通过越来越复杂的智能手机和移动设备，提供更多功能和未经保育的即时访问数据，新闻和娱乐，消费者正在使用其设备花更多的时间。用户要求更快的连接，多核GHz +应用程序处理器和高清分辨率触摸屏，而同时期望持续更长时间的电池充电。移动设备设计人员必须仔细考虑如何应对扩展电池寿命的冲突需求，同时支持更快，更耗电的处理器和LCD屏幕。必威体育官网手机登录设计选项通常分为两个主要类别：1。减少整体功耗，或2.增加电池容量。
Battery and display technologies have not kept up with the exponential progress in semiconductor design and processes over the last decade. With the space and weight constraints of MIDs, only incremental increases in battery capacity are possible using current battery technologies. Designers are left to employ creative ways to reduce overall power consumption. One technique to reduce power consumption is to shut down the functional blocks with the highest current drain and switch to the lowest power suspend/sleep state when devices are inactive. However, during the low power state, the always-ON clocks continue to draw battery power. New MEMS-based time-keeping solutions offer unique power saving strategies with programmable output frequencies and output drive swing levels. Drawing a mere 750 nA core current, these timing devices can run off of an unregulated LiIon or regulated power, thus bringing more options to mobile device designers.
