ATAVRQTOUCHX Atmel, ATAVRQTOUCHX Datasheet - Page 119

• Manufacturer Part Number: ATAVRQTOUCHX
• Description: BOARD EVAL CAPACITIVE TOUCH
• Manufacturer: Atmel
• Series: QTouch™r

Specifications of ATAVRQTOUCHX

• Sensor Type: Touch, Capacitive
• Sensing Range: 1 Slider, 1 Wheel, 2 Buttons
• Interface: USB
• Voltage - Supply: 5V, USB
• Embedded: Yes, MCU, 8-Bit
• Utilized Ic / Part: AT90USB1287, ATxmega128A1
• Silicon Manufacturer: Atmel
• Silicon Family Name: ATxmega
• Kit Contents: Board
• Svhc: No SVHC (15-Dec-2010)
• Core Architecture: AVR
• Core Sub-architecture: AVR19
• Kit Features: One Slider, One Wheel And 2
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Sensitivity: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

6.3.8.3
The clock for the CAT module, CLK_CAT, is generated by the Power Manager (PM). This clock is
turned on by default, and can be enabled and disabled in the PM. The user must ensure that
CLK_CAT is enabled before initializing the QTouch Library.
The QTouch method acquisition using the CAT module requires one Peripheral DMA channel
that must be provided by the application.
A. QTouch Group A/B and Autonomous QTouch arrangement.
C. QTouch Group A/B and Autonomous QTouch arrangement.
Atmel
AT32UC3L
Atmel
AT32UC3L
Resistive drive enabled on SNSK Line.
Resistive drive enabled on SNSK Line.
External Synchronization enabled.
Figure 40 QTouch Group A/B and Autonomous QTouch schematic arrangement
QTouch Group A/B method hardware resource requirement for UC3L
CAT
Module
CAT
Module
SNSK
SNSK
SYNC
SNS
SNS
Sync
signal
Typical Values:
Cs: 22nF
Pin requirements:
SNS: CAT QTouch method I/O pin
SNSK: CAT QTouch method I/O pin
Typical Values:
Cs: 22nF
Pin requirements:
SNS: CAT QTouch method I/O pin
SNSK: CAT QTouch method I/O pin
SYNC: CAT-SYNC I/O pin
Cs
Cs
Sensor
Sensor
B. QTouch Group A/B and Autonomous QTouch arrangement.
Atmel
AT32UC3L
Resistive drive disabled on SNSK Line.
CAT
Module
SNSK
SNS
Typical Values:
Cs: 22nF, Rs:1kOhm
Pin requirements:
SNS: CAT QTouch method I/O pin
SNSK: CAT QTouch method I/O pin
Cs
Rs
Sensor
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