DSPIC33FJ12MC201TESS datasheet(246/304 Pages) MICROCHIP

246 / 304 page

dsPIC33FJ12MC201/202

DS70265E-page 246

FIGURE 24-13:

QEI MODULE INDEX PULSE TIMING CHARACTERISTICS

TABLE 24-30: QUADRATURE DECODER 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)

Typ(2)

Max

Units

Conditions

TQ30

TQUL

Quadrature Input Low Time

6 TCY

—ns

—

TQ31

TQUH

Quadrature Input High Time

6 TCY

—ns

—

TQ35

TQUIN

Quadrature Input Period

12 TCY

—ns

—

TQ36

TQUP

Quadrature Phase Period

3 TCY

—ns

—

TQ40

TQUFL

Filter Time to Recognize Low,

with Digital Filter

3 * N * TCY

—

N = 1, 2, 4, 16, 32, 64,

128 and 256 (Note 3)

TQ41

TQUFH

Filter Time to Recognize High,

with Digital Filter

3 * N * TCY

—

N = 1, 2, 4, 16, 32, 64,

128 and 256 (Note 3)

Note 1:

These parameters are characterized by similarity, but are not tested in manufacturing.

Data in “Typ” column is at 3.3V, 25°C unless otherwise stated. Parameters are for design guidance only

and are not tested.

N = Index Channel Digital Filter Clock Divide Select bits. Refer to Section 15. “Quadrature Encoder

Interface (QEI)”

(DS70208) in the dsPIC33F/PIC24H Family Reference Manual. Please see the

Microchip (www.microchip.com) web site for the latest family reference manual chapters.

QEA

(input)

Ungated

Index

QEB

(input)

TQ55

Index Internal

Position Coun-

ter Reset

TQ50

TQ51

DSPIC33FJ12MC201TESS Datasheet(PDF) 246 Page - Microchip Technology

DSPIC33FJ12MC201TESS Datasheet(HTML) 246 Page - Microchip Technology

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

Datasheet Download

Link URL