石英晶体振荡器电路应用笔记
IC内部有一个反相放大器(相移约为180°)形成部分振荡器电路。外部电路由石英晶体、Cx1、Cx2和Rv组成ca的另一个相移180°，满足360(或0)的反馈要求使电路以石英晶体给出的频率振荡
Rout，Cout:振荡器IC的输出电阻/输出电容Rin，Cin:石英晶体振荡器IC的输入电阻/-电容(起始值CMOS: 1M / 3pF) 这些值应在制造商的IC数据手册中说明，但很少具体说明尽管它们对电路设计很重要。Rout可以通过上的电压降来计算已知的负载电阻器
石英晶体的fL标称频率石英晶体的R1 ESR(通常指定为上限) 石英晶体的C0静态电容(通常规定为上限)石英晶体的C1动态(运动)电容(很少指定)连接的CH1、CH2电容(约。0,8pF)，可以忽略不计，因为包括在C0石英晶体的CL标称负载电容石英晶体的L1动态电感(很少指定)这些值在石英晶体制造商的数据表中规定。确切的数值可以通过用网络分析仪分析一批石英晶体得到.
| Manufacturer Part Number原厂编码 | Manufacturer厂家 | Series型号 | Type 系列 | Frequency | Frequency Stability频率稳定度 | Package / Case包装/封装 |
| FOXSDLF/120-20 | Fox Electronics | HC49SDLF | MHz Crystal | 12MHz | ±50ppm | HC49/US |
| FOXSDLF/120-20 | Fox Electronics | HC49SDLF | MHz Crystal | 12MHz | ±50ppm | HC49/US |
| FOXSDLF/120-20 | Fox Electronics | HC49SDLF | MHz Crystal | 12MHz | ±50ppm | HC49/US |
| FOXSDLF/0368-20 | Fox Electronics | HC49SDLF | MHz Crystal | 3.6864MHz | ±50ppm | HC49/US |
| FOXSDLF/0368-20 | Fox Electronics | HC49SDLF | MHz Crystal | 3.6864MHz | ±50ppm | HC49/US |
| FOXSDLF/0368-20 | Fox Electronics | HC49SDLF | MHz Crystal | 3.6864MHz | ±50ppm | HC49/US |
| FOXSDLF/115-20 | Fox Electronics | HC49SDLF | MHz Crystal | 11.0592MHz | ±50ppm | HC49/US |
| FOXSDLF/115-20 | Fox Electronics | HC49SDLF | MHz Crystal | 11.0592MHz | ±50ppm | HC49/US |
| FOXSDLF/115-20 | Fox Electronics | HC49SDLF | MHz Crystal | 11.0592MHz | ±50ppm | HC49/US |
| FX135A-327 | Fox Electronics | FX135A | kHz Crystal (Tuning Fork) | 32.768kHz | - | 2-SMD, No Lead |
| FX135A-327 | Fox Electronics | FX135A | kHz Crystal (Tuning Fork) | 32.768kHz | - | 2-SMD, No Lead |
| FX135A-327 | Fox Electronics | FX135A | kHz Crystal (Tuning Fork) | 32.768kHz | - | 2-SMD, No Lead |
| FSRLF327 | Fox Electronics | FSRLF | kHz Crystal (Tuning Fork) | 32.768kHz | - | 4-SOJ, 5.50mm pitch |
| FSRLF327 | Fox Electronics | FSRLF | kHz Crystal (Tuning Fork) | 32.768kHz | - | 4-SOJ, 5.50mm pitch |
| FSRLF327 | Fox Electronics | FSRLF | kHz Crystal (Tuning Fork) | 32.768kHz | - | 4-SOJ, 5.50mm pitch |
| FSXLF327 | Fox Electronics | FSXLF | kHz Crystal (Tuning Fork) | 32.768kHz | - | 4-SMD, Flat Lead, 3 Leads |
| FSXLF327 | Fox Electronics | FSXLF | kHz Crystal (Tuning Fork) | 32.768kHz | - | 4-SMD, Flat Lead, 3 Leads |
| FSXLF327 | Fox Electronics | FSXLF | kHz Crystal (Tuning Fork) | 32.768kHz | - | 4-SMD, Flat Lead, 3 Leads |
| FOXSLF/080-20 | Fox Electronics | HC49SLF | MHz Crystal | 8MHz | ±50ppm | HC49/US |
| FQ5032B-12.000 | Fox Electronics | C5BQ | MHz Crystal | 12MHz | ±30ppm | 4-SMD, No Lead |
| FQ5032B-12.000 | Fox Electronics | C5BQ | MHz Crystal | 12MHz | ±30ppm | 4-SMD, No Lead |
| FQ5032B-12.000 | Fox Electronics | C5BQ | MHz Crystal | 12MHz | ±30ppm | 4-SMD, No Lead |
| FQ5032B-25.000 | Fox Electronics | C5BQ | MHz Crystal | 25MHz | ±30ppm | 4-SMD, No Lead |
| FQ5032B-25.000 | Fox Electronics | C5BQ | MHz Crystal | 25MHz | ±30ppm | 4-SMD, No Lead |
| FQ5032B-25.000 | Fox Electronics | C5BQ | MHz Crystal | 25MHz | ±30ppm | 4-SMD, No Lead |
| FSMLF327 | Fox Electronics | FSMLF | kHz Crystal (Tuning Fork) | 32.768kHz | - | 4-SOJ, 2.29mm pitch |
| FSMLF327 | Fox Electronics | FSMLF | kHz Crystal (Tuning Fork) | 32.768kHz | - | 4-SOJ, 2.29mm pitch |
| FSMLF327 | Fox Electronics | FSMLF | kHz Crystal (Tuning Fork) | 32.768kHz | - | 4-SOJ, 2.29mm pitch |
| FQ7050B-8.000 | Fox Electronics | C7BQ | MHz Crystal | 8MHz | ±30ppm | 4-SMD, No Lead |
| FQ7050B-8.000 | Fox Electronics | C7BQ | MHz Crystal | 8MHz | ±30ppm | 4-SMD, No Lead |
| FQ7050B-8.000 | Fox Electronics | C7BQ | MHz Crystal | 8MHz | ±30ppm | 4-SMD, No Lead |
| FQ7050B-7.3728 | Fox Electronics | C7BQ | MHz Crystal | 7.3728MHz | ±30ppm | 4-SMD, No Lead |
| FQ7050B-7.3728 | Fox Electronics | C7BQ | MHz Crystal | 7.3728MHz | ±30ppm | 4-SMD, No Lead |
| FQ7050B-7.3728 | Fox Electronics | C7BQ | MHz Crystal | 7.3728MHz | ±30ppm | 4-SMD, No Lead |
| FQ1045A-6.000 | Fox Electronics | FQ1045A | MHz Crystal | 6MHz | ±30ppm | 2-SMD, No Lead |
| FQ1045A-6.000 | Fox Electronics | FQ1045A | MHz Crystal | 6MHz | ±30ppm | 2-SMD, No Lead |
| FQ1045A-6.000 | Fox Electronics | FQ1045A | MHz Crystal | 6MHz | ±30ppm | 2-SMD, No Lead |
| FQ1045A-4.000 | Fox Electronics | FQ1045A | MHz Crystal | 4MHz | ±30ppm | 2-SMD, No Lead |
| FQ1045A-4.000 | Fox Electronics | FQ1045A | MHz Crystal | 4MHz | ±30ppm | 2-SMD, No Lead |
| FQ1045A-4.000 | Fox Electronics | FQ1045A | MHz Crystal | 4MHz | ±30ppm | 2-SMD, No Lead |
| FOXLF024S | Fox Electronics | HC49ULF | MHz Crystal | 2.4576MHz | ±50ppm | HC49/U |
| FOXSDLF/160-20 | Fox Electronics | HC49SDLF | MHz Crystal | 16MHz | ±50ppm | HC49/US |
| FOXSDLF/160-20 | Fox Electronics | HC49SDLF | MHz Crystal | 16MHz | ±50ppm | HC49/US |
| FOXSDLF/160-20 | Fox Electronics | HC49SDLF | MHz Crystal | 16MHz | ±50ppm | HC49/US |
| FOXSDLF/200-20 | Fox Electronics | HC49SDLF | MHz Crystal | 20MHz | ±50ppm | HC49/US |
| FOXSDLF/200-20 | Fox Electronics | HC49SDLF | MHz Crystal | 20MHz | ±50ppm | HC49/US |
| FOXSDLF/200-20 | Fox Electronics | HC49SDLF | MHz Crystal | 20MHz | ±50ppm | HC49/US |
| FOXSDLF/080-20 | Fox Electronics | HC49SDLF | MHz Crystal | 8MHz | ±50ppm | HC49/US |
| FOXSDLF/080-20 | Fox Electronics | HC49SDLF | MHz Crystal | 8MHz | ±50ppm | HC49/US |
| FOXSDLF/080-20 | Fox Electronics | HC49SDLF | MHz Crystal | 8MHz | ±50ppm | HC49/US |
| FOXSDLF/250F-20 | Fox Electronics | HC49SDLF | MHz Crystal | 25MHz | ±50ppm | HC49/US |
| FOXSDLF/250F-20 | Fox Electronics | HC49SDLF | MHz Crystal | 25MHz | ±50ppm | HC49/US |
| FOXSDLF/250F-20 | Fox Electronics | HC49SDLF | MHz Crystal | 25MHz | ±50ppm | HC49/US |
| FOXSDLF/147-20 | Fox Electronics | HC49SDLF | MHz Crystal | 14.7456MHz | ±50ppm | HC49/US |
| FOXSDLF/147-20 | Fox Electronics | HC49SDLF | MHz Crystal | 14.7456MHz | ±50ppm | HC49/US |
| FOXSDLF/147-20 | Fox Electronics | HC49SDLF | MHz Crystal | 14.7456MHz | ±50ppm | HC49/US |
| FOXSDLF/240F-20 | Fox Electronics | HC49SDLF | MHz Crystal | 24MHz | ±50ppm | HC49/US |
| FOXSDLF/240F-20 | Fox Electronics | HC49SDLF | MHz Crystal | 24MHz | ±50ppm | HC49/US |
| FOXSDLF/240F-20 | Fox Electronics | HC49SDLF | MHz Crystal | 24MHz | ±50ppm | HC49/US |
| FOXSDLF/080R-20/TR | Fox Electronics | HC49SDLF | MHz Crystal | 8MHz | ±50ppm | HC49/US |
| FOXSDLF/080R-20/TR | Fox Electronics | HC49SDLF | MHz Crystal | 8MHz | ±50ppm | HC49/US |
| FOXSDLF/080R-20/TR | Fox Electronics | HC49SDLF | MHz Crystal | 8MHz | ±50ppm | HC49/US |
| FQ3225B-12.000 | Fox Electronics | FQ3225B | MHz Crystal | 12MHz | ±50ppm | 4-SMD, No Lead |
| FQ3225B-12.000 | Fox Electronics | FQ3225B | MHz Crystal | 12MHz | ±50ppm | 4-SMD, No Lead |
| FQ3225B-12.000 | Fox Electronics | FQ3225B | MHz Crystal | 12MHz | ±50ppm | 4-SMD, No Lead |
| FOXSLF/200-20 | Fox Electronics | HC49SLF | MHz Crystal | 20MHz | ±50ppm | HC49/US |
| FOXSLF/120-20 | Fox Electronics | HC49SLF | MHz Crystal | 12MHz | ±50ppm | HC49/US |
IC输入端的Ca有效电容为IC的Cin、杂散电容*之和PCB(4～6pF)，石英晶体CH2的体电容(0,8pF)，以及分立冷凝器C12。起始值:1，1...1.2倍氯IC输出端的Cb有效电容为PCB杂散电容*之和(4~6pF)，石英晶体CH1的体电容(~ 0,8pF)和离散冷凝器C11。起始值:2xCaRv串联电阻(应始终在布局中提供，即使后来用0欧姆)。设计中的有效串联电阻是Rv和Rout之和。*例如*可以通过测量未安装的PCB来发现杂散电容。模拟: GEYER提供了Y-QUARTZ应用程序，这是一个工具，除了其他功能之外，还可以模拟优化皮尔斯石英晶体振荡器的特性。通过输入上面的内容 值您可以可视化和改变反馈的振幅和相位特性电路，由石英晶体和周围元件组成)，用于可靠的振荡而不超过石英晶体的最大驱动水平。
| FOXSLF/040 | Fox Electronics | HC49SLF | MHz Crystal | 4MHz | ±50ppm | HC49/US |
| FOXSLF/184-20 | Fox Electronics | HC49SLF | MHz Crystal | 18.432MHz | ±50ppm | HC49/US |
| FOXSLF/036S | Fox Electronics | HC49SLF | MHz Crystal | 3.579545MHz | ±50ppm | HC49/US |
| FOXSLF/221-20 | Fox Electronics | HC49SLF | MHz Crystal | 22.1184MHz | ±50ppm | HC49/US |
| FOXSLF/100-20 | Fox Electronics | HC49SLF | MHz Crystal | 10MHz | ±50ppm | HC49/US |
| FX252BS-16.000 | Fox Electronics | FX252B | MHz Crystal | 16MHz | ±50ppm | 4-SMD, No Lead |
| FX252BS-16.000 | Fox Electronics | FX252B | MHz Crystal | 16MHz | ±50ppm | 4-SMD, No Lead |
| FX252BS-16.000 | Fox Electronics | FX252B | MHz Crystal | 16MHz | ±50ppm | 4-SMD, No Lead |
| FQ5032B-20.000 | Fox Electronics | C5BQ | MHz Crystal | 20MHz | ±30ppm | 4-SMD, No Lead |
| FQ5032B-20.000 | Fox Electronics | C5BQ | MHz Crystal | 20MHz | ±30ppm | 4-SMD, No Lead |
| FQ5032B-20.000 | Fox Electronics | C5BQ | MHz Crystal | 20MHz | ±30ppm | 4-SMD, No Lead |
| FQ7050B-6.000 | Fox Electronics | C7BQ | MHz Crystal | 6MHz | ±30ppm | 4-SMD, No Lead |
| FQ7050B-6.000 | Fox Electronics | C7BQ | MHz Crystal | 6MHz | ±30ppm | 4-SMD, No Lead |
| FQ7050B-6.000 | Fox Electronics | C7BQ | MHz Crystal | 6MHz | ±30ppm | 4-SMD, No Lead |
| FOXLF100-20 | Fox Electronics | HC49ULF | MHz Crystal | 10MHz | ±50ppm | HC49/U |
| FOXLF200-20 | Fox Electronics | HC49ULF | MHz Crystal | 20MHz | ±50ppm | HC49/U |
| FOXLF080-20 | Fox Electronics | HC49ULF | MHz Crystal | 8MHz | ±50ppm | HC49/U |
| FOXLF115-20 | Fox Electronics | HC49ULF | MHz Crystal | 11.0592MHz | ±50ppm | HC49/U |
| NC38LF-327 | Fox Electronics | NC38LF | kHz Crystal (Tuning Fork) | 32.768kHz | - | Cylindrical Can, Radial |
| FOXLF040 | Fox Electronics | HC49ULF | MHz Crystal | 4MHz | ±50ppm | HC49/U |
| NC26LF-327 | Fox Electronics | NC26LF | kHz Crystal (Tuning Fork) | 32.768kHz | - | Cylindrical Can, Radial |
| FOXLF036S | Fox Electronics | HC49ULF | MHz Crystal | 3.579545MHz | ±50ppm | HC49/U |
| FQ3225B-25.000 | Fox Electronics | FQ3225B | MHz Crystal | 25MHz | ±50ppm | 4-SMD, No Lead |
| FQ3225B-25.000 | Fox Electronics | FQ3225B | MHz Crystal | 25MHz | ±50ppm | 4-SMD, No Lead |
| FQ3225B-25.000 | Fox Electronics | FQ3225B | MHz Crystal | 25MHz | ±50ppm | 4-SMD, No Lead |
| FQ1045A-3.6864 | Fox Electronics | FQ1045A | MHz Crystal | 3.6864MHz | ±30ppm | 2-SMD, No Lead |
| FQ1045A-3.6864 | Fox Electronics | FQ1045A | MHz Crystal | 3.6864MHz | ±30ppm | 2-SMD, No Lead |
| FQ1045A-3.6864 | Fox Electronics | FQ1045A | MHz Crystal | 3.6864MHz | ±30ppm | 2-SMD, No Lead |
| FOXLF018S | Fox Electronics | HC49ULF | MHz Crystal | 1.8432MHz | ±50ppm | HC49/U |
| FOXSDLF/036S | Fox Electronics | HC49SDLF | MHz Crystal | 3.579545MHz | ±50ppm | HC49/US |
| FOXSDLF/036S | Fox Electronics | HC49SDLF | MHz Crystal | 3.579545MHz | ±50ppm | HC49/US |
| FOXSDLF/036S | Fox Electronics | HC49SDLF | MHz Crystal | 3.579545MHz | ±50ppm | HC49/US |
| FOXSDLF/120R-20/TR | Fox Electronics | HC49SDLF | MHz Crystal | 12MHz | ±50ppm | HC49/US |
| FOXSDLF/120R-20/TR | Fox Electronics | HC49SDLF | MHz Crystal | 12MHz | ±50ppm | HC49/US |
| FOXSDLF/120R-20/TR | Fox Electronics | HC49SDLF | MHz Crystal | 12MHz | ±50ppm | HC49/US |
| FSRLF327-6 | Fox Electronics | FSRLF | kHz Crystal (Tuning Fork) | 32.768kHz | - | 4-SOJ, 5.50mm pitch |
| FSRLF327-6 | Fox Electronics | FSRLF | kHz Crystal (Tuning Fork) | 32.768kHz | - | 4-SOJ, 5.50mm pitch |
| FSRLF327-6 | Fox Electronics | FSRLF | kHz Crystal (Tuning Fork) | 32.768kHz | - | 4-SOJ, 5.50mm pitch |
| FOXLF115 | Fox Electronics | HC49ULF | MHz Crystal | 11.0592MHz | ±50ppm | HC49/U |
| FQ3225B-24.000 | Fox Electronics | FQ3225B | MHz Crystal | 24MHz | ±50ppm | 4-SMD, No Lead |
| FQ3225B-24.000 | Fox Electronics | FQ3225B | MHz Crystal | 24MHz | ±50ppm | 4-SMD, No Lead |
| FQ3225B-24.000 | Fox Electronics | FQ3225B | MHz Crystal | 24MHz | ±50ppm | 4-SMD, No Lead |
| FOXLF0368S | Fox Electronics | HC49ULF | MHz Crystal | 3.6864MHz | ±50ppm | HC49/U |
| FOXSDLF/184-20 | Fox Electronics | HC49SDLF | MHz Crystal | 18.432MHz | ±50ppm | HC49/US |
| FOXSDLF/184-20 | Fox Electronics | HC49SDLF | MHz Crystal | 18.432MHz | ±50ppm | HC49/US |
| FOXSDLF/184-20 | Fox Electronics | HC49SDLF | MHz Crystal | 18.432MHz | ±50ppm | HC49/US |
| FOXSDLF/060-20 | Fox Electronics | HC49SDLF | MHz Crystal | 6MHz | ±50ppm | HC49/US |
| FOXSDLF/060-20 | Fox Electronics | HC49SDLF | MHz Crystal | 6MHz | ±50ppm | HC49/US |
| FOXSDLF/060-20 | Fox Electronics | HC49SDLF | MHz Crystal | 6MHz | ±50ppm | HC49/US |
| FOXSDLF/040 | Fox Electronics | HC49SDLF | MHz Crystal | 4MHz | ±50ppm | HC49/US |
| FOXSDLF/040 | Fox Electronics | HC49SDLF | MHz Crystal | 4MHz | ±50ppm | HC49/US |
| FOXSDLF/040 | Fox Electronics | HC49SDLF | MHz Crystal | 4MHz | ±50ppm | HC49/US |
| FOXSDLF/221-20 | Fox Electronics | HC49SDLF | MHz Crystal | 22.1184MHz | ±50ppm | HC49/US |
| FOXSDLF/221-20 | Fox Electronics | HC49SDLF | MHz Crystal | 22.1184MHz | ±50ppm | HC49/US |
| FOXSDLF/221-20 | Fox Electronics | HC49SDLF | MHz Crystal | 22.1184MHz | ±50ppm | HC49/US |
| FOXSDLF/073-20 | Fox Electronics | HC49SDLF | MHz Crystal | 7.3728MHz | ±50ppm | HC49/US |
| FOXSDLF/073-20 | Fox Electronics | HC49SDLF | MHz Crystal | 7.3728MHz | ±50ppm | HC49/US |
| FOXSDLF/073-20 | Fox Electronics | HC49SDLF | MHz Crystal | 7.3728MHz | ±50ppm | HC49/US |
| FOXSDLF/049-20 | Fox Electronics | HC49SDLF | MHz Crystal | 4.9152MHz | ±50ppm | HC49/US |
| FOXSDLF/049-20 | Fox Electronics | HC49SDLF | MHz Crystal | 4.9152MHz | ±50ppm | HC49/US |
实施/布局: 布局需要特别注意:低电容短走线、对称布局， 没有过孔，附近没有“热”迹线。如果无法避免过孔，则应铺设过孔 对称地。 验证: 必须在原型PCB上验证石英晶体振荡器的正确功能， 因为寄生电容和电阻事先是未知的 必须根据石英的预期功能调整电阻器和电容器晶体振荡器。 必须使用有源低电容探头(< =2pF)进行测量，因为电容>10pF的普通探头会完全改变设置并呈现所有测量没用。如果没有低电容探头，可以使用小陶瓷电容器(1~2pF)可以暂时与探头串联使用测量。然而，给定频率下分频器比率的重新校准不可避免.
| FOXSDLF/049-20 | Fox Electronics | HC49SDLF | MHz Crystal | 4.9152MHz | ±50ppm | HC49/US |
| FOXSDLF/250FR-20/TR | Fox Electronics | HC49SDLF | MHz Crystal | 25MHz | ±50ppm | HC49/US |
| FOXSDLF/250FR-20/TR | Fox Electronics | HC49SDLF | MHz Crystal | 25MHz | ±50ppm | HC49/US |
| FOXSDLF/250FR-20/TR | Fox Electronics | HC49SDLF | MHz Crystal | 25MHz | ±50ppm | HC49/US |
| FX425B-12.000 | Fox Electronics | FX425B | MHz Crystal | 12MHz | ±50ppm | 4-SMD, No Lead |
| FX425B-12.000 | Fox Electronics | FX425B | MHz Crystal | 12MHz | ±50ppm | 4-SMD, No Lead |
| FX425B-12.000 | Fox Electronics | FX425B | MHz Crystal | 12MHz | ±50ppm | 4-SMD, No Lead |
| FQ5032B-18.432 | Fox Electronics | C5BQ | MHz Crystal | 18.432MHz | ±30ppm | 4-SMD, No Lead |
| FQ5032B-18.432 | Fox Electronics | C5BQ | MHz Crystal | 18.432MHz | ±30ppm | 4-SMD, No Lead |
| FQ5032B-18.432 | Fox Electronics | C5BQ | MHz Crystal | 18.432MHz | ±30ppm | 4-SMD, No Lead |
| FX252BS-24.000 | Fox Electronics | FX252B | MHz Crystal | 24MHz | ±50ppm | 4-SMD, No Lead |
| FX252BS-24.000 | Fox Electronics | FX252B | MHz Crystal | 24MHz | ±50ppm | 4-SMD, No Lead |
| FX252BS-24.000 | Fox Electronics | FX252B | MHz Crystal | 24MHz | ±50ppm | 4-SMD, No Lead |
| FQ7050BR-7.3728 | Fox Electronics | C7BQ | MHz Crystal | 7.3728MHz | ±50ppm | 4-SMD, No Lead |
| FQ7050BR-7.3728 | Fox Electronics | C7BQ | MHz Crystal | 7.3728MHz | ±50ppm | 4-SMD, No Lead |
| FQ7050BR-7.3728 | Fox Electronics | C7BQ | MHz Crystal | 7.3728MHz | ±50ppm | 4-SMD, No Lead |
| FX122-327 | Fox Electronics | FX122 | kHz Crystal (Tuning Fork) | 32.768kHz | - | 2-SMD, No Lead |
| FX122-327 | Fox Electronics | FX122 | kHz Crystal (Tuning Fork) | 32.768kHz | - | 2-SMD, No Lead |
| FX122-327 | Fox Electronics | FX122 | kHz Crystal (Tuning Fork) | 32.768kHz | - | 2-SMD, No Lead |
| FOXSLF/115-20 | Fox Electronics | HC49SLF | MHz Crystal | 11.0592MHz | ±50ppm | HC49/US |
| FOXSLF/250F-20 | Fox Electronics | HC49SLF | MHz Crystal | 25MHz | ±50ppm | HC49/US |
| FOXSLF/147-20 | Fox Electronics | HC49SLF | MHz Crystal | 14.7456MHz | ±50ppm | HC49/US |
| FOXSLF/073-20 | Fox Electronics | HC49SLF | MHz Crystal | 7.3728MHz | ±50ppm | HC49/US |
| FOXSLF/160-20 | Fox Electronics | HC49SLF | MHz Crystal | 16MHz | ±50ppm | HC49/US |
| FOXSLF/160 | Fox Electronics | HC49SLF | MHz Crystal | 16MHz | ±50ppm | HC49/US |
| FOXSLF/080 | Fox Electronics | HC49SLF | MHz Crystal | 8MHz | ±50ppm | HC49/US |
| FOXSLF/128-20 | Fox Electronics | HC49SLF | MHz Crystal | 12.288MHz | ±50ppm | HC49/US |
| FOXSLF/245F-20 | Fox Electronics | HC49SLF | MHz Crystal | 24.576MHz | ±50ppm | HC49/US |
| FOXSLF/040A | Fox Electronics | HC49SLF | MHz Crystal | 4MHz | ±50ppm | HC49/US |
| FOXSLF/120 | Fox Electronics | HC49SLF | MHz Crystal | 12MHz | ±50ppm | HC49/US |
| FOXSLF/0368-20 | Fox Electronics | HC49SLF | MHz Crystal | 3.6864MHz | ±50ppm | HC49/US |
| FOXSLF/240F-20 | Fox Electronics | HC49SLF | MHz Crystal | 24MHz | ±50ppm | HC49/US |
| FOXLF250F-20 | Fox Electronics | HC49ULF | MHz Crystal | 25MHz | ±50ppm | HC49/U |
| FOXLF120-20 | Fox Electronics | HC49ULF | MHz Crystal | 12MHz | ±50ppm | HC49/U |
| FOXLF160 | Fox Electronics | HC49ULF | MHz Crystal | 16MHz | ±50ppm | HC49/U |
| FOXLF160-20 | Fox Electronics | HC49ULF | MHz Crystal | 16MHz | ±50ppm | HC49/U |
| FOXLF040A | Fox Electronics | HC49ULF | MHz Crystal | 4MHz | ±50ppm | HC49/U |
| FOXLF0368-20 | Fox Electronics | HC49ULF | MHz Crystal | 3.6864MHz | ±50ppm | HC49/U |
| FOXSLF/143-20 | Fox Electronics | HC49SLF | MHz Crystal | 14.31818MHz | ±50ppm | HC49/US |
| FOXSDLF/143-20 | Fox Electronics | HC49SDLF | MHz Crystal | 14.31818MHz | ±50ppm | HC49/US |
| FOXSDLF/143-20 | Fox Electronics | HC49SDLF | MHz Crystal | 14.31818MHz | ±50ppm | HC49/US |
| FOXSDLF/143-20 | Fox Electronics | HC49SDLF | MHz Crystal | 14.31818MHz | ±50ppm | HC49/US |
| FOXSDLF/245F-20 | Fox Electronics | HC49SDLF | MHz Crystal | 24.576MHz | ±50ppm | HC49/US |
| FOXSDLF/245F-20 | Fox Electronics | HC49SDLF | MHz Crystal | 24.576MHz | ±50ppm | HC49/US |
| FOXSDLF/245F-20 | Fox Electronics | HC49SDLF | MHz Crystal | 24.576MHz | ±50ppm | HC49/US |
| FOXSDLF/041 | Fox Electronics | HC49SDLF | MHz Crystal | 4.194304MHz | ±50ppm | HC49/US |
| FOXSDLF/041 | Fox Electronics | HC49SDLF | MHz Crystal | 4.194304MHz | ±50ppm | HC49/US |
| FOXSDLF/041 | Fox Electronics | HC49SDLF | MHz Crystal | 4.194304MHz | ±50ppm | HC49/US |
| FOXSDLF/100-20 | Fox Electronics | HC49SDLF | MHz Crystal | 10MHz | ±50ppm | HC49/US |
| FOXSDLF/100-20 | Fox Electronics | HC49SDLF | MHz Crystal | 10MHz | ±50ppm | HC49/US |
| FOXSDLF/100-20 | Fox Electronics | HC49SDLF | MHz Crystal | 10MHz | ±50ppm | HC49/US |
| FOXSDLF/160R-20/TR | Fox Electronics | HC49SDLF | MHz Crystal | 16MHz | ±50ppm | HC49/US |
| FOXSDLF/160R-20/TR | Fox Electronics | HC49SDLF | MHz Crystal | 16MHz | ±50ppm | HC49/US |
| FOXSDLF/160R-20/TR | Fox Electronics | HC49SDLF | MHz Crystal | 16MHz | ±50ppm | HC49/US |
| FOXSDLF/200R-20/TR | Fox Electronics | HC49SDLF | MHz Crystal | 20MHz | ±50ppm | HC49/US |
| FOXSDLF/200R-20/TR | Fox Electronics | HC49SDLF | MHz Crystal | 20MHz | ±50ppm | HC49/US |
| FOXSDLF/200R-20/TR | Fox Electronics | HC49SDLF | MHz Crystal | 20MHz | ±50ppm | HC49/US |
| FOXSDLF/245FR-20/TR | Fox Electronics | HC49SDLF | MHz Crystal | 24.576MHz | ±50ppm | HC49/US |
| FOXSDLF/245FR-20/TR | Fox Electronics | HC49SDLF | MHz Crystal | 24.576MHz | ±50ppm | HC49/US |
| FOXSDLF/245FR-20/TR | Fox Electronics | HC49SDLF | MHz Crystal | 24.576MHz | ±50ppm | HC49/US |
| FQ5032B-24.576 | Fox Electronics | C5BQ | MHz Crystal | 24.576MHz | ±30ppm | 4-SMD, No Lead |
| FQ5032B-24.576 | Fox Electronics | C5BQ | MHz Crystal | 24.576MHz | ±30ppm | 4-SMD, No Lead |
| FQ5032B-24.576 | Fox Electronics | C5BQ | MHz Crystal | 24.576MHz | ±30ppm | 4-SMD, No Lead |
| FQ5032B-24.000 | Fox Electronics | C5BQ | MHz Crystal | 24MHz | ±30ppm | 4-SMD, No Lead |
| FQ5032B-24.000 | Fox Electronics | C5BQ | MHz Crystal | 24MHz | ±30ppm | 4-SMD, No Lead |
| FQ5032B-24.000 | Fox Electronics | C5BQ | MHz Crystal | 24MHz | ±30ppm | 4-SMD, No Lead |
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