isl22414 Intersil Corporation, isl22414 Datasheet - Page 6

• Manufacturer Part Number: isl22414
• Description: Single Digitally Controlled Potentiometer Xdcp? , Low Noise, Low Power, Spi? Bus, 256 Taps
• Manufacturer: Intersil Corporation

Operating Specifications
NOTES:
10.
12. Roffset = RW
13. RDNL = (RW
14. RINL = [RW
15.
16. t
17. R
18. Limits should be considered typical and are not production tested.
19. Parts are 100% tested at +25°C. Over temperature limits established by characterization and are not production tested.
11. MI =
4. Typical values are for T
5. LSB: [V(RW)
6. ZS error = V(RW)
7. FS error = [V(RW)
8. DNL = [V(RW)
9. INL = [V(RW)
SYMBOL
(Note 17)
(Note 18)
t
f
t
Cpin
LEAD
t
incremental voltage when changing from one tap to an adjacent tap.
00 hex respectively.
Roffset = RW
R
t
t
TC
SCK
CYC
t
LAG
t
t
t
t
t
t
TC
WC
WH
DIS
WL
t
t
HO
RO
SU
SO
FO
CS
t
t
RI
FI
pu
H
pu
V
V
R
is specified for the highest data rate transfer for the device. Higher value pull-up can be used at lower data rates.
is the time from the end of a Write sequence of SPI serial interface, to the end of the self-timed internal non-volatile write cycle.
|
RW
=
=
--------------------------------------------------------------------------------------------- -
[
--------------------------------------------------------------- -
[
Max V RW
255
SDO pull-up resistor off-chip
capacitance
SPI frequency
SPI clock cycle time
SPI clock high time
SPI clock low time
Lead time
Lag time
SDI, SCK and CS input setup time
SDI, SCK and CS input hold time
SDI, SCK and CS input rise time
SDI, SCK and CS input fall time
SDO output Disable time
SDO output setup time
SDO output valid time
SDO output hold time
SDO output rise time
SDO output fall time
CS deselect time
Max Ri
SCK, SDI, SDO and CS pin
[
Max V RW
Max Ri
i
255
i
– (MI • i) – RW
i
– RW
0
255
(
– RW
i
– i • LSB – V(RW)]/LSB for i = 1 to 255
/
(
MI, when measuring between RW and RL.
– V(RW)
(
(
(
– V(RW)
/
MI, when measuring between RW and RH.
0
)
255
(
/
LSB.
0
+
) Min Ri
i-1
|
–
/
Min Ri
PARAMETER
255. MI is a minimum increment. RW
)
– V
)
i
/
A
)
)
MI -1, for i = 1 to 255.
i
i-1
) Min V RW
+
= +25°C and 3.3V supply voltage.
(
0
CC
–
Min V RW
]
(
]
/
/
LSB-1, for i = 1 to 255. i is the DCP register setting.
255. V(RW)
0
]
)
]
6
/
] 2 ⁄
/
LSB.
)
MI, for i = 1 to 255.
(
]
Over the recommended operating conditions unless otherwise specified. Limits are established by
characterization. (Continued)
(
(
×
+
(
---------------- -
165°C
10
)
i
)
255
)
6
i
] 2 ⁄
)
for i = 16 to 255, 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.
and V(RW)
×
+
---------------- -
165°C
10
Maximum is determined by t
maximum bus load Cb = 30pF, f
R
R
pu
pu
6
= 2k, Cbus = 30pF
= 2k, Cbus = 30pF
for i = 16 to 255 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.
0
are V(RW) for the DCP register set to FF hex and 00 hex respectively. LSB is the
255
ISL22414
TEST CONDITIONS
and RW
0
are the measured resistances for the DCP register set to FF hex and
RO
SCK
and t
= 5MHz
FO
with
(Note 19)
MIN
200
100
100
250
250
150
50
50
10
10
50
0
0
2
(Note 4)
TYP
10
(Note 19)
MAX
100
20
60
60
2
5
July 17, 2007
UNIT
FN6424.0
MHz
kΩ
pF
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
µs