Communication Concepts 2M 1KW Amateur Application Note User Manual

Page 2

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2

RF Reference Design Data

Freescale Semiconductor

MRFE6VP61K25H MRFE6VP61K25HS 2 Meter Amateur

PERFORMANCE AND RF MEASUREMENTS

Measurement is done using a CW (single tone) signal

unless specified otherwise.

Data was taken using an automated characterization

system, ensuring repeatable measurements.

The reference design was tuned with a trade--off between

linearity and efficiency. Other tuning optimizations are
possible.

Table 1. 50 V Drain Supply, IDQ = 2500 mA (for Class AB, linear operation)

Freq.

(MHz)

P

in

(W)

P

out

(W)

Gain

(dB)

IRL

(dB)

Eff.
(%)

V

DD

(v)

I

DD

(A)

144

0.1

73

28.6

--17.6

19.6

50

7.5

144

0.3

178

28.5

--18.1

31.8

50

11.2

144

0.5

392

28.9

--17.7

48.0

50

16.3

144

0.7

573

28.8

--17.1

57.8

50

19.8

144

1.0

724

28.6

--16.0

64.2

50

22.5

144 P1dB

1.5

920

27.9

--14.2

70.7

50

26.0

144

1.75

1003

27.6

--13.4

73.0

50

27.4

144

2.25

1135

27.0

--12.1

76.4

50

29.7

144

2.5

1201

26.8

--11.3

78.0

50

31.0

144

3.0

1250

26.2

--11.3

78.8

50

31.7

144 P3dB

3.5

1311

25.7

--10.9

79.9

50

32.8

Table 2. 50 V Drain Supply, IDQ = 200 mA (for Class C, non--linear operation, without board retuning)

Freq.

(MHz)

P

in

(W)

P

out

(W)

Gain

(dB)

IRL

(dB)

Eff.
(%)

V

DD

(v)

I

DD

(A)

144

0.1

19

22.9

--14.5

11.6

50

3.3

144

0.3

79

25.0

--16.2

23.6

50

6.8

144

0.5

271

27.3

--16.7

42.7

50

12.7

144

0.8

372

27.0

--17.5

49.8

50

14.9

144

1.0

513

27.1

--17.4

57.6

50

17.8

144

1.5

771

27.1

--15.6

68.2

50

22.6

144

1.7

821

26.7

--15.3

69.8

50

23.5

144

2.2

975

26.4

--13.8

74.2

50

26.2

144

2.5

1059

26.3

--12.8

76.3

50

27.7

144

3.0

1118

25.7

--12.6

77.8

50

28.7

144

3.5

1195

25.3

--12.0

79.5

50

30.0

144

4.0

1255

25.0

--11.6

80.7

50

31.0

144

4.5

1301

24.6

--11.4

81.6

50

31.8

144

5.0

1339

24.3

--11.2

82.4

50

32.5

Table 3. 43 V Drain Supply, IDQ = 200 mA (for Class C, non--linear operation, without board retuning)

Freq.

(MHz)

P

in

(W)

P

out

(W)

Gain

(dB)

IRL

(dB)

Eff.
(%)

V

DD

(v)

I

DD

(A)

144

0.1

17

22.5

--14.2

12.9

43

3.2

144

0.3

74

24.8

--16.2

26.9

43

6.5

144

0.5

254

27.1

--16.7

48.4

43

12.2

144

0.8

337

26.5

--17.5

55.1

43

14.2

144

1.0

459

26.6

--16.9

62.8

43

17.0

144

1.5

640

26.3

--14.7

71.2

43

20.9

144

1.8

708

26.1

--13.8

73.8

43

22.3

144

2.3

797

25.5

--12.9

76.8

43

24.1

144

2.5

752

24.8

--14.3

75.3

43

23.2

144

3.0

900

24.8

--11.8

79.7

43

26.2

144

3.5

953

24.3

--11.4

81.1

43

27.3

144

4.0

991

24.0

--11.1

81.9

43

28.1

144

4.5

1038

23.6

--11.0

83.1

43

29.0

144

5.0

1060

23.3

--10.9

83.5

43

29.5

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