DSPIC30F6015 Microchip Technology Inc., DSPIC30F6015 Datasheet - Page 200

• Manufacturer Part Number: DSPIC30F6015
• Description: High-performance, 16-bit Digital Signal Controllers
• Manufacturer: Microchip Technology Inc.

dsPIC30F6010A/6015
FIGURE 24-14:
TABLE 24-31: QUADRATURE DECODER TIMING REQUIREMENTS
DS70150C-page 198
AC CHARACTERISTICS
TQ30
TQ31
TQ35
TQ36
TQ40
TQ41
Note 1:
Param
No.
2:
QEB
(input)
QEB
Internal
QEA
(input)
These parameters are characterized but not tested in manufacturing.
N = Index Channel Digital Filter Clock Divide Select Bits. Refer to the “Quadrature Encoder Interface
(QEI)” section 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
TQ35
CY
CY
CY
(2)
CY
TQ30
CY
CY
TQ40
Max
—
—
—
—
—
—
TQ30
-40°C T
-40°C
Units
T
ns
ns
ns
ns
ns
ns
A
A
© 2007 Microchip Technology Inc.
+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)
Conditions
—
—
—
—