课件规格简介-v1

1、版本号：1.212017-7-181 目录12目引2.1录1言2编写目的22.22.3文档范围2术语和缩写词2345方案规格介绍2版本历史5. 6版本：1.21第 1 页2 引言2.1 编写目的本文档为方案的介绍性文档，方便客户了解方案的概况。2.2 文档范围本文档会列出采用的主要硬件环境和主要的功能模块以及方案主要特性。2.3 术语和缩写词3 方案规格介绍1.方案名：US281A2.主：ATS2815 （QFN40）3.显示支持：不支持数码管；支持分立 LED 灯，支持 1 路呼吸灯功能4.按键支持：7 键(Play, MODE, NEXT, PREV, VOL+, VOl-, TUNE)5

2、.音频接口：AUX In 输入、FM 输入、MIC In；AOUTL/AOUTR6.外设接口：SD/MMC Card、UART TX/RX、TWI、USB Device、USB Host7.充电接口：不支持充电功能，需外带充电 IC8.固件：SPI Nor flash器,程序可升级，支持最大 4Mbytes SPI Nor flash作为程序版本：1.21第 2 页缩写和术语解 释9.数据：支持 SPI Nor flash 作为数据，支持最大 16Mbytes SPI Nor flash10.声蓝牙音箱，即等设备可通过蓝牙发送音乐到音箱（A2DP 1.3），支持支持SBC；支持TWS 蓝牙推歌

3、11.支持音箱端通过蓝牙控制等设备切换上下曲，调节音量，接/挂（AVRCP 1.6）12.支持蓝牙免提（HFP 1.7），具有回声消除和噪声处理等功能；支持通话音量同步；支持语音、语音、SIRI 等语音助手；话号码播报13.支持蓝牙电池电量上报给，是否支持取决于，是支持的14.支持蓝牙人机接口设备协议（HID 1.0，未过 BQB 认证）；支持拍照应用场景；支持独立 HID 蓝牙应用，拥有独立的设备名字和设备地址15.支持蓝牙：插卡播歌/插 U 播歌/内置磁盘播歌/AUX/FM/这 6 个应用支持蓝牙16.SD/MMC Card 上的音乐， 音乐格式有： MP3,WAV,FLAC ； 支持支持

4、SD/MMC/SDHC17.U 盘上的音乐，音乐格式有：MP3,WAV,FLAC；支持协议版本为 USB OTG支持1.118.支持内置磁盘（SPI Nor Flash）上的歌曲，音乐格式有：MP3,WAV,FLAC；支持最大 16Mbytes 容量的SPI Nor flash19.支持 FAT16 、FAT32 、ExFAT/Fat64 文件系统；支持 8 级子目录；支持单目录下音乐文件总数最多 999920.支持 AUX 输入，但是由于 IC只有一路 ADC，方案的解决方案是这样的：a)如果需要支持淡入淡出、PEQ 调节、能量检测、音量调节等数字功能，则需要使用 ICADC，这样会在 AD

5、C 前端进行左右声道混合，所以做不到真正的声，双喇叭方案无法完美支持b)如果一定要真正的声，那么只能使用 AIN-PA 直通的方案，但是这种方式无法支持淡入淡出、PEQ 调节、能量检测、音量调节等数字功能21.支持 FM 收音机，支持自动搜台和半自动搜台，支持最多 40 个的预存电台列表22.支持功能；支持 USB1.1版本：1.21第 3 页23.支持USB 音箱；支持 USB 1.1；支持 USB HID 切换上下曲/暂停/调音量24.支持音箱状态播报，可各种音箱状态并可根据用户需求修改播报语言；25.支持按键音提示，按键音是，可选频率和周期数26.支持固件加密27.支持 USB 连接到电

6、脑进行固件升级/量产28.支持 32 级音量调节29.支持播歌后处理，包括 PEQ（14 段）、限幅器、声道交换或合并、淡入淡出等；支持最多 10 频点的能量频谱30.蓝牙通话支持PEQ 和淡入淡出等31.支持总/平均能量获取，支持低能量检测，包括蓝牙推歌、PCM播歌（AUX/FM/USBAudio）、本地播歌版本：1.21第 4 页4 版本历史版本：1.21第 5 页日期版本号注释作者2016-10-211.0建立初始版本2016-12-51.01更正和补充 AUX 规格说明2017-2-101.10补充插 U 播歌、FM、USB Audio 等功能2017-7-181.21补充 TWS、红

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