22 September 2021
RFX launches new ultra-low phase noise OCXO
RFX has announced the release of its new high performance OS936-10 series Oven Controlled Crystal Oscillator (OCXO) that delivers close in phase noise at 130dBc/Hz @10Hz and far out phase noise as low as -178dBc/Hz @ 100kHz. Phase noise in systems is an important parameter, for instance high performance radar systems rely on the detection of extremely faint return signals from the target and the lower the phase noise the sharper the return and greater the range. Digital systems see the effect of phase noise in the time domain as jitter, the lower the phase noise the lower the jitter and communication systems see the effect of phase noise in signal bandwidth, the lower the phase noise the lower the bandwidth required, which can affect channel width.
Available in frequencies from 1 to 150MHz and incorporating a high-performance noise-optimised SC-Cut crystal, short term ageing over 30 days is ±0.1ppb maximum per day whilst long term ageing is ±50ppb maximum per year after 30 days continuous operation. With an optimised control and heating circuit design, the OS936-10 delivers a frequency stability of ±10ppb over the wide -40 to 70 Deg. C operating temperature range.
As standard the OS936-10 is available with a supply voltage of 12Vd.c. and sine wave output compatibility making them suitable for a wide range of applications. However, due to the flexible nature of the design, alternative supply voltages (3.3Vd.c., 5Vd.c. or 24Vd.c.) and output compatibilities to suit almost any application can be readily developed to meet individual customer requirements.
Housed in a 36 x 26.5mm package with a height of only 10mm, the new model also incorporates an electronic trim option of ±0.5ppm minimum (2.25±2.25Vd.c.). Fully RoHS compliant, the OS936-10 series meets vibration, mechanical and thermal shock to MIL standard 202F. Design-in samples are ex-stock; lead time for production quantities is 8 weeks.
Typical applications include base stations, instrumentation, military communications, optical networking, radar, repeater stations, satellite test and measurement equipment. For full details on the OS936-10 series OCXO, please visit www.rfx.co.uk or for further advice, speak to a member of our Sales or Applications Support team.
Notes for Editors:
Established in 1994, RFX is a specialist frequency product manufacturer with production plants in the UK and Canada.
The company designs and manufactures innovative standard and bespoke high frequency precision OCXO, TCXO, VCXO and PLL oscillators from 1MHz to 2.4GHz and GPS synchronised precision OCXO modules from its modern production unit based in Livingston, Scotland. Our quartz crystal division, Laptech Precision Inc., manufactures precision quartz resonators from its 15,000ft2 (1,400m2) facility in Ontario, Canada.
RFX’s oscillators are used in a multitude of worldwide applications including GPS Satellite Navigation Systems, Satellite Positioning Systems, Mobile Telephone Base Stations, System Networks including ATM, SDH, STM, Sonet, WAN and LAN Networks and Precision Measuring Equipment. A previous recipient of a ‘Queen’s Award for Innovation’, RFX is accredited to ‘Investors in People’, ISO 9001 Quality Management Systems and ISO 14001 Environmental Management.
As pioneers in industrial lapping and polishing techniques, Laptech Precision, established in 1972 and acquired by RFX in 2010, supplies specialist quartz crystals to oscillator manufacturers worldwide as well as high quality components to instrumentation and telecom industries. Laptech also offers quartz and alloy precision lapping and polishing to exacting parallel and optical polish standards. Continued factory development with new clean room facilities and equipment for crystal production to 500MHz keeps Laptech at the forefront of quartz resonator design. For more information, visit www.rfx.co.uk.
Steve Wilson, RFX Ltd
T: +44 (0)1506 439222