News at Greenray Industries
Greenray Founder, Raymond H. Green, 1931 - 2011
December, 2011 - Raymond H. Green, 80, died at his home in St. Petersburg, Florida, September 19, 2011. Mr. Green was the founder and former CEO of Greenray Industries, Inc.
Ray Green proudly served in the United States Air Force and pursued a lifelong interest in electronics and technology. His interests included collecting and restoring antique radios, boating, fishing and writing, including magazine articles and a book about remote control of household devices and functions. He is survived by his wife Jan L. Green, his son and daughter, and numerous nieces and nephews. He is remembered fondly by his friends and former associates here at Greenray.
European Microwave Week 2011, Manchester, UK
October, 2011 - The European Microwave Week Exhibition, which ran from October 11th to October 13th, lived up to its billing as the largest trade show in Europe dedicated to the Microwave and RF industries.
Together with sister companies Statek Corp. and AdTech Ceramics, Greenray Industries joined over 250 other exhibitors to present the latest products, industry trends and innovations to over 7000 visitors and conference delegates.
Manchester Central Convention Complex, a unique venue in the heart of the city of Manchester, was a convenient and capable host for this event, and we hope to be back again soon.
Greenray Celebrates 50th Year of Operation
January, 2011 - 2011 marks the 50th Anniversary of the founding of Greenray Industries. Established in 1961 by Raymond Green, the company affirms its commitment to engineering excellence and the design and manufacture of innovative frequency control solutions.
Greenray Industries would like to thank our customers, our employees, and our business partners worldwide for their support and participation in our continued success.
T1215 Series TCXO Announced
March, 2010 - Greenray Industries, Inc. has introduced the T1215 Series TCXO.
The T1215 measures 9mm x 7mm x 2.8mm and features a hermetic, ceramic package with ruggedized construction. It has been designed to deliver consistent, reliable frequency control performance in high shock and vibration environments. Reduced acceleration sensitivity down to 5 x 10-10/g is available for improved phase noise performance during vibration and acceleration.
The T1215 offers a wide range of available frequencies, from 750kHz to 800MHz, and a choice of CMOS, LVPECL or LVDS outputs. Supply voltage is 3.3V or 5V. A miniature, high precision AT strip crystal enables extremely smooth and repeatable frequency performance over temperature and time.
T1215 Data Sheet ___ T1215 Announcement
Greenray Technical Article Featured in Microwave Product Digest
Greenray engineer John Esterline's Technical Paper, "Crystal Oscillators: History, Parameters and Types", is featured in the July 2009 issue of Microwave Product Digest magazine.
The article focuses on various types of oscillators and the parameters associated with crystal oscillators, and includes practical information about phase noise, jitter, stability and temperature performance.
Click on the image above to visit MPD online and view this informative feature story.
T53 High Stability, Miniature TCXO Announced
July, 2009 - Greenray Industries, Inc. has introduced the T53 Series TCXO. Measuring just 5mm x 3.2mm x 2mm, the T53 Series temperature compensated crystal oscillator has been developed as a reference oscillator for critical timing applications that demand a small footprint.
The T53 performs under high shock and vibration and extreme acceleration conditions, requires very low current, and offers Clipped Sinewave or CMOS outputs. The T53 Series TCXO has been designed to serve a broad range of markets including Smart Munitions, GPS, Mobile Radio, SONET, WiMAX, WLAN, Stratum 3 and Femtocell.
T53 Data Sheet ___ T53 Announcement
ZYH1002/1003 Very Low Power, Miniature OCXO Announced
June, 2009 - Greenray Industries, Inc. has announced the availability of the ZYH1002/1003 Series OCXO. The ZYH1002/1003 Series miniature reference oscillators offer a new low power option designed specifically for use in applications that require low power consumption and/or battery power.
The ZYH 1002/1003 Series OCXO uses a thermally efficient oven design to lower power requirements as compared with similar sized devices of conventional construction, drawing only slightly more power than a TCXO. The ZYH1002/1003 Series utilizes a standard 4-pin dual-inline package for direct replacement and upgrade of existing sources.
ZYH1002 Data Sheet ___ ZYH1002/1003 Announcement
YH1420 OCXO Announced
March, 2009 - Greenray Industries, Inc. has introduced the YH1420 Series OCXO. The YH1420 has been designed to serve as a stable reference source for telecommunications, instrumentation and radio communications applications.
Greenray's new 1420 Series Ovenized Crystal Oscillators deliver excellent short-term stability from 10 MHz to 100MHz and feature a compact 20.32 x 12.70 x 9.40 mm (0.80 x 0.50 x 0.37 in.), ROHS-compliant, DIP package.
The YH1420 Series offers a true sinewave output (Model 1421) or squarewave output (Model 1420) and either +5 or +3.3VDC supply voltage.
YH1420 Data Sheet ___ YH1420 Announcement
T121 High Frequency TCXO Announced
February, 2009 - Greenray Industries, Inc. has introduced the T121 Series TCXO. The T121 has been designed to serve as a super-stable frequency reference in high shock and high vibration environments.
The T121 Series' combination of a compact, rugged package, tight stability and high frequency availability make it ideally suited for use in high shock/high vibration environments, including mobile and airborne applications.
The T121 Series TCXO, available from 50 to 100MHz, provides extremely stable sinewave output and temperature stability to ±0.5ppm over -40 to +85°C. The T121 measures 0.68 x 0.68 x 0.200" and features vibration sensitivity of 7 x 10-10/g or better.
T121 Data Sheet ___ T121 Announcement
T124 Ultra-low Frequency TCXO Debuts
January, 2009 - Greenray Industries, Inc. has announced the availability of the T124 Series TCXO. The T124 Series is an ultra-low frequency oscillator - available down to 650Hz - in a low profile, compact SMT package.
The T124 provides extremely stable, low frequency squarewave output, with temp stability to ±0.3ppm over -40 to +85°C. Available from 650Hz to 1.25MHz, the T124 TCXO features 3.3V input voltage and EFC to adjust for long-term aging. The T124 utilizes a rugged, AT strip crystal to provide superior aging characteristics to 3ppm over 15 years. Compact size and low power consumption make the T124 TCXO ideally suited for low jitter clocking for mobile RF applications.
T124 Data Sheet ___ T124 Announcement
Greenray Hits Top 10 at RF Globalnet
For the fourth consecutive year, a Greenray Industries Technical Paper is among the top 10 downloads at the RF Globalnet website.
Greenray engineer John Esterline's White Paper, "Oscillator Phase Noise: Theory vs. Practicality", offers readers insight into low noise time bases and practical considerations for utilizing them in the real world, with particular attention to the potential impacts of phase noise on higher level systems.
Click on the TOP 10 of 2008 icon to visit RF Globalnet and view "Oscillator Phase Noise: Theory vs. Practicality"
New T1300 TCXO Now Available
December, 2008 - Greenray Industries, Inc. announced the availability of the Model T1300 TCXO. The T1300 Series is relatively impervious to the effects of shock and vibration and represents a major breakthrough for compact, low-power TCXO performance.
Utilizing a combination of proprietary crystal and oscillator design techniques, the T1300 offers g-sensitivity of <0.05 ppb, or 5 x 10-11/g of applied acceleration force. This is an order of magnitude improvement when compared with the best performance of commercial tcxos currently available, and enables customers to extend their system operating environment while maintaining spec-compliant operation. The t1300, when operating under random vibration, can offer phase noise improvements of more than 40db compared to conventional tcxos - and better performance than most ocxos.
T1300 Data Sheet ___ T1300 Announcement
New T120 TCXO Announced
November, 2008 - Greenray Industries, Inc. announced the availability of the Model T120 TCXO. The T120 temperature compensated crystal oscillator provides superior stability performance, with temp stability available to ±0.3ppm over -40 to +85°C, and low noise. The T120 measures 17.78 x 17.78 x 3.81 mm and features rugged construction for consistent, reliable performance in high shock and vibration environments. In addition, the low power requirements of the T120 make it an excellent choice for mobile applications. The T120 offers a frequency range of 10MHz to 50MHz, supply voltage of 3.3 or 5.0Vdc and CMOS output.
T77 TCXO Now Available
August, 2008 - Greenray Industries, Inc. announced the availability of the T77 Series TCXO. The T77 temperature compensated crystal oscillator has been designed for a variety of wireless applications and is particularly suited to mobile, battery-powered applications including GPS, WiMAX, as well as exploration and tracking equipment where reliable, precision stability is not effected by vibration and temperature fluctuations. The T77 measures just 7mm x 5mm x 2mm and offers stability to ±0.5ppm over -40 to +85°C. The T77 offers a frequency range of 10MHz to 50MHz and supply voltage of 3.3V.
T77 Data Sheet ___ T77 Announcement
New YH1518 OCXO: Excellent Phase Noise & Compact Package
February, 2008 - Greenray Industries, Inc. has announced the availability of the YH1518 Series OCXO.
Greenray has combined precision crystal technology with a low noise oscillator and multiplier to develop this new family of miniature, ovenized crystal oscillators capable of delivering excellent phase noise performance through 250MHz.
The YH1518 Series design utilizes a precision SC-cut crystal to help achieve low noise performance. SC-cut crystals provide a High Q to reduce the noise close to the carrier - yet are able to withstand the high drive levels necessary for a low noise floor. The oscillator circuit drives a low noise frequency multiplier to increase the frequency up to 250MHz. A thermally enhanced internal assembly enables the use of a small, 1.06 in. x 1.42 in. x 0.5 in. hermetic package. Supply voltage is +12Vdc and typical Temperature Stability is ±0.07ppm over -40°C to +70°C. A Sinewave output of +3dBm min. (+6dBm typical) is provided.
YH1518 Data Sheet ___ YH1518 Announcement
Greenray Hits Top 10 at RF Globalnet - Again
For three years running, a Greenray Industries Technical Paper has been among the top 10 downloads at the RF Globalnet website.
Greenray engineer Steve Fry's Application Note, "The Design and Performance of Precision Miniature TCXOs", provides readers an overview of the history of crystal oscillator temperature compensation and describes the current state-of-the-art in TCXO temperature compensation technology.
Click on the TOP 10 of 2007 icon to visit RF Globalnet and view "The Design and Performance of Precision Miniature TCXOs"
T1220 TCXO Offers OCXO Stability
April, 2007 - Greenray Industries, Inc. has announced the availability of the T1220 Series TCXO.
The T1220 temperature compensated crystal oscillator offers OCXO-like temperature stabilities - as low as ±7 x 10-8 - and the operating temperature range can be specified as wide as -50 to +95°C. Equally impressive, the T1220 features current consumption of less than 30mA.
The T1220 has been designed for applications that require tight stability, low input power (virtually no heat dissipation) and no warm-up time. The T1220's compact, industry-standard package measures just 0.8 in. x 0.5 in. x 0.33 in. (20.32 mm x 12.70 mm x 8.38 mm). With a rugged package and excellent g-sensitivity, the T1220 Series TCXO is ideal for portable as well as airborne applications with demanding environments. The T1220 is available from 10.00 MHz to 50 MHz and with either a 3.3 V or 5.0V supply voltage.
T1220 Data Sheet ___ T1220 Announcement
Greenray Among Top 10 at RF Globalnet
For the second year in a row, a Greenray Industries Technical Paper has been among the top 10 downloads for the year on the RF Globalnet website.
Greenray engineer Barry Kleinle's tech brief, "Phase Noise Explained", proved to be must reading for designers and engineers seeking up-to-date information about phase noise as it relates to crystal-based oscillator component design and manufacture.
RF Globalnet, established in 1996, is an online trade publication and resource center for the RF/microwave design industry.
Click on the TOP 10 icon to visit RF Globalnet and and view "Phase Noise Explained."
RF Design Magazine: Precision Miniature TCXOs
Greenray engineer Steve Fry's Feature Story in the September 2006 issue of RF Design Magazine describes the current state-of-the-art in TCXO technology and associated crystal resonators.
Precision Miniature TCXOs (pdf)
T1177 and T1185 Miniature TCXOs Introduced
June, 2006 - Greenray Industries, Inc. announced the availability of a new family of miniature, high performance TCXOs. Model T1177 and Model T1185 TCXOs combine precision crystal technology, proprietary temperature compensation techniques and low jitter frequency multiplication to achieve tight stabilities at frequencies up through 800MHz. By employing low noise, digitally programmed analog compensation, which is calibrated using a proprietary temperature test system, the new TCXOs achieve the best frequency vs. temperature specs available in a miniature TCXO at these frequencies.
