EUA2307-20W具有EQ、DRC功能的立体声数字D类音频放大器 DataSheet 

概述
EUA2307是一款20W，4通道半桥式驱动的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。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。
EUA2307提供短路保护和过热保护，以避免芯片的损毁。EUA2307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串行控制接口
‧音频处理
直流滤波器
独立音量控制，从24dB到静音
EQ
DRC
‧优点
EQ：大大提高了音频性能
DRC:提供了喇叭保护和夜间模式
缓慢静音
自动检测：自动检测输入音频数据的采用率
具有过温及短路保护机制
‧48-pin TQFP封装
‧符合RoHS规范及Pb-Free

应用
‧电视
‧ipod
‧音箱

EUA2307-20W Stereo Digital Audio Power Amplifier with EQ and DRC 

Description
The EUA2307 is a 20-W, digital audio power amplifier with 4 half-bridged power drivers. The EUA2307 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. A bidirectional I2C interface allows reading or writing to change the internal register status.
The EUA2307 also features short-circuit and thermal protection preventing the device from being damaged during a fault condition. The EUA2307 is available in thermally efficient 48-pin TQFP package.

Feature
‧Audio Input/Output
- Wide Power Supply Voltage: 8 V to 26 V
- Digital Supply: 3.3V
- 20W/ch an 8-Ω Load from an 18-V Supply
- Supports 8 kHz - 48 kHz Sample Rates Serial Audio Input (LJ/RJ/I2S)
- Bidirectional I2C interface
‧Audio Processing
- DC Blocking Filters
- Channel Volume Control 24 dB to mute
- 14 Biquads for Speaker EQ
- Flexible Dynamic Range Control (DRC)
‧Benefits
- EQ: Speaker Equalization Improves Audio
Performance
- DRC: Enables Speaker Protection and Night-Mode
Listening
- Soft Mute
- Auto detect: Automatically Detects Sample-rate
Changes
- Thermal and short circuit protection
‧Available in TQFP-48 (EP) Package
‧RoHS compliant and 100% lead(Pb)-free Halogen-Free

Application
‧Television
‧iPod¬TM Dock
‧Sound Bar