Digital TCXO provides extremely high accuracy
Operating from a 3.3 V ± 5%, the DS4026 digital TCXO provides frequency accuracy ad stability better than ±1.0 ppm over 40 to 85C. Over a 15-year operational life, the device is accurate to better than ±4.6 ppm and provides a phase noise performance of better than 140 dBc/Hz at 1-kHz-offset.
This digitally tunable part employs calibration techniques that negate the effects of electromechanical stress, thermal variations, and frequency perturbations (also known as “activity dips”) that can be excited in all crystal elements as they operate over temperature. Frequency trimming and temperature reading are accomplished through an I2 C control interface, and housing is in a standard 300-mil 16-pin SO package. ($20 ea/10,000samples available now.)
Maxim Integrated Products , Sunnyvale , CA
Customer Service 800-998-8800
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