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| BLM15BB750SN1D资料 | |
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BLM15BB750SN1D PDF Download |
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File Size : 116 KB
Manufacturer:MURATA Description:All digital clocks generate unwanted energy in their harmonics. Conventional digital clocks are square waves with a duty cycle that is very close to 50%. Because of this 50/50 duty cycle, digital clocks generate most of their harmonic energy in the odd harmonics, i.e., third, fifth, seventh, etc. It is possible to reduce the amount of energy contained in the fundamental and odd harmonics by increasing the bandwidth of the funda- mental clock frequency. Conventional digital clocks have a very high Q factor, which means that all of the energy at that frequency is concentrated in a very narrow bandwidth, conse- quently, higher energy peaks. Regulatory agencies test electronic equipment by the amount of peak energy radiated from the equipment. By reducing the peak energy at the funda- mental and harmonic frequencies, the equipment under test is able to satisfy agency requirements for EMI. Conventional methods of reducing EMI have been to use shielding, filtering, multilayer PCBs, etc. The SM561 uses the approach of reducing the peak energy in the clock by increasing the clock bandwidth, and lowering the Q. |
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| 1PCS | 100PCS | 1K | 10K | ||
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型 号：BLM15BB750SN1D 厂 家：MURATA 封 装：07+ 批 号：SMD 数 量：240000 说 明：【自己库存】 |
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运 费： 所在地： 新旧程度： |
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| 联系人：陈生 |
| 电 话：0755-82565235.0755-88391555.0755-82807567 |
| 手 机：13798377798 |
| QQ：819175396,302677436,343000888 |
| MSN：mwdsmd@hotmail.com,xiaowei700@hotmail.com |
| 传 真：0755-83177555 |
| EMail：mwdsmd@126.com |
| 公司地址： 深圳市福田区振中路鼎诚国际1018室 |
