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2N5087RLRAG Arkusz danych(PDF) 3 Page - ON Semiconductor |
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2N5087RLRAG Arkusz danych(HTML) 3 Page - ON Semiconductor |
3 / 7 page 2N5087 http://onsemi.com 3 TYPICAL NOISE CHARACTERISTICS (VCE = −5.0 Vdc, TA = 25°C) Figure 1. Noise Voltage f, FREQUENCY (Hz) 5.0 7.0 10 3.0 Figure 2. Noise Current f, FREQUENCY (Hz) 1.0 10 20 50 100 200 500 1.0k 2.0k 5.0k 10k 1.0 7.0 5.0 3.0 2.0 1.0 0.7 0.5 0.3 0.1 BANDWIDTH = 1.0 Hz RS ≈ 0 IC = 10 mA 100 mA 30 mA BANDWIDTH = 1.0 Hz RS ≈∞ IC = 1.0 mA 300 mA 100 mA 30 mA 10 mA 10 20 50 100 200 500 1.0k 2.0k 5.0k 10k 2.0 1.0 mA 0.2 300 mA 500k 100 200 500 1.0k 10k 5.0k 20k 50k 100k 200k 2.0k 1.0M 500k 100 200 500 1.0k 10k 5.0k 20k 50k 100k 200k 2.0k 1.0M Figure 3. Narrow Band, 100 Hz IC, COLLECTOR CURRENT (mA) Figure 4. Narrow Band, 1.0 kHz IC, COLLECTOR CURRENT (mA) 10 0.5 dB BANDWIDTH = 1.0 Hz Figure 5. Wideband IC, COLLECTOR CURRENT (mA) 10 10 Hz to 15.7 kHz Noise Figure is Defined as: NF + 20 log10 en2 ) 4KTRS ) In 2RS2 4KTRS 1 2 = Noise Voltage of the Transistor referred to the input. (Figure 3) = Noise Current of the Transistor referred to the input. (Figure 4) = Boltzman’s Constant (1.38 x 10−23 j/ °K) = Temperature of the Source Resistance ( °K) = Source Resistance (Ohms) en In K T RS 1.0 dB 2.0 dB 3.0 dB 20 30 50 70 100 200 300 500 700 1.0k 10 20 30 50 70 100 200 300 500 700 1.0k 500k 100 200 500 1.0k 10k 5.0k 20k 50k 100k 200k 2.0k 1.0M 20 30 50 70 100 200 300 500 700 1.0k BANDWIDTH = 1.0 Hz 5.0 dB 0.5 dB 1.0 dB 2.0 dB 3.0 dB 5.0 dB 0.5 dB 1.0 dB 2.0 dB 3.0 dB 5.0 dB |
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