MMBR941LT1 Datasheet, PDF (12/17 Pages) Motorola, Inc – NPN Silicon Low Noise, High-Frequency Transistors

+ j1
+ j0.5
+ j2
+ j0.2
– j0.2
21
20
19
18
– j0.5
1.0
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
0.43 ∠ 30°
18
0.58
– j1
Figure 17. MMBR941LT1, T3 Constant Gain and Noise Figure Contours
(f = 0.5 GHz)
+ j1
+ j0.5
INPUT
+ j2
OUTPUT
+ j0.2
1.5
16
15
2.0
– j0.2
14
13
3.0
4.0
5.0
– j0.5
– j2
– j1
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
0.22 ∠ 64°
13
0.93
Figure 18. MMBR941LT1, T3 Constant Gain and Noise Figure Contours
(f = 1.0 GHz)
MMBR941 MRF947 MRF9411 SERIES
2–12
MOTOROLA RF DEVICE DATA