Catalogue VA Virtual Absolute Incremental Decoder
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A
Timing Diagrams
READ TIMING REQUIREMENTS
tO t1 t2 t3 t4 t5 t6
t7
t8 t9
J V
Hold
m
AO
J V
Error flag set
J V_
Error flags cleared
A1
Tri-State
Data
Clear
o
Time
Min
Max
ti - to
63nS
oo
t3 - t2
63nS
oo
t5 - t4
63nS
oo
t7 - t6
375nS
oo
t9 - t8
63nS
oo
ET TIMING REQUIREMENTS
t2 t3 t4
t5
t6 t7 t8
t9
tO
t1
vit+7
Voltage . Faulty
* 7
L
VIT- \
^VIT+
1
Undefined^
0.8V^
-2V
_J
\
/
\
1
\
0
System 1 Reset „
Time
Min
Typ
Max
tO - t1
89mS
1OOmS
t2 - t3
75nS
15OnS
t4 - t5
89mS
1OOmS
t6 - t7
27OnS
5OOnS
t6 - t8
150nS
o
t8 - t9
89mS
1OOmS
VIT = 4.7V Typ
XILIARY COSINE, SINE AND INDEX TIMI
Fwd
Rev
_l
J \ 1
\
1
\ 1 \ 1
1 \
1
\
1
\
ì 1 \ 1
_l
_l
1 \
1 \
Cos
Sin
Ind
0
Gurley Precision Instruments 514 Fulton Street Troy, NY 12180 U.S.A. (800) 759-1844, (518) 272-6300, fax (518) 274-0336, Online at www.gurley.com, e-mail: info@encoders.com
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