领先全球的富士晶振公司关于晶振不起振问题的原因与解决方法
晶振在电子设备中扮演着关键的角色,用于产生稳定的时钟信号。然而,有时晶振可能会遇到不起振的问题,这可能导致设备无法正常工作。本文将详细介绍导致晶振不起振的各种原因,并提供示例来说明每种情况,同时提供相应的解决方法。
1. 损坏或破损的晶振元件示例:在检查电子设备时,发现晶振元件的外壳存在明显的裂纹。这可能会导致晶振元件内部的振荡电路受损。
解决方法:需要更换损坏的晶振元件,并确保新的晶振元件正确连接。
2. 错误的电源连接
示例:假设一个电路板上的晶振需要3.3V电源供应,但由于连接错误,它被连接到5V电源,这将导致晶振元件不起振。
解决方法:检查电源连接,确保电源电压和极性正确,以恢复晶振的正常工作。
3. 不稳定的电源电压
示例:电源电压的不稳定性,如电压波动或噪声,可能会导致晶振不稳定或不起振。例如,当晶振所需的电压电源波动较大时,振荡可能会受到干扰。
解决方法:使用示波器监测电源电压,如果发现波动或噪声问题,可以考虑添加电源滤波电路或稳压器来稳定电源。
4. 电磁干扰
示例:将晶振电路放置在强电磁干扰源附近,如高频设备或强电磁场区域,可能导致晶振不稳定或无法振荡。
解决方法:将设备移动到电磁干扰较小的位置,或者采取屏蔽措施来减少外部电磁干扰的影响。
5. 连接问题
示例:在检查晶振引脚时,发现其中一个引脚的焊接点松动,导致电路连接不可靠,影响振荡。
解决方法:修复不良的连接,重新焊接引脚,确保连接牢固。
6. 温度问题
示例:在极端温度条件下,如极寒的冬季或高温的夏季,晶振可能无法在其规定的温度范围内起振,导致不工作。
解决方法:选择适合工作温度范围的晶振元件,或者在低温环境中采取绝热措施来维持温度。
7. 晶振频率设置错误
示例:如果系统设计人员错误地选择了不正确频率的晶振,例如选择了一个与所需频率不匹配的晶振元件,那么振荡可能无法开始。
解决方法:检查晶振元件的规格,确保其频率与应用需求匹配。
8. 接地问题
示例:电路板的地线连接不良,导致晶振电路受到电磁干扰,影响振荡。
解决方法:修复地线连接,确保地线连接牢固且稳定。
9. 环境振动
示例:在振动或机械冲击环境下使用的设备中,振动可能导致晶振元件不起振。
解决方法:采取振动抑制措施,如使用橡胶垫或固定装置,以减少振动对晶振的影响。
10. 微控制器/电路问题
示例:石英晶振连接到微控制器,但微控制器未正确配置或其复位电路不正常。
解决方法:检查微控制器和相关电路的配置,确保其正常工作。
晶振不起振问题可能由多种原因引起,但通过仔细的排查和解决,可以有效地解决这些问题,确保设备的稳定性和可靠性。在解决问题时,需要根据实际情况逐一检查相关因素,并采取适当的措施来修复或更换受影响的组件,以确保晶振正常振荡,使设备正常工作。
原厂编码 | 生产商 | 型号 | 频率 | 频率稳定度 | 频率容差 | 负载电容 | 工作温度 |
FCX3M01340007I3L | Fuji晶振 | FCX-3M | 13.4 MHz | ±50ppm | ±20ppm | 7pF | -40°C ~ 125°C |
FCX3M05200007U3L | Fuji晶振 | FCX-3M | 52 MHz | ±50ppm | ±20ppm | 7pF | -40°C ~ 105°C |
FCX3M01228807Y1G | Fuji晶振 | FCX-3M | 12.288 MHz | ±20ppm | ±10ppm | 7pF | -40°C ~ 85°C |
FCX3M01352806Y3G | Fuji晶振 | FCX-3M | 13.5288 MHz | ±20ppm | ±20ppm | 6pF | -40°C ~ 85°C |
FCX3M03900008E1D | Fuji晶振 | FCX-3M | 39 MHz | ±10ppm | ±10ppm | 8pF | -20°C ~ 70°C |
FCX3M02454506I1L | Fuji晶振 | FCX-3M | 24.5454 MHz | ±50ppm | ±10ppm | 6pF | -40°C ~ 125°C |
FCX3M04915204U3L | Fuji晶振 | FCX-3M | 49.152 MHz | ±50ppm | ±20ppm | 4pF | -40°C ~ 105°C |
FCX3M01340007E1D | Fuji晶振 | FCX-3M | 13.4 MHz | ±10ppm | ±10ppm | 7pF | -20°C ~ 70°C |
FCX3M04800018Y3J | Fuji晶振 | FCX-3M | 48 MHz | ±30ppm | ±20ppm | 18pF | -40°C ~ 85°C |
FCX3M01431804U1L | Fuji晶振 | FCX-3M | 14.3182 MHz | ±50ppm | ±10ppm | 4pF | -40°C ~ 105°C |
FCX3M01968706U1L | Fuji晶振 | FCX-3M | 19.6875 MHz | ±50ppm | ±10ppm | 6pF | -40°C ~ 105°C |
FCX3M01968706E1D | Fuji晶振 | FCX-3M | 19.6875 MHz | ±10ppm | ±10ppm | 6pF | -20°C ~ 70°C |
FCX3M04915204E1D | Fuji晶振 | FCX-3M | 49.152 MHz | ±10ppm | ±10ppm | 4pF | -20°C ~ 70°C |
FCX3M01693406E1D | Fuji晶振 | FCX-3M | 16.9344 MHz | ±10ppm | ±10ppm | 6pF | -20°C ~ 70°C |
FCX3M02266006U3L | Fuji晶振 | FCX-3M | 22.66 MHz | ±50ppm | ±20ppm | 6pF | -40°C ~ 105°C |
FCX3M01600016Y1F | Fuji晶振 | FCX-3M | 16 MHz | ±15ppm | ±10ppm | 16pF | -40°C ~ 85°C |
FCX3M01228808I1L | Fuji晶振 | FCX-3M | 12.288 MHz | ±50ppm | ±10ppm | 8pF | -40°C ~ 125°C |
FCX3M03200009E1D | Fuji晶振 | FCX-3M | 32 MHz | ±10ppm | ±10ppm | 9pF | -20°C ~ 70°C |
FCX3M04915204Y3G | Fuji晶振 | FCX-3M | 49.152 MHz | ±20ppm | ±20ppm | 4pF | -40°C ~ 85°C |
FCX3M01968706I3L | Fuji晶振 | FCX-3M | 19.6875 MHz | ±50ppm | ±20ppm | 6pF | -40°C ~ 125°C |
FCX3M04400008E3D | Fuji晶振 | FCX-3M | 44 MHz | ±10ppm | ±20ppm | 8pF | -20°C ~ 70°C |
FCX3M02822407Y3G | Fuji晶振 | FCX-3M | 28.224 MHz | ±20ppm | ±20ppm | 7pF | -40°C ~ 85°C |
FCX3M02454507I3L | Fuji晶振 | FCX-3M | 24.5454 MHz | ±50ppm | ±20ppm | 7pF | -40°C ~ 125°C |
FCX3M01693404I1L | Fuji晶振 | FCX-3M | 16.9344 MHz | ±50ppm | ±10ppm | 4pF | -40°C ~ 125°C |
FCX3M02454506U1L | Fuji晶振 | FCX-3M | 24.5454 MHz | ±50ppm | ±10ppm | 6pF | -40°C ~ 105°C |
FCX3M02822408U3L | Fuji晶振 | FCX-3M | 28.224 MHz | ±50ppm | ±20ppm | 8pF | -40°C ~ 105°C |
FCX3M01928006U3L | Fuji晶振 | FCX-3M | 19.28 MHz | ±50ppm | ±20ppm | 6pF | -40°C ~ 105°C |
FCX3M01228807Y3G | Fuji晶振 | FCX-3M | 12.288 MHz | ±20ppm | ±20ppm | 7pF | -40°C ~ 85°C |
FCX3M02457618E3L | Fuji晶振 | FCX-3M | 24.576 MHz | ±50ppm | ±20ppm | 18pF | -20°C ~ 70°C |
FCX3M01340006U3L | Fuji晶振 | FCX-3M | 13.4 MHz | ±50ppm | ±20ppm | 6pF | -40°C ~ 105°C |
FCX3M03072008U1L | Fuji晶振 | FCX-3M | 30.72 MHz | ±50ppm | ±10ppm | 8pF | -40°C ~ 105°C |
FCX3M02822407Y1G | Fuji晶振 | FCX-3M | 28.224 MHz | ±20ppm | ±10ppm | 7pF | -40°C ~ 85°C |
FCX3M01431804I1L | Fuji晶振 | FCX-3M | 14.3182 MHz | ±50ppm | ±10ppm | 4pF | -40°C ~ 125°C |
FCX3M01500008Y3G | Fuji晶振 | FCX-3M | 15 MHz | ±20ppm | ±20ppm | 8pF | -40°C ~ 85°C |
FCX3M05200007Y1G | Fuji晶振 | FCX-3M | 52 MHz | ±20ppm | ±10ppm | 7pF | -40°C ~ 85°C |
FCX3M01500007Y1G | Fuji晶振 | FCX-3M | 15 MHz | ±20ppm | ±10ppm | 7pF | -40°C ~ 85°C |
FCX3M05200008U1L | Fuji晶振 | FCX-3M | 52 MHz | ±50ppm | ±10ppm | 8pF | -40°C ~ 105°C |
FCX3M02457610P1D | Fuji晶振 | FCX-3M | 24.576 MHz | ±10ppm | ±10ppm | 10pF | -10°C ~ 60°C |
FCX3M02700008Y1G | Fuji晶振 | FCX-3M | 27 MHz | ±20ppm | ±10ppm | 8pF | -40°C ~ 85°C |
FCX3M01928006U1L | Fuji晶振 | FCX-3M | 19.28 MHz | ±50ppm | ±10ppm | 6pF | -40°C ~ 105°C |
FCX3M03800008E3D | Fuji晶振 | FCX-3M | 38 MHz | ±10ppm | ±20ppm | 8pF | -20°C ~ 70°C |
FCX3M01228808I3L | Fuji晶振 | FCX-3M | 12.288 MHz | ±50ppm | ±20ppm | 8pF | -40°C ~ 125°C |
FCX3M01431804I3L | Fuji晶振 | FCX-3M | 14.3182 MHz | ±50ppm | ±20ppm | 4pF | -40°C ~ 125°C |
FCX3M03900008U1L | Fuji晶振 | FCX-3M | 39 MHz | ±50ppm | ±10ppm | 8pF | -40°C ~ 105°C |
FCX3M02454507E3D | Fuji晶振 | FCX-3M | 24.5454 MHz | ±10ppm | ±20ppm | 7pF | -20°C ~ 70°C |
FCX3M01968704E3D | Fuji晶振 | FCX-3M | 19.6875 MHz | ±10ppm | ±20ppm | 4pF | -20°C ~ 70°C |
FCX3M01500008E1D | Fuji晶振 | FCX-3M | 15 MHz | ±10ppm | ±10ppm | 8pF | -20°C ~ 70°C |
FCX3M02211804E1D | Fuji晶振 | FCX-3M | 22.1184 MHz | ±10ppm | ±10ppm | 4pF | -20°C ~ 70°C |
FCX3M04096006I1L | Fuji晶振 | FCX-3M | 40.96 MHz | ±50ppm | ±10ppm | 6pF | -40°C ~ 125°C |
FCX3M01693404U1L | Fuji晶振 | FCX-3M | 16.9344 MHz | ±50ppm | ±10ppm | 4pF | -40°C ~ 105°C |
FCX3M03800008U1L | Fuji晶振 | FCX-3M | 38 MHz | ±50ppm | ±10ppm | 8pF | -40°C ~ 105°C |
FCX3M02454506Y1G | Fuji晶振 | FCX-3M | 24.5454 MHz | ±20ppm | ±10ppm | 6pF | -40°C ~ 85°C |
FCX3M01300008I3L | Fuji晶振 | FCX-3M | 13 MHz | ±50ppm | ±20ppm | 8pF | -40°C ~ 125°C |
FCX3M02266006Y3G | Fuji晶振 | FCX-3M | 22.66 MHz | ±20ppm | ±20ppm | 6pF | -40°C ~ 85°C |
FCX3M01340006Y1G | Fuji晶振 | FCX-3M | 13.4 MHz | ±20ppm | ±10ppm | 6pF | -40°C ~ 85°C |
FCX3M02266006Y1G | Fuji晶振 | FCX-3M | 22.66 MHz | ±20ppm | ±10ppm | 6pF | -40°C ~ 85°C |
FCX3M02700008I3L | Fuji晶振 | FCX-3M | 27 MHz | ±50ppm | ±20ppm | 8pF | -40°C ~ 125°C |
FCX3M05200008I1L | Fuji晶振 | FCX-3M | 52 MHz | ±50ppm | ±10ppm | 8pF | -40°C ~ 125°C |
FCX3M03072008E1D | Fuji晶振 | FCX-3M | 30.72 MHz | ±10ppm | ±10ppm | 8pF | -20°C ~ 70°C |
FCX3M04000004E1D | Fuji晶振 | FCX-3M | 40 MHz | ±10ppm | ±10ppm | 4pF | -20°C ~ 70°C |
FCX3M04096007I1L | Fuji晶振 | FCX-3M | 40.96 MHz | ±50ppm | ±10ppm | 7pF | -40°C ~ 125°C |
FCX3M02822408E1D | Fuji晶振 | FCX-3M | 28.224 MHz | ±10ppm | ±10ppm | 8pF | -20°C ~ 70°C |
FCX3M04800018E5J | Fuji晶振 | FCX-3M | 48 MHz | ±30ppm | ±30ppm | 18pF | -20°C ~ 70°C |
FCX3M04915204Y1G | Fuji晶振 | FCX-3M | 49.152 MHz | ±20ppm | ±10ppm | 4pF | -40°C ~ 85°C |
FCX3M02454507E1D | Fuji晶振 | FCX-3M | 24.5454 MHz | ±10ppm | ±10ppm | 7pF | -20°C ~ 70°C |
FCX3M02266007E1D | Fuji晶振 | FCX-3M | 22.66 MHz | ±10ppm | ±10ppm | 7pF | -20°C ~ 70°C |
FCX3M01340006U1L | Fuji晶振 | FCX-3M | 13.4 MHz | ±50ppm | ±10ppm | 6pF | -40°C ~ 105°C |
FCX3M01500008Y1G | Fuji晶振 | FCX-3M | 15 MHz | ±20ppm | ±10ppm | 8pF | -40°C ~ 85°C |
FCX3M02266006U1L | Fuji晶振 | FCX-3M | 22.66 MHz | ±50ppm | ±10ppm | 6pF | -40°C ~ 105°C |
FCX3M02457618E5J | Fuji晶振 | FCX-3M | 24.576 MHz | ±30ppm | ±30ppm | 18pF | -20°C ~ 70°C |
FCX3M02200006U1L | Fuji晶振 | FCX-3M | 22 MHz | ±50ppm | ±10ppm | 6pF | -40°C ~ 105°C |
FCX3M03900008Y1G | Fuji晶振 | FCX-3M | 39 MHz | ±20ppm | ±10ppm | 8pF | -40°C ~ 85°C |
FCX3M01843208E1D | Fuji晶振 | FCX-3M | 18.432 MHz | ±10ppm | ±10ppm | 8pF | -20°C ~ 70°C |
FCX3M01382408Y3G | Fuji晶振 | FCX-3M | 13.824 MHz | ±20ppm | ±20ppm | 8pF | -40°C ~ 85°C |
FCX3M01928004Y1G | Fuji晶振 | FCX-3M | 19.28 MHz | ±20ppm | ±10ppm | 4pF | -40°C ~ 85°C |
FCX3M02500018Y3G | Fuji晶振 | FCX-3M | 25 MHz | ±20ppm | ±20ppm | 18pF | -40°C ~ 85°C |
FCX3M02457608Y3G | Fuji晶振 | FCX-3M | 24.576 MHz | ±20ppm | ±20ppm | 8pF | -40°C ~ 85°C |
FCX3M02492304I1L | Fuji晶振 | FCX-3M | 24.9231 MHz | ±50ppm | ±10ppm | 4pF | -40°C ~ 125°C |
FCX3M01300008Y1G | Fuji晶振 | FCX-3M | 13 MHz | ±20ppm | ±10ppm | 8pF | -40°C ~ 85°C |
FCX3M01300008E3D | Fuji晶振 | FCX-3M | 13 MHz | ±10ppm | ±20ppm | 8pF | -20°C ~ 70°C |
FCX3M03900008Y3G | Fuji晶振 | FCX-3M | 39 MHz | ±20ppm | ±20ppm | 8pF | -40°C ~ 85°C |
FCX3M02266007I3L | Fuji晶振 | FCX-3M | 22.66 MHz | ±50ppm | ±20ppm | 7pF | -40°C ~ 125°C |
FCX3M01340007I1L | Fuji晶振 | FCX-3M | 13.4 MHz | ±50ppm | ±10ppm | 7pF | -40°C ~ 125°C |
FCX3M02700008U1L | Fuji晶振 | FCX-3M | 27 MHz | ±50ppm | ±10ppm | 8pF | -40°C ~ 105°C |
FCX3M04400007U3L | Fuji晶振 | FCX-3M | 44 MHz | ±50ppm | ±20ppm | 7pF | -40°C ~ 105°C |
FCX3M04400007Y1G | Fuji晶振 | FCX-3M | 44 MHz | ±20ppm | ±10ppm | 7pF | -40°C ~ 85°C |
FCX3M01968704E1D | Fuji晶振 | FCX-3M | 19.6875 MHz | ±10ppm | ±10ppm | 4pF | -20°C ~ 70°C |
FCX3M04915204E3D | Fuji晶振 | FCX-3M | 49.152 MHz | ±10ppm | ±20ppm | 4pF | -20°C ~ 70°C |
FCX3M04400007U1L | Fuji晶振 | FCX-3M | 44 MHz | ±50ppm | ±10ppm | 7pF | -40°C ~ 105°C |
FCX3M02200006E3D | Fuji晶振 | FCX-3M | 22 MHz | ±10ppm | ±20ppm | 6pF | -20°C ~ 70°C |
FCX3M02266007I1L | Fuji晶振 | FCX-3M | 22.66 MHz | ±50ppm | ±10ppm | 7pF | -40°C ~ 125°C |