Datasheet > BD5446EFV

BD5446EFV

更新时间： 2024-11-26 06:41:55

品牌	Logo	应用领域
罗姆 - ROHM		放大器
页数	文件大小	规格书
31页	720K
描述
20W+20W Class-D Speaker Amplifier for Digital Input

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技术参数
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BD5446EFV 技术参数

是否Rohs认证：	符合	生命周期：	Not Recommended
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：	5.71	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	JESD-609代码：	e2
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）：	260
认证状态：	Not Qualified	座面最大高度：	1 mm
最大供电电压 (Vsup)：	26 V	最小供电电压 (Vsup)：	10 V
表面贴装：	YES	温度等级：	OTHER
端子面层：	Tin/Copper (Sn/Cu)	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
Base Number Matches：	1

BD5446EFV 数据手册

High Performance Class-D Speaker / Headphone Amplifier Series

20W+20W

Class-D Speaker Amplifier for Digital Input

No.10075EAT14

BD5446EFV

●Overview

BD5446EFV 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 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 87% (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) BD5446EFV has two system of digital audio interface.

(I²S/LJ format, SDATA: 16 / 20 / 24bit, LRCLK: 32kHz / 44.1kHz / 48kHz, BCLK: 64fs (fixed), SYS_CLK: 256fs (fixed))

2) Within the wide range of the power supply voltage, it is possible to operate in a single power supply. (10~26V)

3) It contributes to miniaturizing, making to the thin type, and the power saving of the system by high efficiency and low heat.

4) S/N of the system can be optimized by adjusting the gain setting among 8 steps. (20~34dB / 2dB step)

5) It has the output power limitation function that can be adjusted to an arbitrary output power.

6) 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.

7) It provides with the best stereo DAC output for the headphone usage. As a result, the output of the selection of the

digital input in two systems is possible.

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) BD5446EFV 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)

●Applications

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

www.rohm.com

2010.02 - Rev.A

1/30

12 3 4 5 6 7...31

中文翻译

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与BD5446EFV相关器件

型号	品牌	获取价格	描述	数据表
BD5446EFV_101	ROHM	获取价格	Class-D Speaker Amplifier for Digital Input
BD5446EFV_11	ROHM	获取价格	Class-D Speaker Amplifier for Digital Input
BD5446EFV-E2	ROHM	获取价格	Class-D Speaker Amplifier for Digital Input
BD544A	ISC	获取价格	isc Silicon PNP Power Transistors
BD544A	TRSYS	获取价格	PNP SILICON POWER TRANSISTORS
BD544A	POINN	获取价格	PNP SILICON POWER TRANSISTORS
BD544A	BOURNS	获取价格	PNP SILICON POWER TRANSISTORS
BD544A	NJSEMI	获取价格	Trans GP BJT PNP 60V 8A 3-Pin(3+Tab) TO-220
BD544A	FOSHAN	获取价格	TO-220
BD544B	BOURNS	获取价格	PNP SILICON POWER TRANSISTORS

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