SX8661Z datasheet(48/87 Pages) SEMTECH

Part #	SX8661Z

Description	Low Power, Capacitive Button Touch and Proximity Controller with LED Drivers and Analog Output

PDF	87 Pages

Scroll/Zoom	100%

Manufacturer	SEMTECH [Semtech Corporation]

Direct Link	http://www.semtech.com

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48 / 87 page

ADVANCED COMMUNICATIONS & SENSING

DATASHEET

Revision v4.0, February 2016

www.semtech.com

SX8661Z

Low Power, Capacitive Button Touch and Proximity Controller

(8 sensors) with LED Drivers and Analog Output

CapThresh0, CapThresh1, CapThresh2, CapThresh3, CapThresh4, CapThresh5, CapThresh6, CapThresh7:

For each CAP pin a threshold level can be set individually.

The threshold levels are used by the SX8661Z for making touch and release decisions.

The details are explained in the sections for buttons.

CapPerComp:

The SX8661Z 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 buttons are

released.

CapProxEnable:

The SX8661Z is intended to be used with proximity. This register is set by default to ON (0x74). In case

proximity is not required then this register should be set to OFF (0x46) and CAP0 Mode should be set to button

or disabled.

SX8661Z Datasheet(PDF) 48 Page - Semtech Corporation