TetraFET D2021UK ROHS COMPLIANT METAL GATE RF SILICON FET MECHANICAL DATA A D N 8 1 7 2 6 3 5 4 C B P GOLD METALLISED MULTI-PURPOSE SILICON DMOS RF FET 7.5W - 28V - 1GHz SINGLE ENDED H K FEATURES M L J E F * SIMPLIFIED AMPLIFIER DESIGN G SO8 PACKAGE PIN 1 - SOURCE PIN 2 - DRAIN PIN 3 - DRAIN PIN 4 - SOURCE Dim. A B C D E F G mm 4.06 5.08 1.27 0.51 3.56 4.06 1.65 H 0.76 J K L M N P * SUITABLE FOR BROAD BAND APPLICATIONS PIN 5 - SOURCE PIN 6 - GATE PIN 7 - GATE PIN 8 - SOURCE 0.51 1.02 45 0 7 0.20 2.18 4.57 Tol. 0.08 0.08 0.08 0.08 0.08 0.08 0.08 +0.25 -0.00 Min. Max. Max. Min. Max. 0.08 Max. 0.08 Inches 0.160 0.200 0.050 0.020 0.140 0.160 0.065 0.030 0.020 0.040 45 0 7 0.008 0.086 0.180 Tol. 0.003 0.003 0.003 0.003 0.003 0.003 0.003 +0.010 -0.000 Min. Max. Max. Min. Max. 0.003 Max. 0.003 * LOW Crss * SIMPLE BIAS CIRCUITS * LOW NOISE * HIGH GAIN - 13 dB MINIMUM APPLICATIONS * VHF/UHF COMMUNICATIONS from DC to 1 GHz ABSOLUTE MAXIMUM RATINGS (Tcase = 25C 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 35W 65V 20V 3A -65 to 150C 200C Semelab Plc reserves the right to change test conditions, parameter limits and package dimensions without notice. Information furnished by Semelab is believed to be both accurate and reliable at the time of going to press. However Semelab assumes no responsibility for any errors or omissions discovered in its use. Semelab encourages customers to verify that datasheets are current before placing orders. Semelab plc. Telephone +44(0)1455 556565. Fax +44(0)1455 552612. Website: http://www.semelab.co.uk E-mail: sales@semelab.co.uk Document Number 6906 Issue 1 D2021UK ELECTRICAL CHARACTERISTICS (Tcase = 25C unless otherwise stated) Parameter Test Conditions Min. BVDSS Drain-Source Typ. Max. Unit V VGS = 0 ID = 10mA VDS = 28V VGS = 0 3 mA VGS = 20V VDS = 0 1 A VGS(th) Gate Threshold Voltage* ID = 10mA VDS = VGS 7 V gfs Forward Transconductance* VDS = 10V ID = 0.6A GPS Common Source Power Gain PO = 7.5W Drain Efficiency VDS = 28V IDSS IGSS Breakdown Voltage Zero Gate Voltage Drain Current Gate Leakage Current VSWR Load Mismatch Tolerance IDQ = 0.3A f = 1GHz 65 1 0.54 S 13 dB 40 % 20:1 -- Ciss Input Capacitance VDS = 0 VGS = -5V f = 1MHz 36 pF Coss Output Capacitance VDS = 28V VGS = 0 f = 1MHz 18 pF Crss Reverse Transfer Capacitance VDS = 28V VGS = 0 f = 1MHz 1.5 pF * Pulse Test: Pulse Duration = 300 s , Duty Cycle 2% THERMAL DATA RTHj-case Thermal Resistance Junction - Case Max. 5C / W Semelab Plc reserves the right to change test conditions, parameter limits and package dimensions without notice. Information furnished by Semelab is believed to be both accurate and reliable at the time of going to press. However Semelab assumes no responsibility for any errors or omissions discovered in its use. Semelab encourages customers to verify that datasheets are current before placing orders. Semelab plc. Telephone +44(0)1455 556565. Fax +44(0)1455 552612. Website: http://www.semelab.co.uk E-mail: sales@semelab.co.uk Document Number 6906 Issue 1 D2021UK 20 50 18 45 16 Power added efficiency (%) 40 Gain (dB) 14 12 F= 1 GHz Idq= 0.3 A Vds= 28 V 10 8 6 Tuned for maximum gain at 7.5 W 4 Tuned for maximum power 35 30 F= 1 GHz Idq= 0.3 A Vds= 28 V 25 20 15 Tuned for maximum gain at 7.5W 10 Tuned for maximum power 2 5 0 0 0 2 4 6 8 10 12 14 0 2 4 6 8 10 12 14 Pout (W) Pout (W) Figure 1 Figure 2 Gain vs. Output Power. Power added efficiency vs. Output Power. 0 14 12 -10 10 IMD 3 (dBc) Pout (W) -20 8 F= 1 GHz Idq= 0.3 A Vds= 28 V 6 -30 F1=999.9MHz F2=1GHz Idq= 0.3 A Vds= 28 V -40 Tuned for maximum gain at 7.5 W 4 Tuned for maximum power Tuned for maximum gain at 7.5W -50 2 0 Tuned for maximum power -60 0 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 0 0.5 1 1.5 Pin (W) 2 2.5 3 3.5 4 4.5 PEP (W) Figure 3 Figure 4 Output Power vs. Input Power. IMD 3 vs. PEP Typical S Parameters ! # !Freq !MHz 100 200 300 400 500 600 700 800 900 1000 Vds=28V Idq=0.3A MHz S MA R 50 S11 mag 0.79 0.76 0.78 0.8 0.84 0.87 0.89 0.9 0.9 0.89 S21 ang -113 -141 -153 -162 -169 -175 -180 176 172 165 mag 16 8.1 5.3 3.6 2.8 2.1 1.6 1.2 1.1 1 ang 108 77 62 49 38 24 16 17 16 8 S12 mag 0.027 0.022 0.016 0.014 0.023 0.036 0.047 0.058 0.083 0.111 S22 ang 21 8 19 56 84 87 86 91 93 86 mag 0.6 0.59 0.66 0.71 0.75 0.79 0.82 0.83 0.84 0.86 ang -73 -102 -118 -130 -139 -147 -154 -164 -168 -172 Semelab Plc reserves the right to change test conditions, parameter limits and package dimensions without notice. Information furnished by Semelab is believed to be both accurate and reliable at the time of going to press. However Semelab assumes no responsibility for any errors or omissions discovered in its use. Semelab encourages customers to verify that datasheets are current before placing orders. Semelab plc. Telephone +44(0)1455 556565. Fax +44(0)1455 552612. Website: http://www.semelab.co.uk E-mail: sales@semelab.co.uk Document Number 6906 Issue 1 D2021UK 4.00 3.50 Drain Current (Amps) 3.00 VGS=13V VGS=12V VGS=11V VGS=10V VGS=9V VGS=8V VGS=7V VGS=6V VGS=5V VGS=4V 2.50 2.00 1.50 1.00 0.50 0.00 0 5 10 15 20 25 30 Drain Voltage (Volts) Figure 5 - Typical IV Characteristics. C, Capacitance (pF) 100 10 Ouput Capacitance Input Capacitance Reverse Transfer Capacitance 1 0.1 0 5 10 15 20 25 30 Vds, Drain to Source Voltage (V) Figure 6 - Typical CV Characteristics. Semelab Plc reserves the right to change test conditions, parameter limits and package dimensions without notice. Information furnished by Semelab is believed to be both accurate and reliable at the time of going to press. However Semelab assumes no responsibility for any errors or omissions discovered in its use. Semelab encourages customers to verify that datasheets are current before placing orders. Semelab plc. Telephone +44(0)1455 556565. Fax +44(0)1455 552612. Website: http://www.semelab.co.uk E-mail: sales@semelab.co.uk Document Number 6906 Issue 1 D2021UK +28V 22 L2 100uF 100nF Gate-Bias 100nF 10K L1 D2021UK 3.3K 30pF T1 T2 30pF T5 T3 T4 T6 1-16pF T7 1-16pF 10pF 1-16pF 1-16pF D2021UK 1GHz TEST FIXTURE Substrate 0.8mm PTFE/glass, Er=2.5 All microstrip lines W=2.2mm T1 3mm T2 28mm T3 18mm T4 6mm T5 10mm T6 14mm T7 35mm L1 8 turns 0.5mm dia enamelled copper wire, 3mm i.d. L2 1.5 turns 0.5mm enamelled copper wire on Siemens B62152A7 2 hole ferrite core Semelab Plc reserves the right to change test conditions, parameter limits and package dimensions without notice. Information furnished by Semelab is believed to be both accurate and reliable at the time of going to press. However Semelab assumes no responsibility for any errors or omissions discovered in its use. Semelab encourages customers to verify that datasheets are current before placing orders. Semelab plc. Telephone +44(0)1455 556565. Fax +44(0)1455 552612. Website: http://www.semelab.co.uk E-mail: sales@semelab.co.uk Document Number 6906 Issue 1