Frequency

The 'world's smallest' 32.768kHz clock oscillator

19th April 2016
Nat Bowers
Datasheets

Measuring just 1.6x1.2x0.7mm, IQD Frequency Products has launched what it hails as the world’s smallest 32.768kHz clock oscillator in a design that also delivers very low power. Housed in a hermetically sealed ceramic package and featuring current consumption of only 30µA and standby current as low as 3µA, this ultra-low power clock oscillator is suited for use in hand held and battery powered applications and where accuracy is required in real time clocks.

Typical applications for the IQXO-986, IQXO-985 & IQXO-984 include battery management systems, communication modules and systems (Bluetooth, WiFi, Wireless LAN & Zigbee), LCD lighting systems and smart meters (AMR).

The range delivers better temperature characteristic than standard 32.768kHz tuning fork crystal based oscillators due to the use of an AT-cut crystal normally found in higher frequency oscillators. Start-up time is only 7ms at 3.3V with a rise and fall time of 200ns.

These CMOS based oscillators are available in three supply voltages: 1.8V (IQXO-986), 2.5V (IQXO-985) and 3.3V (IQXO-984) with frequency stabilities of ±30ppm over an operating temperature range from -20 to +70°C or ±50ppm over a -40 to +85°C range.

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