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SX8661 Datasheet(PDF) 84 Page - Semtech Corporation

Part # SX8661
Description  Low Power, Capacitive Button Touch and Proximity Controller
PDF  88 Pages
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Manufacturer  SEMTECH [Semtech Corporation]
Direct Link  http://www.semtech.com
Logo SEMTECH - Semtech Corporation

SX8661 Datasheet(HTML) 84 Page - Semtech Corporation

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ADVANCED COMMUNICATIONS & SENSING
DATASHEET
Revision v3.2, January 2011
© 2011 Semtech Corp.
www.semtech.com
84
SX8661
Low Power, Capacitive Button Touch and Proximity Controller
(8 sensors) with LED Drivers and Analog Output
7.3.3
Performance
The proximity sensing distance of detection has been measured in these conditions:
- CapProxEnable = ON
- CapSensitivity = 7 (Max)
- CapThreshold = 300
- Board main supplied and placed vertically i.e. same orientation as hand/finger
- Finger pointing center button
The results obtained are provided in table below:
Distance of Detection
Palm
~10cm
Finger
(natural position)
~6cm
Orthogonal finger
(worst case)
~4cm
Table 41
Proximity Sensing Distance of Detection
7.3.4
Schematics
Figure 67
Touch+Proximity Module Schematics



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