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| TI蓝牙手持机解决方案 | |||||
作者：TI 文章来源：本站 点击数： 更新时间：2007-3-18  |
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Block Diagram  align=center> 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 (Modulator/Demodulator/ADC/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 |
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