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| s-80c52bdr-12资料 | |
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s-80c52bdr-12 |
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file size : 116 kb
manufacturer: description:balanced ringing is applied to the line by setting rc (pin 30) to 5v and connecting the ringing signal (20hz) to rv (pin 35) as shown in figure 4. a 1.2vrms input will give approximately 60vrms output across tip and ring, sufficient for short loop slic applications. the slic is capable of detecting an off hook condition during ringing by filtering out the large a.c. component. a 0.47uf cap should be connected to pin cp6 (pin 29) to form such filter. this filter allows a true off hook condition to be monitored at shk (pin 33). when an off hook condition is detected by the slic, it will remove the 20hz ac ringing voltage and revert to constant current mode. the local controller will, however, still need to deselect rc (set it to 0v). |
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| 1pcs | 100pcs | 1k | 10k | ||
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型 号：s-80c52bdr-12 厂 家： 封 装：0628 批 号：smd 数 量：7000 说 明： |
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运 费： 所在地： 新旧程度： |
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| 联系人：林浩/林妮 |
| 电 话：0755-82532799/82532766/83989559 |
| 手 机：13510168121/13725556003 |
| qq：496982847/351622092 |
| msn：linearic@hotmail.com |
| 传 真：0755-82532766 |
| email：maxim_zi@126.com |
| 公司地址： 深圳市福田区佳和大厦b座1802室 门市部：华强广场 q2a114展销柜 |
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