IQD have launched what they claim to be the world’s smallest 32.768 kHz clock oscillator that measures just 1.6 x 1.2 x 0.7mm in a hermetically sealed ceramic package. With a current consumption of only 30 µA and with a standby current as low as 3 µA, this ultra-low power clock oscillator is ideal for use in hand held and battery operated applications where accuracy is required in real time clocks. Typical applications for this oscillator include battery management systems, communication modules and systems (Bluetooth, Wi-Fi, Wireless LAN & Zigbee), LCD lighting systems and smart meters (AMR).
This new range of oscillators delivers better temperature characteristic than standard 32.768 kHz 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 voltage configurations: 1.8V (IQXO-986), 2.5V (IQXO-985) and 3.3V (IQXO-984) with frequency stabilities of ±30 ppm over an operating temperature range of -20 to 70 degrees C or ±50 ppm over -40 to 85 degrees C.
