FOXcrystal美国福克斯晶振公司成立于1979年，是一家小型的家族企业。总部位于迈尔斯堡佛罗里达州。自福克斯晶振公司成立以来，便发展成为美国高精度，高可靠性频率控制产品领先供应商，全球拥有10000多家客户。过去的32年以来，研发部门是公司的持续增长的重要推动力。福克斯晶振工程师已经开发出数百种产品，为晶体和振荡器的精度及高可靠性设定了新的标准，并为了缩短交周期以满足不同客户的需求。
FOX晶振公司凭借先进的生产设备，及无尘工作室使得
福克斯晶振公司能够生产出符合要求的产品。2012年4月美国IDT晶振公司成功收购福克斯晶振公司，并于2016年10月恢复福克斯晶振公司为长期管理团队的权限。
Fox Electronics was founded in 1979 as a small, family-owned supplier of quartz crystals and oscillators. Since then, the company has evolved to become America’s leading supplier of high-precision, high-reliability frequency control products to the electronics market, with more than 10,000 customers worldwide.
An important contributor to the company's continuing growth over the last 32 years is its R&D department. Fox engineers have developed hundreds of products that have set new standards for crystal and oscillator performance, precision and reliability, as well as for meeting escalating business demands for shorter lead times.
Fox prides itself on being on the leading edge of frequency control technology with continued new product developments based on top quality company research.
With advanced manufacturing facilities incorporating state-of-the-art equipment operating under atmospherically controlled conditions – including a Class-100 clean room – Fox Electronics is able to produce its innovative products to the most stringent industry quality standards.
In April 2012 Integrated Device Technology, Inc. acquired Fox Electronics, and in October 2016 it returned to private ownership by Fox's long term management team.
1998年 - JITO - 专注于快速交货
*采用可编程PLL和定制存储器结构的振荡器
*获得专利的频率调谐功能，保证精确度
* 10天即时交付方式开发
2003 - rfXO - 专注于低噪音/高性能
*使用低噪声PLL的高频（600MHz?1.25GHz）
振荡器发布
*开发独立专利存储器结构
2007 - XpressO * - 低噪音，低成本快速交货
*低噪声小数N分频PLL
*获得专利的内存结构
*三阶DSM噪音分散技术，根据客户噪音要求进行可选设置
2014年 - XpressO ULTRA * - 降低抖动
*根据测量带宽将相位抖动降至100?250fS（XpressO <1pS）
*增加了1.8V和HCSL选项
* XpressO和XpressO Ultra由IDT保留
福克斯晶振继续推出业界领先的产品，包括AEC-Q200晶体和振荡器，低电流振荡器，我们的晶体，振荡器和TCXO封装尺寸非常小，极其稳定的TCXO以及小型高频差分振荡器
1998 – JITO – Focused on fast delivery
* Oscillator utilizing the programmable PLL and custom memory structure
* Patented frequency tuning allowing for tight accuracy
* 10 day Just in Time delivery method developed
2003 – rfXO – Focused on low noise / high performance
* High frequency (600MHz~1.25GHz) oscillator utilizing a low noise PLL is released
* Stand-alone Patented memory structure developed
2007 – XpressO* – Low noise & fast delivery with low cost
* Low noise Fractional-N PLL
* Patented memory structure
* 3rd Order DSM noise dispersion technology with selectable settings based on customer noise requirements
2014 – XpressO ULTRA* – Lowered Jitter
* Lowered phase jitter to 100~250fS depending on measured bandwidth (XpressO is <1pS)
* Added 1.8V and HCSL options
* XpressO and XpressO Ultra were retained by IDT
* XpressO and XpressO Ultra were retained by IDT
Fox continues to introduce industry leading products including AEC-Q200 Crystals and Oscillators, Low Current Oscillators, Small package sizes in our Crystals, Oscillators, and TCXOs, Extremely tight stability TCXOs, as well as small high frequency differential Oscillators
