SD2931-10_03 ST Microelectronics, Inc., SD2931-10_03 Datasheet - Page 12

• Manufacturer Part Number: SD2931-10_03
• Description: RF Power Transistors Hf/vhf/uhf N-channel Mosfets
• Manufacturer: ST Microelectronics, Inc.

Test circuit 30 MHz
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Test circuit 30 MHz
Figure 22. 30 MHz test circuit schematic (engineering test circuit)
Figure 23. 30 MHz test circuit component part list
C1,C4,C6,C7,C8,C
C11,C12,C13
Symbol
R1, R3
C2,C3
RFC1
PCB
FB1
FB2
FB3
C10
C14
R2
C5
T1
T2
9,
9:1 transformer, 25 Ω flexible coax with extra shield .090 OD 15” long
1:4 transformer, 50 Ω flexible coax .225 OD 15” long
Toroid 1.7” OD .30” ID 220 µ 4 turns
Surface mount EMI shield bead
Toroid 1.7” OD .300” ID 220µ 3 turns
Toroid 0.5” OD 0.30” ID 125µ 4 turns 12 awg wire
0.62” Woven Fiberglass, 1 oz. Copper, 2 Sides, εr = 2.55
1 KΩ 1 W chip resistor
680 Ω 3 W wirewound resistor
0.1 µF ATC chip cap
750 pF ATC chip cap
470 pF ATC chip cap
10 µF 63 V electrolytic capacitor
100 µF 63 V electrolytic capacitor
Description
SD2931-10