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ISM330BX датащи(PDF) 41 Page - STMicroelectronics |
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ISM330BX датащи(HTML) 41 Page - STMicroelectronics |
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41 / 150 page ![]() 6.7.2 Block diagrams of the gyroscope filters In the ISM330BX, the gyroscope filtering chain depends on the mode configuration: • Mode 1 (for user interface (UI) functionality through primary interface) and mode 2 Figure 27. Gyroscope digital chain - mode 1 (UI) and mode 2 ADC LPF1_G_EN Digital LP Filter LPF1_G_BW_[2:0] LPF1 0 1 SPI / I2C / MIPI I3C FIFO Digital LP Filter ODR_G_[3:0] LPF2 (1) FSM / MLC ® 1. The LPF1 filter is available in high-performance mode only. If the gyroscope is configured in low-power mode, the LPF1 filter is bypassed. In this configuration, the gyroscope ODR is selectable from 7.5 Hz up to 3.84 kHz. A low-pass filter (LPF1) is available, for more details about the filter characteristics see Table 62. Gyroscope LPF1 + LPF2 bandwidth selection. The digital LPF2 filter's cutoff frequency depends on the selected gyroscope ODR, as indicated in the following table. Table 22. Gyroscope LPF2 bandwidth selection Gyroscope ODR [Hz] LPF2 cutoff [Hz] 7.5 3.4 15 6.6 30 13.0 60 24.6 120 49 240 96 480 187 960 342 1.92 kHz 490 3.84 kHz 527 Note: Data can be acquired from the output registers and FIFO over the primary I²C/MIPI I3C®/SPI interface. ISM330BX Functionality DS14588 - Rev 2 page 41/150 |
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