1900 2000 1950 -70 1800 1900 1850 1 dB Comp. (dBm) 37 36 35 2000 1950 + 70 ºC - - - - - - -20 ºC 3rd order intermodulation distortion (dBm) 44 1800 1900 1850 1950 2000 Input/Output VSWR +25 ºC 1.6 34 33 1.5 1.4 1.3 Input 1.2 32 1.1 Output 1.0 31 1800 1900 1850 1950 2000 1800 1850 1900 1950 2000 Linear S-Parameters Data FREQ. MHz – – S11– – dB Ang – – S21– – dB Ang – – S12– – dB Ang – – S22– – dB Ang ================================================================== 1800 -46.9 114.9 24.0 -20.8 87.5 -68.2 -23.1 25.4 94.5 1825 -46.6 24.1 -20.4 73.4 -91.0 -26.4 -77.5 72.7 1850 -47.0 24.3 -19.8 57.0 -113.9 -26.4 -120.6 61.4 1875 -46.3 24.4 -19.0 38.3 -137.1 -24.5 -138.3 42.1 1900 -45.4 24.5 -18.1 18.6 -160.8 -24.0 -153.9 13.4 1925 -45.6 24.5 -17.2 -2.2 175.3 -20.9 -167.2 -2.9 1950 -45.5 24.4 -16.4 -22.5 151.1 -18.9 179.3 -16.8 1975 -45.9 24.3 -15.7 -42.0 126.8 -18.0 171.1 -43.9 2000 -46.4 24.0 -15.0 -59.7 102.7 -17.3 162.0 2707 Black Lake Place, Philadelphia, PA 19154 TEL 215-464-4000 · · · · FAX 215-464-4001 03/11/05