High-stability, low-cost 5 x 3.2 TCXO enhances
tracking of GPS signals
C-MAC MicroTechnology has launched a range of miniature, low-cost, RoHS compliant TCXOs (temperature compensated crystal oscillators) offering frequency stability of ±0.5 parts per million over the –40° to +85°C temperature range. Packaged as a standard 5 x 3.2 mm SMD, the new CFPT-127 offers a range of output frequencies between 16.32 and 33.6 MHz.
The CFPT-127 has been designed specifically for GPS equipment, providing a DC-coupled clipped sinewave output at standard frequencies of 16.32, 16.8, 19.2, 24.5535, 26.0 and 33.6 MHz. Drawing just 2 mA (typical) from a 3 V supply, its low power requirement and tiny 5 x 3.2 mm package size make it ideal for use in handheld and portable receivers, while its ±0.5 ppm temperature stability imparts high sensitivity in detecting and tracking weak signals. In this way, a tiny low-cost component enhances both the performance and the battery life of GPS systems.
The CFPT-127 is supplied on standard tape and reel and supports lead-free reflow soldering at 260°C. Typical ageing over the first year is ±1 ppm at 25°C.
"GPS technology is fast moving into the mainstream, not least in mobile handsets and automotive satellite navigation systems," said Mary Carbin, Business Development Manager — Frequency Control Products with C-MAC MicroTechnology. "This means that each system component must be competitive in every respect. Among GPS timing devices, the CFPT-127 represents the best combination of performance enhancing stability, compact design, low price and efficient delivery."
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Notes for Editors
Headed by Indro Mukerjee, C-MAC MicroTechnology is the world leader in high-reliability electronic systems, modules and components for the automotive, medical electronics, specialised communications and aerospace industries. Our head office is in Wooburn Green, UK, and we have design and manufacturing facilities in the UK, France, Belgium and Canada, with additional dedicated sales and customer support teams throughout Europe, the USA and China. We have built up an extensive intellectual property portfolio and considerable electronics design and manufacturing expertise geared to our target industries. Our products are often found in applications that operate in harsh environments, at extremes of temperature or frequency. The company is divided into two business groups.
Design & Manufacturing Services. C-MAC MicroTechnology offers unrivalled expertise in the design and manufacture of advanced high-precision microelectronics systems. Specialities at our production sites at Great Yarmouth in the UK, Sherbrooke in Canada and Ronse in Belgium include thick-film printing on ceramic and other substrates, surface-mount hybrid circuits, DC/DC power modules, direct-attach flipchip, low-temperature cofired ceramic (LTCC), chip-on-board (COB), multichip module (MCM) assemblies and PCB assembly. These manufacturing resources are complemented by an integrated design-to-test service encompassing ASIC design as well as analogue, digital, RF, mixed-mode and thermal simulation. Through our independently accredited test house facility, we can carry out product qualification and material evaluation to internationally recognized standards.
Frequency Control Products. C-MAC MicroTechnology has a 70-year pedigree in designing and manufacturing high-performance oscillators and quartz crystals. Our frequency control product range encompasses AT and SC cut crystals, simple packaged crystal oscillators (XOs or SPXOs), voltage controlled crystal oscillators (VCXOs), temperature compensated crystal oscillators (TCXOs), oven controlled crystal oscillators (OCXOs), and rubidium oscillators and clocks. Particular specializations include patented ASIC-based high-stability TCXOs, ultrastable OCXOs and SDH/SONET reference oscillators. Manufacturing of quartz-based products at Lincoln, UK, and Argenteuil, France, is supported by design and sales support centres at Harlow and Crewkerne in the UK.
C-MAC’s quality standards and accreditations include: ISO 13485, ISO 9001:2000, MIL-PRF-38534, MIL-STD-883, QS 9000, TS 16949, and ISO 17025 independent test house accreditation.
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