MMBFJ309LT1_06 Datasheet, PDF (4/5 Pages) ON Semiconductor – JFET - VHF/UHF Amplifier Transistor N-Channel

MMBFJ309LT1, MMBFJ310LT1
30
3.0
24 ^{VDS = 10 V}
I_D = 10 mA
T_A = 25°C
18
2.4
Y₁₁
1.8
12
Y₂₁
1.2
6.0
Y₂₂
0.6
Y₁₂
0
100
200 300
500 700 1000
f, FREQUENCY (MHz)
Figure 4. Common−Gate Y Parameter
Magnitude versus Frequency
|S₂₁|, |S₁₁|
0.85 0.45
|S₁₂|, |S₂₂|
0.060 1.00
0.79 0.39
0.73 0.33
0.67 0.27
V_DS = 10 V
I_D = 10 mA
T_A = 25°C
S₂₂
S₂₁
0.048 0.98
0.036 0.96
0.024 0.94
0.61 0.21
S₁₁
0.012 0.92
0.55 0.15
100
S₁₂
0.90
200 300
500 700 1000
f, FREQUENCY (MHz)
Figure 5. Common−Gate S Parameter
Magnitude versus Frequency
q₂₁, q₁₁
180° 50°
170° 40°
160° 30°
150° 20°
140° 10°
130° 0°
100
q₁₂, q₂₂
−2 0° 87°
q₂₂
−20 °
−40 ° 86°
q₂₁
−60 °
−80 ° 85°
−100 °
q₁₂
q₁₁
V_DS = 10 V
I_D = 10 mA
T_A = 25°C
−120 ° 84°
−140 °
−160 ° 83°
−180 °
200 300
−200 ° 82°
500 700 1000
f, FREQUENCY (MHz)
Figure 6. Common−Gate Y Parameter
Phase−Angle versus Frequency
q₁₁, q₁₂
−20 ° 120°
q₁₁
−40 ° 100° ^q21
q₂₂
−60 ° 80°
q₂₁, q₂₂
0
−20 °
−40 °
−80 ° 60°
q₁₂
−100 ° 40°
−120 ° 20°
100
q₂₁ ^{−60 °}
V_DS = 10 V
I_D = 10 mA
q₁₁
T_A = 25°C
200 300 500 700
f, FREQUENCY (MHz)
−80 °
−100 °
1000
Figure 7. S Parameter Phase−Angle
versus Frequency
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