1
完善资料让更多小伙伴认识你,还能领取20积分哦, 立即完善>
IR公司的IR4301和R4311集成了PWM控制器和数字音频MOSFET,组成了高性能D类音频放大器,具有高峰值音乐功率输出,不需要机械的散热器,单电源或双电源工作,差分或单端输入,过流,超温和欠压保护,并具复位功能,IR4301能向4欧姆输出160W功率,IR4311能向4欧姆输出35W功率,主要用在家庭影院系统,坞站音频系统,电子音乐,卡拉OK放大器,游戏控制台,扬声器系统和通用音频功率放大器。本文介绍了IR4301和IR4311主要特性,方框图,多种连接电路和应用电路,以及采用IR4301的130W/4Ω x 2路D类音频功率放大器IRAUDAMP12参考设计主要特性,电路图,材料清单和PCB布局图。
The IR4301, IR4311 integrates PWM controller and digital audio MOSFETs forming a high performance Class D audio amplifier. As a result of fully optimized MOSFETs co-packed with a dedicated controller IC, the IR4301, IR4311 operates without mechanical heatsink attached in a typical music playback usage. High voltage ratings and noise immunity in the controller IC ensures reliable operation over various environmental conditions. A small 5x6 mm MLPQ package enhances the benefit of smaller size of Class D topology. The IR4301, IR4311 are a lead-free, ROHS compliant. IR4301和IR4311主要特性: Integrated analog input Class D audio amplifier in a small 5 x 6 mm PQFN package High peak music power output No mechanical heatsink required Split or single power supply Differential or single-ended input Over-current, over-temperature and under voltage protections with self-reset function Start and stop click noise reduction High noise immunity RoHS compliant IR4301和IR4311产品特性: 20120529105039718.gif IR4301和R4311典型应用: Home theatre systems Docking station audio systems PC audio systems Musical instruments Karaoke amplifiers Game consoles Powered speaker systems General purpose audio power amplifier 20120529105039728.gif 图1.IR4301和IR4311方框图 20120529105039883.gif 图2.IR4301和IR4311反相放大器连接图 20120529105039618.gif 图3.IR4301和IR4311差分放大器连接图 20120529105039727.gif 图4.IR4301和IR4311单电源连接图 采用IR4301的130W/4Ω x 2路D类音频功率放大器IRAUDAMP12参考设计 The IRAUDAMP12 reference design is a two-channel, 130W/ch (4Ω/±31V; no heatsink)/ 160W/ch (4Ω/±34V; *with heatsink) half-bridge Class D audio power amplifier. This reference design demonstrates how to use the IR4301 IC, implement protection circuits, and design an optimum PCB layout using PowIRaudio integrated Class D IC. This reference design does not require heatsink or fan cooling for normal operation (one-eighth of continuous rated power).The reference design provides all the required housekeeping power supplies for ease of use. The two-channel design is scalable for power and the number of channels. 20120529105040115.gif 图5.130W 2路D类音频功率放大器IRAUDAMP12外形图 D类音频功率放大器IRAUDAMP12主要特性: 2012052910504036.gif D类音频功率放大器IRAUDAMP12应用: AV receivers Home theater systems Mini component stereos Powered speakers Sub-woofers Musical Instrument amplifiers Car audio amplifiers 2012052910504020.gif 图6. D类音频功率放大器子板电路图 20120529105040230.gif 图7. D类音频功率放大器主板电路图 20120529105040181.gif 图8. D类音频功率放大器主板时钟和管理电路图 IRAUDAMP12 子板材料清单: 20120529105042554.gif IRAUDAMP12 主板材料清单: 20120529105042129.gif 201205291050426.gif 20120529105043625.gif 20120529105043899.gif 图9.IRAUDAMP12子板PCB布局图:顶层 20120529105043385.gif 图10.IRAUDAMP12子板PCB布局图:底层 20120529105043593.gif 图11.IRAUDAMP12主板PCB布局图:顶层 20120529105047694.gif 图12.IRAUDAMP12主板PCB布局图:底层 详情请见: ir4301.pdf(455.97 KB)2012-5-29 19:00 上传 -1 和 iraudamp12.pdf(611.24 KB)2012-5-29 19:01 上传 -1 |
|
|
|
只有小组成员才能发言,加入小组>>
793 浏览 0 评论
1152 浏览 1 评论
2528 浏览 5 评论
2861 浏览 9 评论
移植了freeRTOS到STMf103之后显示没有定义的原因?
2711 浏览 6 评论
keil5中manage run-time environment怎么是灰色,不可以操作吗?
1073浏览 3评论
195浏览 2评论
457浏览 2评论
370浏览 2评论
M0518 PWM的电压输出只有2V左右,没有3.3V是怎么回事?
455浏览 1评论
小黑屋| 手机版| Archiver| 德赢Vwin官网 ( 湘ICP备2023018690号 )
GMT+8, 2024-12-23 05:57 , Processed in 0.916727 second(s), Total 77, Slave 58 queries .
Powered by 德赢Vwin官网 网
© 2015 bbs.elecfans.com
关注我们的微信
下载发烧友APP
德赢Vwin官网 观察
版权所有 © 湖南华秋数字科技有限公司
德赢Vwin官网 (电路图) 湘公网安备 43011202000918 号 电信与信息服务业务经营许可证:合字B2-20210191 工商网监 湘ICP备2023018690号