Texas Instruments TLV320AIC3268 超低功耗立体声音频解码器

德州仪器 TLV320AIC3268 超低功耗立体声音频解码器将以多个数字和模拟音频流作为源的音频系统与多个输出设备——例如高功率音频放大器——进行集成。集成的 miniDSP 实现音频流信号处理的定制,让用户能设计出差异化的产品。该器件的低功耗对于电池供电或工作于功耗受限环境的系统而言是非常理想的特性。AIC3268 是一款集成、低功耗、低电压立体声音频解码器,还带有四个数字麦克风输入,以及可编程输出、预定义和可参数化的信号处理模块和一个集成的 PLL。包括时钟和引脚复用在内的大范围基于寄存器的功率、输入/输出通道配置、增益、效应控制使得此器件能够精准的针对其目标应用。

特性

  • 105dB SNR for Stereo Audio DAC to Differential Lineout
  • 95dB SNR for Stereo Line Input to Audio ADC
  • 8-192kHz Playback and Record
  • 24mW output power from DirectPath™ Headphone Driver
  • 121mW output power from Differential Receiver Output Driver
  • Class-D Speaker Driver with
    • 1.45W (8Ω, 5V, 10% THDN)
    • 1.15W (8Ω, 5V, 1% THDN)
  • Differential or Single-Ended Stereo Line Outputs
  • Eight Single-Ended or 4 Fully-Differential Analog Inputs
  • Analog Microphone Inputs, and Up to 4 Simultaneous Digital Microphone Channels
  • Extensive Signal Processing Options
  • Fully-programmable Enhanced miniDSP
  • Three Independent Digital Audio Serial Interfaces with Separate I/O Power Voltages
    • TDM and mono PCM support on all Audio Serial Interfaces (ASI)
    • 8-channel Input and Output on ASI 1
  • Programmable PLL, plus Low-Frequency Clocking
  • Programmable 12-Bit SAR ADC
  • SPI and I2C Control Interfaces

应用

  • Low power portable audio devices
  • Consumer audio devices
  • Infotainment systems
发布日期: 2014-06-17 | 更新日期: 2024-01-18