Data Sheet - Freescale Semiconductor
Data Sheet - Freescale Semiconductor
Data Sheet - Freescale Semiconductor
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MMA27XXW<br />
Table 35. Offset cancellation startup characteristics and timing<br />
Offset cancellation<br />
startup phase<br />
Offset LPF Output rate limiting Total time for phase<br />
1 10 Hz Bypassed 80 ms<br />
2 1.0 Hz Bypassed 70 ms<br />
Self-test Offset Cancellation Updates are Suspended User Enabled<br />
Complete<br />
Table 36. Offset low-pass filter coefficients<br />
Description<br />
-3 dB frequency<br />
(±5%)<br />
10 Hz<br />
1.0 Hz<br />
0.1 Hz<br />
ao 0<br />
Selected by<br />
OC_FILT[2:0]<br />
0.015956938266754<br />
Selected by<br />
OC_FILT[2:0]<br />
no 1 0.499998132328277 do 1 1.0<br />
Sensors<br />
50 <strong>Freescale</strong> <strong>Semiconductor</strong>, Inc.<br />
N/A<br />
Coefficients Latency/Group delay<br />
no 2 0.499998132328277 do 2 -0.984043061733246<br />
ao 0 0.00160720286658033729<br />
no 1 0.5 do 1 1.0<br />
no 2 0.5 do 2 -0.99839282035827636719<br />
ao 0<br />
0.0001608133316040<br />
no 1 0.4999999403953552 do 1 1.0<br />
no 2 0.4999999403953552 do 2 -0.9998391270637512<br />
15.91 ms<br />
159.1ms<br />
1591 ms
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