DSPIC33FJ12MC201TESS datasheet(247/304 Pages) MICROCHIP

tên linh kiện	DSPIC33FJ12MC201TESS

Giải thích chi tiết về linh kiện	High-Performance, 16-bit Digital Signal Controllers

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247 / 304 page

DS70265E-page 247

dsPIC33FJ12MC201/202

TABLE 24-31: QEI INDEX PULSE TIMING REQUIREMENTS

AC CHARACTERISTICS

Standard Operating Conditions: 3.0V to 3.6V

(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

—

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

—

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 by similarity, but are not tested in manufacturing.

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.

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