6

RF Device Data

Freescale Semiconductor

MMG3003NT1

50 OHM APPLICATION CIRCUIT: 40-800 MHz

Figure 14. 50 Ohm Test Circuit Schematic

Figure 15. S21, S11 and S22 versus Frequency

800

−30

30

0

f, FREQUENCY (MHz)

S22

200

400

600

20

10

0

−10

−20

Figure 16. 50 Ohm Test Circuit Component Layout

C1

L1

C2

R1

C5

C4

C3

Z1

0.347″ x 0.058″ Microstrip

Z2

0.575″ x 0.058″ Microstrip

Z3

0.172″ x 0.058″ Microstrip

Z4

0.403″ x 0.058″ Microstrip

Z5

0.286″ x 0.058″ Microstrip

Z6

0.061″ x 0.058″ Microstrip

PCB

S21

S11

RF

OUTPUT

RF

INPUT

C3

C4

C5

Z1

Z2

C1

Z5

Z6

C2

R1

L1

Z4

Z3

DUT

MMG30XX

Rev 2

Table 8. 50 Ohm Test Circuit Component Designations and Values

Part

Description

Part Number

Manufacturer

C1, C2, C4

0.01 μF Chip Capacitors

C0603C103J5RAC

Kemet

C3

68 pF Chip Capacitor

C0805C680J5RAC

Kemet

2.7 pF Chip Capacitor

12105J2R7BS

AVX

L1

470 nH Chip Inductor

BK2125HM471-T

Taiyo Yuden

R1

7.5 W Chip Resistor

RK73B2ATTE7R5J

KOA Speer

1. Tuning capacitor: Capacitor value and location on the transmission line are varied for different frequencies.

Table 9. Supply Voltage versus R1 Values

Supply Voltage

7

8

9

10

11

12

V

R1 Value

4.4

10

15.6

21

27

32

Ω