用户手册 — Texas Instruments TPA3008D2

目录

• FEATURES

  1
• DESCRIPTION

  1
• APPLICATIONS

  1
• ABSOLUTE MAXIMUM RATINGS

  2
• DISSIPATION RATING TABLE

  2
• RECOMMENDED OPERATING CONDITIONS

  2
• AVAILABLE OPTIONS

  3
• DC ELECTRICAL CHARACTERISTICS

  3
• AC ELECTRICAL CHARACTERISTICS

  3
• TYPICAL CHARACTERISTICS

  7
• APPLICATION INFORMATION

  12
  • CLASS-D OPERATION

    13
  • Traditional Class-D Modulation Scheme

    13
  • TPA3008D2 Modulation Scheme

    13
  • Efficiency: LC Filter Required With the Traditional Class-D Modulation Scheme

    14
  • Effects of Applying a Square Wave Into a Speaker

    15
  • When to Use an Output Filter for EMI Suppression

    15
  • Gain setting via GAIN0 and GAIN1 inputs

    16
  • INPUT RESISTANCE

    16
  • INPUT CAPACITOR, CI

    17
    • Power Supply Decoupling,CS

      17
    • BSN and BSP Capacitors

      18
    • VCLAMP Capacitors

      18
    • Internal Regulated 5-V Supply (AVDD)

      18
    • Differential Input

      18
  • SHUTDOWN OPERATION

    18
  • USING LOW-ESR CAPACITORS

    18
  • SHORT-CIRCUIT PROTECTION AND AUTOMATIC RECOVERY FEATURE

    19
  • THERMAL PROTECTION

    19
  • PRINTED-CIRCUIT BOARD (PCB) LAYOUT

    19
  • BASIC MEASUREMENT SYSTEM

    20
  • DIFFERENTIAL INPUT AND BTL OUTPUT

    21
  • CLASS-D RC LOW-PASS FILTER

    22