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智能蓝牙模块解决方案—Ameya360电子元器件平台
Release time：2019-08-13
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source：Ameya360
reading：1793
1、 前言
蓝牙模块，是一种集成蓝牙功能的 PCBA 板，用于短距离无线通讯，按功能分为蓝牙数据模块和蓝牙语音模块。蓝牙模块是指集成蓝牙功能的芯片基本电路集合，用于无线网络通讯，大致可分为三大类型：数据传输模块远程控制模块等。一般模块具有半成品的属性 [1]，是在芯片的基础上进行过加工，以使后续应用更为简单。
2、 方案概述
Ameya360蓝牙模块解决方案具有片内数字无线处理器DRP（DigitalRadioProcessor）、数控振荡器，片内射频收发开关切换，内置 ARM7 嵌入式处理器等。接收信号时，收发开关置为收状态，射频信号从天线接收后，经过蓝牙收发器直接传输到基带信号处理器。基带信号处理包括下变频和采样，采用零中频结构。数字信号存储在 RAM（容量为 32KB）中，供 ARM7 处理器调用和处理，ARM7 将处理后的数据从编码接口输出到其他设备，信号发过程是信号收的逆过程，此外，还包括时钟和电源管理模块以及多个通用 I/O 口，供不同的外设使用。它的主机接口可以提供双工的通用串口，可以方便地和 PC 机的 RS232 通信，也可以和 DSP 的缓冲串口通信。
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