Microchip ATMXT2113TD-MK Manual

Microchip Ikke kategoriseret ATMXT2113TD-MK

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 2022 Microchip Technology Inc. and its subsidiaries Product Brief DS40002424A-page 1

mXT2113TD-ATMK/

mXT2113TD-ABMK 1.0

Description

The mXT2113TD-ATMK/mXT2113TD-ABMK 1.0 uses a unique charge-transfer acquisition engine to implement Microchip’s

patented capacitive sensing method. Coupled with a state-of-the-art CPU, the entire touchscreen sensing solution can measure,

classify and track a number of individual finger touches with a high degree of accuracy in the shortest response time.

Automotive Applications

Microchip/Panasonic Knob Technology

• Detect and report the detent (click position) of specific

capacitive mechanical rotary encoders (knobs)

mounted on the touch panel

• Support for up to 4 Knob instances with different size

and number of detents (64 detents maximum)

• Position and size of each knob is individually

configurable. No specific touch pattern required

• Report relative detent position as well as the direction

of rotation

• Configurable suppression area around the knob to

suppress accidental touches from fingers holding the

knob

• Optional push/release function

• Design guidance, tools and other services available

from Microchip and Panasonic

maXTouch® Adaptive Sensing Technology

Keys

Touch Sensor Technology

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

based sensors

• On-cell/touch-on display support including TFT, LCD

(ITPS, IPS) and OLED

• Synchronization with display refresh timing capability

• 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 and Design

• Support for non-rectangular sensor designs (for

example, circular, rounded or with cutouts)

Touch Performance

• Moisture/Water Compensation

- No false touch with condensation

• P2P mutual capacitance measurements supported for

extra sensitive multi-touch sensing

• Noise suppression technology to combat ambient and

power-line noise

• Burst Frequency

- Flexible and dynamic Tx burst frequency selection

to reduce EMC disturbance

- Controlled Tx burst frequency drift over process

and temperature range

• AEC-Q100 Qualified

• CISPR 25 compliant

• Up to 33 X (transmit) lines and 64 Y (receive) lines for

use by a touchscreen and/or 2 key arrays

• A maximum of 2112 nodes can be allocated to the

touch sensor

• Touchscreen size of 16.9 inches (2:1 aspect ratio),

assuming a sensor electrode pitch of 6 mm. The

achievable touchscreen size depends on the knob

requirements

• Multiple touch support with up to 16 concurrent

touches tracked in real time depending on the number

of knobs implemented

• Up to 32 nodes can be allocated as mutual

capacitance sensor keys in addition to the

touchscreen, defined as 2 key arrays (subject to

availability of X and Y lines and other configurations)

• Adjacent Key Suppression (AKS) technology is

supported for false key touch prevention

• Works with PET or glass (dependent on sensor size,

touch size, configuration, stack-up, and dimension and

number of detents of the knob)

• Configuration and stack-up to be approved by

Microchip or a Microchip-qualified touch sensor

module partner

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

waveform (no touches)

- Up to 20 VPP between 1 kHz and 1 MHz

sinusoidal waveform

maXTouch 2112-node Touchscreen Controller

Product Brief

mXT2113TD-ATMK/mXT2113TD-ABMK 1.0

DS40002424A-page 2 Product Brief  2022 Microchip Technology Inc. and its subsidiaries

• Scan Speed

- Typical report rate for 10 touches 120 Hz (subject to configuration)

- Initial touch latency <20 ms for first touch from idle (subject to configuration)

- Panasonic Knob rotation speed maximum 80 rpm

- Configurable for power and speed optimization

• Touch panel failure detection

- Automatic touch sensor diagnostics during run time to support the implementation of safety critical features

- Diagnostics reported using dedicated output pin or by standard Object Protocol messages

- Configurable test limits

Enhanced Algorithms

• Dedicated drift calibration algorithm for the knob locations

• Lens bending algorithms to remove display noise

• Touch suppression algorithms to remove unintentional large touches

• Palm Recovery Algorithm for quick restoration to normal state

Data Store

• 60-byte CRC-checksummed data area for use as a run-time Product Data Store Area

• Up to 64 bytes of user’s custom data (not CRC checksummed)

Power Saving

• Programmable timeout for automatic transition from Active to Idle state

• Pipelined analog sensing detection and digital processing to optimize system power efficiency

Application Interfaces

Power Supply

Package

• 144-lead LQFP 20 × 20 × 1.4 mm, 0.5 mm pitch

Operating Temperature

Design Services

• Review of device configuration, stack-up and sensor patterns

• Specific design and tuning tools available as maXTouch Studio plug-ins

• Client interface for main communication with the device. Can be one of:

- I2C interface, with support for Standard mode (up to 100 kHz), Fast mode (up to 400 kHz),

Fast-mode Plus (up to 1 MHz)

- SPI interface (up to 8 MHz)

• Interrupt to indicate when a message is available

• Additional SPI Debug Interface to read the raw data for tuning and debugging purposes

• Digital (Vdd) 3.3V nominal

• Digital I/O (VddIO) 3.3V nominal

• Analog (AVdd) 3.3V nominal

• High voltage external X line drive (XVdd) up to 8.5V

• ATMXT2113TD-ATMK: –40C to +85C (Grade 3)

• ATMXT2113TD-ABMK: –40C to +105C (Grade 2)

Produkt Specifikationer

Mærke:	Microchip
Kategori:	Ikke kategoriseret
Model:	ATMXT2113TD-MK

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