TAS5717 具有集成电容器的 TAS5717 数字输入立体声放大器,无耳机放大器 | 德州仪器 TI.com.cn

TAS5717
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具有集成电容器的 TAS5717 数字输入立体声放大器,无耳机放大器

具有集成电容器的 TAS5717 数字输入立体声放大器,无耳机放大器 - TAS5717
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描述

The TAS5717/TAS5719 is a 10-W/15-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 TAS5717/9 is a slave-only device receiving all clocks from external sources. The TAS5717/TAS5719 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.

特性

  • Audio Input/Output
    • TAS5717 Supports 2×10 W and TAS5719 Supports 2×15 W Output
    • Wide PVDD Range, From 4.5 V to 26 V
    • Efficient Class-D Operation Eliminates Need for Heatsinks
    • Requires Only 3.3 V and PVDD
    • One Serial Audio Input (Two Audio Channels)
    • I2C Address Selection via PIN (Chip Select)
    • Supports 8-kHz to 48-kHz Sample Rate (LJ/RJ/I2S)
    • External Headphone-Amplifier Shutdown Signal
    • Integrated CAP-Free Headphone Amplifier
    • Stereo Headphone (Stereo 2-V RMS Line Driver) Outputs
  • Audio/PWM Processing
    • Independent Channel Volume Controls With 24-dB to Mute
    • Programmable Two-Band Dynamic Range Control
    • 14 Programmable Biquads for Speaker EQ
    • Programmable Coefficients for DRC Filters
    • DC Blocking Filters
    • 0.125-dB Fine Volume Support
  • 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
    • AD, BD, and Ternary PWM-Mode Support
    • Thermal and Short-Circuit Protection
  • Benefits
    • EQ: Speaker Equalization Improves Audio Performance
    • DRC: Dynamic Range Compression. Can Be Used As Power Limiter.
      Enables Speaker Protection, Easy Listening, Night-Mode Listening
    • DirectPath Technology: Eliminates Bulky DC Blocking Capacitors
    • Stereo Headphone/Stereo Line Drivers: Adjust Gain via External Resistors,
      Dedicated Active Headpone Mute Pin, High Signal-to-Noise Ratio
    • Two-Band DRC: Set Two Different Thresholds for Low- and
      High-Frequency Content

FilterPro is a trademark of Texas Instruments.

参数

与其它产品相比 扬声器放大器 邮件 下载到电子表格中
Part number 立即下单 Audio input type Architecture Speaker channels (Max) Power stage supply (Min) (V) Power stage supply (Max) (V) Output power (W) Load (Min) (ohms) SNR (dB) THD + N @ 1 kHz (%) Iq (Typ) (mA) Control interface Closed/open loop Analog supply (Min) (V) Analog supply (Max) (V) Power to parallel bridge tied load (Max) (W) Sampling rate (Max) (kHz) PSRR (dB) Operating temperature range (C) Rating
TAS5717 立即下单 Digital Input     Class-D     Stereo     4.5     26     30     4     105     0.13     48     Software     Open     3     3.6       48       0 to 85     Catalog    
TAS5719 立即下单 Digital Input     Class-D     Stereo     4.5     26     15     4     105     0.13     26     Software     Open     3     3.6       48       0 to 85     Catalog    
TAS5753MD 立即下单 Digital Input     Class-D     Stereo     8     26.4     20     2     105     0.13     23     I2C     Open     3     3.6     65     48       0 to 85     Catalog    
TAS5760MD 立即下单 Digital Input     Class-D     Stereo     4.5     26.4     24     2     100     0.03     27     Hardware
Software    
Closed     4.5     26.4     43.2     96     80     -25 to 85     Catalog    
TAS5805M 立即下单 Digital Input     Class-D     Stereo     4.5     26.4     23     4