STA333ML中文资料声音终端2通道无微控制器高效数字音频系统数据手册ST规格书

描述 Description

The STA333ML is a single die embedding digital audio processing and high-efficiency power amplification, capable of operating without the aid of an external microcontroller.

The STA333ML is part of the Sound Terminal®family that provides full digital audio streaming to the speakers and offers cost effectiveness, low power dissipation and sound enrichment.

The STA333ML combines a unique 24-bit DDX®digital class-D ternary modulator together with an extremely low RdsONstereo power DMOS stage. The latter is capable of a total output power of 2 x 20 W with outstanding performance in terms of efficiency (>90%), THD, SNR and EMI.

The microless feature allows its use in low-cost applications (cradles, digital speakers, audio terminals) where no microcontroller is needed.

The serial audio data interface accepts the universally used I2S format. Basic features, such as the oversampling clock, gain, and I2S format, can be set using a minimal number of selection pins.

The STA333ML is self-protected against thermal overload, overcurrent, short-circuit and overvoltage conditions.

The fault condition is also signalled on an external pin (INT_LINE) for specific requirements.

特性 Features

• Wide supply voltage range (4.5 - 20 V)
• 2 x 20 W into 8 Ω at VCC= 18 V
• PowerSSO-36 exposed pad package
• 2 channels of 24-bit DDX®
• 100-dB SNR and dynamic range
• Selectable 32 kHz to 48 kHz input sample rates
• Automatic zero-detect mute
• Automatic invalid input detect mute
• 2-channel I2S input data interface
• Selectable clock input ratio (256 or 364 * fs)
• Max power correction for lower full power
• 96 kHz internal processing sample rate, 24-bit precision
• Embedded thermal overload and short-circuit protection
• Filterless configuration option
• 应用
•LCDs
•DVDs
•Cradles
•Digital speakers
•Wireless speaker cradles

简介

STA333ML属于集成电路（IC）的音频专用。由制造生产的STA333ML音频专用音频专用的半导体器件专为音频信号的滤波、驱动、放大、转换和接口而设计。特征包括功能、应用、通道数、接口、电压和规格。应用包括音频系统、汽车音频、消费类音频、乐器、专业音频、通信系统、电信系统、数字音频、驱动器、前置放大器、信号混合、信号处理、语音触发器解决方案和 10 Base-T。