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MPR121QR2 Fiches technique(PDF) 32 Page - Freescale Semiconductor, Inc

No de pièce MPR121QR2
Description  Proximity Capactive touch Senosr controller
PDF  57 Pages
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Fabricant  FREESCALE [Freescale Semiconductor, Inc]
Site Internet  http://www.freescale.com
Logo FREESCALE - Freescale Semiconductor, Inc

MPR121QR2 Fiches technique(HTML) 32 Page - Freescale Semiconductor, Inc

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MPR121
Sensors
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Freescale Semiconductor
Case 8
This case can also prevent keys from being stuck due to misuse. For example, if a metal pen touches a button, this may initially
engage the button but the pen is calibrated out over time and, normal function resumes. The same applies to water, food humid
environments and other instances that generate capacitance change.
A. Valid normal touch
B. False touch filtered out
C. Touch from new adjusted baseline
Figure 36.
Baseline
Data
A
C
B



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