參數(shù)資料
型號(hào)： MRF581
廠商： MOTOROLA INC
元件分類： 小信號(hào)晶體管
英文描述： UHF BAND, Si, NPN, RF SMALL SIGNAL TRANSISTOR
文件頁數(shù)： 5/10頁
文件大小： 160K
代理商： MRF581
MRF581 MRF5812R1, R2
4
MOTOROLA RF DEVICE DATA
TYPICAL CHARACTERISTICS
MRF581
Figure 5. GUmax — Maximum Unilateral Gain,
|S21|2 versus Frequency
Figure 6. GAmax, Maximum Available Gain
versus Frequency
Figure 7. Minimum Noise Figure and Gain
Associated with Minimum Noise
Figure versus Frequency
Figure 8. Noise Figure versus Collector
Current f = 500 MHz
Figure 9. Noise Figure versus Collector Current
Figure 10. Noise Figure and Gain Associated
with Noise Figure versus Collector Current
25
0.2
0.1
f, FREQUENCY (GHz)
20
15
GAIN
(dB)
|S21|2
GUmax
VCE = 10 V
IC = 75 mA
GUmax =
|S21|2
(1 – |S11|2)(1 – |S22|2)
10
5
0
0.3
0.5
0.7
1
2
3
5
7
10
GAmax =
|S21|
|S12|
(K
± K2 –1), K ≥ 1
25
f, FREQUENCY (GHz)
20
15
GAIN
(dB)
10
5
0
0.3
0.5
0.7
1
2
3
VCE = 10 V
IC = 75 mA
25
0.2
0.1
f, FREQUENCY (GHz)
20
15
10
5
0
0.3
0.5
0.7
1
G
NF
,GAIN
ASSOCIA
TED
WITH
NOISE
FIGURE
(dB)
NF
,NOISE
FIGURE
(dB)
3
2
1
0
GNF
MRF581
VCE = 10 V
IC = 50 mA
25
0
IC, COLLECTOR CURRENT (mA)
50
75
100
125
NF
,NOISE
FIGURE
(dB)
3
2
1
0
4
5
ΓS = ΓL = 0
Zo = 50
4
MRF581
VCE = 10 Vdc
IC, COLLECTOR CURRENT (mA)
NF
,NOISE
FIGURE
(dB)
3
2
1
25
0
IC, COLLECTOR CURRENT (mA)
50
75
100
125
NF
,NOISE
FIGURE
(dB)
3
2
1
0
4
5
4
25
0
50
75
100
125
0
5
ΓS = ΓL = 0
Zo = 50
ΓS = ΓL = 0
Zo = 50
MRF581
VCE = 10 V
f = 200 MHz
VCE = 10 Vdc
f = 50 MHz
NFmin
NF50 W
ΓS = Γopt
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