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參數(shù)資料
| 型號： | L3000S |
| 廠商： | 意法半導(dǎo)體 |
| 英文描述： | SLIC Kit Optimized for Applications with Both First and Second Generation Combos(用于短波/超短波通信系統(tǒng)的用戶線接口) |
| 中文描述： | 用戶接口工具包優(yōu)化與包括第一代和第二代功放音箱（用于短波/超短波通信系統(tǒng)的用戶線接口應(yīng)用） |
| 文件頁數(shù)： | 9/32頁 |
| 文件大?。?/td> | 298K |
| 代理商： | L3000S |
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RING wiresthe voltagewill increasesto – 24V.
The comparator C1 will change its output voltage
from low to high level.
If the Chip Select input (CS) is low the ONHK out-
put pin will be set to low level (+ 0V) indicating
that the off hookconditionis present.
This off-hook detection circuit can be influenced
by common mode signal present on RING Termi-
nal. The capacitorCs is used to filter this common
mode signal.
In the case of very high common mode signal af-
Figure 4:
Off-hookDetection Circuit in Power Down Mode
ter the detection of a low level on the ONHK out-
put pin, it is suggested to set the SLIC in Stand-
by. In this operating mode the off-hook detection
circuit is not sensitive to the line common mode
signal.
If in Stand-by Mode the off-hook detection is not
confirmed (ONHK output set to high level) we
suggest after few second to set the SLIC again in
PowerDown Mode.
Total operation is managed by line card control-
ler.
L3000S
L3000S - L3092
9/32
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