数字电源管理如何提高蓝牙无线收发器在物联网中的性能

　　数字电源管理如何提高蓝牙无线收发器在物联网中的性能

　　功耗是一个关键的设计标准，无线传感器节点必须容易连接到物联网。

　　跨越无线收发器和微控制器的电源管理是实现尽可能低的功耗，以实现最长的电池寿命的重要组成部分，但它可能需要一个复杂的硬件，软件和分析混合。

　　从Silicon Labs的bgm113是一个完全集成的蓝牙低能量模块相结合，注册一个2.4 GHz蓝牙系统芯片，高效陶瓷芯片天线和蓝牙4.2-compliant软件栈。

　　The low-power EFM32 Gecko microcontroller technology is combined with an ultra-low-power Bluetooth Smart transceiver on a single die. This allows for more effective digital power management with fast wake-up times， higher RF sensitivity and transparent management of the peripherals to minimize the power used. The fully-integrated power amplifier and balun allows for a +10 dBm boost in RF sensitivity with more opportunities for power management closely coupled to the application.

　　The ARM® Cortex®-M4 core supports 128 to 256 kB flash sizes and 16 to 32 kB RAM sizes alongside a range of low-energy peripherals that are connected via the Peripheral Reflex System （PRS）。 This allows them to operate autonomously from the controller as part of the digital power management.