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| SN54LS42J资料 | |
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SN54LS42J PDF Download |
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File Size : 116 KB
Manufacturer:MOT Description:where R15 should be greater than 33 kΩ. Smaller values for C13 will reduce the sensitivity to RF input pulses. The MOSFET turns ON within approxi- mately 1.5 µs (shunting the RF signal to ground) after a noise pulse is detected and then turns OFF over a 15 µs period after the end of the RF gate time. The ON resistance of the MOSFET is about 30 Ω. The slow turn-OFF prevents any additional transients from being introduced into the receiver by the RF gate. The internal gate circuit also includes charge-balancing circuits so that switching transients are canceled and do not appear at the output. These features ensure transient-free switching even when the RF gate is connected to the low-level input stages of a receiver. Note that the RF gate must be connected to a supply to obtain the minimum ON-resistance of the MOSFET gate. This makes it convenient to connect the RF gate in parallel with the receiver mixer output transformer primary. |
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| 1PCS | 100PCS | 1K | 10K | ||
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型 号：SN54LS42J 厂 家：MOT 封 装：DIP 批 号：8612 数 量：18 说 明：绝对原装深圳现货/底价 |
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运 费： 所在地： 新旧程度： |
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| 联系人：龙先生,胡小姐 |
| 电 话：0755-83226907,83229025,83226903 |
| 手 机：13927436669 |
| QQ：1109170345,514620629 |
| MSN：hlh1999@msn.com |
| 传 真：0755-83226930 |
| EMail：sale@cdf-ic.com |
| 公司地址： 深圳市福田区中航路新亚洲电子商城国利大厦710室. |
