Communication Concepts 2M 1KW Amateur Application Note User Manual
Page 2

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