TetraFET D2012UK METAL GATE RF SILICON FET MECHANICAL DATA GOLD METALLISED MULTI-PURPOSE SILICON DMOS RF FET 10W – 28V – 1GHz SINGLE ENDED C 2 N (typ) 1 B A 3 D (2 pls) F (2 pls) H J FEATURES • SIMPLIFIED AMPLIFIER DESIGN M E I K G • SUITABLE FOR BROAD BAND APPLICATIONS DP PIN 1 SOURCE PIN 3 GATE PIN 2 DRAIN • LOW Crss • SIMPLE BIAS CIRCUITS DIM mm A 16.51 B 6.35 C 45° D 3.30 E 18.92 F 1.52 G 2.16 H 14.22 I 1.52 J 6.35 K 0.13 M 5.08 N 1.27 x 45° Tol. 0.25 0.13 5° 0.13 0.08 0.13 0.13 0.08 0.13 0.13 0.03 0.51 0.13 Inches 0.650 0.250 45° 0.130 0.745 0.060 0.085 0.560 0.060 0.250 0.005 0.200 0.050 x 45° Tol. 0.010 0.005 5° 0.005 0.003 0.005 0.005 0.003 0.005 0.005 0.001 0.020 0.005 • LOW NOISE • HIGH GAIN – 10 dB MINIMUM APPLICATIONS • VHF/UHF COMMUNICATIONS from 50 MHz to 2 GHz ABSOLUTE MAXIMUM RATINGS (Tcase = 25°C unless otherwise stated) PD BVDSS BVGSS ID(sat) Tstg Tj Semelab plc. Power Dissipation Drain – Source Breakdown Voltage Gate – Source Breakdown Voltage Drain Current Storage Temperature Maximum Operating Junction Temperature Telephone +44(0)1455 556565. Fax +44(0)1455 552612. E-mail: [email protected] Website: http://www.semelab.co.uk 42W 65V ±20V 4A –65 to 150°C 200°C Prelim. 12/00 D2012UK ELECTRICAL CHARACTERISTICS (Tcase = 25°C unless otherwise stated) Parameter Test Conditions Min. BVDSS Drain–Source Typ. Max. Unit V VGS = 0 ID = 10mA VDS = 28V VGS = 0 0.8 mA VGS = 20V VDS = 0 1 µA VGS(th) Gate Threshold Voltage* ID = 10mA VDS = VGS 7 V gfs Forward Transconductance* VDS = 10V ID = 0.8A GPS Common Source Power Gain PO = 10W η Drain Efficiency VDS = 28V IDSS IGSS Breakdown Voltage Zero Gate Voltage Drain Current Gate Leakage Current VSWR Load Mismatch Tolerance IDQ = 0.4A f = 1GHz 65 1 0.72 S 10 dB 40 % 20:1 — Ciss Input Capacitance VDS = 0 VGS = –5V f = 1MHz 48 pF Coss Output Capacitance VDS = 28V VGS = 0 24 pF Crss Reverse Transfer Capacitance VDS = 28V VGS = 0f = 1MHz 2 pF * Pulse Test: f = 1MHz Pulse Duration = 300 µs , 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. E-mail: [email protected] Website: http://www.semelab.co.uk Max. 4.2°C / W Prelim. 12/00 D2012UK 3RXW : 3RXW : I 0+] ,GT $ 9GV 9 *DLQ G% 3LQ: 3RXW JDLQ Figure 1 Output Power and Gain vs. Input Power (IILFLHQF\ I 0+] ,GT $ 9GV 9 3LQ: 3RXW (IILFLHQF\ Figure 2 Output Power and Efficiency vs. Input Power OPTIMUM SOURCE AND LOAD IMPEDANCE ,0' G%F I 0+] I 0+] 9GV 9 ,GT $ 3RXW:3(3 Frequency MHz ZS Ω ZL Ω 1000 5.0 - j7.2 2.4 - j7.1 ,0' Figure 3 Output Power and Efficiency vs. Input Power Typical S Parameters ! # !Freq !MHz 100 200 300 400 500 600 700 800 900 1000 Semelab plc. Vds=28V, Idq=0.8A MHz S MA R 50 S11 mag 0.841 0.871 0.891 0.902 0.923 0.933 0.955 0.955 0.966 0.955 ang -122 -146 -156 -163 -170 -174 -175 -177 179 177 S21 mag 24.547 11.482 6.683 4.365 3.055 2.113 1.758 1.413 1.161 0.944 ang 98 69 52 40 27 22 19 12 5 3 S12 mag ang 0.01318 13 0.01 0 0.00653 10 0.00596 49 0.00891 71 0.01349 79 0.01862 85 0.02344 82 0.02851 80 0.03236 80 Telephone +44(0)1455 556565. Fax +44(0)1455 552612. E-mail: [email protected] Website: http://www.semelab.co.uk S22 mag 0.49 0.61 0.708 0.767 0.813 0.851 0.881 0.902 0.902 0.902 ang -94 -125 -137 -146 -155 -165 -166 -170 -177 -179 Prelim. 12/00 D2012UK 1 0 1 n F G a te -B ia s L 2 1 0 K 3 .3 K 3 0 p F 1 n F 6 .8 n F 1 0 n F T 1 1 -1 0 p F + 2 8 V 1 -1 0 p F 6 x 3 m m c o n ta c t p a d D 2 0 1 2 U K T 2 L 1 6 x 3 m m c o n ta c t p a d T 3 1 0 p F 1 0 0 u F T 4 1 -1 0 p F T 5 3 0 p F 8 .2 p F 1GHz Test Fixture Substrate 0.8mm PTFE/glass, Er = 2.5 All microstrip lines W = 2.2mm T1 35mm T2 15mm T3 4mm T4 14mm T5 32mm L1 7.5 turns 24swg enamelled copper wire, 3mm i.d. L2 1.5 turns 24swg enamelled copper wire on ferrite core Semelab plc. Telephone +44(0)1455 556565. Fax +44(0)1455 552612. E-mail: [email protected] Website: http://www.semelab.co.uk Prelim. 12/00