IQD's new IQOV-70 series OCXO, which is launching at Embedded World 2013, is for use in next-generation multimode base-station platforms. Operating at a frequency of 10 MHz, the new model achieves a frequency stability of ±3 ppb over the operating temperature range of ?10 to +70 °C. Multimode base-station platforms are based upon TD-LTE (time-division long-term evolution) technology and can fully support HSDPA/MBMS/HSUPA/HSPA+ which share the same platform as LTE with its super-high capacity. This enables it to accommodate many situations including densely populated and suburban areas, rural areas, and indoor locations. The new design is built around an SC-cut (stress compensated) crystal, designed and manufactured in-house at IQD FOQ where the latest techniques in thermal modeling have been developed over many years and significantly contributes to the excellent performance. Output capability can be either HCMOS or LV-TTL with supply voltage options of 5 or 12 V. Electrical frequency adjustment of ±0.4ppm min allows for ageing over time. Phase noise performance of < ?155 dBc/Hz at an offset of 10 kHz is particularly important bearing in mind the application and its need for high capacity data transfer. Frequency ageing is limited to ±0.05 ppm maximum over a period of one year. As standard, the design is housed in an industry standard IEC C008 5-pin Euro package with a height of only 13 mm max but surface mount packages are also available. Further details will be available at IQD's stand 152 in Hall 1 at Embedded World 2013, 26-28 February. IQD Frequency Products
