SLASEX7A June   2021  – December 2021 TAS5828M

PRODUCTION DATA  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Revision History
  5. 5 Pin Configuration and 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 Information
    5. 6.5 Electrical Characteristics
    6. 6.6 Timing Requirements
    7. 6.7 Typical Characteristics
      1. 6.7.1 Bridge Tied Load (BTL) Configuration Curves with BD Modulation
      2. 6.7.2 Bridge Tied Load (BTL) Configuration Curves with 1SPW Modulation
      3. 6.7.3 Parallel Bridge Tied Load (PBTL) Configuration With BD Modulation
      4. 6.7.4 Parallel Bridge Tied Load (PBTL) Configuration With 1SPW Modulation
  7. 7 Parameter Measurement Information
  8. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1 Power Supplies
      2. 8.3.2 Device Clocking
      3. 8.3.3 Serial Audio Port – Clock Rates
      4. 8.3.4 Clock Halt Auto-recovery
      5. 8.3.5 Sample Rate on the Fly Change
      6. 8.3.6 Serial Audio Port - Data Formats and Bit Depths
      7. 8.3.7 Digital Audio Processing
      8. 8.3.8 Class D Audio Amplifier
        1. 8.3.8.1 Speaker Amplifier Gain Select
        2. 8.3.8.2 Class D Loop Bandwidth and Switching Frequency Setting
    4. 8.4 Device Functional Modes
      1. 8.4.1 Software Control
      2. 8.4.2 Speaker Amplifier Operating Modes
        1. 8.4.2.1 BTL Mode
        2. 8.4.2.2 PBTL Mode
      3. 8.4.3 Low EMI Modes
        1. 8.4.3.1 Spread Spectrum
        2. 8.4.3.2 Channel to Channel Phase Shift
        3. 8.4.3.3 Multi-Devices PWM Phase Synchronization
          1. 8.4.3.3.1 Phase Synchronization With I2S Clock In Startup Phase
          2. 8.4.3.3.2 Phase Synchronization With GPIO
      4. 8.4.4 Thermal Foldback
      5. 8.4.5 Device State Control
      6. 8.4.6 Device Modulation
        1. 8.4.6.1 BD Modulation
        2. 8.4.6.2 1SPW Modulation
        3. 8.4.6.3 Hybrid Modulation
    5. 8.5 Programming and Control
      1. 8.5.1 I2 C Serial Communication Bus
      2. 8.5.2 Hardware Control Mode
      3. 8.5.3 I2 C Target Address
        1. 8.5.3.1 Random Write
        2. 8.5.3.2 Sequential Write
        3. 8.5.3.3 Random Read
        4. 8.5.3.4 Sequential Read
        5. 8.5.3.5 DSP Memory Book, Page and BQ update
        6. 8.5.3.6 Checksum
          1. 8.5.3.6.1 Cyclic Redundancy Check (CRC) Checksum
          2. 8.5.3.6.2 Exclusive or (XOR) Checksum
      4. 8.5.4 Control via Software
        1. 8.5.4.1 Startup Procedures
        2. 8.5.4.2 Shutdown Procedures
      5. 8.5.5 Protection and Monitoring
        1. 8.5.5.1 Overcurrent Limit (Cycle-By-Cycle)
        2. 8.5.5.2 Overcurrent Shutdown (OCSD)
        3. 8.5.5.3 DC Detect Error
        4. 8.5.5.4 Overtemperature Shutdown (OTSD)
        5. 8.5.5.5 PVDD Overvoltage and Undervoltage Error
        6. 8.5.5.6 PVDD Drop Detection
        7. 8.5.5.7 Clock Fault
    6. 8.6 Register Maps
      1. 8.6.1 CONTROL PORT Registers
  9. 9 Application and Implementation
    1. 9.1 Application Information
      1. 9.1.1 Inductor Selections
      2. 9.1.2 Bootstrap Capacitors
      3. 9.1.3 Power Supply Decoupling
      4. 9.1.4 Output EMI Filtering
    2. 9.2 Typical Applications
      1. 9.2.1 2.0 (Stereo BTL) System
      2. 9.2.2 Design Requirements
      3. 9.2.3 Detailed Design procedures
        1. 9.2.3.1 Step One: Hardware Integration
        2. 9.2.3.2 Step Two: Hardware Integration
        3. 9.2.3.3 Step Three: Software Integration
      4. 9.2.4 MONO (PBTL) Systems
      5. 9.2.5 Advanced 2.1 System (Two TAS5828M Devices)
  10. 10Power Supply Recommendations
    1. 10.1 DVDD Supply
    2. 10.2 PVDD Supply
  11. 11Layout
    1. 11.1 Layout Guidelines
      1. 11.1.1 General Guidelines for Audio Amplifiers
      2. 11.1.2 Importance of PVDD Bypass Capacitor Placement on PVDD Network
      3. 11.1.3 Optimizing Thermal Performance
        1. 11.1.3.1 Device, Copper, and Component Layout
        2. 11.1.3.2 Stencil Pattern
          1. 11.1.3.2.1 PCB footprint and Via Arrangement
          2. 11.1.3.2.2 Solder Stencil
    2. 11.2 Layout Example
  12. 12Device and Documentation Support
    1. 12.1 Device Support
      1. 12.1.1 Device Nomenclature
      2. 12.1.2 Development Support
    2. 12.2 Receiving Notification of Documentation Updates
    3. 12.3 Support Resources
    4. 12.4 Trademarks
    5. 12.5 Electrostatic Discharge Caution
    6. 12.6 Glossary
  13. 13Mechanical, Packaging, and Orderable Information

Package Options

Refer to the PDF data sheet for device specific package drawings

Mechanical Data (Package|Pins)
  • DAD|32
Thermal pad, mechanical data (Package|Pins)
Orderable Information

8.3.8.2 Class D Loop Bandwidth and Switching Frequency Setting

TAS5828M closed loop structure provides Loop bandwidth setting option (Setting by register 83 -Register address 0x53h-D[6-5]) to co-work with different switching frequency (Setting by register 2 -Register address 0x02h-D[6-4] ). Table 8-3 shows recommended settings for the Loop Bandwidth and Switching Frequency selection. Same Fsw, Better THD+N performance with higher BW.

Table 8-3 Loop Bandwidth and Switching Frequency Setting
Modulation SchemeFswBW (Loop Band Width)Notes
Hybrid, 1SPW384kHz80kHz

Principle: Fsw (Switching Frequency) ≥ 4.2 × Loop Bandwidth

480kHz80kHz, 100kHz
576kHz80kHz, 100kHz, 120kHz
768kHz80kHz, 100kHz, 120kHz, 175kHz
BD384kHz80kHz, 100kHz, 120kHz

Principle: Fsw (Switching Frequency) ≥ 3 × Loop Bandwidth

480kHz80kHz, 100kHz, 120kHz
576kHz80kHz, 100kHz, 120kHz, 175kHz
768kHz80kHz, 100kHz, 120kHz, 175kHz