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參數(shù)資料
| 型號(hào)： | ISL22429 |
| 廠(chǎng)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(xiàn), 128抽頭電位器) |
| 中文描述： | 低噪聲，低功耗，SPI總線(xiàn)，128抽頭，雨刷，只有（低噪聲，低功率和SPI總線(xiàn)，128抽頭電位器） |
| 文件頁(yè)數(shù)： | 5/12頁(yè) |
| 文件大?。?/td> | 357K |
| 代理商： | ISL22429 |
5
FN6332.1
September 26, 2006
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 14)
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 15)
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
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)]/LSB for i = 1 to 127
11. V
MATCH
= [V(RWx)
i
– V(RWy)
i
]
/
LSB, for i = 1 to 127, x = 0 to 3 and y = 0 to 3.
12.
for i = 16 to 112 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.
13. 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.
14. Rpu is specified for the highest data rate transfer for the device. Higher value pull-up can be used at lower data rates.
15. This parameter is not 100% tested.
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
----------------
×
=
ISL22429
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