详解有源晶振与无源晶振的区别

时间： 2024-03-19 来源：赛思官网

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在现代化社会的数智化进程中，晶振作为我们掌握电子设备同步节拍的关键，它的主要作用是产生稳定的频率信号。传统意义上，我们通常将晶振分为有源晶振和无源晶振，它们在功能、应用和特点上有着显著的区别。为方便大家更好的区分，本文赛思将详细介绍有源晶振和无源晶振的区别。

一、有源晶振和无源晶振的基本定义。

有源晶振，顾名思义，是有内置电源的晶振。它通过内部的电路产生并提供所需的电能，因此无需外部电源供应。有源晶振的主要优点是体积小、功耗低，但其缺点是需要精确匹配电路才能正常工作，而且价格相对较高。

无源晶振，又称为晶体无负载，是指没有内置电源的晶振。它完全依赖于外部的电源供应来驱动其振动。无源晶振的主要优点是使用简单，只需将其与适当的电容和电阻连接即可，但其缺点是需要精确匹配电路以确保正常工作，且体积相对较大，功耗较高。

二、有源晶振和无源晶振的主要区别。

1.供电方式：有源晶振自带电源，而无源晶振需要外部电源供电。

2.体积和功耗：由于无源晶振需要外部电源，所以其体积通常会比有源晶振大一些，功耗也相对较高。

3.使用复杂度：有源晶振的使用相对简单，只需要连接适当的电容和电阻即可；而无源晶振的使用则需要更复杂的匹配电路，否则可能无法正常工作。

4.价格：由于无源晶振需要额外的电源供应和复杂的匹配电路，所以其价格通常会比有源晶振高。

5.性能：一般来说，有源晶振的性能（如精度、稳定性等）要优于无源晶振。

三、总结

总的来说，有源晶振和无源晶振各有优势和劣势，选择哪种类型的晶振取决于具体的应用需求。针对网络通信、雷达探测、精密测量、工控等关键领域，赛思可提供标准或定制化的超低噪声和超高稳定性中高端有源晶振系列产品以供选择，产品类别涵盖无源晶振和有源晶振，产品最高具有-188dBc/Hz的本底相位噪声、1.08E^-13/s的短期稳定性、-40~85℃≤1E^-11的温度稳定性。

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本文由Vicky转载自赛思官网，原文标题为:有源晶振与无源晶振的区别，本站所有转载文章系出于传递更多信息之目的，且明确注明来源，不希望被转载的媒体或个人可与我们联系，我们将立即进行删除处理。

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无源晶振，频率范围涵盖800KHZ到300MHZ，频率温度特性，-40~125度±50ppm，最小封装尺寸SMD1612，精度最高达到±5ppm，年老化率仅3ppm；有源晶振，SPXO频率精度能达到±25ppm,TCXO频率精度可±0.5ppm，频率更高，如OSC7050 184.32mhz，电源电压至1.8V,最高5.0V，启动时间5mSec，相噪低至1ps，年老化率低至1ppm；音叉时钟晶振，RTC模块，为系统提供时钟的，32.768KHZ是最常用的频率，主要应用于有计时功能的电子产品。有源系列包括HC-49S、HC-49SSMD、M49SSMD、SMD6035、SMD5032、SMD3225、SMD2520、SMD2016、SMD1612等；无源系列包括普通晶体振荡器（SPXO)、温度补偿晶体振荡器(TCXO)、恒温晶体振荡器（OCXO)、电压控制晶体振荡器（VCXO)

产品型号	品类	电压（V）	温度稳定度（PPM）	频率（MHZ）
O2224000153325	石英晶体振荡器	3.3V	25PPM	24MHZ

选型表 - 晶光华立即选型

星通时频（SCTF）有源晶振选型表

目录- 有源晶振

型号- S7D27.120000D20F30T,S7D3.686400A20F30T,S3D30.000000D20F30T,S5D49.152000A20F30T,S3D49.152000D20F30T,S7D32.000000A20F30T,S7D27.000000B20F30T,S7D16.000000D20F30T,S5D32.000000D20F30T,S3D19.200000A20F30T,S3D50.000000B20F30T,S3D1.843200A20F30T,S7D36.000000B20F30T,S3D11.289600A20F30T,S5D4.096000A20F30T,S7D28.636360D20F30T,S7D11.059200B20F30T,S3D2.048000A20F30T,S5D7.372800D20F30T,S3D6.000000A20F30T,S5D25.000000B20F30T,S7D5.000000D20F30T,S3D4.096000B20F30T,S5D32.768KD20F30T,S5D33.000000D20F30T,S3D12.288000B20F30T,S7D2.000000A20F30T,S3D18.432000A20F30T,S5D29.491200B20F30T,S7D26.000000D20F30T,S7D33.330000B20F30T,S7D54.000000B20F30T,S3D2.457600D20F30T,S5D3.579545B20F30T,S7D4.915200D20F30T,S7D25.000000D20F30T,S5D2.000000D20F30T,S3D48.000000A20F30T,S5D16.000000B20F30T,S3D32.000000B20F30T,S7D8.192000D20F30T,S5D1.000000D20F30T,S5D3.686400B20F30T,S3D32.768KD20F30T,S5D4.000000B20F30T,S5D30.000000A20F30T,S7D4.000000A20F30T,S7D22.118400A20F30T,S3D13.560000A20F30T,S7D45.000000D20F30T,S7D33.333300D20F30T,S3D14.318180B20F30T,S3D22.579200A20F30T,S5D12.288000A20F30T,S7D4.000000D20F30T,S7D1.843200B20F30T,S3D33.000000B20F30T,S7D14.745600B20F30T,S3D48.000000D20F30T,S5D10.000000A20F30T,S5D7.372800B20F30T,S5D26.000000B20F30T,S5D49.1520000B20F30T,S7D54.000000D20F30T,S5D2.000000B20F30T,S7D6.000000D20F30T,S5D24.000000B20F30T,S7D27.000000D20F30T,S7D29.491200B20F30T,S5D22.118400A20F30T,S7D19.200000B20F30T,S3D20.000000A20F30T,S7D14.318180A20F30T,S7D6.144000A20F30T,S5D14.745600B20F30T,S7D8.000000B20F30T,S3D10.000000A20F30T,S3D24.000000B20F30T,S7D1.024000B20F30T,S7D33.000000A20F30T,S3D36.000000A20F30T,S3D4.915200A20F30T,S7D8.192000B20F30T,S7D33.333300B20F30T,S5D4.915200B20F30T,S7D16.000000B20F30T,S5D25.000000D20F30T,S3D2.457600A20F30T,S7D45.000000B20F30T,S3D32.000000D20F30T,S7D1.843200D20F30T,S7D5.000000B20F30T,S5D12.000000A20F30T,S5D50.000000D20F30T,S3D8.000000D20F30T,S3D18.432000D20F30T,S3D20.000000D20F30T,S3D3.579545A20F30T,S7D14.745600D20F30T,S5D1.000000A20F30T,S5D24.000000D20F30T,S7D6.000000B20F30T,S7D49.152000A20F30T,S5D24.576000A20F30T,S5D40.000000A20F30T,S7D16.384000B20F30T,S5D12.288000D20F30T,S7D32.768KB20F30T,S5D27.000000B20F30T,S3D14.318180D20F30T,S7D29.491200D20F30T,S7D8.192000A20F30T,S5D33.333000A20F30T,S3D2.048000D20F30T,S5D3.579545D20F30T,S5D1.000000B20F30T,S5D16.384000B20F30T,S3D26.000000A20F30T,S5D6.000000B20F30T,S3D3.686400B20F30T,S5D2.048000B20F30T,S5D13.560000B20F30T,S5D14.745600D20F30T,S5D11.289600A20F30T,S5D28.636360D20F30T,S3D16.000000B20F30T,S3D25.000000B20F30T,S7D3.686400D20F30T,S5D2.000000A20F30T,S5D19.200000A20F30T,S5D22.579200B20F30T,S7D30.000000A20F30T,S3D11.289600D20F30T,S7D32.768KD20F30T,S5D4.000000D20F30T,S7D4.096000B20F30T,S5D7.372800A20F30T,S5D4.096000D20F30T,S7D5.000000A20F30T,S7D2.457600D20F30T,S7D4.000000B20F30T,S3D33.330000A20F30T,S3D33.333000B20F30T,S5D32.000000A20F30T,S7D50.000000D20F30T,S5D12.288000B20F30T,S3D1.843200D20F30T,S5D36.000000B20F30T,S5D6.144000A20F30T,S3D24.000000D20F30T,S7D11.059200D20F30T,S7D24.576000A20F30T,S3D7.372800B20F30T,S3D33.333000A20F30T,S7D1.000000A20F30T,S3D10.000000B20F30T,S5D24.576000D20F30T,S5D13.560000A20F30T,S5D16.384000A20F30T,S5D2.048000A20F30T,S5D40.000000D20F30T,S5D22.579200A20F30T,S3D27.000000A20F30T,S5D6.144000B20F30T,S3D12.000000A20F30T,S3D14.318180A20F30T,S5D49.1520000D20F30T,S5D6.000000A20F30T,S7D14.745600A20F30T,S7D33.330000A20F30T,S3D22.579200D20F30T,S3D26.000000B20F30T,S5D20.000000D20F30T,S5D24.000000A20F30T,S3D13.560000D20F30T,S5D48.000000A20F30T,S3D7.372800D20F30T,S3D11.059200A20F30T,S7D4.915200B20F30T,S5D32.768KB20F30T,S5D5.000000B20F30T,S3D12.288000D20F30T,S3D27.000000D20F30T,S3D8.192000A20F30T,S3D12.000000B20F30T,S3D10.000000D20F30T,S5D36.000000A20F30T,S5D30.000000B20F30T,S5D8.000000A20F30T,S3D25.000000D20F30T,S5D18.432000B20F30T,S7D40.000000A20F30T,S7D14.318180D20F30T,S7D54.000000A20F30T,S5D19.200000B20F30T,S5D48.000000D20F30T,S3D22.118400A20F30T,S3D49.1520000B20F30T,S7D50.000000A20F30T,S5D8.000000D20F30T,S3D22.118400D20F30T,S7D4.096000A20F30T,S3D29.491200A20F30T,S3D33.333000D20F30T,S5D5.000000D20F30T,S5D18.432000A20F30T,S5D20.000000A20F30T,S5D8.000000B20F30T,S3D16.000000A20F30T,S5D16.384000D20F30T,S5D6.144000D20F30T,S3D33.333300A20F30T,S5D33.000000A20F30T,S5D28.636360B20F30T,S5D32.000000B20F30T,S7D33.330000D20F30T,S3D29.491200B20F30T,S3D3.686400A20F30T,S3D12.000000D20F30T,S7D4.915200A20F30T,S3D22.118400B20F30T,S5D33.000000B20F30T,S5D28.636360A20F30T,S5D6.000000D20F30T,S5D30.000000D20F30T,S7D2.457600B20F30T,S3D1.843200B20F30T,S5D48.000000B20F30T,S3D33.333300B20F30T,S7D2.000000B20F30T,S7D11.289600A20F30T,S7D12.288000B20F30T,S7D50.000000B20F30T,S3D4.915200B20F30T,S3D1.000000A20F30T,S3D6.144000A20F30T,S7D8.000000A20F30T,S7D33.333000D20F30T,S5D19.200000D20F30T,S5D14.745600A20F30T,S3D49.1520000A20F30T,S5D29.491200A20F30T,S3D13.560000B20F30T,S3D16.384000B20F30T,S3D22.579200B20F30T,S3D5.000000B20F30T,S7D2.457600A20F30T,S7D19.660800D20F30T,S7D22.118400B20F30T,S5D33.333000B20F30T,S3D14.745600D20F30T,S5D20.000000B20F30T,S3D26.000000D20F30T,S5D16.000000A20F30T,S7D7.37

选型指南 - 星通时频 PDF 中文下载

【选型】晶光华（JGHC）贴片有源晶振 & 贴片无源晶振(物料型号对照表)选型指南

目录- 有源晶振/无源晶振

型号- S3227000121040,49SAC18080162060,S2126000121080,Y20600327122075,49SAC07600202060,S2232000091050JY,O32125000153325,S5325000201040,M49SAT08000201080,SMD2520,S32080001220500,G53080000850100A,GLASS5032,49SAT04000201080JY,O5326000153325,S2100327121090,49ASC28800202040,S3230000201040,49SAC25000182040,S5327000202040,MC30600327122050,S3224000151060,S3228375201060,O7540000153325,S3227000201040,49ASC60350202040,49SAT25000201040JY,S5312000201080,S53080001510100A,S3240000121060,G53080000830100A,OSC2016,49SAC24000201040,49SBT06745201060,O5316000153325,OSC3225,S3224000151050,49SBT12000181060,M49SAT24000121060,O7512000153325,HC-49S,49SAC16000201060,S3224000121060A,O2200327153325,G5308000201080,49SAC035792020100,49ASC27138152040,O7520000153325,S3224000121060,S2224000121060JY,S5313253201060,O3200327151825,49SAT26000201040JY,G3216000183080,SMD3100327122090,S2224000091060JY,G3212288121080,O5300327153325,O5308000153325,49SAC04096202080,HC-49SMD,S2132000101080,O7527000153325,49SAC04194202080,S5312000202080A,O7512288153325,49SAC16934182060,S3212000121080,O22088001533100,49ASC27000182040,49SBT33868201040,O7550000153325,S32300000651040,S2132000121080,S5319687141040A,S3224000061050,49SAC22118202040,49SBT04000201080,S5313560152040A,S3212000201080,S3232000081040,49ASC26000202040,P7426000091040,S712000201040,49SAC08000202060,O7525000153325,O2100327153325,49SAC24000122040,O3225000153325,S3225000121060,49SAT08000201060,S3216000121060,S2240000101050JY,S32120002010100A,O3237125153325,J3224000091080,49SAC26000152040,49SAC16000222060,49SAT13560161050JY,O3216000153325,HC-49SSMD,O7524000153325,TCO22260002805,Y20600327122040,O5340000153325,S2140000091070JY,49SAC25000122040,S2227120101080,G3232000121060A,O3212288153325,49SAC24545082040JY,O3226000153325,S2132000091080,S5340659081540,49SAC10000201060,S2226000071060,S3224000201060,S3213000201060JY,49SAC27000182040,49SAC20000202040,S2219200121080,PFP7040,49ASC50000201040,O5324000153325,S5318080141040A,49SAC036862020100,O3240000153330JY,S3230000201060,49SBT25000181040,TCXO2520,G3226000161060,O3248000153325,S3237400201040JY,S3226000091060,S3219200071060,S3240000121040,S2240000101050,49ASC40233202030,G3224000102060,TSX22260000781040,S5348000202040,OSC7050,SMD3225,SMD2016,O75100000153325,O2224000153325,S3214318201060,S3227000181040,MC14600327122090,49SAC06745202060,S3250000121060,O3240000153325,S3240000101040,O75125000153325,49SAC36480122040,S724000101030,J3225000121080,S2216000091080,O7502048153325,O5324576153325,S22160000910100JY,O5320000153325,M49SAT26000091060,S3232000091040,49SAC10000132060,S3213253202070,S2132000091070JY,49SAC25000201040,S2226000120860,O5312288153325,S3230000101040,SMD3100327092090,O32540001533525,O2227000153325,Y30800327122075,49SAT14318201060,O3204000153325,SMD6035,49SAC08000182060,49SAC20500202040,O3227000153325,O3200327153320JY,49SAC21250182040,S3212000181080,O3233330153325,49SAC260000852040,O5310000153325,S2226000091060JY,O3232000153325,S3226000081040,49ASC27120102040,S720000202040,O3250000153325,O2250000153325,S2126000091080,G5308000123080,S5324000201040,G3232000121050,S2100327072090,O5327000153325,O5312000153325,S5308000201080,S2225000181060,O2220000153325,O3218432153325,O7508000153325,O22072001533100,S3213560201060,S2124000121080JY,O3220000153325,S3216000091060,S3237400121040,49SAC17950162060,OSC2520,49SBT04904201060,49SAC06000202060,49SBT26000151040,49SAC12000202060,S3224000121060JY,O7533000153325,O75125000LD3320,O7511059153325,S3220000181060,O2224576153325,O5325000153325,49SAC08000163060,49ASC32768202030,S3224576202040,S2250000091050,S3225000151040,49SAC08192202060,M49SAT16000091060,O3206000153325,O2212000153325,S32080002010500,O3224576153325,TSX2226000091040,O3212000153325,49SBT24000181040,S2226000081060,S3219200101060,S3226000121060,O5350000153325,49SAT04000201080,SMD5032,S3224576121060,49SAC13560101060,G3225000201060,S5308000222080,S5308704223080,S5313526142040A,S3212000101080,O2225000153325,O2237125153325,S5313526141060,49SAC11059202060,HC-49SBSMD,S3216000091060JY,TSX2226000071040,Y20624000202050JY,M49SAT12000121060,4SSAC27000202040,49SAC04897202080,S3240000091040JY,49SAC13560201060,S3225000201060,TCO22384001805,S6316000202040,49SAC04000202080,49SAC13598102060,M49SAT27000201060,49SAC16934202060,49SAC08000FS2060,S3232000121040,S2132000081070JY,G3236864062050,J3220000181080,O7524576153325,S2125000101080,S21160000910120JY,S3226000071060,S3218080141080A,S3240000151040,M49SSMD,49SAC27000202030JY,G3226000071060,S3240000101060JY,S2216000121080,49SAC16000182060,O3227000153320JY,49ASC27125202040,S3226000091040JY,G3225000101560A,49SAC14745202060,O7548000153325,S5327000181040,O2248000153325,49SAC16000202060,S3227141201060A,S2240000091050JY,O3230000153325,O32100000153325,O7510000153325,O3224000153325,49SAC20480202040,OSC5032,S3216000201060,G3236864062060A,S2126000091080JY,O5348000153325,49SAC25000202040

选型指南 - 晶光华 - 2020年07月15日 PDF 中文下载