BM28723MUV数据手册ROHM中文资料规格书

描述 Description

BM28723MUV是针对电视等的省空间、节能用途而开发的、搭载17W+17W DSP(数字声音处理器)的立体声D类扬声器放大器。采用最先进的BCD（Bipolar, CMOS, DMOS）工艺技术，以及小型背面散热型的功率封装，具备低功耗、低发热量，无需散热片即可实现RL=8Ω时最大17W+17W的输出（另行采取散热片等散热措施时最大20W+20W）｡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

·Built-in DSP (Digital Sound Processor) for Audio Signal Processing
for TVs 12-Band/ch BQ, 3-Band DRC, Pre-Scaler, Channel Mixer,
Fine Master Volume, Hard Clipper, Level Meter, etc.
·Single Input System for Digital Audio Interface
(No Master Clock Required)·I2S / LJ / RJ Format
·LRCLK: 32 / 44.1 / 48kHz
·BCLK: 32 / 48 / 64fS
·SDATA: 16 / 20 / 24 bit

·Single Output System for Digital Audio Interface·I2S Format
·SDATA: 16 / 20 / 24 bit

·No Snubber Circuit Required (VCCP1, VCCP2≤22V)
because of Slew Rate Control
·Output Feedback Circuit which prevents decrease of sound quality caused by change of power supply voltage, achieves low noise and low distortion, So no large electrolytic-capacitors for Vcc bypass is required.
·Wide Range of Power Supply Input Voltage
·The monaural output reduces the number of external parts needed.
·High Efficiency and Low Heat Dissipation allowing Miniaturization, Slim Design, and also Power Saving of the System
·Eliminates pop-noise generated during the power supply ON/OFF. High quality muting performance is achieved using the soft-muting technology.
·Built-in with Various Protection Functions for Highly Reliability Design·High Temperature Protection
·Under Voltage Protection
·Output Short Protection
·DC Voltage Protection for speaker
·Clock Stop Protection

·Small Package, It reduces surface mount area