MPS6523(1997) 데이터 시트보기 (PDF) - Motorola => Freescale
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MPS6523 Datasheet PDF : 12 Pages
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NPN MPS6521 PNP MPS6523
NPN
MPS6521
NOISE FIGURE CONTOURS
(VCE = 5.0 Vdc, TA = 25°C)
500 k
200 k
100 k
50 k
20 k
10 k
5k
2k
1k
500
200
100
50
10
BANDWIDTH = 1.0 Hz
2.0 dB
3.0 dB 4.0 dB
6.0 dB
10 dB
20 30 50 70 100
200 300 500 700 1 k
IC, COLLECTOR CURRENT (µA)
Figure 5. Narrow Band, 100 Hz
1M
500 k
200 k
100 k
50 k
20 k
10 k
5k
2k
1k
500
200
100
10
BANDWIDTH = 1.0 Hz
1.0 dB
2.0 dB
3.0 dB
5.0 dB
8.0 dB
20 30 50 70 100
200 300 500 700 1 k
IC, COLLECTOR CURRENT (µA)
Figure 6. Narrow Band, 1.0 kHz
500 k
200 k
100 k
50 k
20 k
10 k
5k
2k
1k
500
200
100
50
10
10 Hz to 15.7 kHz
1.0 dB
2.0 dB
3.0 dB
5.0 dB
8.0 dB
20 30 50 70 100 200 300
IC, COLLECTOR CURRENT (µA)
Figure 7. Wideband
500 700 1 k
+ ǒ ) ) Ǔ ń Noise Figure is defined as:
NF
20 log10 en2
4KTRS In 2RS2 1 2
4KTRS
en = Noise Voltage of the Transistor referred to the input. (Figure 3)
In = Noise Current of the Transistor referred to the input. (Figure 4)
K = Boltzman’s Constant (1.38 x 10–23 j/°K)
T = Temperature of the Source Resistance (°K)
RS = Source Resistance (Ohms)
4
Motorola Small–Signal Transistors, FETs and Diodes Device Data
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