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參數(shù)資料
| 型號： | X9313UMZ-3T1 |
| 廠商： | INTERSIL CORP |
| 元件分類： | 數(shù)字電位計 |
| 英文描述： | Digitally Controlled Potentiometer |
| 中文描述： | 50K DIGITAL POTENTIOMETER, INCREMENT/DECREMENT CONTROL INTERFACE, 32 POSITIONS, PDSO8 |
| 封裝： | ROHS COMPLIANT, PLASTIC, MO-187AA, MSOP-8 |
| 文件頁數(shù)： | 7/12頁 |
| 文件大?。?/td> | 281K |
| 代理商： | X9313UMZ-3T1 |
7
FN8177.5
April 18, 2007
Power-Up and Power-Down Requirements
The recommended power-up sequence is to apply V
CC
/V
SS
first, then the potentiometer voltages. During power-up, the
data sheet parameters for the DCP do not fully apply until
1ms after V
CC
reaches its final value. The V
CC
ramp spec is
always in effect. In order to prevent unwanted tap position
changes, or an inadvertent store, bring the CS and INC high
before or concurrently with the VCC pin on power-up.
AC Operating Characteristics
Over recommended operating conditions unless otherwise stated.
SYMBOL
PARAMETER
LIMITS
UNIT
MIN
TYP
(Note 4)
MAX
t
CI
CS to INC setup
100
ns
t
ID
INC HIGH to U/D change
100
ns
t
DI
U/D to INC setup
2.9
μs
t
IL
INC LOW period
1
μs
t
IH
INC HIGH period
1
μs
t
IC
INC inactive to CS inactive
1
μs
t
CPH
CS deselect time (STORE)
20
ms
t
CPH
CS deselect time (NO STORE)
100
ns
t
IW
INC to V
W
change
5
μs
t
CYC
INC cycle time
2
μs
t
R
, t
F
(Note 5)
INC input rise and fall time
500
μs
t
PU
(Note 5)
Power-up to wiper stable
10
μs
t
R
V
CC
(Note 5)
V
CC
power-up rate
0.2
50
V/ms
t
WR
(Note 5)
Store cycle
10
ms
NOTES:
4. Typical values are for T
A
= +25°C and nominal supply voltage.
5. This parameter is not 100% tested.
CS
INC
U/D
V
W
t
CI
t
IL
t
IH
t
CYC
t
ID
t
DI
t
IW
MI
(SEE NOTE)
t
IC
t
CPH
t
F
t
R
10%
90%
90%
NOTE: MI IN THE AC TIMING DIAGRAM REFERS TO THE MINIMUM INCREMENTAL CHANGE IN THE V
W
OUTPUT DUE TO A CHANGE IN THE WIPER
POSITION.
FIGURE 4. AC TIMING DIAGRAM
X9313
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