Design contains obsolete parts

OM11055 - Capacitive Sensing - 4 Touch Pads

Summary

This user manual describes the OM11055 evaluation kit. This board was developed in order to provide a tool for application engineers and development engineers wishing to try and evaluate the single channel PCF8883 capacitive proximity switch. A LED displays the status of the switch; test points facilitate measurements of important signals.

The desired capacitive sensor area can vary in terms of material, form, size and switching distance. Each particular switch configuration demands a suitable electrical circuit for the input signal. This board allows to easily change the input circuit and the two capacitors which define the sensitivity and reaction speed of the sensor in a typical application. This offers the opportunity to rapidly evaluate many possible switching configurations.

Specifications

Manufacturer NXP USA Inc.
Category Sensor Solutions
Sub-Category Capacitive Sensing
Eval Board Part Number 568-4958-ND
Eval Board Supplier NXP USA Inc.
Eval Board Board not Stocked
Number & Type of Sensors 4 Buttons or off-board
Features Status Indication
Application / Target Market Cell Phones
Medical
Portable Devices
USB Powered Devices
Component Count + Extras 13 + 11
Design Author NXP
Voltage In 3 ~ 9 V
Sleep Mode Current [Maximum]
Main I.C. Base Part PCF8883
Quiescent Current [Maximum] 5 µA
Sleep Mode Current [Typical]
Quiescent Current [Typical] 3 µA
Date Created By Author 2009-12
Date Added To Library 2012-08

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