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DSPIC30F2010 датащи(PDF) 170 Page - Microchip Technology

номер детали DSPIC30F2010
подробное описание детали  16-bit Digital Signal Controllers
PDF  202 Pages
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производитель  MICROCHIP [Microchip Technology]
домашняя страница  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

DSPIC30F2010 датащи(HTML) 170 Page - Microchip Technology

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dsPIC30F2010
DS70118J-page 170
© 2011 Microchip Technology Inc.
FIGURE 22-15:
QEI MODULE INDEX PULSE TIMING CHARACTERISTICS
TABLE 22-31: QEI INDEX PULSE TIMING REQUIREMENTS
AC CHARACTERISTICS
Standard Operating Conditions: 2.5V to 5.5V
(unless otherwise stated)
Operating temperature
-40°C
≤TA ≤+85°C for Industrial
-40°C
≤TA ≤+125°C for Extended
Param
No.
Symbol
Characteristic(1)
Min
Max
Units
Conditions
TQ50
TqIL
Filter Time to Recognize Low,
with Digital Filter
3 * N * TCY
—
ns
N = 1, 2, 4, 16, 32, 64,
128 and 256 (Note 2)
TQ51
TqiH
Filter Time to Recognize High,
with Digital Filter
3 * N * TCY
—
ns
N = 1, 2, 4, 16, 32, 64,
128 and 256 (Note 2)
TQ55
Tqidxr
Index Pulse Recognized to Position
Counter Reset (Ungated Index)
3 TCY
—ns
—
Note 1:
These parameters are characterized but not tested in manufacturing.
2:
Alignment of Index Pulses to QEA and QEB is shown for Position Counter reset timing only. Shown for
forward direction only (QEA leads QEB). Same timing applies for reverse direction (QEA lags QEB) but
Index Pulse recognition occurs on falling edge.
QEA
(input)
Ungated
Index
QEB
(input)
TQ55
Index Internal
Position Counter
Reset
TQ50
TQ51



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