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OCXO Module targets LTE and 4G base stations.

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April 8, 2014 - Housed in 65 x 65 mm hermetically sealed through-hole package, IQCM-100 GPS advanced OCXO Module achieves holdover specification of 1.5 µs over period of 24 hours when locked to 1 PPS input from external GPS receiver. Device incorporates adaptive algorithm which has ability to learn from stable GPS signal over period of 2 days. Frequency is accurate to within ±1E-12 when locked to 1 PPS GPS signal. Operating from -10 to 60°C, IQCM-100 features HCMOS output and 5 V supply voltage.

New GPS Advanced OCXO Module from IQD Designed for LTE & 4G Base Stations


IQD Frequency Products
2570 N First Street
San Jose, CA, 95131
USA



Press release date: March 27, 2014

IQD’s new IQCM-100 GPS advanced OCXO module for use in LTE and 4G base stations achieves a holdover specification of 1.5 microseconds over a period of 24 hours when locked to a 1PPS (Pulse Per Second) input from an external GPS receiver, easily meeting industry standard holdover requirements.

Incorporating an adaptive algorithm which has the ability to ‘learn’ from a stable GPS signal over a period of 2 days, the algorithm can be adjusted to allow for errors. Frequency is accurate to within ±1E-12 when locked to a 1PPS GPS signal and can compete with the performance of many atomic clock references.

Housed in a 65 x 65mm hermetically sealed thru-hole package, the IQCM-100 offers an HCMOS output, operating temperature range of –10 to 60 degrees C, 5V supply voltage and a current input of 2mA during warm up.

The module incorporates a low drop out voltage regulator coupled to a highly stable internal OCXO which is conditioned by a digital-to-analogue converter which in turn is fed from an ARM microcontroller. This controls an FPGA which provides the 1PPS output and is fed from the accurate GPS signal.

An interesting feature of this product is the availability to the user of some 21 internal algorithm parameters. Using a serial data word output, the user can access information including current status (warm up, holdover or lock); time since attaining lock status; current phase shift between signal input & output; average phase shift over the last hour.

Backed by a pedigree that has been developed over 40 years, IQD Frequency Products is a recognised market leader in the frequency control market. We have operations in America, Asia and Europe including our specialist high performance product manufacturing division, IQD FOQ GmbH in Germany where we offer a full custom design service, with special emphasis on low phase noise OCXOs based around our own in-house manufactured SC-cut crystals.

With active customers in over 60 countries, IQD offers one of the most comprehensive frequency product ranges available, from low cost commercial grade product to that used in high reliability military and professional grade applications, including: Quartz Crystals, Crystal Oscillators, Fast Make Oscillators, VCXOs, TCXOs, OCXOs, Rubidium Oscillators, Automotive Crystals to AEC-Q200 & TS16949 release and Real Time Clock,.

Quality and customer service are the cornerstones of our success and we are absolutely focussed on consistently meeting and exceeding customer expectations. We take a partnership approach to working with our customers. Our experienced multilingual Sales and Application Support teams guide customers from design stage through to full production.

IQD’s products are specified by leading manufacturers in the aerospace, automotive, communications, computing, consumer, industrial, medical and military industries throughout the world. We work with several premier chip-set designers on a variety of key projects and hold approvals on a number of products including high specification oscillators. Our full range of products is available direct from all of our offices or via our extensive worldwide distribution and representative network. Full contact details are available on our website at www.iqdfrequencyproducts.com.

Further information:
Harriet Charles
IQD Frequency Products Ltd
T: +44 (0)1460 270200
E: harriet.charles@iqdfrequencyproducts.com
W: www.iqdfrequencyproducts.com
 
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