TIDA-00385 Reference Design

Texas Instruments

High Fidelity Audio Headphone Playback Reference Design for Portable and Smartphone Applications

Description

Since the use of high fidelity headphones is a growing trend for portable audio playback: higher performance DAC and Headphone Amplifiers are demanded. This system converts digital audio from USB: SPDIF: or optical sources into analog using PCM5242 audio DAC. A high performance TPA6120A2 headphone amplifier in conjunction with the differential DAC achieves stunning musical clarity and definition as well as industry leading noise performance: critical for low noise headphone playback. The power supply architecture is designed to work from a 3.3V source to increase flexibility and integration into existing products and systems.

Features
  • ±5V operation is derived from a 3.3V system power supply for integration into existing systemsGround centered outputStereo differential outputs on PCM5242 DAC for high noise rejectionNoise and Distortion performance is achieved all the way to the headphoneAutomatic sample rate switching up to 384KHzUSB interface: used for evaluation: can be omitted once designed into end equipment
Applications
  • Professional audio amplifier (rack mount)
  • Aircraft cockpit display
  • Interconnect/distribution box
  • Position sensor
  • Professional microphones & wireless systems
  • Professional video camera
  • Piano
  • keyboard & synthesizer
  • Circuit breaker (ACB
  • MCCB
  • VCB)
Product Categories
  • Interface

Parts

Part Number Name Companion Part
SN74AUP1G125 SN74AUP1G125 Buy Datasheet
SRC4392 SRC4392 Buy Datasheet
TPA6120A2 TPA6120A2 Buy Datasheet
TPS65135 TPS65135 Buy Datasheet

Bill Of Materials

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Schematic

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Download the schematic for TIDA-00385

Other Documents

Title Updated Type Size (KB)
TIDA-00385 Gerber 11 Nov 2014 ZIP 857
TIDA-00385 CAD Files 11 Nov 2014 ZIP 11993
TIDA-00385 PCB 11 Nov 2014 PDF 1094
TIDA-00385 Assembly Drawing 11 Nov 2014 PDF 547
TIDA-00385 BOM 11 Nov 2014 PDF 236
TIDA-00385 Schematic and Block Diagram 11 Nov 2014 PDF 144