MRF9085LR3 MRF9085LSR3

4

MOTOROLA RF DEVICE DATA

Figure 1. 865-895 MHz Broadband Test Circuit Schematic

RF

INPUT

RF

OUTPUT

Z1

Z2

C1

C15

B1

+

Z3

Z4

DUT

C19

B3

C16

+

L2

Z11

Z12

Z16

B1, B2, B3

Short Ferrite Beads, Surface Mount

C1, C9, C15, C16

47 pF Chip Capacitors, B Case , ATC

C3

5.6 pF Chip Capacitor, B Case, ATC

C4, C13

0.8 - 8.0 Variable Capacitors, Gigatrim

C5, C6, C12

8.2 pF Chip Capacitors, B Case, ATC

C7, C17, C18, C19

10 mF, 35 V Tantalum Surface Mount Capacitors, Kemet

C8

20 K pF Chip Capacitor, B Case, ATC

C10, C11

16 pF Chip Capacitors, B Case, ATC

C14

0.6 - 4.5 Variable Capacitor, Gigatrim

L1

7.15 nH Inductor, Coilcraft

L2

17.5 nH Inductor, Coilcraft

N1, N2

N-Type Panel Mount, Stripline, M/A-Com

WB1, WB2

5 Mil BeCu Shim (0.225 x 0.525)

Z1

0.219″ x 0.080″ Microstrip

Z2

0.150″ x 0.080″ Microstrip

Z3

0.851″ x 0.080″ Microstrip

Z4

0.125″ x 0.220″ Microstrip

Z5

0.123″ x 0.220″ Microstrip

Z6

0.076″ x 0.220″ Microstrip

Z7

0.261″ x 0.220″ Microstrip

Z8

0.220″ x 0.630″ x 0.200″ Taper

Z9

0.240″ x 0.630″ Microstrip

Z10

0.060″ x 0.630″ Microstrip

Z11

0.067″ x 0.630″ Microstrip

Z12

0.233″ x 0.630″ Microstrip

Z13

0.630″ x 0.220″ x 0.200″ Taper

Z14

0.200″ x 0.220″ Microstrip

Z15

0.055″ x 0.220″ Microstrip

Z16

0.088″ x 0.220″ Microstrip

Z17

0.226″ x 0.220″ Microstrip

Z18

0.868″ x 0.080″ Microstrip

Z19

0.129″ x 0.080″ Microstrip

Z20

0.223″ x 0.080″ Microstrip

PCB

Arlon GX-0300-55-22, 30 mils

C11

Z17

Z20

Z7

C8

C9

L1

C6

C5

C10

C17

C13

Z10

C7

C18

B2

C3

C4

Z5

Z6

Z9

Z18

Z19

C14

Z13

Z8

Z14

C12

Z15

+

++

+

Figure 2. 865-895 MHz Broadband Test Circuit Component Layout

C1

C4

C3

C5

C7

C9

L1

B2

C8

B1

C12

C13

C14

C10

C6

C15

VGG

VDD

B3

C17

C19

C18

C16

L2

C11

MRF9085

Freescale Semiconductor, Inc.

For More Information On This Product,

Go to: www.freescale.com