MRF949T1 Motorola, MRF949T1 Datasheet - Page 7

• Manufacturer Part Number: MRF949T1
• Description: LOW NOISE TRANSISTORS
• Manufacturer: Motorola

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(GHz)
(GHz)
V CE = 1 V
I C = 1 mA
V CE = 3 V
I C = 3 mA
MOTOROLA RF DEVICE DATA
1.0
1.0
f
f
Potentially Unstable
Potentially Unstable
INPUT
INPUT
Figure 19. MRF949T1 Series Constant Gain and
Figure 21. MRF949T1 Series Constant Gain and
1.57 dB 0.56
1.34 dB 0.45
OPT
OPT
NF
NF
–j0.2
–j0.2
j0.2
j0.2
o
o
47.3
57.7
Noise Figure Contours
Noise Figure Contours
–j0.5
–j0.5
11
0.2
0.2
j0.5
j0.5
5.0
24.2 0.48
18.2 0.73
R N
R N
16
15
4.0
10
13
14
K
0.5
K
0.5
3.0
9
f = 1 GHz
f = 1 GHz
8
–j1
–j1
j1
j1
1
1
2.0
OUTPUT
3.0
5.0
OUTPUT
2.0
1.34
1.57
4.0
2
2
j2
j2
–j2
–j2
(GHz)
(GHz)
V CE = 1 V
I C = 1 mA
V CE = 6 V
I C = 5 mA
2.0
1.0
f
f
2.08 dB 0.50
1.41 dB 0.44
OPT
OPT
NF
NF
INPUT
INPUT
Potentially Unstable
Potentially Unstable
Figure 20. MRF949T1 Series Constant Gain and
Figure 22. MRF949T1 Series Constant Gain and
–j0.2
–j0.2
j0.2
j0.2
o
o
119.8
42.9
R N
9
R N
13
19
–j0.5
–j0.5
8
j0.5
0.2
j0.5
0.2
Noise Figure Contours
Noise Figure Contours
0.93
0.86
K
K
18
7
17
15
6
16
0.5
0.5
2.08
f = 2 GHz
f = 1 GHz
5.0
4.0
5.0
3.0
–j1
–j1
4.0
j1
j1
1
1
3.0
2.0
OUTPUT
6.0
1.41
2
2
MRF949T1
j2
–j2
–j2
j2
OUTPUT
7