MRF284LR1 MRF284LSR1

3

RF Device Data

Freescale Semiconductor

Figure 1. 1930-2000 MHz Broadband Test Circuit Schematic

RF

INPUT

RF

OUTPUT

Z12

Z1

Z2

Z3

Z4

C5

C1

C16

W1

R1

C3

+

C4

B1

R2

C6

B2

R3

C7

C2

Z5

L1

Z7

Z8

DUT

W3

R7

C17

+

C14

W2

R6

C12

B3

R5

C13

C15

L2

C10

Z11

C11

Z13

Z14

Z16

L3

Z17

Z11

0.155″ x 0.515″ Microstrip

Z12

0.120″ x 0.325″ Microstrip

Z13

0.150″ x 0.325″ Microstrip

Z14

0.010″ x 0.325″ Microstrip

Z15

0.505″ x 0.080″ Microstrip

Z16

0.865″ x 0.080″ Microstrip

Z17

0.525″ x 0.080″ Microstrip

PCB

Arlon GX0300-55-22, 0.030″,

Z6

R4

Z15

Z10

C8

Z9

C9

C18

+

Z1

0.530″ x 0.080″ Microstrip

Z2

0.255″ x 0.080″ Microstrip

Z3

0.600″ x 0.080″ Microstrip

Z4

0.525″ x 0.080″ Microstrip

Z5

0.015″ x 0.325″ Microstrip

Z6

0.085″ x 0.325″ Microstrip

Z7

0.165″ x 0.325″ Microstrip

Z8

0.110″ x 0.515″ Microstrip

Z9

0.095″ x 0.515″ Microstrip

Z10

0.050″ x 0.515″ Microstrip

Table 4. 1930-2000 MHz Broadband Test Circuit Component Designations and Values

Designators

Description

B1 - B3

Ferrite Beads, Round, Ferroxcube #56-590-65-3B

C1, C2, C8

0.8-8.0 pF Gigatrim Variable Capacitors, Johanson #27291SL

C3, C17

22 mF, 35 V Tantalum Surface Mount Chip Capacitors, Kemet #T491X226K035AS4394

C4, C14

0.1 mF Chip Capacitors, Kemet #CDR33BX104AKWS

C5

220 pF Chip Capacitor, ATC #100B221KP500X

C6, C12

1000 pF Chip Capacitors, ATC #100B102JCA50X

C7, C13

5.1 pF Chip Capacitors, ATC #100B5R1CCA500X

C9

1.2 pF Chip Capacitor, ATC #100B1R2CCA500X

C10

2.7 pF Chip Capacitor, ATC #100B2R7CCA500X

C11

0.6-4.5 pF Gigatrim Variable Capacitors, Johanson #27271SL

C15, C16

200 pF Chip Capacitors, ATC #100B201KP500X

C18

10 mF, 35 V Tantalum Surface Mount Chip Capacitor, Kemet #T495X106K035AS4394

L1, L2

4 Turns, #24 AWG, 0.120″ OD, 0.140″ Long, (12.5 nH), Coilcraft #A04T-5

L3

2 Turns, #24 AWG, 0.120″ OD, 0.140″ Long, (5.0 nH), Coilcraft #A02T-5

R1, R2, R3, R5, R6, R7

12 Ω, 1/4 W Chip Resistors, 0.08″ x 0.13″, Garrett Instruments #RM73B2B120JT

R4

560 kΩ, 1/4 W Chip Resistor, 0.08″ x 0.13″

W1, W2, W3

Solid Copper Buss Wire, 16 AWG

WS1, WS2

Beryllium Copper Wear Blocks 0.005″ x 0.250″ x 0.250″