4.5 SIGNAL PROCESSING
Description
Value
Units
Notes
Threshold differential
6
counts
counts
samples
ms/level
ms/level
secs
From signal reference
From threshold
Hysteresis
2
Consensus filter length (Detection integrator)
Positive drift compensation rate
Negative drift compensation rate
Post-detection recalibration timer duration
3
990
231
10, 60, infinite
Option pin selected
All curves at Vdd = 5.0V
Burst Duration vs. Cs, Cx
Burst Duration vs. Cs, Cx
4000
3500
3000
18000
16000
14000
12000
10000
8000
6000
4000
2000
0
Cs = 220nF
2500
Cs = 100nF
Cs = 47nF
Cs = 39nF
Cs = 22nF
Cs = 10nF
Cs = 47nF
2000
Cs = 39nF
Cs = 22nF
1500
Cs = 10nF
1000
500
0
0
0
10
20
30
40
50
10
20
30
40
50
Cx
Cx
Figure 4-1
Figure 4-2
Burst Duration cs. Cs, Cx
18000
16000
14000
12000
10000
8000
Cx = 5pF
Cx = 10pF
Cx = 15pF
Cx = 22pF
Cx = 33pF
Cx = 47pF
6000
4000
2000
0
0
50
100
150
200
250
Cs, nF
Figure 4-3
lQ
11
QT140/150 1.01/1102
QUANTUM [ QUANTUM RESEARCH GROUP ]
