The 'world's smallest' 32.768kHz clock oscillator

Posted By : Nat Bowers
The 'world's smallest' 32.768kHz clock oscillator

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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