TetraFET D1012UK METAL GATE RF SILICON FET MECHANICAL DATA GOLD METALLISED MULTI-PURPOSE SILICON DMOS RF FET 100W – 28V – 500MHz PUSH–PULL B (4 pls) C G (typ) 2 3 1 A E D 5 4 I F FEATURES • SIMPLIFIED AMPLIFIER DESIGN N H M J K • SUITABLE FOR BROAD BAND APPLICATIONS DH PIN 1 SOURCE (COMMON) PIN 2 DRAIN 1 • LOW Crss PIN 3 DRAIN 2 PIN 4 GATE 2 • SIMPLE BIAS CIRCUITS PIN 5 GATE 1 DIM A B C D E F G H I J K M N • LOW NOISE mm 13.97 5.72 45° 9.78 1.65R 23.75 1.52R 30.48 19.17 0.13 2.54 1.52 5.08 Tol. 0.26 0.13 5° 0.13 0.13 0.13 0.13 0.13 0.26 0.02 0.13 0.13 0.50 Inches 0.550 0.225 45° 0.385 0.065R 0.935 0.060R 1.200 0.755 0.005 0.100 0.060 0.200 Tol. 0.010 0.005 5° 0.005 0.005 0.005 0.005 0.005 0.010 0.001 0.005 0.005 0.020 • HIGH GAIN – 10 dB MINIMUM APPLICATIONS • HF/VHF/UHF COMMUNICATIONS from 1 MHz to 500 MHz ABSOLUTE MAXIMUM RATINGS (Tcase = 25°C unless otherwise stated) PD BVDSS BVGSS ID(sat) Tstg Tj Power Dissipation Drain – Source Breakdown Voltage * Gate – Source Breakdown Voltage * Drain Current * Storage Temperature Maximum Operating Junction Temperature 290W 70V ±20V 15A –65 to 150°C 200°C * Per Side Semelab plc. Telephone +44(0)1455 556565. Fax +44(0)1455 552612. Website: http://www.semelab.co.uk E-mail: [email protected] Prelim. 11/99 D1012UK ELECTRICAL CHARACTERISTICS (Tcase = 25°C unless otherwise stated) Parameter Test Conditions Min. Typ. Max. Unit PER SIDE BVDSS Drain–Source V VGS = 0 ID = 100mA VDS = 28V VGS = 0 3 mA VGS = 20V VDS = 0 1 mA VGS(th) Gate Threshold Voltage* ID = 10mA VDS = VGS 7 V gfs VDS = 10V ID = 3A IDSS IGSS Breakdown Voltage Zero Gate Voltage Drain Current Gate Leakage Current Forward Transconductance* 70 1 2.4 S 10 dB 50 % 20:1 — TOTAL DEVICE GPS Common Source Power Gain PO = 100W Drain Efficiency VDS = 28V VSWR Load Mismatch Tolerance f = 500MHz h IDQ = 1.2A PER SIDE Ciss Input Capacitance VDS = 28V VGS = –5V f = 1MHz 180 pF Coss Output Capacitance VDS = 28V VGS = 0 f = 1MHz 90 pF Crss Reverse Transfer Capacitance VDS = 28V VGS = 0 f = 1MHz 7.5 pF * Pulse Test: Pulse Duration = 300 ms , Duty Cycle £ 2% HAZARDOUS MATERIAL WARNING The ceramic portion of the device between leads and metal flange is beryllium oxide. Beryllium oxide dust is highly toxic and care must be taken during handling and mounting to avoid damage to this area. THESE DEVICES MUST NEVER BE THROWN AWAY WITH GENERAL INDUSTRIAL OR DOMESTIC WASTE. THERMAL DATA RTHj–case Semelab plc. Thermal Resistance Junction – Case Telephone +44(0)1455 556565. Fax +44(0)1455 552612. Website: http://www.semelab.co.uk E-mail: [email protected] Max. 0.6°C / W Prelim. 11/99 D1012UK 1 4 0 7 0 1 2 0 6 0 1 0 0 5 0 P o u t 8 0 4 0 D r a in E ffic ie n c y W 6 0 3 0 % f = 5 0 0 M H z 4 0 I d q 2 0 0 2 4 6 8 P in 1 0 W 1 2 1 4 1 4 1 2 0 1 3 1 0 0 1 2 P o u t 8 0 1 1 G a in W 6 0 1 0 d B 2 0 4 0 1 0 2 0 = 1 .2 A V d s = 2 8 V 0 1 4 0 0 0 f = 5 0 0 M H z Id q = 1 .2 A V d s = 2 8 V P o u t D r a in E ffic ie n c y 0 2 4 6 8 P in Figure 1 - Power Output and Efficiency vs. Power Input. 9 8 1 0 1 2 1 4 7 W Figure 2 - Power Output & Gain vs. Power Input. -1 5 D1012UK -2 0 OPTIMUM SOURCE AND LOAD IMPEDANCE -2 5 IM D 3 d B c -3 0 f1 f2 = 5 = 5 V d s = Id q = 1 -3 5 -4 0 -4 5 0 2 0 4 0 6 0 P o u t 8 0 W 1 0 0 0 0 0 0 2 8 .2 .0 M H z .1 M H z V ZS ZL 500 2.0 - j2.2 2.6 - j0.6 W W N.B. Impedances measured terminal to terminal A 1 2 0 Frequency MHz 1 4 0 P E P Figure 3 - IMD vs. Output Power. Semelab plc. Telephone +44(0)1455 556565. Fax +44(0)1455 552612. Website: http://www.semelab.co.uk E-mail: [email protected] Prelim. 11/99 D1012UK 1 5 + 2 8 V G a te - B ia s 1 k 1 K 1 0 0 n F L 2 1 n F L 1 1 0 0 n F 8 x 3 m m c o n ta c t p a d T 1 1 0 0 u F D 1 0 1 2 U K 8 x 3 m m c o n ta c t p a d 2 2 K 6 2 0 p F 2 -1 8 p F T 4 T 2 6 2 0 p F 1 5 p F 1 -1 4 p F 1 -1 4 p F 2 0 p F T 6 T 3 6 2 0 p F 1 -1 0 p F T 5 8 x 3 m m c o n ta c t p a d 6 2 0 p F D 1 0 1 2 U K 8 x 3 m m c o n ta c t p a d D1012UK 500MHz TEST FIXTURE T1,6 T2,3,4,5 L1 L2 Semelab plc. 65mm 75mm 6 turns 8.5 turns 50 15 21 19 Ohm UT85 semi-rigid coax Ohm UT85-15 semi-rigid coax swg enamelled copper wire, 3mm i.d. swg enamelled copper wire on Fair-Rite FT82-43 core Telephone +44(0)1455 556565. Fax +44(0)1455 552612. Website: http://www.semelab.co.uk E-mail: [email protected] Prelim. 11/99