at42qt2100 ATMEL Corporation, at42qt2100 Datasheet - Page 30

• Manufacturer Part Number: at42qt2100
• Description: Qtouch Touch Sensor Ic
• Manufacturer: ATMEL Corporation

6. Specifications
6.1
6.2
6.3
Vdd = 5.0V, Cs keys = 4.7 nF, Cs slider/wheel = 15 nF; circuit of
30
V
Max continuous pin current, any control or drive pin
Short circuit duration to ground or Vdd, any pin
Voltage forced onto any pin
Operating temperature
Storage temperature
V
Short-term supply ripple + noise
Long-term supply stability
Cs range, keys
Cs range, slider/wheel
Cx range
Parameter
DD
DD
Tdf6
Tdf2
Tsu
Tpc
Tbd
Fm
Trc
Fc
Absolute Maximum Specifications
Recommended Operating Conditions
AC Specifications
AT42QT2100
CAUTION: Stresses beyond those listed under Absolute Maximum Specifications may cause permanent damage to the
device. This is a stress rating only and functional operation of the device at these or other conditions beyond those
indicated in the operational sections of this specification is not implied. Exposure to absolute maximum specification
conditions for extended periods may affect device reliability
Description
Start-up to SPI time
Recalibration time
Burst center frequency
Burst modulation, percent
Sample pulse duration
Acquire burst duration
Response time –
Free Run mode, DI 6 samples
Response time -
Free Run mode, DI 2 samples
Min
Figure 1-1
2.66
5.85
Typ
300
100
120
50
80
15
20
25
40
-0.3 to +6.0V
±20 mA
Infinite
-0.3V to (V
-40°C to +85°C
-50°C to +125°C
+2.0 to 5.5V
±20 mV/s
±100 mV
1 to 100 nF
4.7 to 220 nF
0 to 50 pF
Max
60
DD
Units
kHz
ms
ms
ms
ms
ms
+ 0.3) Volts
µs
%
Notes
From cold start
Depends on ground loading of
electrodes and Cs selection
Spread spectrum disabled
Spread spectrum enabled
Total deviation
Spread spectrum disabled
Spread spectrum enabled
Spread spectrum disabled
Spread spectrum enabled
(Total for all 3 acquire burst groups)
Spread spectrum disabled
Spread spectrum disabled
9554CX–AT42–11/11