ATEVK1010A

ATEVK1010A Datasheet

This kit is for the evaluation and development of applications using the AT42QT1010-TSHR 'QT1010' 1 Channel QTouch Integrated Circuit IC . This simple battery powered EVK1010A is configured with one capacitive key behind a 1mm acrylic front panel, where a touch is shown by the LED when KEY is touched.

Part	Datasheet
ATEVK1010A	ATEVK1010A (pdf)

PDF Datasheet Preview
Using the EVK1010A: This kit is for the evaluation and development of applications using the AT42QT1010-TSHR 'QT1010' 1 Channel QTouch Integrated Circuit IC . This simple battery powered EVK1010A is configured with one capacitive key behind a 1mm acrylic front panel, where a touch is shown by the LED when KEY is touched. Please visit for details of this and similar products, including links to relevant product datasheets. Insert the CR2032 3V battery provided into the battery holder on the EVK1010A. Ensure that the battery has the correct orientation or the EVK1010A will not work. Touch KEY and the LED will illuminate. Remove the touch from KEY and the LED will switch off. If KEY is touched for longer than ~60 seconds, LED will switch off. This is because the Max On-Duration has been exceeded and the QT1010 has recalibrated. Fast/Low Power/SYNC Mode: The QT1010 response speed can be changed on the EVK1010A for either a fast response or a slightly slower response with the benefit of reduced power consumption by changing the connection to Pin 6 of the QT1010. The supplied default is Low Power mode. To run in Fast Mode, cut the track from LK1 to C1 and solder a wire link from LK1 to the available VDD connection on top edge of the EVK1010A. For further details of Fast, Low Power and SYNC Mode, please refer to the QT1010 datasheet. Power Supply: An external power supply 1.8V - 5.5V can be used instead of the battery by connecting to VDD and GND, but ensure that the battery is removed. CR2032 3V VDD GND 100nF GND GND EXT VDD 5 AT42QT1010 SnsK 3 1 OUT Sns 4 Sync/Mode 6 8.2nF RS KEY 4.7K 2 Vss LK1 OUT Sample Capacitor/Sensitivity: CS is the sensing sample capacitor and can be replaced with different value X7R capacitor to change the sensitivity to touch of KEY or an external electrode . Increasing the capacitor value will increase sensitivity and decreasing the capacitor value will decrease the sensitivity. All flux residues should be removed after component replacement. External Electrode/Output: The EVK1010A can be connected to an external electrode by soldering to pads EXT and GND. The output from the QT1010 can be accessed at OUT. If connected externally, remove R1. Using the EVK1010A: This kit is for the evaluation and development of applications using the AT42QT1010-TSHR 'QT1010' 1 Channel QTouch Integrated Circuit IC . This simple battery powered EVK1010A is configured with one capacitive key behind a 1mm acrylic front panel, where a touch is shown by the LED when KEY is touched. Please visit for details of this and similar products, including links to relevant product datasheets. Insert the CR2032 3V battery provided into the battery holder on the EVK1010A. Ensure that the battery has the correct orientation or the EVK1010A will not work. Touch KEY and the LED will illuminate. Remove the touch from KEY and the LED will switch off. If KEY is touched for longer than ~60 seconds, LED will switch off. This is because the Max On-Duration has been exceeded and the QT1010 has recalibrated.

PDF Datasheet Preview

Using the EVK1010A:

This kit is for the evaluation and development of applications using the AT42QT1010-TSHR 'QT1010' 1 Channel QTouch Integrated Circuit IC . This simple battery powered EVK1010A is configured with one capacitive key behind a 1mm acrylic front panel, where a touch is shown by the LED when KEY is touched.

Please visit for details of this and similar products, including links to relevant product datasheets.

Insert the CR2032 3V battery provided into the battery holder on the EVK1010A.

Ensure that the battery has the correct orientation or the EVK1010A will not work.

Touch KEY and the LED will illuminate.

Remove the touch from KEY and the LED will switch off.

If KEY is touched for longer than ~60 seconds, LED will switch off.

This is because the Max On-Duration has been exceeded and the QT1010 has recalibrated.

Fast/Low Power/SYNC Mode:

The QT1010 response speed can be changed on the EVK1010A for either a fast response or a slightly slower response with the benefit of reduced power consumption by changing the connection to Pin 6 of the QT1010. The supplied default is Low Power mode. To run in Fast Mode, cut the track from LK1 to C1 and solder a wire link from LK1 to the available VDD connection on top edge of the EVK1010A. For further details of Fast, Low Power and SYNC Mode, please refer to the QT1010 datasheet.

Power Supply:

An external power supply 1.8V - 5.5V can be used instead of the battery by connecting to VDD and GND, but ensure that the battery is removed.

CR2032 3V VDD GND
100nF GND

GND EXT

VDD 5

AT42QT1010

SnsK 3
1 OUT Sns 4

Sync/Mode 6
8.2nF

RS KEY
4.7K
2 Vss

LK1 OUT

Sample Capacitor/Sensitivity:

CS is the sensing sample capacitor and can be replaced with different value X7R capacitor to change the sensitivity to touch of KEY or an external electrode .

Increasing the capacitor value will increase sensitivity and decreasing the capacitor value will decrease the sensitivity. All flux residues should be removed after component replacement.

External Electrode/Output:

The EVK1010A can be connected to an external electrode by soldering to pads EXT and GND. The output from the QT1010 can be accessed at OUT. If connected externally, remove R1.

Using the EVK1010A:

This kit is for the evaluation and development of applications using the AT42QT1010-TSHR 'QT1010' 1 Channel QTouch Integrated Circuit IC . This simple battery powered EVK1010A is
configured with one capacitive key behind a 1mm acrylic front panel, where a touch is shown by the LED when KEY is touched.

Please visit for details of this and similar products, including links to relevant product datasheets.

Insert the CR2032 3V battery provided into the battery holder on the EVK1010A.

Ensure that the battery has the correct orientation or the EVK1010A will not work.

Touch KEY and the LED will illuminate.

Remove the touch from KEY and the LED will switch off.

If KEY is touched for longer than ~60 seconds, LED will switch off.

This is because the Max On-Duration has been exceeded and the QT1010 has recalibrated.

Notice: we do not provide any warranties that information, datasheets, application notes, circuit diagrams, or software stored on this website are up-to-date or error free. The archived ATEVK1010A Datasheet file may be downloaded here without warranties.

Datasheet ID: ATEVK1010A 519249