MMBR941LT1 Datasheet, PDF (14/17 Pages) Motorola, Inc – NPN Silicon Low Noise, High-Frequency Transistors

+ j1
+ j0.5
+ j2
+ j0.2
– j0.2
– j0.5
1.0
22
21
20
19
2.0
3.0
4.0
5.0
– j2
VCE = 6.0 V
IC = 5.0 mA
— AREA OF INSTABILITY
f (GHz) NF OPT (dB) ΓMS NF OPT RN
K
0.5
1.0
0.40 ∠ 28°
17
0.29
– j1
Figure 21. MRF9411LT1 Constant Gain and Noise Figure Contours
(f = 0.5 GHz)
+ j1
+ j0.5
+ j2
+ j0.2
– j0.2
1.5
19
18
17
2.0
16
VCE = 6.0 V
IC = 5.0 mA
— AREA OF INSTABILITY
f (GHz) NF OPT (dB) ΓMS NF OPT RN
K
1.0
1.5
0.17 ∠ 60°
13
0.53
3.0
4.0
5.0
– j0.5
– j2
– j1
Figure 22. MRF9411LT1 Constant Gain and Noise Figure Contours
(f = 1.0 GHz)
MMBR941 MRF947 MRF9411 SERIES
2–14
MOTOROLA RF DEVICE DATA