SBAS451B October   2008  – August  2015 PCM1789

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: Digital Input/Output
    6. 6.6  Electrical Characteristics: DAC
    7. 6.7  Electrical Characteristics: Power-Supply Requirements
    8. 6.8  System Clock Timing Requirements
    9. 6.9  Audio Interface Timing Requirements
    10. 6.10 Three-Wire Timing Requirements
    11. 6.11 SCL and SDA Timing Requirements
    12. 6.12 Typical Characteristics
      1. 6.12.1 Digital Filter
      2. 6.12.2 Digital De-Emphasis Filter
      3. 6.12.3 Dynamic Performance
      4. 6.12.4 Output Spectrum
  7. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1  Analog Outputs
      2. 7.3.2  Voltage Reference VCOM
      3. 7.3.3  System Clock Input
      4. 7.3.4  Reset Operation
      5. 7.3.5  ZERO Flag
      6. 7.3.6  AMUTE Control
      7. 7.3.7  Three-Wire (SPI) Serial Control
      8. 7.3.8  Control Data Word Format
      9. 7.3.9  Register Write Operation
      10. 7.3.10 Timing Requirements
      11. 7.3.11 Two-wire (I2C) Serial Control
      12. 7.3.12 Packet Protocol
      13. 7.3.13 Write Operation
      14. 7.3.14 Read Operation
    4. 7.4 Device Functional Modes
      1. 7.4.1 Sampling Mode
      2. 7.4.2 Audio Serial Port Operation
      3. 7.4.3 Audio Data Interface Formats and Timing
      4. 7.4.4 Audio Interface Timing
      5. 7.4.5 Synchronization with the Digital Audio System
      6. 7.4.6 MODE Control
      7. 7.4.7 Parallel Hardware Control
    5. 7.5 Register Maps
      1. 7.5.1 Control Register Definitions (Software Mode Only)
      2. 7.5.2 Register Definitions
  8. 8 Application and Implementation
    1. 8.1 Application Information
      1. 8.1.1 Connection Diagrams
      2. 8.1.2 Power Supply and Grounding
      3. 8.1.3 Low-Pass Filter and Differential-to-Single-Ended Converter For DAC Outputs
    2. 8.2 Typical Application
      1. 8.2.1 Design Requirements
      2. 8.2.2 Detailed Design Procedure
        1. 8.2.2.1 Hardware Control Method
        2. 8.2.2.2 Audio Input
        3. 8.2.2.3 Audio Output
        4. 8.2.2.4 Master Clock
    3. 8.3 Application Curve
  9. 9 Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Example
  11. 11Device and Documentation Support
    1. 11.1 Documentation Support
      1. 11.1.1 Related Documentation
    2. 11.2 Community Resources
    3. 11.3 Trademarks
    4. 11.4 Electrostatic Discharge Caution
    5. 11.5 Glossary
  12. 12Mechanical, Packaging, and Orderable Information

Package Options

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

9 Power Supply Recommendations

The PCM1789 requires 5 V for the analog supply and 3.3 V for the digital supply. The +5-V supply is used to power the DAC analog and output filter circuitry, and the +3.3-V supply is used to power the digital filter and serial interface circuitry. For best performance, it is recommended to use a linear regulator (such as the REG101-5/33, REG102-5/33, or REG103-5/33) with the +5-V and +3.3-V supplies.

Five capacitors are required for supply bypassing, as shown in Figure 39. These capacitors should be located as close as possible to the PCM1789 package. The 10-μF capacitors are aluminum electrolytic, while the three 1-μF capacitors are ceramic.