用户手册 — Texas Instruments PCM2706 Evaluation Module PCM2706EVM-U

目录

• FEATURES

  1
• APPLICATIONS

  1
• DESCRIPTION

  1
• ORDERING INFORMATION

  2
• ABSOLUTE MAXIMUM RATINGS

  2
• RECOMMENDED OPERATING CONDITIONS

  2
• ELECTRICAL CHARACTERISTICS

  3
• THERMAL INFORMATION

  5
• THERMAL INFORMATION

  5
• DEVICE INFORMATION

  6
• FUNCTIONAL BLOCK DIAGRAMS

  9
  • PCM2704C/PCM2705C

    9
  • PCM2706C/PCM2707C

    10
• TYPICAL CHARACTERISTICS: INTERNAL FILTER

  11
  • DAC Digital Interpolation Filter Frequency Response

    11
  • DAC Analog Low-Pass Filter Frequency Response

    11
• TYPICAL CHARACTERISTICS: GENERAL

  12
• DETAILED DESCRIPTION

  16
  • Clock and Reset

    16
  • Operation Mode Selection

    16
    • Power Configuration Select/Host Detection

      16
    • Function Select (PCM2706C/7C Only)

      16
  • USB Interface

    17
    • Device Configuration

      18
    • Interface #0 (Default/Control Interface)

      18
    • Interface #1 (Isochronous-Out Interface)

      19
    • Interface #2 (HID Interface)

      19
    • Endpoints

      19
  • DAC

    20
  • Digital Audio Interface: S/PDIF Output

    20
    • Channel Status Information

      20
    • Copyright Management

      20
  • Digital Audio Interface: I2S Interface Output (PCM2706C/7C)

    20
  • DESCRIPTOR DATA MODIFICATION

    22
  • External ROM Descriptor (PCM2704C/6C)

    22
  • External ROM Example

    25
  • Serial Programming Interface (PCM2705C/7C)

    26
  • SPI Register (PCM2705C/7C)

    27
  • USB Host Interface Sequence

    28
    • Power-On, Attach, and Playback Sequence

      28
    • Play, Stop, and Detach Sequence

      29
    • Suspend and Resume Sequence

      29
• EXAMPLE CIRCUITS

  30
  • Operating Environment

    30
  • Typical Circuit Connection 1: USB Speaker

    30
  • Typical Circuit Connection 2: Remote Headphone

    31
  • Typical Circuit Connection 3: DSP Surround Processing Amplifier

    32
• Revision History

  33