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| HC-49SMD 贴片2P | |||
| 请点击您需要的参数一起加到购物车,找不到您需要的请联系客服 | |||
| 标准频率 | 负载电容 | 频率偏差 | 点击购买 |
| 3.6864MHZ | 20PF | 20PPM | rel="nofollow" Buy |
| 4MHZ | 20PF | 20PPM | rel="nofollow" Buy |
| 6MHZ | 20PF | 20PPM | rel="nofollow" Buy |
| 7.3728MHZ | 20PF | 20PPM | rel="nofollow" Buy |
| 8MHZ | 20PF | 20PPM | rel="nofollow" Buy |
| 10MHZ | 20PF | 20PPM | rel="nofollow" Buy |
| 11.0592MHZ | 20PF | 20PPM | rel="nofollow" Buy |
| 12MHZ | 20PF | 20PPM | rel="nofollow" Buy |
| 13.560MHZ | 20PF | 20PPM | rel="nofollow" Buy |
| 16.384MHZ | 20PF | 20PPM | rel="nofollow" Buy |
| 20MHZ | 20PF | 20PPM | rel="nofollow" Buy |
| 22.1184MHZ | 20PF | 20PPM | rel="nofollow" Buy |
| 24.576MHZ | 20PF | 20PPM | rel="nofollow" Buy |
| 24MHZ | 20PF | 20PPM | rel="nofollow" Buy |
| 25MHZ | 20PF | 20PPM | rel="nofollow" Buy |
| 26MHZ | 20PF | 20PPM | rel="nofollow" Buy |
| 27.120MHZ | 20PF | 20PPM | rel="nofollow" Buy |
| 27MHZ | 20PF | 20PPM | rel="nofollow" Buy |
| 28.6363MHZ | 20PF | 20PPM | rel="nofollow" Buy |
| 30MHZ | 20PF | 20PPM | rel="nofollow" Buy |
| 32MHZ | 20PF | 20PPM | rel="nofollow" Buy |
| 如您需要购买同类别的其他系列产品，请点击以下链接 | ||
| 产品型号 | 产品规格 | 点击购买 |
| HC-49US | 11.5x4.5x3.68mm | rel="nofollow" Buy |
| HC-49SMD | 11.4x4.8x3.8mm | rel="nofollow" Buy |
| HC-49UM | 11.05x4.65x13.46mm | rel="nofollow" Buy |
| YSX321SL | 3225 4P | rel="nofollow" Buy |
| YSX530GA | 5032 2P | rel="nofollow" Buy |
| YSX531SL | 5032 4P | rel="nofollow" Buy |
| YT-26 | 2060 2P | rel="nofollow" Buy |
| YT-38 | 3080 2P | rel="nofollow" Buy |
| R315 | D11,F11,TO39 | rel="nofollow" Buy |
| R433 | D11,F11,TO39 | rel="nofollow" Buy |
振荡电路不匹配导致晶振不起振？
影响振荡电路的三个指标：频率误差、负性阻抗、激励电平。
频率误差太大，导致实际频率偏移标称频率从而引起晶振不起振
解决办法：选择合适的PPM值的产品。
负性阻抗过大太小都会导致晶振不起振。
解决办法：负性阻抗过大，可以将晶振外接电容Cd和Cg的值调大来降低负性阻抗;负性阻抗太小，则可以将晶振外接电容Cd和Cg的值调小来增大负性阻抗。一般而言，负性阻抗值应满足不少于晶振标称阻抗3-5倍。
激励电平过大或者过小也将会导致晶振不起振
解决办法：通过调整电路中的Rd的大小来调节振荡电路对晶振输出的激励电平。
询价
