SD2931-10 Datasheet, PDF (8/10 Pages) STMicroelectronics – RF POWER TRANSISTORS HF/VHF/UHF N-CHANNEL MOSFETs

SD2931-10
30 MHz Test Circuit Schematic (Engineering Test Circuit)
30 MHz Test Circuit Component Part List
T1
9:1 Transformer, 25 ohm Flexible Coax with extra shield .090 OD 15” Long
T2
1:4 Transformer, 50 ohm Flexible Coax .225 OD 15” Long
FB1
Toroid 1.7” OD .30” ID 220µ 4Turns
FB2
Surface Mount EMI Shield Bead
FB3
Toroid 1.7” OD .300” ID 220µ 3Turns
RFC1
PCB
Toroid 0.5” OD 0.30” ID 125µ 4Turns 12 awg wire
0.62” Woven Fiberglass, 1 oz. Copper, 2 Sides, εr = 2.55
R1, R3
1 K ohm 1 W Chip Resistor
R2
680 ohm 3W Wirewound Resistor
C1,C4,C6,C7,C8,C9,
C11,C12,C13
0.1 µF ATC Chip Cap
C2,C3
750 pF ATC Chip Cap
C5
470 pF ATC Chip Cap
C10
10 µF 63 V Electrolytic Capacitor
C14
100 µF 63 V Electrolytic Capacitor
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