ASIC functions

§ Offset Calibration: Calibration of capacitive sensor offset

§ Span Calibration Calibration of capacitive sensor span

§ Self test of ASIC（Build in switch capacitance circuit to test the ASIC）

§ Self test of sensor（by applying a voltage to the capacitive accelerometer, the self test function test the integrity of the sensor during field operation

§ Bandwidth adjustment （low pass 500Hz or 2000Hz）, 50Hz with external capacitor

§ Clock Frequency adjustment