Optimized for Battery Life and Reliability: Quartz Crystals for IoT and Wearable Devices
The demand for battery operated/long-life wireless devices is increasing. Developers commonly apply super low power System-On-Chip (SoC) radio/processors to support small devices with multi-year battery life. Often, the dominant factor in such a product’s cost and size is the battery, with battery size dominated by the standby current, and standby current dominated by the low-frequency clock-oscillator.
This Application Note discusses how to reduce oscillator power consumption, while achieving optimal oscillation margin – using quartz crystals designed to mate with energy saving low power SoC’s. Published measurements demonstrate key principles essential for the design of a reliable, low power oscillator.
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