32.768 kHz crystal oscillator with a frequency drift of only ±35 ppm

September 11, 2012 // By Julien Happich
MSC now offers the DSO321SR-32K crystal oscillator from Daishinku Corporation. This 32.768 kHz crystal oscillator features a frequency drift of only ±35 ppm over a wide temperature range from -40 to +85°C.

Typically, in this frequency range of 32.768 kHz, tuning-fork crystals are used, with a parabolic frequency drift versus temperature curve of about -150 ppm over the same temperature range. Due to the special AT-cut of the DSO321SR-32K, a 32.768 kHz crystal oscillator with a significantly higher frequency stability is now available for the first time. Additional features of the DSO321SR-32K include a compact 3225 size package measuring 3.2x2.5mm, a relatively low current consumption of 35 µA typical and a wide operating voltage range from 1.62 V to 5.5 V. The device is lead-free and RoHS compliant, well suited for use in timer module and real-time clock (RTC) applications.

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