SLOS821B June   2013  – September 2014 TPA6133A2

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Simplified Application Diagram
  5. 5 Revision History
  6. 6 Pin Configuration and Functions
  7. 7 Specification
    1. 7.1 Absolute Maximum Ratings
    2. 7.2 Handling Ratings
    3. 7.3 Recommended Operating Conditions
    4. 7.4 Thermal Information
    5. 7.5 Electrical Characteristics
    6. 7.6 Operating Characteristics
    7. 7.7 Typical Characteristics
  8. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1 Headphone Amplifiers
    4. 8.4 Device Functional Modes
      1. 8.4.1 Modes of Operation
  9. 9 Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Application
      1. 9.2.1 Design Requirements
      2. 9.2.2 Detailed Design Procedure
        1. 9.2.2.1 Input-Blocking Capacitors
        2. 9.2.2.2 Charge Pump Flying Capacitor and CPVSS Capacitor
        3. 9.2.2.3 Decoupling Capacitors
        4. 9.2.2.4 Optional Test Setup
      3. 9.2.3 Application Curves
  10. 10Power Supply Recommendations
  11. 11Layout
    1. 11.1 Layout Guidelimes
      1. 11.1.1 Exposed Pad On TPA6133A2RTJ Package
      2. 11.1.2 GND Connections
    2. 11.2 Layout Example
  12. 12Device and Documentation Support
    1. 12.1 Trademarks
    2. 12.2 Electrostatic Discharge Caution
    3. 12.3 Glossary
  13. 13Mechanical, Packaging, and Orderable Information

1 Features

  • DirectPath™ Ground-Referenced Outputs
    • Eliminates Output DC Blocking Capacitors
    • Reduces Board Area
    • Reduces Component Height and Cost
    • Full Bass Response Without Attenuation
  • Power Supply Voltage Range: 2.5 V to 5.5 V
  • High Power Supply Rejection Ratio
    (>100 dB PSRR)
  • Differential Inputs for Maximum Noise Rejection (69 dB CMRR)
  • High-Impedance Outputs When Disabled
  • Advanced Pop and Click Suppression Circuitry
  • GPIO Control for Shutdown
  • 20 Pin, 4 mm x 4 mm WQFN Package

2 Applications

  • Mobile Phones
  • Audio Headsets
  • Notebook Computers
  • High Fidelity Applications

3 Description

The TPA6133A2 is a stereo DirectPath™ headphone amplifier with GPIO control. The TPA6133A2 has minimal quiescent current consumption, with a typical IDD of 4.2 mA, making it optimal for portable applications. The GPIO control allows the device to be put in a low power shutdown mode.

The TPA6133A2 is a high fidelity amplifier with an SNR of 93 dB. A PSRR greater than 100 dB enables direct-to-battery connections without compromising the listening experience. The output noise of 12 μVrms (typical A-weighted) provides a minimal noise background during periods of silence. Configurable differential inputs and high CMRR allow for maximum noise rejection in the noisy environment of a mobile device.

Device Information(1)

PART NUMBER PACKAGE BODY SIZE (NOM)
TPA6133A2 WQFN (20) 4.00 mm x 4.00 mm
  1. For all available packages, see the orderable addendum at the end of the datasheet.

4 Simplified Application Diagram

Apps_Diagram_slos821.gif