TAS5711数据手册开发板套件编程器的评估板-音频放大器规格书PDF

描述 Description

The TAS5711 is a 20-W, efficient, digital audio power amplifier for driving stereo bridge-tied speakers. One serial data input allows processing of up to two discrete audio channels and seamless integration to most digital audio processors and MPEG decoders. The device accepts a wide range of input data and data rates. A fully programmable data path routes these channels to the internal speaker drivers. The TAS5711 is an I2S slave-only device receiving all clocks from external sources. The TAS5711 operates with a PWM carrier between 384-kHz switching rate and 352-KHz switching rate depending on the input sample rate. Oversampling combined with a fourth-order noise shaper provides a flat noise floor and excellent dynamic range from 20 Hz to 20  kHz.

特性 Features

• Audio Input/Output
• 20-W Into an 8- Load From an 18-V Supply
• Wide PVDD Range, From 8 V to 26 V
• Efficient Class-D Operation Eliminates Need for Heatsinks
• One Serial Audio Input (Two Audio Channels)
• 2.1 Mode (2 SE + 1 BTL)
• 2.0 Mode (2 BTL)
• Single-Filter PBTL Mode Support
• I2C Address Selection Pin (Chip Select)
• Supports 8-kHz to 48-kHz Sample Rate (LJ/RJ/I2S)

• Audio/PWM Processing
• Independent Channel Volume Controls With 24-dB to Mute
• Separate Dynamic Range Control for Satellite and Subchannels
• 21 Programmable Biquads for Speaker EQ and Other Audio Processing Features
• Programmable Coefficients for DRC Filters
• DC Blocking Filters
• Support for 3D Effects

• General Features
• Serial Control Interface Operational Without MCLK
• Factory-Trimmed Internal Oscillator for Automatic Rate Detection
• Surface Mount, 48-Pin, 7-mm × 7-mm HTQFP Package
• Thermal and Short-Circuit Protection
• Support for AD or BD Mode

• Benefits
• Up to 90% Efficient
• AD and BD Filter Mode Support
• SNR: 106 dB, A-Weighted
• EQ: Speaker Equalization Improves Audio Performance
• DRC: Dynamic Range Compression. Can Be Used As Power Limiter. Enables Speaker Protection, Easy Listening, Night-Mode Listening.
• Separate DRC for Satellite and Subchannels
• Autobank Switching: Preload Coefficients for Different Sample Rates. No Need to Write new Coefficients to the Part When Sample Rate Changes.
• Autodetect: Automatically Detects Sample-Rate Changes. No Need for External Microprocessor Intervention

• Requires Only 3.3 V and PVDD
• APPLICATIONS
• Television
• iPod™ Dock
• Sound Bar

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