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參數(shù)資料
| 型號： | ASC7512M8 |
| 廠商： | Electronic Theatre Controls, Inc. |
| 元件分類： | 溫度/濕度傳感器 |
| 英文描述： | DIGITAL TEMPERATURE SENSOR WITH INTEGRATED FAN CONTROL |
| 中文描述： | 數(shù)字溫度傳感器整合了風(fēng)扇控制 |
| 文件頁數(shù)： | 26/35頁 |
| 文件大小： | 337K |
| 代理商： | ASC7512M8 |
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Andigilog, Inc. 2006
www.andigilog.com
August 2006 - 70A05003
aSC7512
For the current temperature reading T
i
:
No-Spike T
i
= (Discard min and max of (T
i
, T
i-1
, T
i-2
, T
i-3
))/2
Smooth T
i
= (No-Spike T
i
- Smooth T
i-1
)/2
N
+ Smooth T
i-1
If these spikes are not filtered, the CPU fan (if connected to aSC7512) may turn on prematurely or produce unpleasant
noise. For this reason, any zone that is connected to a chipset or processor should have spike smoothing enabled.
Individual system characteristics will determine how large this coefficient should be.
When spike smoothing is enabled, the temperature reading registers will still reflect the current value of the temperature –
not the “smoothed out” value.
ZN1E and ZN2E enable temperature smoothing for zones 1 and 2 respectively.
ZN1-2, ZN1-1 and ZN1-0 control smoothing time for Zone 1.
ZN2-2, ZN2-1 and ZN2-0 control smoothing time for Zone 2.
These registers become read-only when the Ready/Lock/Start/Override register Lock bit is set. Any further attempts to write
to these registers shall have no effect.
0
10
20
30
40
50
60
1
2
3
4
5
6
7
8
9
10 11 12
Figure 10 Representation of What Temperature Is Passed to the aSC7512 Auto Fan Control with (green)
and without (red dashed) Spike Smoothing
Spike Smoothing
Filter Coefficient
ZNn-[2:0]
8
000
7
001
6
010
5
011
4
3
100
101
2
110
1
111
Table 17 Spike Smoothing
PWM Action
Off/Min Bit
At 0% duty below LIMIT
0
At Min PWM Duty below LIMIT
1
Table 18 PWM Output Below Limit Depending on Value of Off/Min
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| ASC7531A | LOW-VOLTAGE 1-WIRE DIGITAL TEMPERATURE SENSOR AND VOLTAGE MONITOR |
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相關(guān)代理商/技術(shù)參數(shù) |
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|---|---|
| ASC7521A | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:LOW- OLTAGE 1-WIRE DIGITAL TEMPERATURE SENSOR |
| ASC7521AM8 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:LOW- OLTAGE 1-WIRE DIGITAL TEMPERATURE SENSOR |
| ASC7531A | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:LOW-VOLTAGE 1-WIRE DIGITAL TEMPERATURE SENSOR AND VOLTAGE MONITOR |
| ASC7531AM10 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:LOW-VOLTAGE 1-WIRE DIGITAL TEMPERATURE SENSOR AND VOLTAGE MONITOR |
| ASC7531B | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:LOW-VOLTAGE 1-WIRE DIGITAL TEMPERATURE SENSOR AND VOLTAGE MONITOR |
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