DSPIC30F2010 MICROCHIP [Microchip Technology], DSPIC30F2010 Datasheet - Page 171

• Manufacturer Part Number: DSPIC30F2010
• Description: High-Performance, 16-Bit Digital Signal Controllers
• Manufacturer: MICROCHIP [Microchip Technology]

FIGURE 22-14:
TABLE 22-30: QUADRATURE DECODER TIMING REQUIREMENTS
© 2006 Microchip Technology Inc.
AC CHARACTERISTICS
TQ30
TQ31
TQ35
TQ36
TQ40
TQ41
Note 1:
Param
No.
2:
QEA
(input)
QEB
(input)
QEB
Internal
These parameters are characterized but not tested in manufacturing.
N = Index Channel Digital Filter Clock Divide Select Bits. Refer to Section 16. “Quadrature Encoder
Interface (QEI)” in the “dsPIC30F Family Reference Manual” (DS70046).
T
T
T
T
T
T
Symbol
QU
QU
QU
QU
QUF
QUF
L
H
IN
P
L
H
QEA/QEB INPUT CHARACTERISTICS
Quadrature Input Low Time
Quadrature Input High Time
Quadrature Input Period
Quadrature Phase Period
Filter Time to Recognize Low,
with Digital Filter
Filter Time to Recognize High,
with Digital Filter
Characteristic
TQ36
TQ31
(1)
TQ41
Standard Operating Conditions: 2.5V to 5.5V
(unless otherwise stated)
Operating temperature
TQ31
TQ35
3 * N * T
3 * N * T
12 T
Typ
6 T
6 T
3 T
CY
CY
CY
TQ35
(2)
CY
TQ30
CY
CY
TQ40
Max
—
—
—
—
—
—
TQ30
-40°C T
-40°C
dsPIC30F2010
Units
T
ns
ns
ns
ns
ns
ns
A
A
+85°C for Industrial
+125°C for Extended
N = 1, 2, 4, 16, 32, 64,
128 and 256 (Note 2)
N = 1, 2, 4, 16, 32, 64,
128 and 256 (Note 2)
DS70118G-page 169
Conditions
—
—
—
—