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參數(shù)資料
| 型號： | W671520P |
| 廠商： | WINBOND ELECTRONICS CORP |
| 元件分類： | 模擬傳輸電路 |
| 英文描述： | TELECOM-SLIC, PQCC28 |
| 封裝： | PLASTIC, LCC-28 |
| 文件頁數(shù)： | 20/42頁 |
| 文件大?。?/td> | 1230K |
| 代理商： | W671520P |
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W671500 SERIES
7.4.2. Test Load
The switch may be used to connect test loads across Tip and Ring. The test loads can provide
external test termination for the device. Proper connection of the uncommitted switch to Tip and Ring
is shown below.
RING
TIP
TEST
LOAD
SW+
SW-
SWC
FIGURE 14: TEST LOAD SWITCHING
The diode in series with the test load blocks current from flowing through the uncommitted switch
when the polarity of the Tip and Ring terminals are reversed. In addition to the Reverse Active mode,
the polarity of Tip and Ring are reversed for half of the ringing cycle. With independent logic control
and the blocking diode, the uncommitted switch may be continuously connected to the Tip and Ring
terminals.
8. TIMING DIAGRAM
As the W671500 family is a completely analog technology there are no timing diagrams.
Publication Release Date: April 2004
- 27 -
Revision 1.0
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