4.5 SIGNAL PROCESSING
Vdd = 4.0V, Cx = 10pF, Cs = 10nF, Fosc = 100kHz, Ta = recommended range, unless otherwise noted
Description
Threshold differential (positive)
Hysteresis
Fast negative threshold differential
Consensus filter length (Detection integrator)
Positive drift compensation rate
Negative drift compensation rate
Fast negative recalibration timer duration
Post-detection recalibration timer duration
Value
12
2
5
6
1,000
250
2
10, 60, infinite
Units
counts
counts
counts
samples
ms/level
ms/level
secs
secs
From signal reference
From threshold
Notes
Nominal timing dependent on Fosc, Sync
Nominal timing dependent on Fosc, Sync
Nominal timing dependent on Fosc, Sync
Option pin selected;
Nominal timings; dependent on Fosc, Sync
5 - PACKAGE OUTLINE
C
E
B A
H
ø
G
C'
Seating level
F D
Base level
209 mil 20-pin SSOP Dimensions
SYMBOL
A
B
C
C’
D
E
F
G
H
Min
291.0
196.0
9.0
271.0
65.0
-
4.0
26.0
4.0
0º
Inches (mils)
Typ
Max
323.0
220.0
15.0
295.0
73.0
-
10.0
34.0
8.0
8º
Min
7.39
4.98
0.23
6.88
1.65
-
0.10
0.66
0.10
0º
Metric (mm)
Typ
Max
8.20
5.59
0.38
7.49
1.85
-
0.25
0.86
0.20
8º
25.59
0.650
LQ
9
QT220R R1.02/0905
QUANTUM [ QUANTUM RESEARCH GROUP ]
