TAS5713

具有EQ和DRC 25 W数字音频功率放大器 25-W DIGITAL AUDIO POWER AMPLIFIER WITH EQ AND DRC

The is a 25-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 TAS5713 is a slave-only device receiving all clocks from external sources. The TAS5713 operates with a PWM carrier between a 384-kHz switching rate and a 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..

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Audio Input/Output

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25-W Into an 8- Load From a 20-V Supply

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Wide PVDD Range, From 8 V to 26 V

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Supports BTL Configuration With 4- Load

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Efficient Class-D Operation Eliminates Need for Heatsinks

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One Serial Audio Input Two Audio Channels

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I2C Address Selection Pin Chip Select

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Single Output Filter PBTL Support

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Supports 8-kHz to 48-kHz Sample Rate LJ/RJ/I2S

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Audio/PWM Processing

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Independent Channel Volume Controls With Gain of 24 dB to Mute

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Programmable Two-Band Dynamic-Range Control

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22 Programmable Biquads for Speaker EQ and Other Audio-Processing Features

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Programmable Coefficients for DRC Filters

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DC Blocking Filters

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General Features

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I2C Serial Control Interface Operational Without MCLK

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Requires Only 3.3 V and PVDD

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No External Oscillator: Internal Oscillator for Automatic Rate Detection

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Surface-Mount, 48-Pin, 7-mm × 7-mm HTQFP Package

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Thermal and Short-Circuit Protection

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106-dB SNR, A-Weighted

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AD and BD PWM-Mode Support

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Up to 90% Efficient

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Benefits

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EQ: Speaker Equalization Improves Audio Performance

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DRC: Dynamic Range Compression. Can Be Used As Power Limiter.

Enables Speaker Protection, Easy Listening, Night-Mode Listening

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Autobank Switching: Preload Coefficients for Different Sample Rates.

No Need to Write New Coefficients to the Part When Sample Rate Changes

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Autodetect: Automatically Detects Sample-Rate Changes.

No Need for External Microprocessor Intervention