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| polyfet rf devices General Description Silicon VDMOS and LDMOS transistors designed specifically for broadband RF applications. Suitable for Military Radios, Cellular and Paging Amplifier Base Stations, Broadcast FM/AM, MRI, Laser Driver and others. "Polyfet" process features gold metal for greatly extended lifetime. Low output capacitance and high Ft enhance broadband performance TM F1280 PATENTED GOLD METALIZED SILICON GATE ENHANCEMENT MODE RF POWER VDMOS TRANSISTOR 80 Watts Single Ended Package Style AT HIGH EFFICIENCY, LINEAR, HIGH GAIN, LOW NOISE ABSOLUTE MAXIMUM RATINGS (TC = 25 C) Total Device Dissipation 190 Watts Junction to Case Thermal Resistance 0.9 o C/W Maximum Junction Temperature 200 o C Storage Temperature DC Drain Current Drain to Gate Voltage 50 V Drain to Source Voltage 50 V Gate to Source Voltage 30V o -65 o C to 150o C 12 A RF CHARACTERISTICS ( SYMBOL Gps PARAMETER Common Source Power Gai Drain Efficiency Load Mismatch Toleranc MIN 10 60 TYP 80WATTS OUTPUT ) MAX UNITS dB % 20:1 Relative TEST CONDITIONS Idq = 2.4 A, Vds = 12.5 V, F = 175 MHz Idq = 2.4 A, Vds = 12.5 V, F = 175 MHz Idq = 2.4 A, Vds = 12.5 V, F = 175 MHz VSWR ELECTRICAL CHARACTERISTICS (EACH SIDE) SYMBOL Bvdss Idss Igss Vgs gM Rdson Idsat Ciss Crss Coss PARAMETER Drain Breakdown Voltag Zero Bias Drain Curren Gate Leakage Curren Gate Bias for Drain Curren Forward Transconductanc Saturation Resistanc Saturation Curren Common Source Input Capacitanc Common Source Feedback Capacitanc Common Source Output Capacitanc 1 4.8 0.15 45 240 36 180 MIN 40 6 1 7 TYP MAX UNITS V mA uA V Mho Ohm Amp pF pF pF TEST CONDITIONS Ids = 0.3 A, Vgs = 0V Vgs = 0V Vgs = 30V Vgs = Vds Vds = 12.5 V, Vds = 0 V, Ids = 0.6 A, Vds = 10V, Vgs = 5V Vgs = 20V, Ids = 48 A Vgs = 20V, Vds = 10V Vds = 12.5 V, Vgs = 0V, F = 1 MHz Vds = 12.5 V, Vgs = 0V, F = 1 MHz Vds = 12.5 V, Vgs = 0V, F = 1 MHz POLYFET RF DEVICES REVISION 8/1/97 1110 Avenida Acaso, Camarillo, CA 93012 TEL:(805) 484-4210 FAX:(805) 484-3393 EMAIL:Sales@polyfet.com URL:www.polyfet.com F1280 POUT VS PIN GRAPH F1280 POUT VS PIN F=175 MHZ; IDQ=2.4A; VDS=12.5V 90 80 70 60 50 40 30 20 10 0 0 2 4 6 8 10 POUT CAPACITANCE VS VOLTAGE F1C 6DIE CAPACITANCE 17.00 16.00 15.00 14.00 13.00 1000 Coss 100 Ciss 12.00 Crss Efficiency = 65% 11.00 10.00 9.00 8.00 12 GAIN 10 0 5 10 15 VDS IN VOLTS 20 25 30 PIN IN WATTS IV CURVE F1C 6 DIE IV CURVE 60 100 ID AND GM VS VGS F1C 6 DICE ID & GM VS VG Id 50 40 10 30 20 1 Gm 10 0 0 2 4 6 8 10 Vds in Volts Vg = 2V Vg = 4V Vg = 6V Vg = 8V Vg = 10V Vg = 12V 0.1 12 14 16 18 20 0 2 4 6 8 10 Vgs in Volts GM ID 12 14 16 18 20 S11 AND S22 SMITH CHART PACKAGE DIMENSIONS IN INCHES POLYFET RF DEVICES REVISION 8/1/97 1110 Avenida Acaso, Camarillo, CA 93012 TEL:(805) 484-4210 FAX:(805) 484-3393 EMAIL:Sales@polyfet.com URL:www.polyfet.com |
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