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Low-Cost Stereo Audio DAC

Product Details

Key Features

Simplified Block Diagram

Technical Docs

Data Sheet Low-Cost Stereo Audio DAC Jul 02, 2015

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Key Features

  • Simple and Complete Stereo Audio DAC Solutions, No Controls to Set
  • Sigma-Delta Stereo DACs with Built-In Interpolation and Analog Output Filters
  • I2S-Compatible Digital Audio Interface
  • Clickless/Popless Operation
  • 3.5VP-P Output Voltage Swing
  • -87dB THD+N
  • +87dB Dynamic Range
  • Sample Frequencies (fS) from 2kHz to 50kHz
  • Master Clock (MCLK) up to 25MHz
  • Automatic Detection of Clock Ratio (MCLK/LRCLK)

Applications/Uses

  • Digital Video Recorders and Media Servers
  • Set-Top Boxes
  • Video-Game Hardware

Description

The MAX5556 stereo audio sigma-delta digital-to-analog converter (DAC) offers a simple and complete stereo digital-to-analog solution for media servers, set-top boxes, video-game hardware, and other general consumer audio applications. This DAC features built-in digital interpolation/filtering, sigma-delta digital-to-analog conversion, and analog output filtering. Control logic and mute circuitry minimize audible pops and clicks during power-up, power-down, clock changes, or when invalid clock conditions occur.

The MAX5556 receives input data over a 3-wire I2S-compatible interface with left-justified audio data. Data can be clocked by either an external or internal serial clock. The internal serial clock frequency is programmable by selection of a master clock (MCLK) and sample clock (LRCLK) ratio. Sampling rates from 2kHz to 50kHz are supported.

The MAX5556 operates from a single +4.75V to +5.5V analog supply with total harmonic distortion plus noise below -87dB. This device is available in an 8-pin SO package and is specified over the -40°C to +85°C industrial temperature range.

Simplified Block Diagram

MAX5556: Typical Operating Circuit MAX5556: Typical Operating Circuit Zoom icon

Technical Docs

Data Sheet Low-Cost Stereo Audio DAC Jul 02, 2015

Support & Training

Search our knowledge base for answers to your technical questions.

Filtered Search

Our dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .