ZHCSI79B March   2016  – May 2018 TAS5751M

PRODUCTION DATA.  

  1. 1 特性
  2. 2 应用
  3. 3 说明
    1.     Device Images
      1.      功率与 PVDD 间的关系
      2.      简化框图
  4. 4 修订历史记录
  5. 5 Pin Configuration and Functions
    1.     Pin Functions
  6. 6 Specifications
    1. 6.1  Absolute Maximum Ratings
    2. 6.2  ESD Ratings
    3. 6.3  Recommended Operating Conditions
    4. 6.4  Thermal Characteristics
    5. 6.5  Electrical Characteristics
    6. 6.6  Speaker Amplifier Characteristics
    7. 6.7  Protection Characteristics
    8. 6.8  Master Clock Characteristics
    9. 6.9  I²C Interface Timing Requirements
    10. 6.10 Serial Audio Port Timing Requirements
    11. 6.11 Typical Characteristics
      1. 6.11.1 Typical Characteristics - Stereo BTL Mode
      2. 6.11.2 Typical Characteristics - Mono PBTL Mode
  7. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Audio Signal Processing Overview
    4. 7.4 Feature Description
      1. 7.4.1 Clock, Autodetection, and PLL
      2. 7.4.2 PWM Section
      3. 7.4.3 PWM Level Meter
      4. 7.4.4 Automatic Gain Limiter (AGL)
      5. 7.4.5 Headphone/Line Amplifier
      6. 7.4.6 Fault Indication
      7. 7.4.7 SSTIMER Pin Functionality
      8. 7.4.8 Device Protection System
        1. 7.4.8.1 Overcurrent (OC) Protection With Current Limiting
        2. 7.4.8.2 Overtemperature Protection
        3. 7.4.8.3 Undervoltage Protection (UVP) and Power-On Reset (POR)
    5. 7.5 Device Functional Modes
      1. 7.5.1 Serial Audio Port Operating Modes
      2. 7.5.2 Communication Port Operating Modes
      3. 7.5.3 Speaker Amplifier Modes
        1. 7.5.3.1 Stereo Mode
        2. 7.5.3.2 Mono Mode
    6. 7.6 Programming
      1. 7.6.1 I²C Serial Control Interface
        1. 7.6.1.1 General I²C Operation
        2. 7.6.1.2 I²C Slave Address
          1. 7.6.1.2.1 I²C Device Address Change Procedure
        3. 7.6.1.3 Single- and Multiple-Byte Transfers
        4. 7.6.1.4 Single-Byte Write
        5. 7.6.1.5 Multiple-Byte Write
        6. 7.6.1.6 Single-Byte Read
        7. 7.6.1.7 Multiple-Byte Read
      2. 7.6.2 Serial Interface Control and Timing
        1. 7.6.2.1 Serial Data Interface
        2. 7.6.2.2 I²S Timing
        3. 7.6.2.3 Left-Justified
        4. 7.6.2.4 Right-Justified
      3. 7.6.3 26-Bit 3.23 Number Format
    7. 7.7 Register Maps
      1. 7.7.1 Register Summary
      2. 7.7.2 Detailed Register Descriptions
        1. 7.7.2.1  Clock Control Register (0x00)
        2. 7.7.2.2  Device ID Register (0x01)
        3. 7.7.2.3  Error Status Register (0x02)
        4. 7.7.2.4  System Control Register 1 (0x03)
        5. 7.7.2.5  Serial Data Interface Register (0x04)
        6. 7.7.2.6  System Control Register 2 (0x05)
        7. 7.7.2.7  Soft Mute Register (0x06)
        8. 7.7.2.8  Volume Registers (0x07, 0x08, 0x09)
        9. 7.7.2.9  Volume Configuration Register (0x0E)
        10. 7.7.2.10 Modulation Limit Register (0x10)
        11. 7.7.2.11 Interchannel Delay Registers (0x11, 0x12, 0x13, and 0x14)
        12. 7.7.2.12 PWM Shutdown Group Register (0x19)
        13. 7.7.2.13 Start/Stop Period Register (0x1A)
        14. 7.7.2.14 Oscillator Trim Register (0x1B)
        15. 7.7.2.15 BKND_ERR Register (0x1C)
        16. 7.7.2.16 Input Multiplexer Register (0x20)
        17. 7.7.2.17 PWM Output MUX Register (0x25)
        18. 7.7.2.18 AGL Control Register (0x46)
        19. 7.7.2.19 PWM Switching Rate Control Register (0x4F)
        20. 7.7.2.20 Bank Switch and EQ Control (0x50)
  8. 8 Application and Implementation
    1. 8.1 Application Information
      1. 8.1.1 External Component Selection Criteria
        1. 8.1.1.1 Component Selection Impact on Board Layout, Component Placement, and Trace Routing
        2. 8.1.1.2 Amplifier Output Filtering
    2. 8.2 Typical Applications
      1. 8.2.1 Stereo Bridge Tied Load Application
        1. 8.2.1.1 Design Requirements
        2. 8.2.1.2 Detailed Design Procedure
          1. 8.2.1.2.1 Component Selection and Hardware Connections
          2. 8.2.1.2.2 Control and Software Integration
          3. 8.2.1.2.3 I²C Pullup Resistors
          4. 8.2.1.2.4 Digital I/O Connectivity
          5. 8.2.1.2.5 Recommended Startup and Shutdown Procedures
            1. 8.2.1.2.5.1 Start-Up Sequence
            2. 8.2.1.2.5.2 Normal Operation
            3. 8.2.1.2.5.3 Shutdown Sequence
            4. 8.2.1.2.5.4 Power-Down Sequence
        3. 8.2.1.3 Application Performance Plots
      2. 8.2.2 Mono Parallel Bridge Tied Load Application
        1. 8.2.2.1 Design Requirements
        2. 8.2.2.2 Detailed Design Procedure
        3. 8.2.2.3 Application Performance Plots
  9. 9 Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
      1. 10.1.1 Decoupling Capacitors
      2. 10.1.2 Thermal Performance and Grounding
    2. 10.2 Layout Example
  11. 11器件和文档支持
    1. 11.1 商标
    2. 11.2 静电放电警告
    3. 11.3 术语表
  12. 12机械、封装和可订购信息

封装选项

机械数据 (封装 | 引脚)
散热焊盘机械数据 (封装 | 引脚)
订购信息

8.2.2 Mono Parallel Bridge Tied Load Application

A mono system refers to a system in which the amplifier is used to drive a single loudspeaker. Parallel Bridge Tied Load (PBTL) indicates that the two full-bridge channels of the device are placed in parallel and drive the loudspeaker simultaneously using an identical audio signal. The primary benefit of operating this device in PBTL operation is to reduce the power dissipation and increase the current sourcing capabilities of the amplifier output. In this mode of operation, the current limit of the audio amplifier is approximately doubled while the on-resistance is approximately halved.

The loudspeaker can be a full-range transducer or one that only reproduces the low-frequency content of an audio signal, as in the case of a powered subwoofer. Often in this use case, two stereo signals are mixed together and sent through a low-pass filter to create a single audio signal which contains the low-frequency information of the two channels.

The Mono PBTL Configuration is shown in Figure 69.

Figure 69. Mono Parallel Bridge Tied Load Application
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