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參數(shù)資料
| 型號： | ISL22419 |
| 廠商： | Intersil Corporation |
| 英文描述： | Low Noise, Low Power, SPI Bus, 128 Taps, Wiper Only(低噪聲,低功率，SPI總線, 128抽頭電位器) |
| 中文描述： | 低噪聲，低功耗，SPI總線，128抽頭，雨刷，只有（低噪聲，低功率和SPI總線，128抽頭電位器） |
| 文件頁數(shù)： | 5/13頁 |
| 文件大小： | 365K |
| 代理商： | ISL22419 |
5
FN6311.0
June 28, 2006
Notes:
5. Typical values are for T
A
= 25°C and 3.3V supply voltage.
6. LSB: [V(R
W
)
127
– V(R
W
)
0
]
/
127. V(R
W
)
127
and V(R
W
)
0
are V(R
W
) for the DCP register set to 7F hex and 00 hex respectively. LSB is the
incremental voltage when changing from one tap to an adjacent tap.
7. ZS error = V(RW)
0
/
LSB.
8. FS error = [V(RW)
127
– V
CC
]
/
LSB.
9. DNL = [V(RW)
i
– V(RW)
i-1
]
/
LSB-1, for i = 1 to 127. i is the DCP register setting.
10. INL = [V(RW)
i
– (i LSB) – V(RW)
0
]/LSB for i = 1 to 127
11.
for i = 16 to 127 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.
12. t
WC
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.
13. R
pu
is specified for the highest data rate transfer for the device. Higher value pullup can be used at lower data rates.
14. This parameter is not 100% tested.
Hysteresis
SHDN, SCK, SDI, and CS Input Buffer
Hysteresis
0.05*
V
CC
V
V
OL
SDO Output Buffer LOW Voltage
I
OL
= 4mA
0
0.4
V
R
pu
(Note 13)
SDO Pull-up Resistor Off-chip
Maximum is determined by t
RO
and t
FO
with
maximum bus load Cbus = 30pF, f
SCK
=
5MHz
2
k
Cpin
(Note 14)
SHDN, SCK, SDI, SDO and CS Pin
Capacitance
10
pF
f
SCK
SPI Frequency
5
MHz
t
CYC
SPI Clock Cycle Time
200
ns
t
WH
SPI Clock High Time
100
ns
t
WL
SPI Clock Low Time
100
ns
t
LEAD
Lead Time
250
ns
t
LAG
Lag Time
250
ns
t
SU
SDI, SCK and CS Input Setup Time
50
ns
t
H
SDI, SCK and CS Input Hold Time
50
ns
t
RI
SDI, SCK and CS Input Rise Time
10
ns
t
FI
SDI, SCK and CS Input Fall Time
10
20
ns
t
DIS
SDO Output Disable Time
0
100
ns
t
V
SDO Output Valid Time
350
ns
t
HO
SDO Output Hold Time
0
ns
t
RO
SDO Output Rise Time
R
pu
= 2k, Cbus = 30pF
60
ns
t
FO
SDO Output Fall Time
R
pu
= 2k, Cbus = 30pF
60
ns
t
CS
CS Deselect Time
2
μs
Operating Specifications
Over the recommended operating conditions unless otherwise specified.
(Continued)
SYMBOL
PARAMETER
TEST CONDITIONS
MIN
TYP
(NOTE 5)
MAX
UNIT
TC
V
Max V RW
-----------------------------------------------–
)
)
)
Max V RW
)
i
Min V RW
)
i
+
[
]
2
6
165°C
----------------
×
=
ISL22419
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