Frequency

OCXO delivers exceptional frequency stability at ±0.2ppb

4th June 2014
Nat Bowers

Delivering exceptional frequency stability performance at ±0.2ppb over an operating temperature range from -20 to +70°C, the IQOV-164 series oven controlled crystal oscillator (OCXO) has been unveiled by IQD Frequency Products. It can also be specified to operate over a wider temperature range from -30 to +75°C with only a minor drop in temperature stability performance at ±0.5ppb.

Available over a frequency range of 10-40MHz, this ultra high stability OCXO consumes a maximum of 7.0W during warm up time (which takes only 3 minutes). Frequencies are available up to 100MHz with a lower stability of ±10ppb over -30 to 75°C. Designed to operate from a 3.3V supply, the IQOV-164 is housed in an industry standard 5-pin euro package measuring 36x27x13.5mm.

Output can be specified as either HCMOS, 15pF load or Sinewave, into 50Ω load. Phase noise performance is typically -158dBc/Hz at 100kHz offset and the IQOV-164 can be specified with different frequency pulling options in order to offset the impact of ageing. Typically ageing is ±0.2ppb per day, ±10ppb per year depending on the required specification.

With the IQOV-164 offering such exceptional frequency temperature stability combined with a short term stability of 1E-11/S it is particularly suitable for a range of applications including: 4G and LTE base stations, test & measurement, GPS, radar, communications, point to point communications and Sonet/SDH.

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