at42qt113b ATMEL Corporation, at42qt113b Datasheet - Page 16

• Manufacturer Part Number: at42qt113b
• Manufacturer: ATMEL Corporation

5.4
Vdd = 3.0V, Ta = recommended range
5.4.1
16
Parameter
Threshold differential
Hysteresis
Consensus filter length
Positive drift compensation rate
Negative drift compensation rate
Post-detection recalibration timer
duration
T
T
T
T
T
T
F
T
RC
PC
BS
HB
PT
BL
R
Q
AC Specifications
AT42QT113B
Signal Processing
Description
Description
Recalibration time
Charge-transfer duration
Cx reset duration
Burst spacing interval
Burst length
Response time
Heartbeat pulse width
Burst frequency
Min
Minimum
4.9
3.1
10, 60, infinite
6 or 12
1,000
Typ
100
17
Typical
3
1.95
330
310
172
2.9
30
Max
Maximum
156
154
samples
seconds
ms/level
ms/level
counts
Units
%
Units
Option pin selected
Percentage of signal threshold
Option pin selected
kHz
ms
ms
ms
ms
µs
µs
µs
Notes
Cs, Cx dependent
Cs = 10 nF to 500 nF;
Cx = 0
Cs = 10 nF to 500 nF;
Cx = 0
Cx = 10 pF;
See
page 20
Notes
Figure A-3 on
9525B–AT42–09/10