What parameters affect double tap detection reliability?

[yanqil]

I am using the BMA456 in a product.  One of the features of the accelerometer that I am using is the double-tap functionality.  Besides the sensitivity and the ODR, what other settings would affect the reliability of the double tap sensor?  Do things like the number of averages affect this?

[BSTRobin]

Hello yanqil,

Tap detection was done by measuring the acceleration on z-direction. It must be ensured that when the structure is placed, the tap can be aligned with the Z direction.

[yanqil]

RE: BSTRobin.  Yes that was quite obvious in the datasheet and we have ensured that in the design.  I am asking about register settings in the BMA device  itself that would affect reliability or performance of the double tap sensing.

[BSTRobin]

Hello yanqil,

ODR must be greater than or equal to 200 Hz.

If you install the sensor on the overall machine, you could adjust the appropriate sensitivity.