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BD5451EFV_1106 PDF预览

BD5451EFV_1106

更新时间: 2024-11-03 08:51:39
品牌 Logo 应用领域
罗姆 - ROHM 放大器
页数 文件大小 规格书
35页 680K
描述
Class-D Speaker Amplifier for Digital Input

BD5451EFV_1106 数据手册

 浏览型号BD5451EFV_1106的Datasheet PDF文件第2页浏览型号BD5451EFV_1106的Datasheet PDF文件第3页浏览型号BD5451EFV_1106的Datasheet PDF文件第4页浏览型号BD5451EFV_1106的Datasheet PDF文件第5页浏览型号BD5451EFV_1106的Datasheet PDF文件第6页浏览型号BD5451EFV_1106的Datasheet PDF文件第7页 
Middle Power Class-D Speaker Amplifiers  
Class-D Speaker Amplifier  
for Digital Input  
BD5451EFV  
No.11075EAT17  
Description  
BD5451EFV is a Class D Speaker Amplifier designed for Flat-panel TVs in particular for space-saving and low-power  
consumption, delivers an output power of 15W+15W. This IC employs state-of-the-art Bipolar, CMOS, and DMOS (BCD)  
process technology that eliminates turn-on resistance in the output power stage and internal loss due to line resistances up  
to an ultimate level. With this technology, the IC can achieve high efficiency of 90% (15W+15W output with 8load). In  
addition, the IC is packaged in a compact reverse heat radiation type power package to achieve low power consumption  
and low heat generation and eliminates necessity of external heat-sink up toa total output power of 30W. This product  
satisfies both needs for drastic downsizing, low-profile structures and many function, high quality playback of sound system.  
Features  
1) This IC has one system of digital audio interface.  
(I2S format, SDATA: 16 / 20 / 24bit, LRCLK: 32kHz / 44.1kHz / 48kHz, BCLK: 64fs(fixed), MCLK: 256fs(fixed))  
2) Low supply current at RESET mode.  
3) The decrease in sound quality because of the change of the power supply voltage is prevented with the feedback  
circuitry of the output. In addition, a low noise and low distortion are achieved.  
Eliminate large electrolytic-capacitors for high performance of Power Supply Rejection.  
4) S/N of the system can be optimized by adjusting the gain setting among 2 steps. (20dB / 26dB)  
5) Available for Monaural mode.  
6) Within the wide range of the power supply voltage, it is possible to operate in a single power supply. (1018V)  
7) It contributes to miniaturizing, making to the thin type, and the power saving of the system by high efficiency and  
low heat.  
8) Eliminates pop noise generated when the power supply goes on/off, or when the power supply is suddenly shut off.  
High quality muting performance is realized by using the soft-muting technology.  
9) This IC is a highly reliable design to which it has various protection functions.  
(High temperature protection, under voltage protection, Output short protection, Output DC voltage protection  
and Clock stop protection, (MCLK, BCLK, LRCLK))  
10) Small package (HTSSOP-B28 package) contributes to reduction of PCB area.  
Applications  
Flat Panel TVs (LCD, Plasma), Home Audio, Desktop PC, Amusement equipments, Electronic Music equipments, etc.  
www.rohm.com  
© 2011 ROHM Co., Ltd. All rights reserved.  
2011.06 - Rev.A  
1/34  

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