Crystek launches ultra-low phase noise clock oscillator

by K C Krishnadas, TechOnline India - January 06, 2012

The company hopes it will be a leading choice for use in digital-to-analog converters, analog-to-digital converters and digital audio broadcasting.

Crystek Corporation has announced the CCHD-957, a new ultra-low phase noise HCMOS clock oscillator with standby mode, featuring a low close-in phase noise of -100 dBc/Hz @ 10Hz offset and a typical noise floor of -170 dBc/Hz @ 100kHz offset. This, the company hopes, will cause its clock oscillator family to be a leading choice for use in applications such as: DACs (digital-to-analog converters), ADCs (analog-to-digital converters), DAB (digital audio broadcasting), and professional CD audio equipment. 



The clock oscillator also features a 'standby function' – when placed in disable mode, the internal oscillator is fully shut down and its output buffer is placed in Tri-State. This family is housed in a 9x14 mm SMT package and operates with a +3.3V power supply consumring 15mA of current. Stability is rated at 20-50ppm (0°C to +70°C) and ±25-50ppm (-40°C to +85°C).

The CCHD-957 generates frequencies between 10MHz and 50MHz and its output driver is capable of driving ±24mA, translating to a rise/fall time of ~3nsec Max at 20% to 80% Vcc with a 15pF load.
For datasheets and more information visit

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