Wide-temperature range, low-jitter crystal oscillator

February 09, 2015 // By Graham Prophet
This range of oscillators offers wide operating temperature range, femtosecond integrated phase jitter and enhanced phase noise performance.

Euroquartz’ XON91 and XON53 oscillators offer frequencies from 1.25 to 60 MHz and are capable of withstanding temperatures from -55 to +125°C. Phase jitter is typically 500 fsec from 12 kHz to 20 MHz integrated. XON91 series oscillators are available in 7 x 5 x 1.8 mm surface mount packages while XON53 devices are in 5 x 3.2 x 1.2 mm miniature housings. Both feature a standard 4-pad layout.

For use in applications including military COTS (commercial off-the-shelf) projects and industrial control systems, these new oscillators offer stability of ±100 or ±50 ppm over the specified operating temperature range and also offer excellent phase noise performance (from -85 dB/Hz typical at 10 Hz to -155 dB/Hz at 10MHz). Versions of both ranges are available for operation from 1.8, 2.5, 3.3 and 5V supplies with current consumption down to 7 mA depending on frequency. Additional specifications include rise times of 7 nsec or 10 nsec maximum depending on supply voltage, 15 pF load, start up time of 5 or 10 msec depending on frequency and ageing of ±2ppm maximum for first year. Solder profile is 260°C maximum.

Euroquartz; www.euroquartz.co.uk