ZHCSFK8B September   2016  – October 2017 TAS6424-Q1

PRODUCTION DATA.  

  1. 特性
  2. 应用
  3. 说明
  4. 修订历史记录
  5. Device Comparison Table
  6. Pin Configuration and Functions
  7. Specifications
    1. 7.1 Absolute Maximum Ratings
    2. 7.2 ESD Ratings
    3. 7.3 Recommended Operating Conditions
    4. 7.4 Thermal Information
    5. 7.5 Electrical Characteristics
    6. 7.6 Timing Requirements
    7. 7.7 Typical Characteristics
  8. Parameter measurement Information
  9. Detailed description
    1. 9.1 Overview
    2. 9.2 Functional Block Diagram
    3. 9.3 Feature Description
      1. 9.3.1  Serial Audio Port
        1. 9.3.1.1 I2S Mode
        2. 9.3.1.2 Left-Justified Timing
        3. 9.3.1.3 Right-Justified Timing
        4. 9.3.1.4 TDM Mode
        5. 9.3.1.5 Supported Clock Rates
        6. 9.3.1.6 Audio-Clock Error Handling
      2. 9.3.2  High-Pass Filter
      3. 9.3.3  Volume Control and Gain
      4. 9.3.4  High-Frequency Pulse-Width Modulator (PWM)
      5. 9.3.5  Gate Drive
      6. 9.3.6  Power FETs
      7. 9.3.7  Load Diagnostics
        1. 9.3.7.1 DC Load Diagnostics
        2. 9.3.7.2 Line Output Diagnostics
        3. 9.3.7.3 AC Load Diagnostics
      8. 9.3.8  Protection and Monitoring
        1. 9.3.8.1 Overcurrent Limit (ILIMIT)
        2. 9.3.8.2 Overcurrent Shutdown (ISD)
        3. 9.3.8.3 DC Detect
        4. 9.3.8.4 Clip Detect
        5. 9.3.8.5 Global Overtemperature Warning (OTW), Overtemperature Shutdown (OTSD)
        6. 9.3.8.6 Channel Overtemperature Warning [OTW(i)] and Shutdown [OTSD(i)]
        7. 9.3.8.7 Undervoltage (UV) and Power-On-Reset (POR)
        8. 9.3.8.8 Overvoltage (OV) and Load Dump
      9. 9.3.9  Power Supply
        1. 9.3.9.1 Vehicle-Battery Power-Supply Sequence
        2. 9.3.9.2 Boosted Power-Supply Sequence
      10. 9.3.10 Hardware Control Pins
        1. 9.3.10.1 FAULT
        2. 9.3.10.2 WARN
        3. 9.3.10.3 MUTE
        4. 9.3.10.4 STANDBY
    4. 9.4 Device Functional Modes
      1. 9.4.1 Operating Modes and Faults
    5. 9.5 Programming
      1. 9.5.1 I2C Serial Communication Bus
      2. 9.5.2 I2C Bus Protocol
      3. 9.5.3 Random Write
      4. 9.5.4 Sequential Write
      5. 9.5.5 Random Read
      6. 9.5.6 Sequential Read
    6. 9.6 Register Maps
      1. 9.6.1  Mode Control Register (address = 0x00) [default = 0x00]
      2. 9.6.2  Miscellaneous Control 1 Register (address = 0x01) [default = 0x32]
      3. 9.6.3  Miscellaneous Control 2 Register (address = 0x02) [default = 0x62]
      4. 9.6.4  SAP Control (Serial Audio-Port Control) Register (address = 0x03) [default = 0x04]
      5. 9.6.5  Channel State Control Register (address = 0x04) [default = 0x55]
      6. 9.6.6  Channel 1 Through 4 Volume Control Registers (address = 0x05-0x088) [default = 0xCF]
      7. 9.6.7  DC Load Diagnostic Control 1 Register (address = 0x09) [default = 0x00]
      8. 9.6.8  DC Load Diagnostic Control 2 Register (address = 0x0A) [default = 0x11]
      9. 9.6.9  DC Load Diagnostic Control 3 Register (address = 0x0B) [default = 0x11]
      10. 9.6.10 DC Load Diagnostic Report 1 Register (address = 0x0C) [default = 0x00]
      11. 9.6.11 DC Load Diagnostic Report 2 Register (address = 0x0D) [default = 0x00]
      12. 9.6.12 DC Load Diagnostics Report 3—Line Output—Register (address = 0x0E) [default = 0x00]
      13. 9.6.13 Channel State Reporting Register (address = 0x0F) [default = 0x55]
      14. 9.6.14 Channel Faults (Overcurrent, DC Detection) Register (address = 0x10) [default = 0x00]
      15. 9.6.15 Global Faults 1 Register (address = 0x11) [default = 0x00]
      16. 9.6.16 Global Faults 2 Register (address = 0x12) [default = 0x00]
      17. 9.6.17 Warnings Register (address = 0x13) [default = 0x20]
      18. 9.6.18 Pin Control Register (address = 0x14) [default = 0xFF]
      19. 9.6.19 AC Load Diagnostic Control 1 Register (address = 0x15) [default = 0x00]
      20. 9.6.20 AC Load Diagnostic Control 2 Register (address = 0x16) [default = 0x00]
      21. 9.6.21 AC Load Diagnostic Impedance Report Ch1 through CH4 Registers (address = 0x17-0x1A) [default = 0x00]
      22. 9.6.22 AC Load Diagnostic Phase Report High Register (address = 0x1B) [default = 0x00]
      23. 9.6.23 AC Load Diagnostic Phase Report Low Register (address = 0x1C) [default = 0x00]
      24. 9.6.24 AC Load Diagnostic STI Report High Register (address = 0x1D) [default = 0x00]
      25. 9.6.25 AC Load Diagnostic STI Report Low Register (address = 0x1C) [default = 0x00]
      26. 9.6.26 Miscellaneous Control 3 Register (address = 0x21) [default = 0x00]
      27. 9.6.27 Clip Control Register (address = 0x22) [default = 0x01]
      28. 9.6.28 Clip Window Register (address = 0x23) [default = 0x14]
      29. 9.6.29 Clip Warning Register (address = 0x24) [default = 0x00]
      30. 9.6.30 ILIMIT Status Register (address = 0x25) [default = 0x00]
      31. 9.6.31 Miscellaneous Control 4 Register (address = 0x26) [default = 0x40]
  10. 10Application and Implementation
    1. 10.1 Application Information
      1. 10.1.1 AM-Radio Band Avoidance
      2. 10.1.2 Parallel BTL Operation (PBTL)
      3. 10.1.3 Demodulation Filter Design
      4. 10.1.4 Line Driver Applications
    2. 10.2 Typical Applications
      1. 10.2.1 BTL Application
        1. 10.2.1.1 Design Requirements
        2. 10.2.1.2 Power Supplies
        3. 10.2.1.3 Communication
        4. 10.2.1.4 Detailed Design Procedure
          1. 10.2.1.4.1 Hardware Design
          2. 10.2.1.4.2 Digital Input and the Serial Audio Port
          3. 10.2.1.4.3 Bootstrap Capacitors
          4. 10.2.1.4.4 Output Reconstruction Filter
        5. 10.2.1.5 Application Curves
      2. 10.2.2 PBTL Application
        1. 10.2.2.1 Design Requirements
          1. 10.2.2.1.1 Detailed Design Procedure
        2. 10.2.2.2 Application Curves
  11. 11Power Supply Recommendations
  12. 12Layout
    1. 12.1 Layout Guidelines
      1. 12.1.1 Electrical Connection of Thermal pad and Heat Sink
      2. 12.1.2 EMI Considerations
      3. 12.1.3 General Guidelines
    2. 12.2 Layout Example
    3. 12.3 Thermal Considerations
  13. 13器件和文档支持
    1. 13.1 文档支持
      1. 13.1.1 相关文档
    2. 13.2 接收文档更新通知
    3. 13.3 社区资源
    4. 13.4 商标
    5. 13.5 静电放电警告
    6. 13.6 Glossary
  14. 14机械、封装和可订购信息

封装选项

请参考 PDF 数据表获取器件具体的封装图。

机械数据 (封装 | 引脚)
  • DKQ|56
订购信息

特性

  • 高级负载诊断
    • 无输入时钟的情况下也可运行
    • 交流诊断功能通过阻抗和相位响应实现高频扬声器检测
  • 轻松满足 CISPR25-L5 EMC 规范
  • 符合汽车应用 标准
  • 音频输入
    • 4 通道 I2S 或 4/8 通道 TDM 输入
    • 输入采样率:44.1kHz、48kHz、96kHz
    • 输入格式:16 位至 32 位 I2S 和 TDM
  • 音频输出
    • 4 通道桥接负载 (BTL),可选并行桥接负载 (PBTL)
    • 高达 2.1MHz 的输出开关频率
    • 在 4Ω 负载、25V 电源电压和 10% 总谐波失真 (THD) 的条件下,输出功率为 75W
    • 在 2Ω 负载、14.4V 电源电压和 10% THD 的条件下,输出功率为 45W
    • 在 2Ω 负载、25V 电源电压和 10% THD 的条件下,输出功率为 150W
  • 在 4Ω 负载和 14.4V 电源电压条件下的音频性能
    • 输出功率为 1W 时的总谐波失真 + 噪声 (THD+N) < 0.03%
    • 42µVRMS 输出噪声
    • -90dB 串扰
  • 负载诊断功能
    • 输出负载开路和短路
    • 输出至电池短路或接地短路
    • 线路输出检测能力高达 6kΩ
    • 独立于主机运行
    • 通过可编程性实现灵活的生产线测试
  • 保护
    • 输出限流
    • 输出短路保护
    • 40V 负载突降
    • 可承受接地开路和电源开路
    • 直流偏移
    • 过热
    • 欠压和过压
  • 常规运行
    • 4.5V 至 26.4V 电源电压
    • I2C 控制,共 4 个地址选项
    • 削波检测和热警告

应用

  • 汽车音响主机
  • 汽车外部放大器模块

说明

TAS6424-Q1 器件是一款采用 2.1MHz PWM 开关频率的通道数字输入 D 类音频放大器,以非常小的 PCB 尺寸实现成本优化的解决方案,可针对启停事件在低至 4.5V 的电压下全面运行,并可在高达 40kHz 的音频带宽下提供出色的音质

TAS6424-Q1 D 类音频放大器专为汽车音响主机和外部放大器模块而设计。在 14.4V 电源电压条件下,当负载为 4Ω、THD+N 为 10% 时,该器件可提供 4 通道的 27W 输出功率;当负载为 2Ω、THD+N 为 10% 时,该器件可提供 45W 的输出功率。在 25V 电源电压条件下,当负载为 4Ω、THD+N 为 10% 时,该器件可提供 75W 的输出功率。与传统的线性放大器解决方案相比,D 类拓扑技术显著提高了器件效率。输出开关频率既可以设置为高于 AM 频带,以便消除 AM 频带干扰并降低输出滤波器尺寸及成本;也可以设置为低于 AM 频带,以便优化效率。

如需了解引脚兼容的双通道放大器,请参阅 TAS6422-Q1

该器件采用 56 引脚 HTSSOP PowerPAD ™封装,外露散热焊盘朝上。

器件信息(1)

器件型号封装封装尺寸(标称值)
TAS6424-Q1HSSOP (56)18.41mm × 7.49mm
  1. 如需了解所有可用封装,请参阅数据表末尾的可订购产品附录。

PCB 区域

TAS6424-Q1 front_slos870.gif

修订历史记录

Changes from A Revision (October 2016) to B Revision

  • Changed 特性说明 部分以便改善“产品文件夹”布局Go

Changes from * Revision (September 2016) to A Revision

  • 发布了完整版数据表Go