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. 7.1Absolute Maximum Ratings
    2. 7.2ESD Ratings
    3. 7.3Recommended Operating Conditions
    4. 7.4Thermal Information
    5. 7.5Electrical Characteristics
    6. 7.6Timing Requirements
    7. 7.7Typical Characteristics
  8. Parameter measurement Information
  9. Detailed description
    1. 9.1Overview
    2. 9.2Functional Block Diagram
    3. 9.3Feature Description
      1. 9.3.1 Serial Audio Port
        1. 9.3.1.1 I2S Mode
        2. 9.3.1.2Left-Justified Timing
        3. 9.3.1.3Right-Justified Timing
        4. 9.3.1.4TDM Mode
        5. 9.3.1.5Supported Clock Rates
        6. 9.3.1.6Audio-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. 9.3.7.1DC Load Diagnostics
        2. 9.3.7.2Line Output Diagnostics
        3. 9.3.7.3AC Load Diagnostics
      8. 9.3.8 Protection and Monitoring
        1. 9.3.8.1Overcurrent Limit (ILIMIT)
        2. 9.3.8.2Overcurrent Shutdown (ISD)
        3. 9.3.8.3DC Detect
        4. 9.3.8.4Clip Detect
        5. 9.3.8.5Global Overtemperature Warning (OTW), Overtemperature Shutdown (OTSD)
        6. 9.3.8.6Channel Overtemperature Warning [OTW(i)] and Shutdown [OTSD(i)]
        7. 9.3.8.7Undervoltage (UV) and Power-On-Reset (POR)
        8. 9.3.8.8Overvoltage (OV) and Load Dump
      9. 9.3.9 Power Supply
        1. 9.3.9.1Vehicle-Battery Power-Supply Sequence
        2. 9.3.9.2Boosted Power-Supply Sequence
      10. 9.3.10Hardware Control Pins
        1. 9.3.10.1FAULT
        2. 9.3.10.2WARN
        3. 9.3.10.3MUTE
        4. 9.3.10.4STANDBY
    4. 9.4Device Functional Modes
      1. 9.4.1Operating Modes and Faults
    5. 9.5Programming
      1. 9.5.1I2C Serial Communication Bus
      2. 9.5.2I2C Bus Protocol
      3. 9.5.3Random Write
      4. 9.5.4Sequential Write
      5. 9.5.5Random Read
      6. 9.5.6Sequential Read
    6. 9.6Register 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. 9.6.10DC Load Diagnostic Report 1 Register (address = 0x0C) [default = 0x00]
      11. 9.6.11DC Load Diagnostic Report 2 Register (address = 0x0D) [default = 0x00]
      12. 9.6.12DC Load Diagnostics Report 3—Line Output—Register (address = 0x0E) [default = 0x00]
      13. 9.6.13Channel State Reporting Register (address = 0x0F) [default = 0x55]
      14. 9.6.14Channel Faults (Overcurrent, DC Detection) Register (address = 0x10) [default = 0x00]
      15. 9.6.15Global Faults 1 Register (address = 0x11) [default = 0x00]
      16. 9.6.16Global Faults 2 Register (address = 0x12) [default = 0x00]
      17. 9.6.17Warnings Register (address = 0x13) [default = 0x20]
      18. 9.6.18Pin Control Register (address = 0x14) [default = 0xFF]
      19. 9.6.19AC Load Diagnostic Control 1 Register (address = 0x15) [default = 0x00]
      20. 9.6.20AC Load Diagnostic Control 2 Register (address = 0x16) [default = 0x00]
      21. 9.6.21AC Load Diagnostic Impedance Report Ch1 through CH4 Registers (address = 0x17-0x1A) [default = 0x00]
      22. 9.6.22AC Load Diagnostic Phase Report High Register (address = 0x1B) [default = 0x00]
      23. 9.6.23AC Load Diagnostic Phase Report Low Register (address = 0x1C) [default = 0x00]
      24. 9.6.24AC Load Diagnostic STI Report High Register (address = 0x1D) [default = 0x00]
      25. 9.6.25AC Load Diagnostic STI Report Low Register (address = 0x1C) [default = 0x00]
      26. 9.6.26Miscellaneous Control 3 Register (address = 0x21) [default = 0x00]
      27. 9.6.27Clip Control Register (address = 0x22) [default = 0x01]
      28. 9.6.28Clip Window Register (address = 0x23) [default = 0x14]
      29. 9.6.29Clip Warning Register (address = 0x24) [default = 0x00]
      30. 9.6.30ILIMIT Status Register (address = 0x25) [default = 0x00]
      31. 9.6.31Miscellaneous Control 4 Register (address = 0x26) [default = 0x40]
  10. 10Application and Implementation
    1. 10.1Application Information
      1. 10.1.1AM-Radio Band Avoidance
      2. 10.1.2Parallel BTL Operation (PBTL)
      3. 10.1.3Demodulation Filter Design
      4. 10.1.4Line Driver Applications
    2. 10.2Typical Applications
      1. 10.2.1BTL Application
        1. 10.2.1.1Design Requirements
        2. 10.2.1.2Power Supplies
        3. 10.2.1.3Communication
        4. 10.2.1.4Detailed Design Procedure
          1. 10.2.1.4.1Hardware Design
          2. 10.2.1.4.2Digital Input and the Serial Audio Port
          3. 10.2.1.4.3Bootstrap Capacitors
          4. 10.2.1.4.4Output Reconstruction Filter
        5. 10.2.1.5Application Curves
      2. 10.2.2PBTL Application
        1. 10.2.2.1Design Requirements
          1. 10.2.2.1.1Detailed Design Procedure
        2. 10.2.2.2Application Curves
  11. 11Power Supply Recommendations
  12. 12Layout
    1. 12.1Layout Guidelines
      1. 12.1.1Electrical Connection of Thermal pad and Heat Sink
      2. 12.1.2EMI Considerations
      3. 12.1.3General Guidelines
    2. 12.2Layout Example
    3. 12.3Thermal 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. 13.6Glossary
  14. 14机械、封装和可订购信息

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