IC-LTA_16 Datasheet, PDF (12/15 Pages) IC-Haus GmbH – 6-CH. INCREMENTAL OPTO ENCODER ARRAY

iC-LTA
preliminary
6-CH. INCREMENTAL OPTO ENCODER ARRAY
INDEX GATING AND INTERPOLATION
Rev C1, Page 12/15
VCC
T
GND
T1
PA
PB
PZ
T/4
T/4
T/4
T/4
SEL
Figure 7: Ungated index (T1 = high),
x1 comparated (SEL = low).
T
GND
T1
PA
PB
PZ
T/4
T/4
T/4
T/4
SEL
Figure 8: B-gated index (T1 = low),
x1 comparated (SEL = low).
VCC
T
GND
RA
T1
RB
PA
PB
PZ
T/4
T/4
T/4
T/4
SEL
Figure 9: AB-gated index (T1 = open or VCC/2),
x1 comparated (SEL = low).
VCC
T
GND
T1
PA
PB
VCC
SEL
PZ
T/4 T/4 T/4 T/4
Figure 10: T-gated index (T1 = high),
x2 interpolated (SEL = high).
T
GND
T1
PA
PB
VCC
SEL
PZ
T/4 T/4 T/4 T/4
Figure 11: B-gated index (T1 = low),
x2 interpolated (SEL = high).
VCC
T
GND
RA
T1
RB
PA
PB
VCC
SEL
PZ
T/4 T/4 T/4 T/4
Figure 12: AB-gated index (T1 = open or VCC/2),
x2 interpolated (SEL = high).
GND
T1
VCC
VCC
R1
SEL
R2
T
PA
PB
PZ
T/4 T/4 T/4 T/4
Figure 13: T-gated index (T1 = high),
x4 interpolated (SEL = 25% VCC).
GND
T1
VCC
R1
SEL
R2
T
PA
PB
PZ
T/4 T/4 T/4 T/4
Figure 14: B-gated index (T1 = low)
x4 interpolated (SEL = 25% VCC).
VCC
T
GND
RA
T1
RB
PA
VCC
R1
SEL
R2
PB
PZ
T/4 T/4 T/4 T/4
Figure 15: AB-gated index (T1 = open or VCC/2)
x4 interpolated (SEL = 25% VCC).