【应用】极海低功耗双模蓝牙5.2芯片GW3323用于无线蓝牙对讲机，实现实时通信与数据分享同步传输
一直以来，蓝牙作为一种短距离无线网络通信技术，在传输距离、功耗、成本、效率和安全性上具有较大的优势，根据蓝牙技术联盟（Bluetooth SIG）发布的2022蓝牙市场资讯报告，到2026年蓝牙设备年出货量将达到70亿台，2022-2026年期间年复合增长率将达9%，双模蓝牙设备将持续保持高位，低功耗蓝牙（BLE）技术也将成为新的市场标准，支持BLE的蓝牙设备出货量将实现3倍增长。
无线蓝牙对讲机作为蓝牙芯片应用领域中的音频流设备，凭借功能、音质、安全等各方面的优势，已广泛应用于公安、民航、运输、水利、铁路、制造、建筑、服务乃至个人消费等领域，极海无线蓝牙对讲机应用方案，采用“低功耗蓝牙主控+射频收发模块”架构，对传统对讲机进行优化升级，在保证超远程通讯功能的基础上，实现多设备无线连接、GPS定位共享、免按键操作等功能。
无线蓝牙对讲机应用方案
主控芯片采用基于高性能RISC-V内核的GW3323系列低功耗双模蓝牙5.2芯片，该系列芯片具有高主频、高灵敏度、多外设等特性，充分满足蓝牙对讲机多设备连接需求，对讲机可同时连接蓝牙耳机与手机，实现实时通信与数据分享的同步传输。
高性能芯片，系统核心保障
GW3323系列低功耗双模蓝牙5.2芯片主频可高达 160MHz，配备了1MB的内置闪存Flash、256KB大容量的SRAM及内置DSP指令集，可处理大量算法运算，满足用户的功能开发需求。
SPP+BLE双模通讯协议，高效传输性能
芯片支持A2DP\HFP\SPP等协议，SPP可以实时连接手机实现对讲机参数设定和定位数据分享，A2DP主要用于实现音频实时对讲功能。蓝牙5.2 TX模式下内置PA最大功率可以达到+9dBm，RX模式下2Mbit/s EDR接受灵敏度-94dBm，数据传输更稳定、距离更长。
高集成度，简化应用开发
支持AAC、mSBC高质量解码，并内部集成了ENC的降噪算法，非常适用于音频流设备应用场景，可有效提升对讲机的通话质量。内部集成包含Charger/Buck/LDO在内的电源管理单元，PMU 充电电流可达到0.2A，无需外接充电IC，可降低成本并提升产品可靠度。
无线网络通讯技术的技术发展，在不断地推动应用产品迭代升级，通过高性能芯片的赋能下，众多基于传统技术的产品在便利性、稳定性及多终端设备协同等的多元化改良下，亦有了不逊于基于新兴技术应用产品的表现，在各类场景中发挥了重要的作用。
极海GW3323系列低功耗双模蓝牙5.2芯片除了音频流设备以外，还可广泛地应用于数据传输、位置服务和设备网络等各大解决方案领域。
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本文由浩哥的小锤锤转载自Geehy极海半导体公众号，原文标题为:无线芯升级 | 极海GW3323无线蓝牙对讲机应用方案，本站所有转载文章系出于传递更多信息之目的，且明确注明来源，不希望被转载的媒体或个人可与我们联系，我们将立即进行删除处理。
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根据用户的蓝牙模块，使用Bluetooth 蓝牙测试装置MT8852B，测试蓝牙1.0至5.1，包括传输速率、功率、频率、调制和接收机灵敏度，生成测试报告。支持到场/视频直播测试，资深专家全程指导。
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