BD5452AMUV数据手册ROHM中文资料规格书

描述 Description

BD5452AMUV是针对超薄电视等省空间、节能用途而开发的，支持15W+15W数字输入的立体声D类扬声器放大器。采用最先进的BCD（Bipolar, CMOS and DMOS）工艺技术，以及小型背面散热型功率封装，具备低功耗、低发热量，无需散热片即可实现总体最大30W输出。是同时满足音响类系统大幅小型化、薄型化以及强感染力、高音质播放两方面需求的产品。

特性 Features

・ 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 / 512fs)
・ Low supply current at RESET mode.
・ 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.
・ Power Limit Function. (at RL =8 , 10W /5W /OFF)
・ Available for Monaural mode.
・ Within the wide range of the power supply voltage, it is possible to operate in a single power supply. (10 to 18V)
・ It contributes to miniaturizing, making to the thin type, and the power saving of the system by high efficiency and low heat.
・ 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.
・ 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)
・ Small package (VQFN032V5050 package) contributes to reduction of PCB area.

应用 Application

·Portable Data Terminal
·Meter for Medical Treatments Portable
·Monitor for Medical
·血压计
·超声波诊断设备
·数据管理设备（远程保健用）
·Single Board Computer
·家庭影院
·超声波诊断设备（便携式）
·内置电脑
·CPAP
·TV