EUA2306-20W立体声数字D类音频放大器 DataSheet 

概述
EUA2306是一款20W，高效数字音频功率放大器。经由外部时钟信号驱动。I²S串行数据输入接口允许同时处理两个分离声道，并且可以无缝整合到大多数的数字音频处理器和MPEG译码器上。器件可以接收一个很宽范围的输入数据和数据速率。内置双向I2C接口可以接受主机的各种指令改变内部寄存器状态。
EUA2306提供短路保护和过热保护，以避免芯片的损毁。EUA2306采用48-pin TQFP封装。

特点
•音频输入输出
工作电压：8V到26V，3.3V数字电源
负载8Ω，工作电压18V，单一通道输出功率可达20W
I²S串行音频输入，支持8KHz到48KHz的采样频率（LJ/RJ/I²S）
双向I²C串列控制介面
•音频处理
直流滤波器
独立音量控制，从24dB到静音
•优点
缓慢静音
自动检测。自动检测输入音频数据的采用率，不需外部中断发送指令
具有过温及短路保护机制

应用
•电视
•ipod
•音箱

EUA2306-20W Stereo Digital Audio Power Amplifier 

Description
The EUA2306 is a 20-W, efficient, digital audio power amplifier with 4 half-bridged power drivers. The EUA2306 is a slave device that all clocks are provided by the external sources. One serial data input allows processing of up to two discrete audio channels and seamless integration to most digital audio processors. The speaker protection circuitry is integrated EUA2306 to limit the amount of current through the speaker.
The EUA2306 also features short-circuit and thermal protection preventing the device from being damaged during a fault condition. The EUA2306 is available in thermally efficient 48-pin TQFP package.

Feature
•Audio Input/Output
- Wide PVDD Range (8 V to 26 V); 3.3 V Digital Supply
- 20W/ch an 8-Ω Load from an 18-V Supply
- Supports 8 kHz - 48 kHz Sample Rates Serial Audio Input (LJ/RJ/I2S)
•Audio processing
- DC Blocking Filters
- Channel Volume Control 24 dB to mute
- Soft mute
•Benefits
-Soft Mute
- Autodetect: Automatically Detects Sample-rate Changes Eliminating the Need for
External Microprocessor Intervention
- Thermal and short –circuit protection
•Available in TQFO-48 (EP) Package
•RoHS compliant and 100% lead(Pb)-free
Halogen-Free

Application
•Television
•iPod¬TM Dock
•Sound Bar