Proving the Business Case for the Internet of Things

IDT clock generators reduce power for IoT devices

Steve Rogerson
August 7, 2019

California-based Integrated Device Technology (IDT) has launched a family of clock generators for small, battery-powered devices, such as smart watches, hearables, fitness monitors, portable medical equipment and devices connected to the IoT.
IDT, which this year became a wholly owned subsidiary of Japan’s Renesas Electronics, says its MicroClock devices combine a small form factor, low power consumption and programmability.
The ICs can be as small as 2 by 2mm and can output up to three unique frequencies, reducing the board space needed for timing devices by up to 80 per cent. This is an advantage for small, battery-powered devices, enabling product designers to increase battery size or shrink the overall size of the product by eliminating the need for multiple, discrete crystal oscillators, as well as providing a more reliable clock source.
Power consumption is less than 1μA thanks to its low-power 32.768kHz clock that supports the system’s real-time clock needs. This low power consumption increases battery life, a key advantage for smart wearables and other consumer devices as they can operate longer between charges. Low power is also important for IoT-connected sensors used in smart city, industrial and other applications that operate where electrical power is unavailable.
The programmability of devices means they can easily be configured to meet the requirements of each application. Examples include programmable VCO and PLL source selection, which enables users to optimise power consumption based on application requirements.
"IDT's MicroClock family of clock generators enables manufacturers to get smart wearables, fitness monitors and other small, battery-powered devices to market faster thanks to a combination of programmability, small size and low power," said Bobby Matinpour, vice president and general manager of IDT's timing products division. "With MicroClock devices, manufacturers can simultaneously meet their key goals of maximising battery life while decreasing the overall size of their devices."
IDT develops products for RF, high performance timing, memory interfaces, real-time interconnect, optical interconnect, wireless power and smart sensors. The mixed-signal devices target the communications, computing, consumer, automotive and industrial segments. Headquartered in San Jose, California, IDT has design, manufacturing, sales facilities and distribution partners throughout the world.