KX022-1020 Datasheet, PDF (64/75 Pages) List of Unclassifed Manufacturers – Accelerometer Specifications

± 2g / 4g / 8g Tri-axis Digital
Accelerometer Specifications
PART NUMBER:
KX022-1020
Rev. 11.0
10-Sep-15
Double Tap Detection
An event can be characterized as a double tap if the second tap crosses up the performance index
(TTL) inside the TWS period and ends outside the TDTC. This means that the TDTC determines the
minimum time separation that must exist between the two taps of a double tap event. Similar to the
single tap, the first tap event must exceed the performance index for the time limit contained in FTD.
Also, the duration when the first and second events combined exceed the performance index should
not exceed STD. The double tap will be reported at the end of the second TLT. Figure 13 shows a
double tap event meeting the PI, latency and window requirements.
Figure 13: Double Directional Tap^TM Timing
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