TIDA-01341

Hi-Fi Headphone Amplifier Power Supply Reference Design

TIDA-01341

Design files

Overview

Headphone amplifiers usually require positive and negative voltages. In this reference design, both voltages are generated from a single input voltage with an integrated split-rail charge-pump converter. It provides small solution size with five capacitors and four resistors.

Features
  • Small solution size
  • Low distortion
  • Small BOM - only nine external components
  • Adjustable output voltage
  • Tested circuit design; test report and design files are included

A fully assembled board has been developed for testing and performance validation only, and is not available for sale.

Design files & products

Design files

Download ready-to-use system files to speed your design process.

TIDUCR0.PDF (389 K)

Reference design overview and verified performance test data

TIDRPV7.PDF (286 K)

Detailed schematic diagram for design layout and components

TIDRPV8.PDF (60 K)

Complete listing of design components, reference designators, and manufacturers/part numbers

TIDRPV9.PDF (309 K)

Detailed overview of design layout for component placement

TIDRPW1.ZIP (938 K)

Files used for 3D models or 2D drawings of IC components

TIDCD66.ZIP (655 K)

Design file that contains information on physical board layer of design PCB

TIDRPW0.PDF (120 K)

PCB layer plot file used for generating PCB design layout

Products

Includes TI products in the design and potential alternatives.

Charge pumps (inductorless)

LM27762Low-Noise Positive- and Negative-Output Charge Pump With Integrated LDO

Data sheet document-pdfAcrobat PDF open-in-new HTML
Audio op amps

OPA1622SoundPlus™ Audio Operational Amplifier with High Performance, Low THD+N and Bipolar Input

Data sheet document-pdfAcrobat PDF open-in-new HTML

Technical documentation

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Type Title Date
* Design guide Hi-Fi Headphone Amplifier Power Supply Reference Design Jan. 06, 2017

Related design resources

Reference designs

REFERENCE DESIGN
PMP9781 Small, High-Efficiency Split-Rail Supply Reference Design for Portable Audio Applications

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