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

1 Features

  • Enhanced Multi-Level Delta-Sigma DAC:
    • High Performance: Differential, fS = 48 kHz
    • THD+N: –94 dB
    • SNR: 113 dB
    • Dynamic Range: 113 dB
    • Sampling Rate: 8 kHz to 192 kHz
    • System Clock: 128 fS, 192 fS, 256 fS, 384 fS, 512 fS, 768 fS, 1152 fS
    • Differential Voltage Output: 8 VPP
    • Analog Low-Pass Filter Included
    • 4x/8x Oversampling Digital Filter:
      • Passband Ripple: ±0.0018 dB
      • Stop Band Attenuation: –75 dB
    • Zero Flags (16-, 20-, 24-Bits)
  • Flexible Audio Interface:
    • I/F Format: I2S, Left-/Right-Justified, DSP
    • Data Length: 16, 20, 24, 32 Bits
  • Flexible Mode Control:
    • 3-Wire SPI, 2-Wire I2C-Compatible Serial Control Interface, or Hardware Control
    • Connect Up To 4 Devices on One SPI Bus
  • Multi Functions via SPI or I2C I/F:
    • Audio I/F Format Select: I2S, Left-Justified, Right-Justified, DSP
    • Digital Attenuation and Soft Mute
    • Digital De-Emphasis: 32kHz, 44.1kHz, 48kHz
    • Data Polarity Control
    • Power-Save Mode
  • Multi Functions via Hardware Control:
    • Audio I/F Format Select: I2S, Left-Justified
    • Digital De-Emphasis Filter: 44.1kHz
  • Analog Mute by Clock Halt Detection
  • External Reset Pin
  • Power Supplies:
    • 5 V for Analog and 3.3 V for Digital
  • Package: TSSOP-24
  • Operating Temperature Range: –40°C to 85°C

2 Applications

  • Blu-ray Disc™ Players
  • DVD Players
  • AV Receivers
  • Home Theaters
  • Car Audio External Amplifiers
  • Car Audio AVN Applications

3 Description

The PCM1789 is a high-performance, single-chip, 24-bit, stereo, audio digital-to-analog converter (DAC) with differential outputs. The two-channel, 24-bit DAC employs an enhanced multi-level, delta-sigma (ΔΣ) modulator, and supports 8 kHz to 192 kHz sampling rates and a 16-, 20-, 24-, 32-bit width digital audio input word on the audio interface. The audio interface of PCM1789 supports a 24-bit, DSP format in addition to I2S, left-justified, and right-justified formats.

The PCM1789 can be controlled through a three-wire, SPI-compatible or two-wire, I2C-compatible serial interface in software, which provides access to all functions including digital attenuation, soft mute, de-emphasis, and so forth. Also, hardware control mode provides two user-programmable functions through two control pins. The PCM1789 is available in a 24-pin TSSOP package.

Device Information(1)

PART NUMBER PACKAGE BODY SIZE (NOM)
PCM1789 TSSOP (24) 4.40 mm x 7.80 mm
  1. For all available packages, see the orderable addendum at the end of the data sheet.

PCM1789 Typical Application

PCM1789 sbas451_keygraphic.gif

4 Revision History

Changes from A Revision (January 2009) to B Revision

  • Added ESD Ratings table, Feature Description section, Device Functional Modes section, Application and Implementation section, Power Supply Recommendations section, Layout section, Device and Documentation Support section, and Mechanical, Packaging, and Orderable Information section. Go

Changes from * Revision (October 2008) to A Revision