MXT1664T3-ATESSQTP datasheet(1/98 Pages) MICROCHIP

部件名	MXT1664T3-ATESSQTP

功能描述	maXTouch 1664-node Touchscreen Controller

PDF	98 Pages

Scroll/Zoom	100%

制造商	MICROCHIP [Microchip Technology]

网页	http://www.microchip.com

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1 / 98 page

 2018 Microchip Technology Inc.

DS40002054A-page 1

mXT1664T3 2.0

maXTouch® Adaptive Sensing Touchscreen

Technology

• Up to 32 X (transmit) lines and 52 Y (receive) lines for

use by touchscreen.

• A maximum of 1664 nodes can be allocated to the

touchscreen

• Touchscreen size of 15.6 inches (16:10 aspect ratio),

assuming a sensor electrode pitch of 6.5 mm. Other

sizes are possible with different electrode pitches and

appropriate sensor material

• Multiple touch support with up to 16 concurrent

touches tracked in real time

• Dual-boot OS support for Microsoft® Windows® and

Android™

Touch Sensor Technology

• Discrete/out-cell support including glass and PET film-

based sensors

• Support for standard (for example, Diamond) and

proprietary sensor patterns (review of designs by

Microchip or a Microchip-qualified touch sensor

module partner is recommended)

Front Panel Material

• Works with PET or glass, including curved profiles

(configuration and stack-up to be approved by

Microchip or a Microchip-qualified touch sensor

module partner)

• Glass 0.4 mm to 4.5 mm (dependent on screen size,

touch size, configuration and stack-up)

• Plastic 0.2 mm to 2.2 mm (dependent on screen size,

touch size, configuration and stack-up)

Touch Performance

• Moisture/Water Compensation

- No false touch with condensation or water drop up

to 22 mm diameter

- One-finger tracking with condensation or water

drop up to 22 mm diameter

• Glove Support

• Mutual capacitance and self capacitance

measurements supported for robust touch detection

- Multiple-finger glove touches up to 1.5 mm

thickness (subject to stack-up design)

- Single-finger glove touch up to 5 mm thickness

(subject to stack-up design)

• Noise suppression technology to combat ambient,

charger, and power-line noise

- Up to 240 VPP between 1 Hz and 1 kHz sinusoidal

waveform

- Up to 20 VPP between 1 kHz and 1 MHz

sinusoidal waveform

• Scan Speed

- Up to 250 Hz reporting rate for one finger (subject

to configuration)

- Typical report rate for 16 touches

100 Hz

(subject to configuration)

- Initial touch latency <10 ms for first touch from idle

(subject to configuration)

- Configurable to allow for power and speed

optimization

Enhanced Algorithms

• Lens bending algorithms to remove display noise

• Touch suppression algorithms to remove unintentional

large touches, such as palm

• Palm Recovery Algorithm for quick restoration to

normal state

Power Saving

• Programmable timeout for automatic transition from

active to idle states

• Pipelined analog sensing detection and digital

processing to optimize system power efficiency

Application Interfaces

•I2C slave with support for Standard mode (up to

100 kHz), Fast mode (up to 400 kHz),

Fast-mode Plus (up to 1 MHz), High

Speed mode (up to 3.4 MHz)

• USB HID interface for Microsoft Windows 8.x and later

versions

•HID-I2C interface for Microsoft Windows 8.x and later

versions

• Interrupt to indicate when a message is available

• SPI Debug Interface to read the raw data for tuning

and debugging purposes

• Stylus Support

- Supports passive stylus with 1.5 mm contact

diameter, subject to configuration, stack-up, and

sensor design

maXTouch 1664-node Touchscreen Controller

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