PC电脑都用到哪些晶振？

时间： 2023-11-25 来源：应达利

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尽管上半年全球PC电脑市场行情不景气，然而2023年第三季度全球电脑出货量迎来了环比增长，IDC等机构纷纷预测，随着PC去库存化，且微软将在2025年10月14日结束对Windows 10系统的支持，AI PC的需求，这都将刺激PC的后续增长。那么PC电脑都会用到哪些晶振呢？

电脑常用的晶振解决方案：

32.768kHz晶振：主要用于实时时钟（RTC）模块，用于计算机系统的时间管理。推荐选用应达利的SMLF-3215系列（料号：9CAA32768122TF70QT），SMLF-1610（32.768KHz）等低频音叉晶体。
主板晶振：14.318MHz、24.576、25MHz、27MHz、32.768KHz；
显示器晶振：8M/14.31818MHz、12.000MHz、24.000MHz、28.224MHz；
硬盘晶振：23.040MHz，28.224MHz；
光驱晶振：33.8688MHz，16.9344MHz，18.432MHz；
键盘晶振：6.000MHz；
鼠标晶振：6.000MHz，12.000MHz，24.000MHz；
摄像头晶振：12.000MHz；
蓝牙晶振：16.000MHz；
无线WIFI晶振：25.000MHz，2.5G/3G（40.000MHz,44.000MHz）;
网络传输ADSL晶振：12.288MHz，35.328MHz，50.000MHz；

常用封装尺寸：

1.2x1.0mm，1.6x1.2mm，2.0x1.6mm：适用于对体积要求较高的场合，如可穿戴设备、智能手机等消费电子产品。
3.2x2.5mm：适用于对性能和体积要求适中的场合，如平板电脑、数据中心服务器等。
5.0x3.2mm：适用于对性能要求较高的场合，如工业控制、通信设备等。

石英晶振能够提供稳定输出是一项十分重要的要求。9CAA32768122TF70QT系列为表贴音叉晶体谐振器，其尺寸小巧，符合RoHS标准且无铅，具备高可靠性、频率范围广的优质特性，还可广泛应用于安防行业、汽车电子、工业应用、通讯应用、消费电子、医疗应用等。

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如何区分有源晶振和无源晶振？

众所周知，电子线路中的晶振分为无源晶振和有源晶振两种类型。本文应达利探讨了如何区分有源晶振和无源晶振。

技术探讨发布时间 : 2024-06-25

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技术探讨发布时间 : 2024-08-06

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晶振不仅在日常消费电子、智能家庭等产品中使用，在汽车上也使用晶振。但车用晶振应满足-40~125℃的工作温度范围，具有供电电压低、精度高、振动小、功耗低的特点。汽车系统中使用的晶振包括音响、蓝牙、雷达、钟表、显示器等。车载音响中使用的12M或16M、26M芯片晶振，钟表中使用的是32.768khz晶振。倒车雷达也使用晶振，例如3225封装晶振16M、26M、32M在雷达中常用。

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