ATS672LSB
SELF-CALIBRATING TPOS GEAR-TOOTH SENSOR WITH 9-BIT SIGNAL CAPTURE
Preliminary – Subject to Change
Functional Block Diagram
AUTOMATIC GAIN CONTROL
OFFSET
ADJUST
HALL AMP
LPF
TC
DIFF
ADJUST
Offset
TC
TPOS
TPOS
OUTPUT
Internal
POR
Regulator
(Analog)
VREF
Pin1
VCC
TPOS
TRIM
Internal
Regulator
(Digital)
POWER ON
INITIALIZE
THRESHOLD
COMPARATOR
PDAC
COMP_P
9-BIT PDAC
DIFF
AGGRESSIVE
UPDATE
LOGIC
THRESHOLD
OUTPUT
OUTPUT
DRIVER
Pin2
VTHRESH
9-BIT
COUNTER
OUTPUT
STATE
OUTPUT
STATE
CLK
DIFF
THRESHOLD
OUTPUT
NDAC
COMP_N
9-BIT NDAC
AGGRESSIVE
UPDATE
LOGIC
9-BIT
COUNTER
OUTPUT
STATE
1M OSC
CLK
Rev. 1.2 May 1, 2002
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 (508) 853-5000
Copyright © 1993, 1995 Allegro MicroSystems, Inc.
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