ti公司的tas5825m是4.5v-26v 38w立体声数字输入d类音频放大器,集成了高达192khz架构的音频处理器,功能强大的音频dsp核支持几种先进音频处理流,采用48khz或96khz架构,集成的取样速率转换器(src)检测输入取样速率变化,支持32, 44.1, 48, 88.2, 96, 192 khz取样速率,3线数字音频接口,功率效率大于90%,在pvdd=12v是静态电流小于20a,支持多种输出配置,主要用于dtv, hdtv, uhd和多种用处监视器,条形音箱和超低音音箱,笔记本/pc扬声器,无线/蓝牙扬声器以及智能扬声器。本文介绍了tas5825m主要特性,功能框图,应用电路以及评估模块tas5825mevm主要特性,电路图,材料清单和pcb设计图。
the tas5825m is a stereo high-performance closedloopclass-d with integrated audio processor with upto 192-khz architecture.
the powerful audio dsp core supports severaladvanced audio process flows. with 48-khz or 96-khz architecture, an integrated src (sample rateconvertor) detects the input sample rate change.
then auto converts to the target sample rate whichdsp is running to avoid any audio artifacts. theseprocess flows support: 2×15 bqs, 3-band drc,fullbandagl (automatic gain limiter), smart amplifieralgorithm (thermal and excursion protection), bassenhancement, spatializer,thd manager, pvddtracking and thermal foldback. the 192-khzprocess flow offers full-band agl and thermalfoldback 。
tas5825m主要特性:
1• flexible audio i/o:
– supports 32, 44.1, 48, 88.2, 96, 192 khzsample rates
– i2s, lj, rj, tdm, sdout for audiomonitoring, sub-channel or echo cancellation
– supports 3-wire digital audio interface (nomclk required)
• high-efficiency class-d operation
– 》 90% power efficiency, 90 mωrdson
– low quiescent current, 《20 ma at pvdd=12v
• supports multiple output configurations
– 1 × 53 w, 1.0 mode (4-ω, 22v, thd+n=1%)
– 1 × 65 w, 1.0 mode (4-ω, 22v, thd+n=10%)
– 2 × 30 w, 2.0 mode (8-ω, 24 v, thd+n=1%)
– 2 × 38 w, 2.0 mode (8-ω, 24 v, thd+n=10%)
• excellent audio performance:
– thd+n ≤ 0.03% at 1 w, 1 khz, pvdd = 12 v
– snr ≥ 110 db (a-weighted), icn ≤ 35 μvrms
• flexible processing features
– 3-band advanced drc + agl,2 × 15 bqs,
– sound field spatializer (sfs), level meter
– 96-khz, 192-khz processor sampling
– dynamic eq, smart amplifier algorithm forbass enhancement and speakerthermal/excursion protection
• flexible power supply configurations
– pvdd: 4.5 v to 26.4 v
– dvdd and i/o: 1.8 v or 3.3 v
• excellent integrated self-protection:
– over-current error (oce)
– cycle-by-cycle current limit
– over-temperature warning (otw)
– over-temperature error (ote)
– under/over-voltage lock-out (uvlo/ovlo)
• easy system integration
– i2c software control
– reduced solution size
– small 5 x 5 mm package
– fewer passives required compared toopen-loop devices
– no bulky electrolytic capacitors or largeinductors required for most applications
tas5825m应用:
• dtv, hdtv,uhd and multi-purpose monitors
• soundbars and subwoofers, notebooks/pc speakers
• wireless/bluetooth speakers
• smart speakers (with voice assistant)
图1.tas5825m功能框图
图2.tas5825m 2.0(stereo btl)系统应用电路图
图3.tas5825m超低音(pbtl)应用电路图
图4.tas5825m 2.1(2.1ch两个tas5825m)应用电路图
tas5825m评估模块tas5825mevm
this user’s guide describes the operation of the tas5825m evaluation module (evm)。 the evm isconnected to the purepath™ console motherboard (ppcmb)。
the main contents of this document are:
• hardware descriptions and implementation required equipment and accessories:
• tas5825mevm
• purepath console motherboard
• a usb micro type-b cable
• power supply unit (psu)
• speakers and cables
• desktop or laptop running microsoft® windows® 7, windows 8, or windows 8.1
• audio source: this can be a dvd player with appropriate spdif cable or playback media from windows 7, windows 8 or windows 8.1.
the tas5825mevm showcases the latest ti digital input class-d closed-loop amplifier. the tas5825m isa digital input class-d audio amplifier with 96-khz, and 192-khz extended processing. the evm is used inconjunction with the purepath console motherboard (ppcmb)。 the pvdd supply is provided via thetas5825mevm and is regulated to 5 vdc and 3.3 vdc on the ppcmb. the ppcmb providesthe i2s, i2c, and 3.3 vdc to the tas5825mevm.
日本将限制外国对日本科技和电信公司的投资
感受秋日美好,用徕卡三镜头记录最美风景
大朋VR一体机P1PRO体验 外观设计方面并没有太大变化但性能方面得到了明显提升
国芯思辰|中科阿尔法霍尔电流传感器AH950(替代ACS758)用于大功率电源输出电流采样
浅谈OPPOColorOS6
TAS5825M立体声数字输入D类音频放大器
美的业务发展均衡却缺乏占据优势的业务,洗衣机市场将形成两强之争
数据中心网络设备扩容的三种实现方案
元宇宙研究院作为发起机构参与并出席中国元宇宙产业中心发起筹备会议
8V~150V转12V10A,转5V3.1A降压芯片
中国光伏发电企业排名
用于RISC-V SoC的TileLink互连验证IP
京东方:AMOLED 出货大增,预计 2020 年盈利同比增长 150%-166%
一种LED照明驱动电路应用设计
汽车车灯焊接工艺,塑料激光焊接鳌头独占
FPGA 如何支持智能搜索? 英特尔FPGA 加速人工智能发展
锤子坚果Pro最新消息:坚果Pro价格曝光,1699起售就这样被猪队友出卖了
开关磁阻电机的优缺点
Molex推出工业与网路应用光学快速转换电缆组件
符合现代审美的智能跑步机设计