SD2932 datasheet(14/22 Pages) STMICROELECTRONICS

Part #	SD2932

Description	RF power transistors HF/VHF/UHF N-channel MOSFETs

PDF	22 Pages

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Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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14 / 22 page

Test circuit 175 - 230 MHz

SD2932

14/22

Doc ID 6876 Rev 8

Test circuit 175 - 230 MHz

Figure 23.

175 - 230 MHz test circuit layout (engineering fixture)

Table 9.

175 - 230 MHz circuit layout component part list

Component

Description

PCB

1/32” woven fiberglass 0.030 Cu, sides,

εr = 4.8

50 Ohm flexible coax cable OD 0.06”, 3” long. ferrite Core NEOSIDE

T2,T3

9:1transformer, 16.5 Ohm flexible coax cable 0.1”, 3” Long

T4,T5

4:1 transformer, 25 Ohm flexible coax cable OD 0.06”, 5” Long

8.2 pF ceramic cap

C2,C3

100 pF ceramic cap

2 - 18 pF chip cap

47 pF ceramic cap

C6,C11

47 nF ceramic cap

56 pF ATC chip cap

C8,C9,C13

470 pF ATC chip cap

C10

100 nF ceramic cap

C12

2 x 330 nF / 50 V cap

C14

10 nF / 63 V electrolityc cap

R1,R3

47 Ohm resistor

6.8 K Ohm chip resistor

SD2932 Datasheet(PDF) 14 Page - STMicroelectronics