MMA5206WR2 Freescale Semiconductor, MMA5206WR2 Datasheet - Page 32

• Manufacturer Part Number: MMA5206WR2
• Description: IC ACCELER 60G X-AXIS 16QFN
• Manufacturer: Freescale Semiconductor

Specifications of MMA5206WR2

• Sensing Axis: X
• Acceleration: 60 g
• Sensitivity: 0.125 g/LSB
• Package / Case: QFN-16
• Supply Voltage (max): 25 V
• Supply Current: 4 mA to 8 mA
• Maximum Operating Temperature: + 125 C
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

32
3.6
3.6.1
the sensor. Acceleration beyond the range of the device can generate a DC shift at the output of the device that is dependent
upon the overload frequency and amplitude. The g-cell is overdamped, providing the optimal design for overload performance.
However, the performance of the device during an overload condition is affected by many other parameters, including:
Section
3.6.2
limits of the DSP. The ΣΔ converter can saturate at levels above those specified in
predictably under all cases of over range, although the signal may include residual high frequency components for some time
after returning to the normal range of operation due to non-linear effects of the sensor.
MMA52xxWR
Acceleration (g)
The device is designed to operate within a specified range. Acceleration beyond that range (overload) impacts the output of
Figure 24
Over Range conditions exist when the signal level is beyond the full-scale range of the device but within the computational
g
Range_Norm
g
g
2.
g-cell_Clip
Overload Response
Overload Performance
ADC_Clip
Sigma Delta Modulator Over Range Response
• g-cell damping
• Non-linearity
• Clipping limits
• Symmetry
shows the g-cell, ADC and output clipping of The device over frequency. The relevant parameters are specified in
Region of Interest
Region Clipped
by Output
f
LPF
LPF
Figure 24. Output Clipping Vs. Frequency
Rolloff
f
g-Cell
Region of No Signal Distortion Beyond
Specification
g-cell
Rolloff
Section 2
5kHz
(G
ADC_CLIP
10kHz
Freescale Semiconductor
). The DSP operates
Frequency (kHz)
Determined by g-cell
roll-off and ADC clipping
Determined by g-cell
roll-off and full scale range
Sensors