TI蓝牙手持机解决方案

   <中电RONG> Bluetooth Headset

    Block Diagram

    Design Considerations

    A Bluetooth headset is a wireless headset. It implements Bluetooth technology to provide 2.45GHz-radio wireless connectivity for audio communication.  The core subsystems include:

    RF Front-End - includes RF filter, balun (line matching), and RF transceiver (ADdulator/Demodulator/STC/DAC). The RF front-end provides the wireless link through the antenna. 

    Baseband DSP/Microcontroller/Memory - the DSP processes physical layer protocols and audio data. The microcontroller runs the Bluetooth software stack stored in memory and controls the RF/host interfaces. The Bluetooth software and data are stored in ROM/RAM. Upgraded firmware may be loaded from FLASH memory.

    Audio Codec - connected to microphone and earpiece to perform analog/digital conversions and bit stream coding/decoding to create audio radio.

    Host Interface/Volume Control - host or user can use this serial interface to configure the processor, codec, or changes the volume.

    Power Conversion - converts input battery power to run various functional blocks.

    Battery Management - charges the battery using wall or USB voltage.
    For more information on Bluetooth Products from Texas Instruments visit Wireless Solutions for Bluetooth Technology.

(源自：Mo网)