无源晶振就是石英晶体谐振器的别称，英文名（crystal），无源晶体没有电压的问题，信号电平是可变的，主要用在各种电子线路中起产生频率的作用。是有2个引脚的无极性元件，需要借助于时钟电路才能产生振荡信号，自身无法振荡起来，分为直插式与贴片式。
爱普生晶体谐振器的两款3225四脚贴片晶振FA-238与FA-238V合并着一起，无缝覆盖了无源晶振最常用的12MHz~60MHz频段。随着EPSON精度和稳定性更好的TSX-3225晶振的推出，16MHz至48MHz已经可以由更高精度的TSX3225系列完全替代了。而12MHz至15.9999MHz可以选择FA-238V，50MHz以上的频率应该选型FA-238系列。
因此，尽管3225贴片晶振是目前的主流规格，但是爱普生晶振代理商康华尔电子FA-238与FA-238V两款晶振的现货库存品种合作一起也不及TSX-3225型号的20%。因此我们对设计工程师的建议是新项目晶振选型，尽可能选择后者。需要注意的是爱普生3225晶振目前只有一款FA-238A汽车级晶振。
12MHz至60MHz无源晶振Q22FA23V0003700石英晶体谐振器3225mm晶振选型
| 产品编码 |
 爱普生晶振
|
 型号
|
 频率
|
 负载电容
|
 精度
|
 工作温度
|
| Q22FA23V0001200 | 3.2x2.5x0.7mm | FA-238V | 13.560000MHz | 12pF | +/-50ppm | -40 to +80°C |
| Q22FA23V0001800 | 3.2x2.5x0.7mm | FA-238V | 12.288000MHz | 12pF | +/-50ppm | -20 to +70°C |
| Q22FA23V0002200 | 3.2x2.5x0.7mm | FA-238V | 12.000000MHz | 10pF | +/-30ppm | -20 to +70°C |
| Q22FA23V0002600 | 3.2x2.5x0.7mm | FA-238V | 13.000000MHz | 10pF | +/-50ppm | -20 to +70°C |
| Q22FA23V0002700 | 3.2x2.5x0.7mm | FA-238V | 14.745600MHz | 20pF | +/-50ppm | -20 to +70°C |
| Q22FA23V0002800 | 3.2x2.5x0.7mm | FA-238V | 12.000000MHz | 15pF | +/-50ppm | -20 to +70°C |
| Q22FA23V0002900 | 3.2x2.5x0.7mm | FA-238V | 13.000000MHz | 20pF | +/-50ppm | -20 to +70°C |
| Q22FA23V0003000 | 3.2x2.5x0.7mm | FA-238V | 13.000000MHz | 20pF | +/-30ppm | -20 to +60°C |
| Q22FA23V0003300 | 3.2x2.5x0.7mm | FA-238V | 12.288000MHz | 12pF | +/-30ppm | -20 to +70°C |
| Q22FA23V0003700 | 3.2x2.5x0.7mm | FA-238V | 14.318180MHz | 20pF | +/-50ppm | -20 to +70°C |
| Q22FA23V0004400 | 3.2x2.5x0.7mm | FA-238V | 12.000000MHz | 20pF | +/-50ppm | -20 to +70°C |
| Q22FA23V0004800 | 3.2x2.5x0.7mm | FA-238V | 13.000000MHz | 7pF | +/-50ppm | -20 to +70°C |
| Q22FA23V0005200 | 3.2x2.5x0.7mm | FA-238V | 13.560000MHz | 10pF | +/-50ppm | -20 to +70°C |
| Q22FA23V0006800 | 3.2x2.5x0.7mm | FA-238V | 14.318000MHz | 12pF | +/-50ppm | -20 to +70°C |
| Q22FA23V0006900 | 3.2x2.5x0.7mm | FA-238V | 12.000000MHz | 10pF | +/-15ppm | -20 to +70°C |
| Q22FA23V0008200 | 3.2x2.5x0.7mm | FA-238V | 14.318180MHz | 16pF | +/-50ppm | -20 to +70°C |
| Q22FA23V0008500 | 3.2x2.5x0.7mm | FA-238V | 12.288000MHz | 8pF | +/-50ppm | -20 to +70°C |
| Q22FA23V0008600 | 3.2x2.5x0.7mm | FA-238V | 14.745600MHz | 12pF | +/-50ppm | -20 to +70°C |
| 产品编码 |
  尺寸
|
  型号
|
  频率
|
  负载电容
|
  精度
|
  工作温度
|
| Q22FA2380000100 | 3.2x2.5x0.7mm | FA-238 | 20.000000MHz | 12pF | +/-50ppm | -20 to +70°C |
| Q22FA2380000200 | 3.2x2.5x0.7mm | FA-238 | 20.000000MHz | 18pF | +/-50ppm | -20 to +70°C |
| Q22FA2380001100 | 3.2x2.5x0.7mm | FA-238 | 16.934400MHz | 10pF | +/-50ppm | -20 to +70°C |
| Q22FA2380001300 | 3.2x2.5x0.7mm | FA-238 | 25.000000MHz | 10pF | +/-50ppm | -20 to +70°C |
| Q22FA2380002200 | 3.2x2.5x0.7mm | FA-238 | 27.000000MHz | 12pF | +/-50ppm | -20 to +70°C |
| Q22FA2380002800 | 3.2x2.5x0.7mm | FA-238 | 27.000000MHz | 18pF | +/-50ppm | -20 to +70°C |
| Q22FA2380003500 | 3.2x2.5x0.7mm | FA-238 | 20.000000MHz | 12pF | +/-30ppm | -20 to +70°C |
| Q22FA2380004100 | 3.2x2.5x0.7mm | FA-238 | 24.000000MHz | 20pF | +/-50ppm | -20 to +70°C |
| Q22FA2380004400 | 3.2x2.5x0.7mm | FA-238 | 24.000000MHz | 7pF | +/-50ppm | -20 to +70°C |
| Q22FA2380004700 | 3.2x2.5x0.7mm | FA-238 | 16.000000MHz | 7pF | +/-50ppm | -20 to +70°C |
| Q22FA2380004800 | 3.2x2.5x0.7mm | FA-238 | 49.152000MHz | 12pF | +/-50ppm | -20 to +70°C |
| Q22FA2380006300 | 3.2x2.5x0.7mm | FA-238 | 24.576000MHz | 12pF | +/-50ppm | -20 to +70°C |
| Q22FA2380006500 | 3.2x2.5x0.7mm | FA-238 | 24.000000MHz | 12pF | +/-50ppm | -20 to +70°C |
| Q22FA2380007500 | 3.2x2.5x0.7mm | FA-238 | 50.000000MHz | 12pF | +/-50ppm | -20 to +70°C |
| Q22FA2380007600 | 3.2x2.5x0.7mm | FA-238 | 48.000000MHz | 10pF | +/-50ppm | -20 to +70°C |
| Q22FA2380007800 | 3.2x2.5x0.7mm | FA-238 | 48.000000MHz | 18pF | +/-50ppm | -20 to +70°C |
| Q22FA2380007900 | 3.2x2.5x0.7mm | FA-238 | 27.000000MHz | 10pF | +/-50ppm | -20 to +70°C |
3225mm体积非常小的SMD晶振器件,是民用小型无线数码产品的最佳选择,小体积的晶振被广泛应用到,手机蓝牙,GPS定位系统,无线通讯集,高精度和高频率的稳定性能,非常好的减少电磁干扰的影响,是民用无线数码产品最好的选择,符合RoHS/无铅.
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