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Moteur de recherche de fiches techniques de composants électroniques |
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Moteur de recherche de fiches techniques de composants électroniques |
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AN3213 Fiches technique(PDF) 28 Page - STMicroelectronics |
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AN3213 Fiches technique(HTML) 28 Page - STMicroelectronics |
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28 / 64 page  ST7570 demonstration board description AN3213 28/64 Doc ID 17429 Rev 1 Simulation of the Tx active filter response against component tolerance, depicted in Figure 18, shows +/-1 dB variation in gain module within the signal bandwidth, while the Q variation is more sensitive around 100 kHz. Figure 18. Montecarlo simulation of the transmission active filter frequency response 7.1.2 Reception passive filter The reception filter is made up of the series of a resistor and a parallel L-C resonant. The transfer function of the filter can be written as: Equation 5 Where ● RL is the DC series resistance of the inductor (in this case, about 2 Ω) ● C‘1 is the parallel of C1 with the reverse capacitance of the transil diode D3, which is about 2 nF. The center frequency and the quality factor of the filter can be expressed as: Equation 6 Equation 7 |
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