Microchip AT42QT1085 Manual

Microchip Ikke kategoriseret AT42QT1085

Læs gratis den danske manual til Microchip AT42QT1085 (30 sider) i kategorien Ikke kategoriseret. Denne vejledning er vurderet som hjælpsom af 7 personer og har en gennemsnitlig bedømmelse på 4.4 stjerner ud af 4 anmeldelser. Har du et spørgsmål om Microchip AT42QT1085, eller vil du spørge andre brugere om produktet?

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Side 1/30

9625D–AT42–05/2013

Features

QTouch® Sensor Channels

Up to eight keys

Integrated Haptic Engine

Haptic events may be triggered by touch detection or controlled by a host

microcontroller over SPI

Data Acquisition

QTouchADC key measurement/touch detection method

Configurable measurement timing and averaging

Spread spectrum charge transfer

Raw data from channel measurement can be read over the SPI interface

GPIO Pins

12 dedicated bi-directional GPIO pins, plus up to 4 additional pins (replacing keys)

Configurable as software PWM Drive, digital inputs or outputs

Device setup

Device configuration may be stored in NVRAM

Operation

Power-On reset and brown-out detection

Internal calibrated oscillator

Key Outline Sizes

6 mm × 6 mm or larger (panel thickness dependent); widely different sizes and shapes

possible, including solid or ring shapes

Key Spacing

7 mm or more, center to center (panel thickness dependent)

Layers required

One

Electrode Materials:

Etched copper, silver, carbon, ITO

Electrode Substrates:

PCB materials; polyamide FPCB; PET films, glass

Panel materials:

Plastic, glass, composites, painted surfaces (low particle density metallic paints

possible)

Panel Thickness:

Up to 10 mm glass, 5 mm plastic (electrode size dependent)

Key Sensitivity:

Individually configured over SPI interface

Signal Processing:

Self-calibration, auto drift compensation, noise filtering

Patented Adjacent Key Suppression

® (AKS®) technology to ensure accurate key

detection

Interface:

Master/Slave SPI interface, up to 750 kHz

Object-based communications protocol

Power:

2.0 V to 5.5 V

Packages:

32-pin 5 × 5 mm QFN RoHS compliant

32-pin 7 × 7 mm TQFP RoHS compliant

Atmel AT42QT1085

Eight-key QTouch® Touch Sensor IC

DATASHEET

2AT42QT1085 [DATASHEET]

9625D–AT42–05/2013

1. Pinout and Schematic

1.1 Pinout Configuration

GPIO11

GPIO10

RESET

CHANGE

KEY3

KEY2

GPIO6

GPIO7

GPIO8

HAPTIC_PWM

MOSI

MISO

GPIO0

GPIO1

GPIO2

VDD

VSS

GPIO3

GPIO5 SCK

AVDD

KEY6 / GPIO13

GPIO9

VSS

KEY7 / GPIO12

KEY0

KEY1

8 17

32 31 30 29 28 27 26 25

9 10 11 1615141312

HAPTIC_EN

GPIO4

KEY4 / GPIO15

KEY5 / GPIO14

AT42QT1085

Produkt Specifikationer

Mærke:	Microchip
Kategori:	Ikke kategoriseret
Model:	AT42QT1085

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