KVG has released new SMD OCXOs with dimensions of 25 x 22 x 15 mm, based on a new design using phase noise optimised SC-cut crystals to improve electrical and thermal design.
The devices exhibit tight frequency stability of ±5 ppb in the temperature range of –20°C to +70°C, or ±10 ppb from –40°C to +85°C. The long-term stability (ageing) is better than ±1 ppb per day, better than ±0,1 ppm per year and less than ±1 ppm over 15 years. Phase noise at 10 Hz from the carrier is better than
-130 dBc/Hz (optional -135 dBc/Hz); at 100 Hz it is -155 dBc/Hz and at 1 kHz it is -165 dBc/Hz; the noise floor is in the range of -170 dBc/Hz, typically. Due to the low phase noise figures, these OCXO are designed for a supply voltage of +12 V; the output signal is a pure sine wave with +6 dBm min. at low harmonics. The standard frequency is 10 MHz, while further frequencies are available on request.
The series 6000 OCXOs are dedicated for applications such as reference clock for mobile test and measurement systems, microwave signal sources and medical instruments.
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