sx8638 Semtech Corporation, sx8638 Datasheet - Page 46

• Manufacturer Part Number: sx8638
• Description: Low Power, Capacitive Button And Slider Touch Controller 8 Sensors With Enhanced Led Drivers And Proximity
• Manufacturer: Semtech Corporation

ADVANCED COMMUNICATIONS & SENSING
CapThresh0, CapThresh1, CapThresh2, CapThresh3, CapThresh4, CapThresh5, CapThresh6, CapThresh7:
CapPerComp:
Revision 7_6, September 10
For each CAP pin a threshold level can be set individually.
The threshold levels are used by the SX8638 for making touch and release decisions on e.g. touch or no-
touch.
The details are explained in the sections for buttons and slider.
The SX8638 offers a periodic offset compensation for applications which are subject to substantial
environmental changes. The periodic offset compensation is done at a defined interval and only if slider and
buttons are released.
© 2010 Semtech Corp.
Low Power, Capacitive Button and Slider Touch Controller
(8 sensors) with Enhanced LED Drivers and Proximity
46
DATASHEET
www.semtech.com
SX8638