SJR-BTM544蓝牙5.2模块详解：高性能、低功耗设计

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"SJR-BTM544是一款由SkyJiarun Technologies Co., Ltd.推出的高性能、低成本、低功耗的蓝牙模块，专门针对蓝牙5.2标准设计。该模块基于QCC5144 BGA芯片组，这是一个集成了射频和基带功能的一体化单芯片解决方案，适用于2.4GHz蓝牙系统。它提供了完整的蓝牙v5.2系统支持，具备双模式功能，每种模式下工作频率高达120MHz，这得益于Qualcomm® KaliMiB技术。此模块的主要特性包括： 1. 符合蓝牙5.2规范：确保了与最新标准的兼容性，提供高效的数据传输和音频性能。 2. 单芯片双模式：通过集成设计实现高效能，用户可以根据需求在蓝牙低功耗（BLE）和经典蓝牙（BR/EDR）两种模式间切换。 3. 高性能：120MHz的工作频率有助于提升数据传输速度和范围，适应高速度、大容量的应用场景。 4. 节能设计：作为低功耗模块，BTM544旨在延长电池寿命，对于移动设备或物联网设备尤其关键。 5. 小巧轻便：模块采用紧凑的封装设计，方便集成到各种尺寸受限的设备中。 6. 电气特性部分详细列出了安全操作限制和推荐的操作条件，以及推荐的再流焊温度曲线，确保了模块在不同环境下的稳定工作。 7. 除了以上核心信息，文档还包含了模块的引脚布局图、尺寸规格、安装指南等实用内容，帮助工程师们快速理解和应用这款产品。 SJR-BTM544是一款高度集成且易于使用的蓝牙模块，适用于智能家居、穿戴设备、无线音频等领域，是开发者构建下一代无线连接解决方案的理想选择。"

1 Introduction

Sky Jiarun Technologies

introduces the pioneer of the Bluetooth

5.2 modules SJR-BTM544 which is a high performance, cost effective, low power

and compact solution. The Bluetooth module provides a complete 2.4GHz

Bluetooth system based on the QCC5144 BGA chipset which is a single

chip radio and baseband IC for Bluetooth 2.4GHz systems. This module is fully

qualified single-chip dual mode Bluetooth@v5.2 system.

2 Key Features

BTM544(QCC5144) Features

 Qualified to Bluetooth v5.2 specification

 Dual 120 MHz Qualcomm® Kalimba™ audio DSPs

 32/80 MHz Developer Processor for applications

 Firmware Processor for system

 Flexible QSPI flash programmable platform

 High-performance 24‑ bit stereo audio interface

 Digital and analog microphone interfaces

 Flexible PIO controller and LED pins with PWM support

 Serial interfaces: UART, Bit Serializer (I²C/SPI), USB 2.0

 Advanced audio algorithms

 Active Noise Cancellation: Hybrid, Feedforward, and Feedback modes, using

Digital or Analog Mics, enabled using license keys available from Qualcomm®

 Qualcomm® aptX

™

and aptX HD Audio

 aptX Adaptive, enabled using license key

 Qualcomm® cVc™ Noise Cancellation Technology, enabled using license key

 Integrated PMU: Dual SMPS for system/digital circuits, Integrated Li-ion battery

charger

Application subsystem

 Dual-core application subsystem 32/80 MHz operation

 32-bit Firmware Processor (reserved for system use) executes:

 Bluetooth upper stack

 Profiles

 House-keeping code

 32-bit Developer Processor executes:Developer applications

 Both cores execute code from external flash memory using QSPI clocked at 32

MHz or 80 MHz

 On-chip caches per core enable optimized performance and power consumption

Bluetooth subsystem

 Qualified to Bluetooth v5.2 specification including 2 Mbps Bluetooth Low Energy

 Single ended antenna connection with on-chip balun and Tx/Rx switch

 Bluetooth, Bluetooth Low Energy, and mixed topologies supported

 Class 1 support

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