SLASF99 December   2023 TAS5827

PRODUCTION DATA  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  5. 4 Pin Configuration and Functions
  6. 5 Specifications
    1. 5.1 Absolute Maximum Ratings
    2. 5.2 ESD Ratings
    3. 5.3 Recommended Operating Conditions
    4. 5.4 Thermal Information
    5. 5.5 Electrical Characteristics
    6. 5.6 Timing Requirements
    7. 5.7 Typical Characteristics
      1. 5.7.1 Bridge Tied Load (BTL) Configuration Curves with BD Modulation
      2. 5.7.2 Bridge Tied Load (BTL) Configuration Curves with 1SPW Modulation
      3. 5.7.3 Parallel Bridge Tied Load (PBTL) Configuration With BD Modulation
      4. 5.7.4 Parallel Bridge Tied Load (PBTL) Configuration With 1SPW Modulation
  7. 6 Detailed Description
    1. 6.1 Overview
    2. 6.2 Functional Block Diagram
    3. 6.3 Feature Description
      1. 6.3.1 Power Supplies
      2. 6.3.2 Device Clocking
      3. 6.3.3 Serial Audio Port – Clock Rates
      4. 6.3.4 Clock Halt Auto-recovery
      5. 6.3.5 Sample Rate on the Fly Change
      6. 6.3.6 Serial Audio Port - Data Formats and Bit Depths
    4. 6.4 Device Functional Modes
      1. 6.4.1 Software Control
      2. 6.4.2 Speaker Amplifier Operating Modes
        1. 6.4.2.1 BTL Mode
        2. 6.4.2.2 PBTL Mode
      3. 6.4.3 Low EMI Modes
        1. 6.4.3.1 Spread Spectrum
        2. 6.4.3.2 Channel to Channel Phase Shift
        3. 6.4.3.3 Multi-Devices PWM Phase Synchronization
          1. 6.4.3.3.1 Phase Synchronization With I2S Clock In Startup Phase
          2. 6.4.3.3.2 Phase Synchronization With GPIO
      4. 6.4.4 Thermal Foldback
      5. 6.4.5 Device State Control
      6. 6.4.6 Device Modulation
        1. 6.4.6.1 BD Modulation
        2. 6.4.6.2 1SPW Modulation
        3. 6.4.6.3 Hybrid Modulation
      7. 6.4.7 Programming and Control
        1. 6.4.7.1 I2C Serial Communication Bus
        2. 6.4.7.2 Hardware Control Mode
        3. 6.4.7.3 I2C Target Address
          1. 6.4.7.3.1 Random Write
          2. 6.4.7.3.2 Sequential Write
          3. 6.4.7.3.3 Random Read
          4. 6.4.7.3.4 Sequential Read
          5. 6.4.7.3.5 DSP Memory Book, Page and BQ update
          6. 6.4.7.3.6 Checksum
            1. 6.4.7.3.6.1 Cyclic Redundancy Check (CRC) Checksum
            2. 6.4.7.3.6.2 Exclusive or (XOR) Checksum
        4. 6.4.7.4 Control via Software
          1. 6.4.7.4.1 Startup Procedures
          2. 6.4.7.4.2 Shutdown Procedures
        5. 6.4.7.5 Protection and Monitoring
          1. 6.4.7.5.1 Overcurrent Limit (Cycle-By-Cycle)
          2. 6.4.7.5.2 Overcurrent Shutdown (OCSD)
          3. 6.4.7.5.3 DC Detect Error
          4. 6.4.7.5.4 Overtemperature Shutdown (OTSD)
          5. 6.4.7.5.5 PVDD Overvoltage and Undervoltage Error
          6. 6.4.7.5.6 PVDD Drop Detection
          7. 6.4.7.5.7 Clock Fault
    5. 6.5 Register Maps
      1. 6.5.1 reg_map Registers
  8. 7 Application and Implementation
    1. 7.1 Typical Applications
      1. 7.1.1 2.0 (Stereo BTL) System
      2. 7.1.2 Mono (PBTL) Systems
      3. 7.1.3 Layout Guidelines
        1. 7.1.3.1 General Guidelines for Audio Amplifiers
        2. 7.1.3.2 Importance of PVDD Bypass Capacitor Placement on PVDD Network
        3. 7.1.3.3 Optimizing Thermal Performance
          1. 7.1.3.3.1 Device, Copper, and Component Layout
          2. 7.1.3.3.2 Stencil Pattern
          3. 7.1.3.3.3 PCB footprint and Via Arrangement
          4. 7.1.3.3.4 Solder Stencil
        4. 7.1.3.4 Layout Example
  9. 8 Power Supply Recommendations
    1. 8.1 DVDD Supply
    2. 8.2 PVDD Supply
  10. 9 Device and Documentation Support
    1. 9.1 Device Support
      1. 9.1.1 Device Nomenclature
      2. 9.1.2 Development Support
    2. 9.2 Receiving Notification of Documentation Updates
    3. 9.3 Support Resources
    4. 9.4 Trademarks
    5. 9.5 Electrostatic Discharge Caution
    6. 9.6 Glossary
  11. 10Revision History
  12. 11Mechanical, Packaging, and Orderable Information

Package Options

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

6.4.7.2 Hardware Control Mode

For systems that do not require the advanced flexibility of the I2C registers control or does not have an available I2C host controller, the TAS5827 can be used in Hardware Control Mode. Then the device operates in Hardware mode default configurations and any change is accomplished via the Hardware control pins. The audio performance between Hardware and Software Control modes with the same configuration is identical, however, more features are accessible under Software Control Mode through registers.

Several I/O's on the TAS5827 needs to be taken into consideration during schematic design for desired startup settings. The method for going into Hardware Control Mode is to pull high HW_MODE pin 8 to DVDD.

The TAS5827 default Hardware configuration is BTL mode, 768-kHz switching frequency, 1SPW mode, 175 kHz Class D amplifier loop bandwidth, 29.5 Vp/FS analog gain, CBC threshold with 80% of OCP threshold. It requires the HW_SEL0 pin 16 and HW_SEL1 pin 15 directly tied to GND.

Table 6-3 Hardware Control - HW_SEL0 Pin16
Pin ConfigurationAnalog GainH-Bridge Output Configuration
0 Ω to GND29.5 VP/FSBTL
1 kΩ to GND20.9 VP/FSBTL
4.7 kΩ to GND14.7 VP/FSBTL
15 kΩ to GND7.4 VP/FSBTL
33 kΩ to DVDD7.4 VP/FSPBTL
6.8 kΩ to DVDD14.7 VP/FSPBTL
1.5 kΩ to DVDD20.9 VP/FSPBTL
0 Ω to DVDD29.5 VP/FSPBTL
Table 6-4 Hardware Control - HW_SEL1 Pin15
Pin ConfigurationFSW&Class D Loop BandwidthCycle By Cycle Current Limit Threshold Spread SpectrumModulation
0 Ω to GND768 kHz FSW, 175 kHz BWCBC Threshold = 80% OCPDisable1SPW
1 kΩ to GND768 kHz FSW, 175 kHz BWCBC DisableDisable1SPW
4.7 kΩ to GND768 kHz FSW, 175 kHz BWCBC Threshold = 40% OCPDisable1SPW
15 kΩ to GND768 kHz FSW, 175 kHz BWCBC Threshold = 60% OCPDisable1SPW
33 kΩ to DVDD480 kHz FSW, 100 kHz BWCBC DisableEnableBD
6.8 kΩ to DVDD480 kHz FSW, 100 kHz BWCBC Threshold = 80% OCPEnableBD
1.5 kΩ to DVDD480 kHz FSW, 100 kHz BWCBC Threshold = 40% OCPEnableBD
0 Ω to DVDD480 kHz FSW, 100 kHz BWCBC Threshold = 60% OCPEnableBD

Example 1:

BTL Mode, FSW = 768 kHz, 1SPW Modulation, 175 kHz Loop Bandwidth, CBC Threshold = 80% OCP, Analog Gain = 29.5 VP/FS, Spread spectrum disabled.

Figure 6-10 Typical Hardware Control Mode Application Schematic-BTL ModeGUID-B056EB55-AC84-4C66-AEC6-67DBAF3DA920-low.svg

Example 2:

PBTL Mode, FSW = 768 kHz, 1 SPW Moduzlation, 175 kHz Loop Bandwidth, CBC Threshold = 80% OCP, Analog Gain = 29.5 VP/FS, Spread spectrum disabled.

Figure 6-11 Typical Hardware Control Mode Application Schematic-PBTL ModeGUID-26B15AF4-1451-4B0F-A230-F6F9E5AB9653-low.svg