4 Test Circuit

SD2942

10/14

Table 6.

175 MHz Test Circuit Component Part List

Symbol

Description

R1,R2,R5,R6

470

Ω 1 W, Surface Mount Chip Resistor

R3,R4

360

Ω 0.5 W, Carbon Comp. Axial Lead Resistor or Equivalent

R7,R8

560

Ω 2 W, Resistor Two Turn Wire Air-Wound Axial Lead Resistor

R9,R10

20 K

Ω 3.09 W, 10 Turn Wirewound Precision Potentiometer

C1,C4

680 pF ATC 130B Surface Mount Ceramic Chip Capacitor

C2,C3,C7,C8,C17,C19,C20,C21

10000 pF ATC 200B Surface Mount Ceramic Chip Capacitor

C5

75 pF ATC 100B Surface Mount Ceramic Chip Capacitor

C6

ST40 25 pF - 115 pF Miniature variable Trimmer

C9,C10

47 pF ATC 100B Surface Mount Ceramic Chip Capacitor

C11,C12, C13

43 pF ATC 100B Surface Mount Ceramic Chip Capacitor

C14,C15,C24,C25

1200 pF ATC 700B Surface Mount Ceramic Chip Capacitor

C16,C18

470 pF ATC 700B Surface Mount Ceramic Chip Capacitor

C22,C23

0.1

µF / 500 V Surface Mount Ceramic Chip Capacitor

C26,C27

0.01

µF / 500 V Surface Mount Ceramic Chip Capacitor

C28

10

µF / 63 Aluminum Electrolytic Axial Lead Capacitor

B1

50

Ω RG316 O.D 0.076[1.93] L = 11.80[299.72] Flexible Coaxial Cable 4

Turns thru Fair-rite Bead

B2

50

Ω RG-142B O.D 0.165[4.19] L = 11.80[299.72] Flexible Coaxial Cable

T1

R.F. Transformer 4:1, 25

Ω O.D RG316-25 O.D 0.080[2.03] L = 5.90[149.86]

Flexible Coaxial Cable 2 Turns thru Fair-rite Multi-Aperture Core

T2

R.F. Transformer 1:4, 25

Ω Semi-rigid Coaxial Cable O.D. 0.141[3.58] L =

5.90[149.86]

L1

Inductor

λ 1/4 Wave 50 Ω O.D 0.165[4.19] L = 11.80 [299.72] Flexible Coaxial

Cable 2 Turns thru Fair-rite Bead

FB1,FB5

Shield Bead

FB2,FB6

Multi-aperture Core

FB3

Multilayer Ferrite Chip Bead (Surface Mount)

FB4

Surface Mount Emi Shield Bead

PCB

Woven Glass Reinforced PTFE Microwave Laminate 0.06”, 1 oz EDCu, Both

sides,

εr = 2.55