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SX8661Z Datasheet(PDF) 80 Page - Semtech Corporation

Part # SX8661Z
Description  Low Power, Capacitive Button Touch and Proximity Controller with LED Drivers and Analog Output
PDF  87 Pages
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Manufacturer  SEMTECH [Semtech Corporation]
Direct Link  http://www.semtech.com
Logo SEMTECH - Semtech Corporation

SX8661Z Datasheet(HTML) 80 Page - Semtech Corporation

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ADVANCED COMMUNICATIONS & SENSING
DATASHEET
Revision v4.0, February 2016
© 2012 Semtech Corp.
www.semtech.com
80
SX8661Z
Low Power, Capacitive Button Touch and Proximity Controller
(8 sensors) with LED Drivers and Analog Output
Touch
Prox
ON
leds
(gpoi[1])
led
(gpio[0])
Release
ON
No Prox
OFF
OFF
&Prox
AOI
idle
prox
prox+btn_x
prox
idle
breathing (~1Hz)
10 seconds
Figure 62
dual proximity LED and AOI reporting
Figure 62 shows the reporting on the LEDs and the AOI for the application with two AOIs.
On proximity all the LEDs (d1 to dx) are enabled to maximum light intensity.
A touch on any button is shown by the continuous fading in and fading out of the LED d0.
AOI-A
AOI-B
prox
idle
idle
key1
0.6V
idle
key2
0.9V
idle
key3
1.2V
idle
key4
idle
1.5V
key5
idle
1.8V
key6
idle
2.1V
key7
idle
2.4V
Table 39
example AOI-A, AOIB



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