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| TLC279ID资料 | |
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TLC279ID PDF Download |
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File Size : 116 KB
Manufacturer:TI Description:Ring Detection. Referring to the block diagram in Figure 1, incoming ring detection is performed by the CH1817 and the RI pin is set Low during the 2 second (typical) ring period and is restored to High for the 4 seconds (typical) between rings. During incoming ring signal activity, the RI output is pulsed at the same frequency as the ringing signal, typically 20Hz. Figure 2 contains additional external circuitry which may be used to provide an envelope indication of the ring signal. The internal ring detection circuit is designed to deter false indications due to pulse dialing or noise on the line. |
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| 1PCS | 100PCS | 1K | 10K | ||
| 价 格 | |||||
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型 号：TLC279ID 厂 家：TI 封 装： 批 号：07+ 数 量：23053 说 明：原装正品 |
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运 费：所有运费均有我司承担 所在地：深圳 新旧程度： |
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| 联系人：申小姐 |
| 电 话：0755-83330991,0755-83047629 |
| 手 机：15811820920 |
| QQ：2355514181 |
| MSN：chipstech-int@hotmail.com |
| 传 真：0755-61658118 |
| EMail：sales@chipstech-int.com |
| 公司地址： 深圳市福田区中航路鼎城国际1017 |
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1. 所有我司提供的货物，均为原厂原装正品！ 2. 我们的报价是不含税价格。含税需要增加相应的税点。
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