5

MRF166 MRF166C

MOTOROLA RF DEVICE DATA

VDS, DRAIN–SOURCE (VOLTS)

35

30

25

20

15

10

5

0

0.8

Pin, INPUT POWER (WATTS)

Figure 8. Output Power versus Input Power

0.7

0.6

0.5

0.4

0.3

0.2

0.1

0

500 MHz

f = 400 MHz

VDS = 28 V

IDQ = 100 mA

16

14

12

10

8

6

4

2

0

0.8

Pin, INPUT POWER (WATTS)

0.7

0.6

0.5

0.4

0.3

0.2

0.1

0

f = 400 MHz

VDS = 13.5 V

IDQ = 100 mA

Figure 9. Output Power versus Input Power

32

28

24

20

16

12

8

4

0

28

Figure 10. Output Power versus Voltage

26

24

22

20

18

16

14

12

Pin = 0.8 W

0.4 W

0.2 W

f = 400 MHz

IDQ = 100 mA

MRF166C

Figure 11. Series Equivalent Input and Output Impedance

f = 500 MHz

400

400

ZOL*

Zin

VDD = 28 V, IDQ = 100 mA

Zo = 50 Ω

200

100

200

100

f = 500 MHz

ZOL* = Conjugate of the optimum load

impedance into which the device output

operates at a given output power, voltage and

frequency.

f

MHz

Zin

OHMS

ZOL*

OHMS

100

200

400

500

11.0 – j21.0

4.20 – j12.6

1.90 – j5.80

1.50 – j4.10

8.50 – j10.0

6.00 – j9.00

4.50 – j6.70

4.20 – j5.40

(Pout = 20 W)