E6248 Atmel, E6248 Datasheet - Page 9

• Manufacturer Part Number: E6248
• Description: BOARD EVAL QT60248-AS QMATRIX
• Manufacturer: Atmel
• Series: Quantum, QMatrix™r

Specifications of E6248

• Sensor Type: Touch, Capacitive
• Sensing Range: 16 / 24 Buttons/Keys
• Interface: SPI Serial
• Voltage - Supply: 3 V ~ 5 V
• Embedded: No
• Utilized Ic / Part: QT60168, QT60248
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Sensitivity: -
• Other names: 427-1087

The graph window (QmGraph) displays the analog signal for a selected key. This is a great tool
for determining noise level, setting the correct sensitivity and setting the level of filtering required.
Vertical Scale
Magnification
Signal Traces
Origin for the
Colours of
as well as
Indicates
Sets the
Sets the
Legend
Current
Signal
Factor
Values
Lines Indicate One
Second Intervals
GRAPH WINDOW
The QmGraph window shows the signals for a specific key
(select a key by clicking its button in the main window)
(changes colour on detect)
Detect Integrator Level
Graph for Options
Right Click on
Signal Axis
Key Signal
Hysteresis
Reference
Threshold
Integrator
Negative
Negative
Signal
Detect
Level
Axis
9