isl22323 Intersil Corporation, isl22323 Datasheet - Page 8

• Manufacturer Part Number: isl22323
• Description: Dual Digitally Controlled Potentiometer Xdcp? , Low Noise, Low Power, I2c? Bus, 256 Taps
• Manufacturer: Intersil Corporation

Operating Specifications
NOTES:
10. V
12. MI =
13. Roffset = RW
14. RDNL = (RW
15. RINL = [RW
16. R
17.
18. This parameter is not 100% tested.
19. t
11.
4. Typical values are for T
5. LSB: [V(R
6. ZS error = V(RW)
7. FS error = [V(RW)
8. DNL = [V(RW)
9. INL = [V(RW)
SYMBOL
(Note 18)
(Note 18)
t
t
incremental voltage when changing from one tap to an adjacent tap.
hex respectively.
Roffset = RW
write cycle.
TC
TC
SU:A
HD:A
WC
Rpu
Cb
MATCH
MATCH
V
R
is the time from a valid STOP condition at the end of a Write sequence of I
|
RW
=
=
--------------------------------------------------------------------------------------------- -
[
= [V(RWx)i -V(RWy)i]/LSB, for i = 0 to 255, x = 0 to 1, y = 0 to 1.
= [(Rx)i -(Ry)i]/MI, for i = 0 to 255, x = 0 to 1, y = 0 to 1.
--------------------------------------------------------------- -
[
Max V RW
255
Max Ri
W
[
Capacitive loading of SDA or SCL
SDA and SCL bus pull-up resistor
off-chip
A1 and A0 setup time
A1 and A0 hold time
Max V RW
Max Ri
)
i
255
i
– (MI • i) – RW
i
– RW
0
255
(
– RW
i
(
– i • LSB – V(RW)
/
MI, when measuring between RW and RL.
– V(RW)
(
(
– V(R
(
/
MI, when measuring between RW and RH.
0
)
255
(
/
0
+
LSB.
) Min Ri
|
i-1
–
/
Min Ri
255. MI is a minimum increment. RW
)
)
W
– V
PARAMETER
i
/
)
A
)
MI -1, for i = 16 to 255.
i-1
i
)
+
) Min V RW
0
= +25°C and 3.3V supply voltage.
(
CC
–
]
Min V RW
]
(
/
/
255. V(R
LSB-1, for i = 1 to 255. i is the DCP register setting.
0
)
]
]
/
] 2 ⁄
LSB.
/
)
8
MI, for i = 16 to 255.
(
]
Over the recommended operating conditions unless otherwise specified. (Continued)
(
0
(
×
]/LSB for i = 1 to 255
(
+
---------------- -
165°C
W
10
)
)
255
i
)
6
)
i
] 2 ⁄
)
and V(R
for i = 16 to 240, T = -40°C to +125°C. Max( ) is the maximum value of the resistance and Min ( ) is
the minimum value of the resistance over the temperature range.
×
+
---------------- -
165°C
10
Total on-chip and off-chip
Maximum is determined by t
For Cb = 400pF, max is about 2~2.5kΩ
For Cb = 40pF, max is about 15~20kΩ
Before START condition
After STOP condition
6
W
)
0
for i = 16 to 240 decimal, T = -40°C to +125°C. Max( ) is the maximum value of the wiper
voltage and Min ( ) is the minimum value of the wiper voltage over the temperature range.
are V(R
255
and RW
ISL22323
TEST CONDITIONS
W
) for the DCP register set to FF hex and 00 hex respectively. LSB is the
0
are the measured resistances for the DCP register set to FF hex and 00
2
C serial interface, to the end of the self-timed internal non-volatile
R
and t
F
MIN
600
600
10
1
(NOTE 4)
TYP
MAX
400
May 31, 2007
UNIT
FN6422.0
kΩ
pF
ns
ns