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BCWDLT1 数据表(PDF) 3 Page - Leshan Radio Company |
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BCWDLT1 数据表(HTML) 3 Page - Leshan Radio Company |
3 / 6 page LESHAN RADIO COMPANY, LTD. M9–3/6 Noise Figure is Defined as: NF = 20 log 10 ( –––––––––––––––) 1/ 2 e n = Noise Voltage of the Transistor referred to the input. (Figure 3) I n = 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) R s = Source Resistance ( Ω ) e n 2 +4KTR S +I n 2 R S 2 4KTR S TYPICAL NOISE CHARACTERISTICS (V CE = 5.0 Vdc, T A = 25°C) f, FREQUENCY (Hz) Figure 3. Noise Voltage f, FREQUENCY (Hz) Figure 4. Noise Current BANDWIDTH = 1.0 Hz R S 0 I C= 1.0mA 100 µA 30 µA 30 µA BANDWIDTH = 1.0 Hz R S I C=1.0mA 300 µA 100 µA 30 µA BANDWIDTH = 1.0 Hz BANDWIDTH = 1.0 Hz NOISE FIGURE CONTOURS (V CE = 5.0 Vdc, T A = 25°C) 20 10 7.0 5.0 3.0 2.0 10 20 50 100 200 500 1.0k 2.0k 5.0k 10 k 10 20 50 100 200 500 1.0k 2.0k 5.0k 10 k 100 50 20 10 5.0 2.0 1.0 0.5 0.2 0.1 500k 200k 100k 50k 20k 10k 5.0k 2.0k 1.0k 500 200 100 50 1.0M 500k 200k 100k 50k 20k 10k 5.0k 2.0k 1.0k 500 200 100 10 20 30 50 70 100 200 300 500 700 1.0K 10 20 30 50 70 100 200 300 500 700 1.0K 10 20 30 50 70 100 200 300 500 700 1.0K 2.0 dB 3.0 dB 4.0dB 6.0 dB 10 dB 2.0 dB 3.0dB 5.0 dB 8.0 dB 1.0 dB 2.0 dB 3.0 dB 5.0 dB 8.0 dB 10 Hz to 15.7Hz 10 µA 1.0 dB 500k 200k 100k 50k 20k 10k 5.0k 2.0k 1.0k 500 200 100 50 BCW60ALT1 BCW60BLT1 BCW60DLT1 I C , COLLECTOR CURRENT (µA) Figure 5. Narrow Band, 100 Hz I C , COLLECTOR CURRENT (µA) Figure 7. Wideband I C , COLLECTOR CURRENT (µA) Figure 6. Narrow Band, 1.0 kHz ~ ~ ~ ~ 10 µA |
类似零件编号 - BCWDLT1 |
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类似说明 - BCWDLT1 |
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