SLASFD7 April   2024 TAS2505A-Q1

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  I2S/LJF/RJF Timing in Master Mode
    7. 5.7  I2S/LJF/RJF Timing in Slave Mode
    8. 5.8  DSP Timing in Master Mode
    9. 5.9  DSP Timing in Slave Mode
    10. 5.10 I2C Interface Timing
    11. 5.11 SPI Interface Timing
    12. 5.12 Typical Characteristics
      1. 5.12.1 Class D Speaker Driver Performance
      2. 5.12.2 HP Driver Performance
  7. 6 Parameter Measurement Information
  8. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Audio Analog I/O
      2. 7.3.2 Audio DAC and Audio Analog Outputs
      3. 7.3.3 DAC
      4. 7.3.4 POR
      5. 7.3.5 CLOCK Generation and PLL
      6. 7.3.6 Speaker Driver
      7. 7.3.7 Automotive Diagnostics
    4. 7.4 Device Functional Modes
      1. 7.4.1 Digital Pins
      2. 7.4.2 Analog Pins
      3. 7.4.3 Multifunction Pins
      4. 7.4.4 Analog Signals
        1. 7.4.4.1 Analog Inputs AINL and AINR
      5. 7.4.5 DAC Processing Blocks — Overview
      6. 7.4.6 Digital Mixing and Routing
      7. 7.4.7 Analog Audio Routing
      8. 7.4.8 5V LDO
      9. 7.4.9 Digital Audio and Control Interface
        1. 7.4.9.1 Digital Audio Interface
        2. 7.4.9.2 Control Interface
          1. 7.4.9.2.1 I2C Control Mode
          2. 7.4.9.2.2 SPI Digital Interface
        3. 7.4.9.3 Device Special Functions
    5. 7.5 Register Map
  9. 8 Register Map
  10. 9 Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Applications
      1. 9.2.1 Typical Configuration
        1. 9.2.1.1 Design Requirements
        2. 9.2.1.2 Detailed Design Procedure
        3. 9.2.1.3 Application Curves
      2. 9.2.2 Circuit Configuration With Internal LDO
        1. 9.2.2.1 Design Requirements
    3. 9.3 Power Supply Recommendations
    4. 9.4 Layout
      1. 9.4.1 Layout Guidelines
      2. 9.4.2 Layout Example
      3. 9.4.3 Thermal Pad
  11. 10Device and Documentation Support
    1. 10.1 Third-Party Products Disclaimer
    2. 10.2 Documentation Support
      1. 10.2.1 Related Documentation
    3. 10.3 Receiving Notification of Documentation Updates
    4. 10.4 Support Resources
    5. 10.5 Trademarks
    6. 10.6 Electrostatic Discharge Caution
    7. 10.7 Glossary
    8. 10.8 Community Resources
  12. 11Revision History
  13. 12Mechanical, Packaging, and Orderable Information

Package Options

Mechanical Data (Package|Pins)
Thermal pad, mechanical data (Package|Pins)
Orderable Information
7.4.9.2.2 SPI Digital Interface

In the SPI control mode, the TAS2505A-Q1 uses the pins SCL/SSZ=SSZ, SCLK=SCLK, MISO=MISO, SDA/MOSI=MOSI as a standard SPI port with clock polarity setting of 0 (typical microprocessor SPI control bit CPOL = 0). The SPI port allows full-duplex, synchronous, serial communication between a host processor (the master) and peripheral devices (slaves). The SPI master (in this case, the host processor) generates the synchronizing clock (driven onto SCLK) and initiates transmissions. The SPI slave devices (such as the TAS2505A-Q1) depend on a master to start and synchronize transmissions. A transmission begins when initiated by an SPI master. The byte from the SPI master begins shifting in on the slave MOSI pin under the control of the master serial clock (driven onto SCLK). As the byte shifts in on the MOSI pin, a byte shifts out on the MISO pin to the master shift register.

For more detailed information see the TAS2505 Application Reference Guide (SLAU472).