QST108KT6 STMicroelectronics, QST108KT6 Datasheet - Page 35

• Manufacturer Part Number: QST108KT6
• Manufacturer: STMicroelectronics

Specifications of QST108KT6

• Lead Free Status / Rohs Status: Compliant

QST108
6.6
Capacitive sensing characteristics
Table 29.
Table 30.
MaxOnDuration Max on-duration delay
NegComDrift
PosComDrift
PosRecalTh
NegDiffDrift
PosDiffDrift
BurstCount
PosRecalI
EofDeTh
NegDriftI
ComFact
PosDriftI
Symbol
Symbol
DiffFact
DeTh
t
t
Setup
EDI
CAL
C
C
C
R
DI
S
X
T
S
External sensing components
Capacitive sensing parameters
Calibration duration
Setup duration
Detection integrator
Detection threshold
End of detection integrator
End of detection threshold
Positive recalibration integrator
Positive recalibration threshold
Positive differential drift compensation rate
Negative differential drift compensation rate
Positive common drift compensation rate
Negative common drift compensation rate
Positive drift integrator
Negative drift integrator
Common time step factor
Differential time step factor
Burst length
Sense capacitor
Equivalent electrode capacitor
Equivalent touch capacitor
Serial resistor
Parameter
Parameter
Min.
-128
-128
Min.
0.1
0.1
0.1
0.1
1
1
1
1
1
0
0
0
0
20
Electrical characteristics
Default Max.
Infinite
Typ.
100
-10
0.2
0.2
15
10
10
10
10
-6
2
2
2
1
1
2
5
Max.
25.5
25.5
25.5
25.5
2000
255
255
127
255
255
255
255
255
255
100
100
-1
-1
2
22
Samples
Samples
Samples
Counts
Counts
Counts
Counts
s/level
s/level
s/level
s/level
kOhm
Unit
Unit
ms
nF
pF
pF
s
s
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