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TAS5708

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具有 EQ 和 DRC 的 20W 立体声、10V 至 26V 电源电压、数字输入、闭环 D 级音频放大器

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TAS5708

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产品详情

Audio input type Digital Input Architecture Class-D Speaker channels (max) Stereo Rating Catalog Power stage supply (max) (V) 26 Power stage supply (min) (V) 10 Load (min) (Ω) 6 Control interface Hardware, Software Closed/open loop Closed Analog supply (min) (V) 3 Analog supply voltage (max) (V) 3.6 Sampling rate (max) (kHz) 48 Operating temperature range (°C) 0 to 85
Audio input type Digital Input Architecture Class-D Speaker channels (max) Stereo Rating Catalog Power stage supply (max) (V) 26 Power stage supply (min) (V) 10 Load (min) (Ω) 6 Control interface Hardware, Software Closed/open loop Closed Analog supply (min) (V) 3 Analog supply voltage (max) (V) 3.6 Sampling rate (max) (kHz) 48 Operating temperature range (°C) 0 to 85
HTQFP (PHP) 48 81 mm² 9 x 9
  • Audio Input/Output
    • 20-W Into an 8-Ω Load From an 18-V Supply
    • Wide PVCC Range (10 V to 26 V); 3.3 V Digital Supply
    • Supports One Serial Audio Input (8 kHz - 48 kHz Sample Rates) (LJ/RJ/I2S)
    • Power-Stage Feedback Allows Operation From Poorly Regulated Power Supplies
  • Audio/PWM Processing
    • Factory-Trimmed Internal Oscillator for Automatic Rate Detection
    • High-End 32-Bit Data Path Audio Processor
    • 14 Biquads for Speaker EQ
    • Dynamic Range Control (DRC)
  • Benefits
    • EQ: Speaker Equalization Improves Audio Performance
    • DRC: Enables Speaker Protection and Night-Mode Listening.
    • Autobank Switching: Preloaded Coefficients for Three Different Sample Rates Eliminates the Need to Update Coefficients When Sample Rate Changes
    • Autodetect: Automatically Detects Sample-Rate Changes Eliminating the Need for External Microprocessor Intervention
    • Closed-Loop Power Stage: Enables Wide PVCC Operating Range and Reduced Power Supply Ripple Distortion
  • Audio Input/Output
    • 20-W Into an 8-Ω Load From an 18-V Supply
    • Wide PVCC Range (10 V to 26 V); 3.3 V Digital Supply
    • Supports One Serial Audio Input (8 kHz - 48 kHz Sample Rates) (LJ/RJ/I2S)
    • Power-Stage Feedback Allows Operation From Poorly Regulated Power Supplies
  • Audio/PWM Processing
    • Factory-Trimmed Internal Oscillator for Automatic Rate Detection
    • High-End 32-Bit Data Path Audio Processor
    • 14 Biquads for Speaker EQ
    • Dynamic Range Control (DRC)
  • Benefits
    • EQ: Speaker Equalization Improves Audio Performance
    • DRC: Enables Speaker Protection and Night-Mode Listening.
    • Autobank Switching: Preloaded Coefficients for Three Different Sample Rates Eliminates the Need to Update Coefficients When Sample Rate Changes
    • Autodetect: Automatically Detects Sample-Rate Changes Eliminating the Need for External Microprocessor Intervention
    • Closed-Loop Power Stage: Enables Wide PVCC Operating Range and Reduced Power Supply Ripple Distortion

The TAS5708 is a 20-W, efficient, digital audio power amplifier for driving stereo bridge-tied speakers. A 32-bit datapath eliminates the need for pre-scaling before processing and preserves signal integrity without sacrificing dynamic range. A digital audio processor with fully programmable digital filters allows designers to custom tune speakers for optimum sound in small enclosures. A programmable DRC can adjust power levels for a scaleable design while also enabling night-mode listening modes.

The closed-loop architecture allows the device to operate from poorly regulated supplies. Figure 1 below shows the benefit of the feedback architecture when a noisy supply (1kHz, 500mVpp ripple) modulates a 10kHz audio input. The figure shows a 40dB improvement in sideband suppression when compared to an open-loop design. This correlates directly to a 24dB improvement in distortion as seen in Figure 2.

The TAS5708 is a 20-W, efficient, digital audio power amplifier for driving stereo bridge-tied speakers. A 32-bit datapath eliminates the need for pre-scaling before processing and preserves signal integrity without sacrificing dynamic range. A digital audio processor with fully programmable digital filters allows designers to custom tune speakers for optimum sound in small enclosures. A programmable DRC can adjust power levels for a scaleable design while also enabling night-mode listening modes.

The closed-loop architecture allows the device to operate from poorly regulated supplies. Figure 1 below shows the benefit of the feedback architecture when a noisy supply (1kHz, 500mVpp ripple) modulates a 10kHz audio input. The figure shows a 40dB improvement in sideband suppression when compared to an open-loop design. This correlates directly to a 24dB improvement in distortion as seen in Figure 2.

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类型 标题 下载最新的英语版本 日期
* 数据表 20-W STEREO DIGITAL AUDIO POWER AMPLIFIER WITH EQ/DRC and FEEDBACK 数据表 2008年 12月 4日
应用手册 Guidelines for Measuring Audio Power Amplifier Performance (Rev. A) 2019年 8月 26日
应用手册 AN-1849 An Audio Amplifier Power Supply Design (Rev. C) 2019年 6月 27日
应用手册 AN-1737 Managing EMI in Class D Audio Applications (Rev. A) 2013年 5月 1日
EVM 用户指南 TAS5708/10EVM - User Guide (Rev. A) 2009年 1月 30日

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订购和质量

包含信息：
  • RoHS
  • REACH
  • 器件标识
  • 引脚镀层/焊球材料
  • MSL 等级/回流焊峰值温度
  • MTBF/时基故障估算
  • 材料成分
  • 鉴定摘要
  • 持续可靠性监测
包含信息：
  • 制造厂地点
  • 封装厂地点

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