參數(shù)資料
型號(hào): LM99CIMMX
廠商: National Semiconductor Corporation
元件分類: 溫度/濕度傳感器
英文描述: 【1C Accurate, High Temperature, Remote Diode Temperature Sensor with Two-Wire Interface
中文描述: 【集成電路準(zhǔn)確,高溫,遠(yuǎn)程二極管溫度傳感器,兩線接口
文件頁(yè)數(shù): 13/20頁(yè)
文件大?。?/td> 349K
代理商: LM99CIMMX
1.0 Functional Description
(Continued)
1.11 DIGITAL FILTER
D2
0
0
1
1
D1
0
1
0
1
Filter
No Filter
Level 1
Level 1
Level 2
In order to suppress erroneous remote temperature readings
due to noise, the LM99 incorporates a user-configured digital
filter. The filter is accessed in the FILTER and ALERT CON-
FIGURE REGISTER at BFh. The filter can be set according
to the table shown.
Level 2 sets maximum filtering.
Figure 8
depict the filter output to in response to a step input
and an impulse input.
Figure 9
depicts the digital filter in use
in a Pentium 4 processor system. Note that the two curves,
with filter and without, have been purposely offset so that
both responses can be clearly seen. Inserting the filter does
not induce an offset as shown.
20053825
a) Step Response
20053826
b) Impulse Response
FIGURE 8. Filter Output Response to a Step Input
20053827
FIGURE 9. Digital Filter Response in a Pentium 4 processor System. The filter on and off curves were purposely
offset to better show noise performance.
L
www.national.com
13
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參數(shù)描述
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LM9V381 制造商:SHARP 制造商全稱:Sharp Electrionic Components 功能描述:Color STN-LCD Module
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