ATS672LSB
SELF-CALIBRATING TPOS GEAR-TOOTH SENSOR WITH 9-BIT SIGNAL CAPTURE
Preliminary – Subject to Change
Limits
Characteristics
Symbol
Test Conditions
Min.
Typ.
Max.
Units
SWITCH POINT CHARACTERISTICS
Tooth Speed
Bandwidth
Smax
0
8.0
kHz
kHz
f-3db
40
% of peak to peak referenced to tooth
signal, AG < Agmax;
Operate Point
Bop%
Brp%
+30
%
%
% of peak to peak referenced to tooth
Release Point
+40
signal, AG < Agmax;
Output Polarity
Over valley
Over tooth
Over valley
Over tooth
HIGH
LOW
LOW
HIGH
ATS672LSB-LN (no TPOS)
VOUT
ATS672LSB-LT (with TPOS)*
Output Polarity
ATS672LSB-HN (no TPOS)*
ATS672LSB-HT (with TPOS)*
VOUT
* Restrictions on availability may apply.
Calibration
Number of rising mechanical edges for
accurate edge detection
Initial Calibration
AGC Disable
CI
Cf
3
3
Edges
Edges
Number of rising mechanical edges
required to complete AGC calibration
Switchpoints
Tooth Signal
Bop%
Brp%
Bop%
Brp%
100%
Valley Signal
Rev. 1.2 May 1, 2002
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 (508) 853-5000
Copyright © 1993, 1995 Allegro MicroSystems, Inc.
Page 3 of 12
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