MMBT6428 Просмотр технического описания (PDF) - Leshan Radio Company
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MMBT6428 Datasheet PDF : 4 Pages
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LESHAN RADIO COMPANY, LTD.
MMBT6428LT1 MMBT6429LT1
NOISE CHARACTERISTICS
(V CE = 5.0 Vdc, T A = 25°C)
NOISE VOLTAGE
30
BANDWIDTH = 1.0 Hz
20
I C = 10 mA
R S ~~ 0
30
BANDWIDTH = 1.0 Hz
20
R S ~~ 0
3.0 mA
10
10
1.0 mA
7.0
7.0
5.0
5.0
f = 10 Hz
100 Hz
10 kHz
1.0 kHz
3.0
10 20
300 µA
50 100 200 500 1k 2k 5k 10k 20k 50k 100k
f, FREQUENCY (Hz)
Figure 2. Effects of Frequency
3.0
0.01 0.02 0.05 0.1 0.2
100 kHz
0.5 1.0 2.0
5.0 10
I C , COLLECTOR CURRENT (mA)
Figure 3. Effects of Collector Current
10
7.0
BANDWIDTH = 1.0 Hz
5.0
I C = 10 mA
3.0
3.0 mA
2.0
1.0
1.0 mA
0.7
0.5
300 µA
0.3
100 µA
0.2
R S ~~ 0
0.1
10 µA
30 µA
10 20 50 100 200 500 1k 2k 5k 10k 20k
50k 100k
f, FREQUENCY (Hz)
Figure 4. Noise Current
2.0
16
BANDWIDTH = 10 Hz to 15.7 kHz
12
I C = 1.0 mA
8.0
500 µA
100 µA
4.0
10 µA
0
10 20 50 100 200 500 1k 2k 5k 10k 20k 50k 100k
R S , SOURCE RESISTANCE (Ω)
Figure 5. Wideband Noise Figure
100 Hz NOISE DATA
300
200 BANDWIDTH = 1.0 Hz
I C = 10 mA
100
3.0 mA
70
1.0 mA
50
300 µA
30
100 µA
20
30 µA
10
7.0
10 µA
5.0
3.0
10 20 50 100 200 500 1k 2k 5k 10k 20k 50k 100k
20
16
I C = 10 mA
3.0 mA
1.0 mA
12
8.0
4.0
BANDWIDTH = 1.0 Hz
0
10 20 50 100 200 500 1k 2k
300 µA
100 µA
30 µA
10 µA
5k 10k 20k 50k 100k
R S , SOURCE RESISTANCE (Ω)
Figure 6. Total Noise Voltage
R S , SOURCE RESISTANCE (Ω)
Figure 7. Noise Figure
M22–3/4
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