參數(shù)資料
型號: x9319
元件分類: 數(shù)字電位計
英文描述: Digitally Controlled Potentiometer(數(shù)字電位器)
中文描述: 數(shù)控電位器(數(shù)字電位器)
文件頁數(shù): 5/10頁
文件大?。?/td> 233K
代理商: X9319
5
FN8185.2
September 26, 2006
A.C. OPERATING CHARACTERISTICS
(V
CC
= 5V ±10%, T
A
= Full Operating Temperature Range unless otherwise stated)
POWER-UP AND DOWN REQUIREMENTS
In order to prevent unwanted tap position changes, or an inadvertant store, bring the CS and INC high before or con-
currently with the V
CC
pin on powerup. The potentiometer voltages must be applied after this sequence is completed.
During power-up, the data sheet parameters for the DCP do not fully apply until 1 millisecond after V
CC
reaches its
final value. The V
CC
ramp spec is always in effect.
A.C. TIMING
Symbol
t
Cl
t
lD
(5)
t
DI
(5)
t
lL
t
lH
t
lC
t
CPHS
t
CPHNS
(5)
t
IW
(5)
t
CYC
t
R
,
t
F
(5)
t
PU
(5)
t
R
V
CC
(5)
Parameter
Limits
Typ.
(4)
Unit
ns
ns
μs
μs
μs
μs
ms
μs
μs
μs
μs
μs
V/ms
Min.
100
100
1
1
1
1
20
1
Max.
CS to INC setup
INC HIGH to U/D change
U/D to INC setup
INC LOW period
INC HIGH period
INC inactive to CS inactive
CS deselect time (STORE)
CS deselect time (NO STORE)
INC to R
W
change
INC cycle time
INC input rise and fall time
Power-up to wiper stable
V
CC
power-up rate
100
500
4
500
500
50
0.2
CS
INC
U/D
R
W
t
CI
t
IL
t
IH
t
CYC
t
ID
t
DI
t
IW
MI
(3)
t
IC
t
CPHS
t
F
t
R
10%
90%
90%
t
CPHNS
X9319
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