Материал: mrf284rev3
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TYPICAL CHARACTERISTICS |
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3 |
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100 |
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Tflange = 75°C |
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C |
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(Adc)CURRENTDRAIN |
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(pF)CAPACITANCEC, |
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iss |
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2 |
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Tflange = 100°C |
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Coss |
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10 |
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1 |
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D |
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I |
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TJ = 175°C |
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Crss |
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0 |
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1 |
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16 |
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24 |
28 |
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28 |
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VDD, DRAIN SUPPLY VOLTAGE (Vdc) |
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VDS, DRAIN SOURCE VOLTAGE (VOLTS) |
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Figure 9. DC Safe Operating Area |
Figure 10. Capacitance versus |
Drain Source Voltage
Pout , OUTPUT POWER (dBm)
60 |
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50 |
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40 |
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FUNDAMENTAL |
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30 |
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20 |
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10 |
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0 |
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±10 |
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3rd Order |
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± 20 |
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± 30 |
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± 40 |
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± 50 |
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V |
DD = |
26 Vdc |
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± 60 |
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I |
DQ = 1.8 Adc |
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±70 |
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f1 = 2000.0 MHz |
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± 80 |
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f2 = 2000.1 MHz |
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± 90 |
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5 |
10 |
15 |
20 |
25 |
30 |
35 |
40 |
45 |
50 |
55 |
60 |
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0 |
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Pin, INPUT POWER (dBm)
Figure 11. Class A Third Order Intercept Point
MRF284 MRF284S |
MOTOROLA RF DEVICE DATA |
6 |
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TYPICAL CHARACTERISTICS |
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11 |
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45 |
(%) |
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GAIN |
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(dB) |
10 |
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40 |
EFFICIENCY |
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VDD = 26 Vdc, IDQ = 200 mA |
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9 |
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η |
35 |
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8 |
Pout = 30 Watts (PEP) |
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30 |
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, GAIN |
7 |
Two±Tone |
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±32 |
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3.0 |
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Frequency Delta = 100 kHz |
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INTERMODULATION |
(dBc)DISTORTION |
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VSWRINPUT |
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G |
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p |
6 |
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IMD |
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5 |
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±36 |
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2.0 |
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4 |
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VSWR |
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3 |
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1940 |
1960 |
1980 |
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±40 |
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1.0 |
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1920 |
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2000 |
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f, FREQUENCY (MHz) |
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Figure 12. 1.92±2.0 GHz Broadband Circuit Performance
MTBF FACTOR (HOURS x AMPS2 )
1.E+10
1.E+09
1.E+08
1.E+07
1.E+06
1.E+05
1.E+04
0 |
50 |
100 |
150 |
200 |
250 |
TJ, JUNCTION TEMPERATURE (°C)
This graph displays calculated MTBF in hours x ampere2 drain current.
Life tests at elevated temperature have correlated to better than ±10% of the theoretical prediction for metal failure. Divide MTBF factor by ID2 for MTBF in a particular application.
Figure 13. MTBF Factor versus Junction Temperature
MOTOROLA RF DEVICE DATA |
MRF284 MRF284S |
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+ j1 |
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+ j0.5 |
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+ j2 |
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+ j3 |
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Zin |
2 GHz |
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+ j0.2 |
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+ j5 |
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Zo = 1 Ω |
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+ j10 |
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f = 1.8 GHz |
2 GHz |
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0.0 |
0.2 |
0.5 |
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5 |
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ZOL* |
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f = 1.8 GHz |
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± j10 |
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± j0.2 |
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± j5 |
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± j3 |
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± j0.5 |
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± j2 |
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± j1 |
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VCC = 26 V, ICQ = 200 mA, Pout = 15 Wavg |
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f |
Zin(1) |
ZOL* |
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MHz |
Ω |
Ω |
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1800 |
1.0 + j0.4 |
2.1 ± j0.4 |
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1860 |
1.0 + j0.8 |
2.2 + j0.2 |
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1900 |
1.0 + j1.1 |
2.3 + j0.5 |
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1960 |
1.0 + j1.4 |
2.5 + j0.9 |
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2000 |
1.0 + j2.3 |
2.6 + j0.92 |
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Zin(1)= Conjugate of fixture base terminal impedance.
ZOL* = Conjugate of the optimum load impedance at given output power, voltage, bias current and frequency.
Figure 14. Series Equivalent Input and Output Impedence
MRF284 MRF284S |
MOTOROLA RF DEVICE DATA |
8 |
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Table 1. Common Source S±Parameters at VDS = 26 Vdc, ID = 1.8 Adc
f |
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S11 |
S21 |
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S12 |
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S22 |
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GHz |
|S11| |
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f |
|S21| |
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f |
|S12| |
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f |
|S22| |
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f |
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1.0 |
0.902 |
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±170 |
1.10 |
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28 |
0.005 |
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60 |
0.913 |
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±162 |
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1.1 |
0.934 |
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±167 |
0.92 |
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26 |
0.006 |
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0.921 |
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±163 |
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1.2 |
0.948 |
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±167 |
0.85 |
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24 |
0.007 |
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0.924 |
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±164 |
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1.3 |
0.957 |
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±169 |
0.73 |
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0.009 |
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0.929 |
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±165 |
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1.4 |
0.959 |
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±169 |
0.68 |
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0.011 |
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0.931 |
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±165 |
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1.5 |
0.960 |
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±170 |
0.59 |
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0.014 |
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0.933 |
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±167 |
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1.6 |
0.958 |
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±172 |
0.53 |
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0.015 |
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0.936 |
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±168 |
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1.7 |
0.958 |
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±172 |
0.50 |
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0.016 |
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0.936 |
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±169 |
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1.8 |
0.956 |
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±174 |
0.45 |
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0.019 |
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0.937 |
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±170 |
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1.9 |
0.954 |
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±175 |
0.43 |
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0.020 |
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0.937 |
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±171 |
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2 |
0.944 |
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±177 |
0.39 |
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6 |
0.023 |
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0.937 |
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±173 |
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2.1 |
0.934 |
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±177 |
0.38 |
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4 |
0.023 |
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72 |
0.935 |
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±174 |
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2.2 |
0.935 |
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±178 |
0.35 |
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±1 |
0.013 |
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0.932 |
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±176 |
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2.3 |
0.945 |
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180 |
0.31 |
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±4 |
0.016 |
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116 |
0.925 |
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±179 |
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2.4 |
0.944 |
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178 |
0.30 |
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±5 |
0.023 |
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112 |
0.930 |
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±179 |
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2.5 |
0.946 |
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177 |
0.29 |
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±7 |
0.024 |
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105 |
0.935 |
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179 |
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2.6 |
0.941 |
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174 |
0.25 |
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±11 |
0.025 |
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112 |
0.930 |
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MOTOROLA RF DEVICE DATA |
MRF284 MRF284S |
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9 |
NOTES
MRF284 MRF284S |
MOTOROLA RF DEVICE DATA |
10 |
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