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| YSX530GA 5032 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 |
| 8MHZ | 20PF | 20PPM | rel="nofollow" Buy |
| 11.0592MHZ | 20PF | 20PPM | rel="nofollow" Buy |
| 12MHZ | 20PF | 20PPM | rel="nofollow" Buy |
| 14.7456MHZ | 20PF | 20PPM | rel="nofollow" Buy |
| 14.31818MHZ | 20PF | 20PPM | rel="nofollow" Buy |
| 18.432MHZ | 20PF | 20PPM | rel="nofollow" Buy |
| 22.1184MHZ | 18PF | 20PPM | rel="nofollow" Buy |
| 24.576MHZ | 20PF | 20PPM | rel="nofollow" Buy |
| 24MHZ | 12PF | 20PPM | rel="nofollow" Buy |
| 24MHZ | 20PF | 20PPM | rel="nofollow" Buy |
| 25MHZ | 20PF | 20PPM | rel="nofollow" Buy |
| 27MHZ | 12PF | 20PPM | rel="nofollow" Buy |
| 28.6363MHZ | 20PF | 20PPM | rel="nofollow" Buy |
| 30MHZ | 20PF | 20PPM | rel="nofollow" Buy |
| 32MHZ | 20PF | 20PPM | rel="nofollow" Buy |
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| 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的原因及解决方法
影响晶振的三个因素：频率误差 负性阻抗 激励电平
频率误差
频率若误差太大会导致实际频率偏移标称频率，引起晶振不起振的现象，解决方法是替换或选择合适PPM值的产品。
负性阻抗
负性阻抗若过大或太小都会导致晶振不起振。解决方法若负性阻抗过大，可以将晶振的外接电容Cd或Cg的值调大来降低负性阻抗，若负性阻抗过小，可以将晶振外接电容Cd或Cg的值调小增大负性阻抗。通常负性阻抗值不少于晶振的标称阻抗3-5倍。
激励电平
激励电平的大小也将会引起晶振不起振。解决方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。通常激励电平越小越好，处理功耗低之外，还跟振荡电路的稳定性和晶振的寿命相关。
询价
