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參數(shù)資料
| 型號： | X95840 |
| 元件分類： | 數(shù)字電位計(jì) |
| 英文描述： | Quad Digital Controlled Potentiometers (XDCP)(四數(shù)控電位器（XDCP）) |
| 中文描述： | 四數(shù)字（數(shù)字電位器）（四數(shù)控電位器（數(shù)字電位器）控制電位器） |
| 文件頁數(shù)： | 6/12頁 |
| 文件大?。?/td> | 797K |
| 代理商： | X95840 |
X95840
6 of 12
REV 1.16 7/28/04
www.xicor.com
Notes:
(1) Typical values are for T
A
= 25°C and 3.3V supply voltage.
(2) LSB: [V(RW)
255
– V(RW)
0
]
/
255. V(RW)
255
and V(RW)
0
are V(RW) for the DCP register set to FF hex and 00 hex respectively. LSB
is the incremental voltage when changing from one tap to an adjacent tap.
(3) ZS error = V(RW)
0
/
LSB.
(4) FS error = [V(RW)
255
– V
CC
]
/
LSB.
(5) DNL = [V(RW)
i
– V(RW)
i-1
]
/
LSB-1, for i = 1 to 255. i is the DCP register setting.
(6) INL = V(RW)
i
– i - LSB – V(RW) for i = 1 to 255.
(7) V
MATCH
= [V(RWx)
i
– V(RWy)
i
]
/
LSB, for i = 0 to 255, x = 0 to 3 and y = 0 to 3.
Max V RW
)
–
Max V RW
)
i
+
for i = 16 to 240 decimal, T = -40°C to 85°C. Max( ) is the maximum value of the wiper voltage and Min ( ) is the minimum value of
the wiper voltage over the temperature range.
(9) MI =
|
R
255
– R
0
|
/
255. R
255
and R
0
are the measured resistances for the DCP register set to FF hex and 00 hex respectively.
(10) Roffset = R
0
/
MI, when measuring between RW and RL.
Roffset = R
255
/
MI, when measuring between RW and RH.
(11) RDNL = (R
i
– R
i-1
)
/
MI, for i = 32 to 255.
(12) RINL = [R
i
– (MI i) – R
0
]
/
MI, for i = 32 to 255.
(13) R
MATCH
= (R
i,x
– R
i,y
)
/
MI, for i = 0 to 255, x = 0 to 3 and y = 0 to 3.
6
125°C
for i = 32 to 255, T = -40°C to 85°C. Max( ) is the maximum value of the resistance and Min ( ) is the minimum value of the resis-
tance over the temperature range.
(15) This parameter is not 100% tested.
(16) t
WC
is the minimum cycle time to be allowed for any non-volatile Write by the user, unless Acknowledge Polling is used. It is the
time from a valid STOP condition at the end of a Write sequence of a 2-wire serial interface Write operation, to the end of the self-
timed internal non-volatile write cycle.
(8)
TC
V
)
)
Min V RW
)
i
[
]
2
---------------------------------------------------------------------------------------------
6
125°C
----------------
×
=
TC
R
Max Ri
+
Min Ri
]
)
)
[
]
2
------------------------------–
----------------
×
=
(14)
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