Datasheet > BM5446EFV-E2

BM5446EFV-E2

更新时间： 2024-11-18 06:44:03

品牌	Logo	应用领域
罗姆 - ROHM		放大器
页数	文件大小	规格书
33页	865K
描述
Class-D Speaker Amplifier for Digital Input with Built-in DSP

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技术参数
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BM5446EFV-E2 技术参数

是否无铅：	不含铅	是否Rohs认证：	符合
生命周期：	Obsolete	零件包装代码：	TSSOP
包装说明：	ROHS COMPLIANT, HTSSOP-54	针数：	54
Reach Compliance Code：	compliant	ECCN代码：	EAR99
HTS代码：	8542.33.00.01	风险等级：	8.01
标称带宽：	20 kHz	商用集成电路类型：	AUDIO AMPLIFIER
谐波失真：	0.07%	JESD-30 代码：	R-PDSO-G54
长度：	18.5 mm	信道数量：	2
功能数量：	1	端子数量：	54
最高工作温度：	85 °C	最低工作温度：	-25 °C
标称输出功率：	20 W	封装主体材料：	PLASTIC/EPOXY
封装代码：	HVSSOP	封装等效代码：	TSSOP54,.37
封装形状：	RECTANGULAR	封装形式：	SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE, SHRINK PITCH
峰值回流温度（摄氏度）：	NOT SPECIFIED	电源：	13 V
认证状态：	Not Qualified	座面最大高度：	1 mm
子类别：	Other Consumer ICs	最大供电电压 (Vsup)：	26 V
最小供电电压 (Vsup)：	10 V	表面贴装：	YES
技术：	CMOS	温度等级：	OTHER
端子形式：	GULL WING	端子节距：	0.65 mm
端子位置：	DUAL	处于峰值回流温度下的最长时间：	NOT SPECIFIED
宽度：	7.5 mm

BM5446EFV-E2 数据手册

Middle Power Class-D Speaker Amplifiers

Class-D Speaker Amplifier

for Digital Input with Built-in DSP

BM5446EFV

No.10075EBT13

●Description

BM5446EFV is a Class D Speaker Amplifier with built-in DSP (Digital Sound Processor) designed for Flat-panel TVs in

particular for space-saving and low-power consumption, delivers an output power of 20W+20W. 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 86% (10W+10W output with 8Ω load). 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 to a total output power of 40W. This product satisfies both needs for drastic downsizing, low-profile structures and many

function, high quality playback of sound system.

●Features

1) This IC includes the DSP (digital sound processor) for Audio signal processing for Flat TVs.

2) This IC has two input systems of digital audio interface.

(I²S/LJ/RJ format, LRCLK: 32 kHz/ 44.1kHz / 48kHz, SYS_CLK: 256fs / 512fs,

BCLK: 48fs / 64fs, SDATA: 16 / 20 / 24bit)

3) With wide range of power supply voltage, it is possible to operate with single power supply. (Vcc = 10~26V)

4) With high efficiency and low heat dissipation contributing to miniaturization, slim design, and also power saving of the

system.

5) S/N of the system can be optimized by adjusting the gain selection in 16 steps. (20~35dB,1dB/step)

6) With built-in feedback circuitry at the output, prevents the decrease in sound quality due to change in power supply

voltage. In addition, low noise and low distortion are achieved.

7) With a built-in DAC provides best stereo-output for headphone function. As a result, the selection of output of the

digital input in two systems is possible.

8) It has additional S/PDIF output for the LINE output usage.

9) Eliminates pop-noise generated during the power supply on/off. High quality muting performance is realized by using

the soft-muting technology.

10) This IC is built-in with various protection functions for highly reliability design.

(High temperature protection, Under voltage protection, Output short protection, Output DC-Voltage protection and

Clock stop protection).

●Applications

Flat Panel TVs (LCD, Plasma), Home Audio, Desktop PC, Amusement equipments, Electronic Music equipments, etc.

www.rohm.com

2010.05 - Rev.B

1/32

12 3 4 5 6 7...33

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与BM5446EFV-E2相关器件

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BM55R0.5-2DS/2-0.3V(51)	HRS	获取价格	连接器类型:插座;开口间距:0.3 mm;安装间距:0.3 mm;嵌合高度(Min.):0
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BM56G-10DP-0.35V(53)	HRS	获取价格	连接器类型:插头;开口间距:0.35 mm;安装间距:0.35 mm;嵌合高度(Min.)
BM56G-10DS-0.35V(51)	HRS	获取价格	连接器类型:插座;开口间距:0.35 mm;安装间距:0.35 mm;嵌合高度(Min.)

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