低功耗蓝牙耳机应用

Fifth International Workshop on System-on-Chip for Real-Time Applications (IWSOC'05) Pub Date : 2005-07-20 DOI:10.1109/IWSOC.2005.82

C. Cojocaru

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引用次数: 2

摘要

蓝牙耳机要求在极低的功耗下具有高的无线电性能。采用0.5 /spl mu/m BiCMOS工艺实现的蓝牙(BT)收发器供电电压为1.8 V，接收时功耗小于24mA，发送时功耗小于18mA。接收机具有-91dBm的灵敏度和同类最佳的拦截性能。架构，电路和无线电性能进行了审查。基于该收发器的蓝牙耳机在64kb/s HV3语音链路中消耗12mA，通话时间为10h，重量仅为14g。

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Low power Bluetooth for headset applications

Bluetooth headsets demand high radio performance at extreme low power consumption. A Bluetooth (BT) transceiver implemented in a 0.5 /spl mu/m BiCMOS process is supplied at 1.8 V and consumes less than 24mA when receiving and less than 18mA when transmitting. The receiver has -91dBm sensitivity and best-in-class blocker performance. Architecture, circuits and radio performance are reviewed. A Bluetooth headset based on this transceiver consumes 12mA in a 64kb/s HV3 voice link, has 10h talk time and weighs only 14g.

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Fifth International Workshop on System-on-Chip for Real-Time Applications (IWSOC'05)

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