MMA7260QR2 Freescale, MMA7260QR2 Datasheet - Page 12

• Manufacturer Part Number: MMA7260QR2
• Manufacturer: Freescale

Specifications of MMA7260QR2

• Package Type: QFN EP
• Operating Supply Voltage (min): 2.2V
• Operating Supply Voltage (typ): 3.3V
• Operating Supply Voltage (max): 3.6V
• Operating Temperature (min): -40C
• Operating Temperature (max): 105C
• Operating Temperature Classification: Industrial
• Product Depth (mm): 6mm
• Product Height (mm): 1.45mm
• Product Length (mm): 6mm
• Mounting: Surface Mount
• Pin Count: 16
• Lead Free Status / RoHS Status: Compliant

4.7
The Digitally Filtered Tilt application operates in the X and Y axes and has two views within the applet.
Figure 11
format.
Figure 12
it may be advantageous for an application to do post processing on a PC rather than an embedded device.
However, PC post processing can make the over-the-air packets larger and more frequent which uses more
power and renders the channel active if the application is busy.
If more preprocessing is done at the sensor, then the network may be less impacted to allow better node
density, throughput, and more efficient power usage. To reduce RF traffic from the accelerometer to the
PC_Radio embedded applications, the Accelerometer application only updates the PC_Radio when the X,
Y, and Z axes readings have deviated from the previous values. Application choices can affect the way a
wireless system performs.
12
Digitally Filtered Tilt
shows the scope view which shows the X and Y axes readings over the last 500 samples in raw
displays the moving average over the last 100 samples in the X and Y axes. Where appropriate,
Accelerometer Demonstration Application Note, Rev. 1.1
Figure 11. Triax Digitally Filtered Tilt (Raw Format)
Freescale Semiconductor