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TAS5704

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具有扬声器 EQ、DRC 和硬件控制功能的 20W 立体声、10V 至 26V、数字输入、D 级音频放大器

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TAS5704

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产品详情

Audio input type Digital Input Architecture Class-D Speaker channels (max) 4 Rating Catalog Power stage supply (max) (V) 26 Power stage supply (min) (V) 10 Load (min) (Ω) 4 Output power (W) 20 SNR (dB) 100 THD + N at 1 kHz (%) 0.05 Iq (typ) (mA) 33 Control interface Hardware Closed/open loop Closed Analog supply (min) (V) 3 Analog supply voltage (max) (V) 3.6 Sampling rate (max) (kHz) 192 PSRR (dB) 60 Operating temperature range (°C) 0 to 85
Audio input type Digital Input Architecture Class-D Speaker channels (max) 4 Rating Catalog Power stage supply (max) (V) 26 Power stage supply (min) (V) 10 Load (min) (Ω) 4 Output power (W) 20 SNR (dB) 100 THD + N at 1 kHz (%) 0.05 Iq (typ) (mA) 33 Control interface Hardware Closed/open loop Closed Analog supply (min) (V) 3 Analog supply voltage (max) (V) 3.6 Sampling rate (max) (kHz) 192 PSRR (dB) 60 Operating temperature range (°C) 0 to 85
HTQFP (PAP) 64 144 mm² 12 x 12
  • Audio Input/Output
    • 20-W into an 8- Load From an 18-V Supply
    • Two Serial Audio Inputs (Four Audio Channels)
    • Supports Multiple Output Configurations:
      • 2-Ch Bridged Outputs (20 W × 2)
      • 4-Ch Single-Ended Outputs (10 W × 4)
      • 2-Ch Single-Ended + 1-Ch Bridged (2.1) (10 W × 2 + 20 W)
  • Closed Loop Power Stage Architecture
    • Improved PSRR Reduces Power Supply Performance Requirements
    • Higher Damping Factor Provides for Tighter, More Accurate
      Sound With Improved Bass Response
    • Lower EMC Emissions
    • Output Power is Independent of Supply Voltage Variation
  • Wide PVCC Range From (10 V to 26 V)
  • Supports 32-kHz–192-kHz (DVD-Audio) Sample Rates (LJ/RJ/I2S)
  • Line-Level Subwoofer PWM Outputs
  • Audio/PWM Processing (Hardware Controlled)
    • 4-Step Gain Control (-3dB, 3dB, 9dB, 12dB)
    • Soft Mute Control (50% Output Duty Cycle)
  • Factory-Trimmed Internal Oscillator Enables Automatic Detection of
    Incoming Sample Rates
  • Thermal and Short-Circuit Protection

System Two, Audio Precision are trademarks of Audio Precision, Inc.
  • Audio Input/Output
    • 20-W into an 8- Load From an 18-V Supply
    • Two Serial Audio Inputs (Four Audio Channels)
    • Supports Multiple Output Configurations:
      • 2-Ch Bridged Outputs (20 W × 2)
      • 4-Ch Single-Ended Outputs (10 W × 4)
      • 2-Ch Single-Ended + 1-Ch Bridged (2.1) (10 W × 2 + 20 W)
  • Closed Loop Power Stage Architecture
    • Improved PSRR Reduces Power Supply Performance Requirements
    • Higher Damping Factor Provides for Tighter, More Accurate
      Sound With Improved Bass Response
    • Lower EMC Emissions
    • Output Power is Independent of Supply Voltage Variation
  • Wide PVCC Range From (10 V to 26 V)
  • Supports 32-kHz–192-kHz (DVD-Audio) Sample Rates (LJ/RJ/I2S)
  • Line-Level Subwoofer PWM Outputs
  • Audio/PWM Processing (Hardware Controlled)
    • 4-Step Gain Control (-3dB, 3dB, 9dB, 12dB)
    • Soft Mute Control (50% Output Duty Cycle)
  • Factory-Trimmed Internal Oscillator Enables Automatic Detection of
    Incoming Sample Rates
  • Thermal and Short-Circuit Protection

System Two, Audio Precision are trademarks of Audio Precision, Inc.

The TAS5704 is a 20-W, efficient, digital audio power amplifier for driving stereo bridge-tied speakers. Two serial data inputs allow processing of up to four discrete audio channels and seamless integration to most digital audio processors accepting a wide range of input data and clock rates. A hardware configurable data path allows these channels to be routed to the internal speaker drivers or output via the subwoofer PWM outputs.

The TAS5704 is a slave-only device receiving all clocks from external sources. The TAS5704 operates at a 384-kHz switching rate for 32-, 48-, 96-, and 192-kHz data, and at a 352.8 kHz switching rate for 44.1-, 88.2-, and 176.4-kHz data. The 8× oversampling combined with the fourth-order noise shaper provides a flat noise floor and excellent dynamic range from 20 Hz to 20  kHz.

The closed-loop architecture of the TAS5704 provides several benefits. The high power supply rejection enables superior audio performance from a noisy, low cost supply. The high damping factor allows tighter control over speaker movement resulting in an improved bass response. Finally, switching edge rate control lowers EMC emissions without sacrificing audio performance.

The TAS5704 is a 20-W, efficient, digital audio power amplifier for driving stereo bridge-tied speakers. Two serial data inputs allow processing of up to four discrete audio channels and seamless integration to most digital audio processors accepting a wide range of input data and clock rates. A hardware configurable data path allows these channels to be routed to the internal speaker drivers or output via the subwoofer PWM outputs.

The TAS5704 is a slave-only device receiving all clocks from external sources. The TAS5704 operates at a 384-kHz switching rate for 32-, 48-, 96-, and 192-kHz data, and at a 352.8 kHz switching rate for 44.1-, 88.2-, and 176.4-kHz data. The 8× oversampling combined with the fourth-order noise shaper provides a flat noise floor and excellent dynamic range from 20 Hz to 20  kHz.

The closed-loop architecture of the TAS5704 provides several benefits. The high power supply rejection enables superior audio performance from a noisy, low cost supply. The high damping factor allows tighter control over speaker movement resulting in an improved bass response. Finally, switching edge rate control lowers EMC emissions without sacrificing audio performance.
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下一代 20W 立体声、16V 闭环数字输入音频 D 级放大器： TAS5760L

下一代 25W 立体声、26V 闭环数字输入音频 D 级放大器： TAS5760M

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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 Feedback 数据表 (Rev. A) 2010年 8月 19日
应用手册 Using Thermal Calculation Tools for Analog Components (Rev. A) 2019年 8月 30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
应用手册 Interfacing an I2S Device to an MSP430 Device (Rev. A) 2010年 3月 22日
EVM 用户指南 TAS5704EVM - User Guide 2008年 4月 11日

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  • 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
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  • 持续可靠性监测
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  • 封装厂地点

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