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參數(shù)資料
| 型號： | MRF947 |
| 廠商： | MOTOROLA INC |
| 元件分類： | 小信號晶體管 |
| 英文描述： | Low Noise High-Freqency Transistors(低噪音高頻率NPN晶體管) |
| 中文描述： | L BAND, Si, NPN, RF SMALL SIGNAL TRANSISTOR |
| 封裝： | CASE 149-02, 3 PIN |
| 文件頁數(shù)： | 12/14頁 |
| 文件大小： | 275K |
| 代理商： | MRF947 |
MMBR941 MRF947 SERIES
12
MOTOROLA RF DEVICE DATA
0.2
0.5
1
2
VCE = 6 V
IC = 5 mA
f
(GHz)
1.0
Figure 18. MRF947 Series Constant Gain and
Noise Figure Contours
f = 1 GHz
0.2
0.5
1
2
VCE = 6 V
IC = 5 mA
f
(GHz)
1.5
Figure 19. MRF947 Series Constant Gain and
Noise Figure Contours
f = 1.5 GHz
NF
OPT
1.5dB 0.33
∠
77
°
14
Γ
o
RN
K
0.87
j0.5
NF
OPT
1.75dB 0.26
∠
141
°
15
Γ
o
RN
K
0.96
AREA OF INSTABILITY
AREA OF INSTABILITY
Figure 20. MRF947 Series Constant Gain and Noise Figure Contours
0.2
0.5
1
2
VCE = 1 V
IC = 0.5 mA
f
(GHz)
1.0
f = 1 GHz
NF
OPT
1.95dB 0.59
∠
72
°
30
Γ
MS
NF OPT
RN
K
0.50
2
j0.5
j0.2
–j0.5
–j1
–j2
j2
j1
–j0.2
AREA OF INSTABILITY
INPUT
OUTPUT
8.4
8
7
2.3
2.1
OUTPUT
11
10
3.0
13
j0.5
j0.2
–j0.5
–j1
–j2
j2
j1
12
–j0.2
5.0
2.0
INPUT
4.0
1.75
13
j0.2
–j0.5
–j1
–j2
j2
j1
4.0
15
16
–j0.2
14
INPUT
OUTPUT
5.0
2.0
3.0
1.5
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