Intel® Core™ Ultra Processor

Datasheet, Volume 1 of 2
Supporting Intel® Core™ Ultra Processor for U/H/U-Type4-series Platforms, formerly known as Meteor Lake

ID Date Version Classification
792044 03/05/2024 Public

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Document Table of Contents

Direct Attached Digital Microphone (PDM) Interface

The direct attached digital microphone interface is a feature offering connections to PDM based digital microphone modules without the need of audio codecs. This provides the lowest possible platform power with the decimation functionality integrated into the audio host controller. Features for the digital microphone interface are listed as follows:

  • Up to 2 Digital Mic Ports with to 2 Digital Mic Modules per Digital Mic Port
  • Ability to combine multiple Digital Mic Ports to for mic arrays that are synchronized on sampling rate basis
  • 2 PCM Audio Streams with independent PCM sampling rates per Digital Mic Port
  • Ability to map each Digital Mic Port stereo PCM streams output to a sub-set of a multi-channel PCM stream data transferred to an Audio Link Hub
    • Support dynamic scaling up/down of microphone channels array after the stream has started
  • Support child clock input mode of operation