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參數(shù)資料
| 型號(hào)： | 8XC51SL |
| 廠商： | Intel Corp. |
| 英文描述： | Low Voltage Keyboard Controller(低電壓鍵盤控制器) |
| 中文描述： | 低壓控制鍵盤（低電壓鍵盤控制器） |
| 文件頁數(shù)： | 22/23頁 |
| 文件大?。?/td> | 256K |
| 代理商： | 8XC51SL |
8XC51SL/LOW VOLTAGE 8XC51SL
A/D Glossary of Terms
Absolute ErrorD
The maximum difference between
corresponding actual and ideal code transitions. Ab-
solute Error accounts for all deviations of an actual
converter from an ideal converter.
Actual CharacteristicD
The characteristic of an ac-
tual converter. The characteristic of a given convert-
er may vary over temperature, supply voltage, and
frequency conditions. An actual characteristic rarely
has ideal first and last transition locations or ideal
code widths. It may even vary over multiple conver-
sions under the same conditions.
Break-Before-MakeD
The property of a multiplexer
which guarantees that a previously selected channel
will be deselected before a new channel is selected
(e.g., the converter will not short inputs together).
Channel-to-Channel MatchingD
The difference be-
tween corresponding code transitions of actual char-
acteristics taken from different channels under the
same temperature, voltage and frequency condi-
tions.
CharacteristicD
A graph of input voltage versus the
resultant output code for an A/D converter. It de-
scribes the transfer function of the A/D converter.
CodeD
The digital value output by the converter.
Code CenterD
The voltage corresponding to the
midpoint between two adjacent code transitions.
Code TransitionD
The point at which the converter
changes from an output code of Q, to a code of Q
a
1. The input voltage corresponding to a code tran-
sition is defined to be that voltage which is equally
likely to produce either of two adjacent codes.
Code WidthD
The voltage corresponding to the dif-
ference between two adjacent code transitions.
CrosstalkD
See ‘‘Off-Isolation’’.
DC Input LeakageD
Leakage current to ground
from an analog input pin.
Differential
tween the ideal and actual code widths of the termi-
nal based characteristic.
Non-LinearityD
The
difference
be-
FeedthroughD
Attenuation of a voltage applied on
the selected channel of the A/D Converter after the
sample window closes.
Full Scale ErrorD
The difference between the ex-
pected and actual input voltage corresponding to
the full scale code transition.
Ideal CharacteristicD
A characteristic with its first
code transition at V
IN
e
0.5 LSB, its last code tran-
sition at V
IN
e
(V
REF
b
1.5 LSB) and all code
widths equal to one LSB.
Input ResistanceD
The effective series resistance
from the analog input pin to the sample capacitor.
LSBDLeast Significant BitD
The voltage corre-
sponding to the full scale voltage divided by 2
n
,
where n is the number of bits of resolution of the
converter. For an 8-bit converter with a reference
voltage of 5.12V, one LSB is 20 mV. Note that this is
different than digital LSBs since an uncertainty of
two LSBs, when referring to an A/D converter,
equals 40 mV. (This has been confused with an un-
certainty of two digital bits, which would mean four
counts, or 80 mV).
MonotonicD
The property of successive approxi-
mation converters which guarantees that increasing
input voltages produce adjacent codes of increasing
value, and that decreasing input voltages produce
adjacent codes of decreasing value.
No Missed CodesD
For each and every output
code, there exists a unique input voltage range
which produces that code only.
Non-LinearityD
The maximum deviation of code
transitions of the terminal based characteristic from
the corresponding code transitions of the ideal char-
acteristic.
Off-IsolationD
Attenuation of a voltage applied on a
deselected channel of the A/D converter. (Also re-
ferred to as Crosstalk.)
RepeatabilityD
The
sponding code transitions from different actual char-
acteristics taken from the same converter on the
same channel at the same temperature, voltage and
frequency conditions.
difference
between
corre-
ResolutionD
The number of input voltage levels
that the converter can unambiguously distinguish
between. Also defines the number of useful bits of
information which the converter can return.
Sample DelayD
The delay from receiving the start
conversion signal to when the sample window
opens.
Sample Delay UncertaintyD
The variation in the
sample delay.
Sample TimeD
The time that the sample window is
open.
Sample Time UncertaintyD
The variation in the
sample time.
22
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 8XC51SL.LOWVOLTAGE8XC51SL | 制造商:INTEL 制造商全稱:Intel Corporation 功能描述:KEYBOARD CONTROLLER |
| 8XC51SL/LOWVOLTAGE8XC51SL | 制造商:INTEL 制造商全稱:Intel Corporation 功能描述:8XC51SL. LOW VOLTAGE 8XC51SL - KEYBOARD CONTROLLER |
| 8XC51SLLOWVOLTAGE8XC51SL | 制造商:INTEL 制造商全稱:Intel Corporation 功能描述:KEYBOARD CONTROLLER |
| 8XC52 | 制造商:INTEL 制造商全稱:Intel Corporation 功能描述:CHMOS SINGLE-CHIP 8-BIT MICROCONTROLLER |
| 8XC54 | 制造商:INTEL 制造商全稱:Intel Corporation 功能描述:CHMOS SINGLE-CHIP 8-BIT MICROCONTROLLER |
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