ISL90843 Intersil Corporation, ISL90843 Datasheet - Page 5

• Manufacturer Part Number: ISL90843
• Description: Quad Digital Controlled Potentiometers
• Manufacturer: Intersil Corporation

Operating Specifications
SDA vs SCL Timing
A0 and A1 Pin Timing
NOTES:
10. Roffset = R
12. RINL = [R
13. R
14.
15. This parameter is not 100% tested.
11. RDNL = (R
1. Typical values are for T
2. LSB: [V(RW)
3. ZS error = V(RW)
4. FS error = [V(RW)
5. DNL = [V(RW)
6. INL = [V(RW)
7. V
8.
9. MI =
SYMBOL
(OUTPUT TIMING)
t
t
(INPUT TIMING)
incremental voltage when changing from one tap to an adjacent tap.
Roffset = R
TC
SU:A
HD:A
TC
MATCH
MATCH
R
V
|
R
=
=
255
--------------------------------------------------------------- -
[
--------------------------------------------------------------------------------------------- -
[
= [V(RWx)
Max V RW
= (R
Max Ri
A1 and A0 Setup Time
A1 and A0 Hold Time
[
i
SDA
SCL
Max Ri
Max V RW
– (MI • i) – R
i
0
255
– R
SDA
– R
/
255
MI, when measuring between RW and RL.
i
i,x
(
(
i
– i • LSB – V(RW)
t
/
0
MI, when measuring between RW and RH.
SU:STA
– V(RW)
(
(
i-1
|
– R
(
– V(RW)
/
255. R
)
0
)
255
(
/
/
+
) Min Ri
LSB.
MI-1, for i = 32 to 255.
PARAMETER
i
i,y
–
SDA IN
Min Ri
– V(RWy)
A0, A1
)
)
– V
i
/
A
)
)
MI, for i = 0 to 255, x = 0 to 3 and y = 0 to 3.
SCL
0
255
i-1
i
+
) Min V RW
]
(
= 25°C and 3.3V supply voltage.
0
/
CC
–
MI, for i = 32 to 255.
(
]
Min V RW
]
/
/
LSB-1, for i = 1 to 255. i is the DCP register setting.
255. V(RW)
and R
)
]
/
] 2 ⁄
5
)
LSB.
t
i
(
]
HD:STA
]
Over the recommended operating conditions unless otherwise specified. (Continued)
/
(
LSB, for i = 0 to 255, x = 0 to 3 and y = 0 to 3.
0
(
×
]/LSB for i = 1 to 255.
0
(
---------------- -
125°C
are the measured resistances for the DCP register set to FF hex and 00 hex respectively.
START
10
t
F
)
i
6
255
)
)
i
] 2 ⁄
)
t
t
SU:DAT
SU:A
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.
and V(RW)
Before START condition
After STOP condition
×
---------------- -
125°C
10
6
for i = 16 to 240 decimal, T = -40°C to 85°C. Max( ) is the maximum value of the wiper
t
voltage and Min ( ) is the minimum value of the wiper voltage over the temperature range.
0
HIGH
are V(RW) for the DCP register set to FF hex and 00 hex respectively. LSB is the
CLK 1
ISL90843
TEST CONDITIONS
t
LOW
t
HD:DAT
t
R
t
AA
t
HD:A
t
DH
STOP
MIN
600
600
(NOTE 1)
t
TYP
BUF
t
SU:STO
MAX
March 29, 2006
UNITS
FN8095.2
ns
ns