TDA7498设计的100W+100W D类音频放大技术

09-08| http://www.dianzi6.com | 维修教程知识 - 单片机学习|人气:588

TDA7498设计的100W+100W D类音频放大技术
TDA7498是100W+100W双BTL D类音频放大器,主要用在家庭影院和有源扬声器. TDA7498单电源10-39V工作,效率高达90%,增益设定为25.6 dB, 31.6 dB, 35.1 dB和37.6 dB, 在THD = 10%, RL = 6欧姆和VCC = 36 V时的输出功率为100W+100W.本文介绍了TDA7498主要特性, 内部方框图, 特性测量电路图, 6和8欧姆扬声器应用电路图以及待机和静音电路图, 6和8欧姆扬声器LC滤波器电路图.

TDA7498:100 W + 100 W dual BTL class-D audio amplifier.

The TDA7498 is a dual BTL class-D audio amplifier with single power supply designed for home systems and active speaker applications. It comes in a 36-pin PowerSSO package with exposed pad up (EPU) to facilitate mounting a separate heatsink.

TDA7498主要特性:

100 W + 100 W output power at THD = 10% with RL = 6ohm and VCC = 36 V

Wide range single supply operation (10 - 39 V)

High efficiency (= 90%)

Four selectable, fixed gain settings of nominally 25.6 dB, 31.6 dB, 35.1 dB and 37.6 dB

Differential inputs minimize common-mode noise

Standby and mute features

Short-circuit protection

Thermal overload protection

Externally synchronizable


图1.TDA7498内部方框图(仅显示一路)

图2.TDA7498特性测量电路图

图3.TDA7498 6欧姆扬声器应用电路图

www.dianzi6.com
图4.TDA7498 8欧姆扬声器应用电路图

图5.TDA7498 待机和静音电路图

图6.TDA7498 8欧姆扬声器LC滤波器电路图

图7.TDA7498 6欧姆扬声器LC滤波器电路图

图8.TDA7498 主从连接框图

如果觉得 TDA7498设计的100W+100W D类音频放大技术这篇文章不错,可以推荐给朋友分享哦。
本文Tags:单片机开发,单片机原理,维修教程知识 - 单片机学习,
相关单片机学习资料


温馨提示; 本站的资料全部免费下载,为方便下次找到本站记得将本站加入收藏夹哦,牢记网址http://www.dianzi6.com

此页提供TDA7498设计的100W+100W D类音频放大技术单片机开发,单片机原理, 维修教程知识 - 单片机学习参考。本站还有更多的单片机学习相关资料分享。
Copyright© www.dianzi6.com Inc. All rights reserved 。 1 2 3 4 5 6 7 8