ATS627LSG Datasheet, PDF (5/22 Pages) Allegro MicroSystems – True Zero Speed, Low Jitter, High Accuracy Position Sensor IC

ATS627LSG
True Zero Speed, Low Jitter, High Accuracy
Position Sensor IC
Target
Valley
Tooth
T_TARGET
T_VPROC
V_PROC
V_PROC = the processed analog signal of the sinusoidal magnetic input (per channel)
T_TARGET = period between successive sensed target mechanical edges of the same
orientation (either both rising or both falling)
Figure 1. Definition of T_TARGET
Sequential Regions
B_SEQ(n)
B_SEQ(n+1)
Signature
Region
B_SIG
Sequential Regions
B_SEQ(min)
B_SEQ(max)
Figure 2. Differential signature amplification and sequential signal variation
Allegro MicroSystems, Inc.
5
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com