FOXcrystal美國福克斯晶振公司成立于1979年，是一家小型的家族企業。總部位于邁爾斯堡佛羅里達州。自福克斯晶振公司成立以來，便發展成為美國高精度，高可靠性頻率控制產品領先供應商，全球擁有10000多家客戶。過去的32年以來，研發部門是公司的持續增長的重要推動力。福克斯晶振工程師已經開發出數百種產品，為晶體和振蕩器的精度及高可靠性設定了新的標準，并為了縮短交周期以滿足不同客戶的需求。
FOX晶振公司憑借先進的生產設備，及無塵工作室使得
福克斯晶振公司能夠生產出符合要求的產品。2012年4月美國IDT晶振公司成功收購福克斯晶振公司，并于2016年10月恢復福克斯晶振公司為長期管理團隊的權限。
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 - 專注于快速交貨
*采用可編程PLL和定制存儲器結構的振蕩器
*獲得專利的頻率調諧功能，保證精確度
* 10天即時交付方式開發
2003 - rfXO - 專注于低噪音/高性能
*使用低噪聲PLL的高頻（600MHz?1.25GHz）
振蕩器發布
*開發獨立專利存儲器結構
2007 - XpressO * - 低噪音，低成本快速交貨
*低噪聲小數N分頻PLL
*獲得專利的內存結構
*三階DSM噪音分散技術，根據客戶噪音要求進行可選設置
2014年 - XpressO ULTRA * - 降低抖動
*根據測量帶寬將相位抖動降至100?250fS（XpressO <1pS）
*增加了1.8V和HCSL選項
* XpressO和XpressO Ultra由IDT保留
福克斯晶振繼續推出業界領先的產品，包括AEC-Q200晶體和振蕩器，低電流振蕩器，我們的晶體，振蕩器和TCXO封裝尺寸非常小，極其穩定的TCXO以及小型高頻差分振蕩器
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
