SCA3000 Series
Equation 11
2
SYX 2 + SYZ
CrossY = ±
⋅100%,
SY
where SYX is Y-axis sensitivity to X-axis acceleration [Count/g], SYZ is Y-axis sensitivity to Z-axis
acceleration [Count/g] and SY is sensitivity of Y-axis [Count/g].
Cross-axis sensitivity [%] of Z-axis is given by
Equation 12
2
SZX 2 + SZY
CrossZ = ±
⋅100%,
SZ
where SZX is Z-axis sensitivity to X-axis acceleration [Count/g], SZY is Z-axis sensitivity to Y-axis
acceleration [Count/g] and SZ is sensitivity of Z-axis [Count/g].
Cross-axis sensitivity of SCA3000 family is measured in centrifuge over specified measurement
range during qualification. Correct mounting position of component is important during the
measurement of cross-axis sensitivity.
8.7 Turn-on time
Turn-on time is the time when the last of one X, Y, Z axis output readings stabilizes into its final
value after XRESET is pulled high. The final value limits in turn-on time measurements is defined to
be ±1 % of the sensor’s full scale measuring range (for example for SCA3000-D01 ±2g →
FS = 2 g). Turn-on time definition for Z-axis is presented in Figure 25 below.
Acceleration
XRESET rise up
→ SCA3000 starts
SCA3000 output
inside ±1% FS
limits
SCA3000
Z-axis output
Time scale
Turn on time
Figure 25. Turn-on time definition for one axis.
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PRELIMINARY - Subject to changes
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Rev.A.06
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