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Datenblatt-Suchmaschine für elektronische Bauteile |
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Datenblatt-Suchmaschine für elektronische Bauteile |
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BMP581 Datenblatt(PDF) 21 Page - Bosch Sensortec GmbH |
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BMP581 Datenblatt(HTML) 21 Page - Bosch Sensortec GmbH |
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21 / 75 page  Bosch Sensortec | BST-BMP581-DS004-11 21 | 75 © Bosch Sensortec GmbH 2023 | All rights reserved, also regarding any disposal, exploitation, reproduction, editing, distribution, Document number: BST-BMP581-DS004-11 as well as in the event of applications for industrial property rights Figure 3: Step response at different IIR filter settings Figure 4: Step response at different IIR filter settings on log scale and different threshold limits in dashed lines (3dB, 90%, 95%, 99.5%, 100%) Table 10: IIR filter settings and bandwidth Register value Filter coefficient Normalized bandwidth ( -3db cutoff frequency) 0x0 0 Bypass 0x1 1 0.1147 0x2 3 0.0459 0x3 7 0.0212 0x4 15 0.01025 0x5 31 0.005041 0x6 63 0.00250 0x7 127 0.00125 The IIR filter can be independently programmed for temperature and pressure with the fields DSP_IIR.set_iir_t and DSP_IIR.set_iir_p. The value “0x0” is used to bypass the filter. The IIR filter is reset when a transition from sleep mode to NORMAL or CONTINUOUS mode occurs. That means that the first measurment value will be the initial content of the filter. A manual reset of the filter, e.g. when using forced mode, can be triggered by asserting the register field DSP_- CONFIG.iir_flush_forced_en. |
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