MRF949T1 データシートの表示（PDF） - Motorola => Freescale
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MRF949T1 Datasheet PDF : 14 Pages
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VCE = 1 V
IC = 1 mA
f
NF
(GHz) OPT
Γo
RN K
1.0 1.57 dB 0.56 ∠ 57.7° 24.2 0.48
j0.5
OUTPUT
j1
j2
VCE = 1 V
IC = 1 mA
f
NF
(GHz) OPT
Γo
RN K
2.0 2.08 dB 0.50 ∠ 119.8° 13 0.93
j0.5
OUTPUT
j1
j2
j0.2
INPUT
5.0
4.0 3.0
2.0
1.57
11
–j0.2
10
9
8
2.08
j0.2
INPUT
9
8
7
6
–j0.2
3.0
4.0
5.0
6.0
–j0.5
–j2
Potentially Unstable
–j1
0.2
0.5
1
2
f = 1 GHz
Figure 19. MRF949T1 Series Constant Gain and
Noise Figure Contours
–j0.5
–j2
Potentially Unstable
–j1
0.2 0.5
1
2
f = 2 GHz
Figure 20. MRF949T1 Series Constant Gain and
Noise Figure Contours
VCE = 3 V
IC = 3 mA
f
NF
(GHz) OPT
Γo
RN K
1.0 1.34 dB 0.45 ∠ 47.3° 18.2 0.73
OUTPUT
j1
VCE = 6 V
IC = 5 mA
f
NF
(GHz) OPT
Γo
RN K
1.0 1.41 dB 0.44 ∠ 42.9° 19 0.86
j1
j0.5
j2
j0.5
j2 OUTPUT
j0.2
1.34
INPUT
16
15
14
–j0.2
13
–j0.5
2.0
3.0
4.0
5.0
–j2
Potentially Unstable
–j1
0.2
0.5
1
2
f = 1 GHz
Figure 21. MRF949T1 Series Constant Gain and
Noise Figure Contours
j0.2
1.41
INPUT
18
17
16
2.0
–j0.2
15
3.0
4.0
5.0
–j0.5
–j2
Potentially Unstable
–j1
0.2 0.5
1
2
f = 1 GHz
Figure 22. MRF949T1 Series Constant Gain and
Noise Figure Contours
MOTOROLA RF DEVICE DATA
MRF949T1
7
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