accelerometer Can internal PLL affect control logic in MEMS sensor

  
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Achieve communication between MCU and accelerometer trough I2C nor SPI. I observed that shorting PLL filter input in device causes no effect on both gyro readings and operation. My assumption is that PLL is present only in accelerometer part of the device. I have no data regarding PLL operation, the filter is built upon datasheet and board for device is built by myself. Is it possible that inappropriate
accelerometer Can internal PLL affect control logic in MEMS sensor - schematic

operation of device is caused by badly designed filter



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