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LM4550B - Multi-Channel Audio Codec

General Description

The LM4550B device is an audio codec for PC systems which is fully PC99 compliant and performs the analog intensive functions of the AC '97 Rev 2.1 architecture.

Using 18-bit Sigma-Delta ADCs and DACs, the LM4550B provides 90 dB of Dynamic Range.

Key Features

  • 1 AC '97 Rev 2.1 Compliant.
  • High Quality Sample Rate Conversion From 4 kHz to 48 kHz in 1 Hz Increments.
  • Supports up to 6 DAC Channel Systems With Multiple LM4550Bs or With Other TI LM45xx Codecs.
  • Unique TI Chaining Function Shares a Single Controller SDATA_IN Pin Among Multiple Codecs.
  • Stereo Headphone Amp With Separate Gain Control.
  • TI's 3D Sound Stereo Enhancement Circuitry.
  • Advanced Power Management Support.
  • External Amp.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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Product Folder Sample & Buy Technical Documents Tools & Software Support & Community LM4550B SNAS276G – MAY 2005 – REVISED SEPTEMBER 2015 LM4550B AC '97 Rev 2.1 Multi-Channel Audio Codec With Stereo Headphone Amplifier, Sample Rate Conversion and TI 3D Sound 1 Features •1 AC '97 Rev 2.