CAT5128 Catalyst Semiconductor, CAT5128 Datasheet - Page 5

• Manufacturer Part Number: CAT5128
• Description: 32-tap Digital Up/down Control Potentiometer
• Manufacturer: Catalyst Semiconductor

AC CONDITIONS OF TEST
AC OPERATING CHARACTERISTICS
V
INTERFACE TIMING DIAGRAM
Notes:
(1) Typical values are for T
(2) This parameter is periodically sampled and not 100% tested.
(3) MI in the A.C. Timing diagram refers to the minimum incremental change in the W output due to a change in the wiper position.
© 2008 SCILLC. All rights reserved.
Characteristics subject to change without notice
V
Input Pulse Levels
Input Rise and Fall Times
Input Reference Levels
CC
t
DOWN_R,
CC
= +2.5V to +5.5V, V
t
UP_R,
Range
t
t
Symbol
DOWN_CYC
DOWN_SET
t
t
t
UP_CYC
UP_SET
t
DOWN
PU
t
UP
t
t
UP_F
DOWN_F
(2)
(2)
DOWN
R
(2)
UP
R
W
W
t
DOWN_SET
Parameter
UP
¯¯¯¯¯¯ LOW Period
UP
¯¯¯¯¯¯ Cycle Time
UP
¯¯¯¯¯¯ Rise and Fall Time
UP
¯¯¯¯¯¯ Settling Time
Power-up to Wiper Stable
DOWN
DOWN
DOWN
DOWN
¯¯ LOW Period
¯¯ Cycle Time
¯¯ Rise and Fall Time
¯¯ Settling Time
A
t
UP_SET
H
= 25ºC and nominal supply voltage.
= V
CC
, V
2.5V ≤ V
0.2V
10ns
0.5V
L
t
= 0V, unless othewise specified
DOWN
t
UP
CC
CC
t
DOWN_CYC
t
UP_CYC
Decrement R
Increment R
to 0.7V
CC
≤ 5.5V
CC
t
DOWN_R
W
W
t
UP_R
in Discrete Steps
in Discrete Steps
5
10%
10%
90%
90%
Min
500
500
200
200
1
1
–
–
–
90%
90%
10%
10%
t
DOWN_F
t
UP_F
Typ
–
–
–
–
–
–
–
–
–
(1)
MI
MI
(3)
(3)
Max
500
500
–
–
–
–
–
–
1
Doc. No. MD-2128 Rev. B
CAT5128
Units
ms
ns
ns
µs
µs
ns
ns
ns
ns