Figure 2. Output Power versus Input Power

Figure 3. Output Power versus Input Power

Figure 4. Output Power versus Supply Voltage

Figure 5. Output Power versus Supply Voltage

CLASS C

CLASS C

Figure 6. Series Equivalent Input/Output Impedance

Figure 7. Class AB Output Power versus

Input Power

140

120

100

80

60

40

20

0

20

18

16

14

12

10

8

6

4

2

0

Pin, INPUT POWER (WATTS)

80

60

40

20

0

20

18

16

14

12

10

8

6

4

2

0

Pin, INPUT POWER (WATTS)

10

70

50

30

120

100

80

60

40

20

12

VCC, SUPPLY VOLTAGE (VOLTS)

16

20

24

28

120

100

80

60

40

20

12

VCC, SUPPLY VOLTAGE (VOLTS)

16

20

24

28

140

120

100

80

60

40

20

0

20

18

16

14

12

10

8

6

4

2

0

Pin, INPUT POWER (WATTS)

f = 100 MHz

225 MHz

400 MHz

500 MHz

225 MHz

400 MHz

500 MHz

8 W

Pin = 10 W

Pin = 16 W

12 W

8 W

f = 500 MHz

VCC = 28 V

ICQ = 200 mA

6 W

f = 225 MHz

f = 500 MHz

VCC = 28 V

VCC = 13.5 V

f = 100 MHz

NOTE: Zin & ZOL* are given from base–to–base

Zin

4

ZOL*

225

VCC = 28 V, Pout = 100 W

f = 100 MHz

400

225

500

400

2

2

4

6

8

2

4

6

8

500

f = 100 MHz

Zo = 20 Ω

ZOL* = Conjugate of the optimum load impedance

f MHz

Zin

ZOL*

100

225

400

500

0.85 + j0

0.58 + j2.6

3.00 + j5.9

4.80 + j3.0

7.8 – j5.6

5.0 – j3.2

3.2 – j0.6

2.9 + j1.2

3

REV 7