Microchip CAP1203 Manual

Microchip Ikke kategoriseret CAP1203

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 2013-2015 Microchip Technology Inc. DS00001572B-page 1

General Description

The CAP1203 is a multiple channel capacitive touch

sensor controller. It contains individual capacitive touch

sensor inputs with programmable sensitivity for use in

touch sensor applications. Each sensor input is cali-

brated to compensate for system parasitic capacitance

and automatically recalibrated to compensate for grad-

ual environmental changes.

The CAP1203 includes Multiple Pattern Touch recogni-

tion that allows the user to select a specific set of but-

tons to be touched simultaneously. If this pattern is

detected, a status bit is set and an interrupt is gener-

ated.

The CAP1203 has Active and Standby states, each

with its own sensor input configuration controls. Power

consumption in the Standby state is dependent on the

number of sensor inputs enabled as well as averaging,

sampling time, and cycle time. Deep Sleep is the low-

est power state available, drawing 5µA (typical) of cur-

rent. In this state, no sensor inputs are active, and

communications will wake the device.

Applications

• Desktop and Notebook PCs

• LCD Monitors

• Consumer Electronics

• Appliances

Features

• Three (3) Capacitive Touch Sensor Inputs

- Programmable sensitivity

- Automatic recalibration

- Calibrates for parasitic capacitance

- Individual thresholds for each button

• Multiple Button Pattern Detection

• Power Button Support

• Press and Hold Feature for Volume-like Applica-

tions

• 3.3V or 5V Supply

• Analog Filtering for System Noise Sources

• RF Detection and Avoidance Filters

• Digital EMI Blocker

• 8kV ESD Rating on All Pins (HBM)

• Low Power Operation

- 5µA quiescent current in Deep Sleep

- 50µA quiescent current in Standby (1 sensor

input monitored)

- Samples one or more channels in Standby

• SMBus / I2C Compliant Communication Interface

• Available in an 8-pin 2mm x 3mm TDFN RoHS

compliant package

• Available in an 8-pin SOIC RoHS compliant pack-

age

CAP1203

3-Channel Capacitive Touch Sensor

DS00001572B-page 2  2013-2015 Microchip Technology Inc.

TO OUR VALUED CUSTOMERS

It is our intention to provide our valued customers with the best documentation possible to ensure successful use of your Microchip

products. To this end, we will continue to improve our publications to better suit your needs. Our publications will be rened and

enhanced as new volumes and updates are introduced.

If you have any questions or comments regarding this publication, please contact the Marketing Communications Department via

E-mail at docerrors@microchip.com. We welcome your feedback.

Most Current Data Sheet

To obtain the most up-to-date version of this data sheet, please register at our Worldwide Web site at:

http://www.microchip.com

You can determine the version of a data sheet by examining its literature number found on the bottom outside corner of any page.

The last character of the literature number is the version number, (e.g., DS30000000A is version A of document DS30000000).

Errata

An errata sheet, describing minor operational differences from the data sheet and recommended workarounds, may exist for cur-

rent devices. As device/documentation issues become known to us, we will publish an errata sheet. The errata will specify the

revision of silicon and revision of document to which it applies.

To determine if an errata sheet exists for a particular device, please check with one of the following:

• Microchip’s Worldwide Web site; http://www.microchip.com

• Your local Microchip sales office (see last page)

When contacting a sales office, please specify which device, revision of silicon and data sheet (include -literature number) you are

using.

Customer Notification System

Produkt Specifikationer

Mærke:	Microchip
Kategori:	Ikke kategoriseret
Model:	CAP1203

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