Fox Electronics...A Brief Introduction to America's Preferred Source for Frequency Control


Fox Corporate Background

Company: Fox Electronics; Fort Myers, FL

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

Company Innovations:

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
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

Key Officers:

Gene Trefethen – President
Roger Burns – Vice President of Sales
Tia Trefethen – Vice President of Operations

Founded: 1979

With over 275 different products available, Fox offers an extremely broad range of frequency control products, including quartz crystals,clock oscillators, Temperature Compensated Crystal Oscillators, Voltage Controlled Crystal Oscillators, and Oven Controlled Crystal Oscillators


Fox Electronics' products are used worldwide, in applications as diverse as wireless communications equipment and telecommunications devices, computers and peripherals, instrumentation, aerospace, storage, industrial, automotive, medical and military.

Headquarters Address: 5570 Enterprise Parkway, Fort Myers, FL 33905

Fox Electronics maintains a direct presence on three continents – with corporate headquarters in Ft. Myers, Florida and company offices in the UK, Singapore, and Japan.

A network of manufacturer’s representatives provides global sales coverage from more than 50 offices worldwide.
Fox Electronics' products are also delivered through nine of the top ten worldwide distributors

For additional information:

Tel: 888-GET-2-FOX; Fax: 239-693-1554
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