Microchip ATMXT2912TD-UW Manual

Microchip Ikke kategoriseret ATMXT2912TD-UW

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 2023 Microchip Technology Inc. and its subsidiaries Product Brief DS40002460A-page 1

mXT2912TD-AxUW 1.1

Description

The mXT2912TD-AxUW 1.1 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. The mXT2912TD-AxUW 1.1

allows for both mutual and self capacitance measurements, with the self capacitance measurements being used to augment the

mutual capacitance measurements to produce reliable touch information.

Automotive Applications

maXTouch® Adaptive Sensing Technology

Keys

Touch Sensor Technology

• On-cell/touch-on display support including OLED and

LCD (ITPS, IPS)

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

based sensors

• 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 or water drop

up to 22 mm diameter

- One-finger tracking with condensation or water

drop up to 22 mm diameter

• Mutual capacitance and self capacitance

measurements supported for robust touch detection

• P2P mutual capacitance measurements supported for

extra sensitive multi-touch sensing

• Noise suppression technology to combat ambient and

power-line noise

• AEC-Q100 Qualified

• CISPR 25 compliant (for both mutual and self

capacitance measurements)

• Microchip has patents related to the Ultrawide Touch

technology. The touch sensor, which will be developed

by the customer, its partners, and/or Microchip for

Ultrawide touch programs, can only be part of a touch

solution that incorporates a Microchip touchscreen

controller to implement the relevant functionality.

• Single ultrawide touchscreen up to 20 X lines by

142 Y lines, made up of 40 X by 71 Y in a multiplexed

arrangement (subject to configuration)

• Touchscreen size 34 inches (7:1 aspect ratio),

assuming a sensor electrode pitch of 6 mm. Other

sizes are possible with different electrode pitches and

appropriate sensor material. 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

• 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, including curved profiles

(configuration and stack-up to be approved by

Microchip or a Microchip-qualified touch sensor

module partner)

• 10 mm glass (or 5 mm PMMA) with bare finger

(dependent on sensor size, touch size, configuration

and stack-up)

• 6 mm glass (or 3 mm PMMA) with multi-nger 5 mm

glove (2.7 mm PMMA equivalent) (dependent on

sensor size, touch size, configuration and stack-up)

- 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 2911-node Touchscreen Controller

Product Brief

Produkt Specifikationer

Mærke:	Microchip
Kategori:	Ikke kategoriseret
Model:	ATMXT2912TD-UW

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