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