ATQT600 Atmel, ATQT600 Datasheet - Page 38
ATQT600
Manufacturer Part Number
ATQT600
Description
KIT EVAL TOUCH FOR QT600
Manufacturer
Atmel
Series
QTouch™r
Specifications of ATQT600
Sensor Type
Touch Screen
Interface
USB
Embedded
Yes, Other
Utilized Ic / Part
ATtiny88, ATmega324PA, ATxmega128A1
Processor To Be Evaluated
ATtiny88, ATmega324, ATxmega128
Data Bus Width
8 bit, 16 bit
Interface Type
USB
Maximum Operating Temperature
+ 85 C
Minimum Operating Temperature
- 40 C
Operating Supply Voltage
1.6 V to 3.6 V
Silicon Manufacturer
Atmel
Kit Application Type
Sensor
Application Sub Type
Touch Sensor
Kit Contents
USB Bridge, MCU Cards, Touchpad Cards
Svhc
No SVHC (15-Dec-2010)
Mcu Supported Families
ATtiny88,
Rohs Compliant
Yes
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Voltage - Supply
-
Sensitivity
-
Sensing Range
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
ATQT600
Manufacturer:
Atmel
Quantity:
135
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5.6.6.1.2
Figure 5-9 illustrates a QMatrix capacitive sensing solution which uses 4 X lines and 4 Y lines
thereby providing a 16 channel solution.
Note:
The channel numbering for QMatrix configuration follows a matrix pattern with the channel
numbers starting from 0 for the matrix intersection (X0Y0 ) and increasing along the X lines for a
given Y line ( Channel 1 is X1Y0 ) and then moving on to the row number 0 for the next column.
Table 1 lists the possible channel numbers and the associated X/Y line associations for the
different configurations of QMatrix library variants.
A group of channels form a sensor and the sensor numbering is determined by the order in which
the user defines the association of channels and uses them as a sensor.
The channel numbering is fixed for a specific library variant based on the number of X and Y lines
used whereas the sensor numbering is determined at the time of usage based on the order in
which the user defines the association of the channels to create a sensor.
38
1. All channels selected for a specific rotor or slider should be on a single Y line.
2. The choice of ports for X and Y lines is left to the user to based on the availability of the
Channel 1 will be forming a SNS-SNSK pair as A3A4
Channel 2 will be forming a SNS-SNSK pair as A5A7.
The channel numbering is not dependent on the pin numbering.
pins available in the particular device selected. Please refer to the section 5.8.2 for more
details configuring of touch sensing pins for QMatrix.
Figure 5-9: Channel Numbering for QMatrix acquisition method libraries
Channel numbering when using QMatrix acquisition method
8207J-AT42-02/11
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