TAS5711PHPR

20 W立体声I2S数字音频功率放大器

DESCRIPON

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.

FEATURES

• Audio Input/Output

   – 20-W Into an 8-Ω 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