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ζ　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Ψ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。通过ぷ输入上面的内容 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ㄨ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ζ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