參數(shù)資料
型號(hào)： X95840
廠商： Intersil Corporation
元件分類： 數(shù)字電位計(jì)
英文描述： Quad Digital Controlled Potentiometers
中文描述： 四數(shù)控電位器
文件頁(yè)數(shù)： 6/13頁(yè)
文件大?。?/td> 1145K
代理商： X95840
6
FN8213.1
September 27, 2005
WP, A0, A1, and A2 Pin Timing
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)
0
)]/LSB 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
)
Min V RW
–
Max V RW
)
i
Min V RW
+
8.
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.
]
Max Ri
)
Min Ri
)
+
[
]
2
125°C
14.
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 resistance 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.
t
HD:WPA
SCL
SDA IN
WP, A0, A1, or A2
t
SU:WPA
Clk 1
START
STOP
TC
V
)
)
)
i
[
]
2
---------------------------------------------------------------------------------------------
125°C
----------------
×
=
TC
R
------------------------------–
6
----------------
×
=
X95840
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