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HDMI 2.1 eARC Transmitter/Receiver

Enhanced Audio Return Channel Solutions for all Versions of HDMI

Related Applications


Lattice eARC White Paper Request

Future Compatibility – eARC is the only way to ensure that an audio device will be fully compatible with future HDMI 2.1 televisions

Simplify – eARC makes home theaters easy to use.

Improve Performance – Delivers all of HDMI-enabled high bitrate home theater audio formats, including Dolby Atmos and DTS:X.

Features

  • Lattice ICs are available for both televisions and audio devices
  • Solutions work with any existing HDMI transmitter or receiver IC and can be used with any version of HDMI
  • Supports both HDMI 2.1 eARC and HDMI 1.4 legacy ARC modes with automatic ARC fallback
  • eARC Data Channel functions are supported via I2C interface: Transmits HDMI 2.1 standard, bi-directional discovery and control signals within the eARC signal
  • 4mm x 4mm QFN package with 0.4mm pin pitch

    Family Table

    HDMI eARC ASSPs SiI9437 SiI9438
    HDMI 2.1 eARC Input Output
    HDMI 2.1 eARC Bi-directional Data Channel Yes Yes
    HDMI 1.4 eARC Fall-back Yes Yes
    SPDIF Output Input
    8-ch I2S interface @ 192 KHz Output Input
    Package 32-pin QFN 32-pin QFN
    Pin Pitch 0.4 mm QFN 0.4 mm QFN
    Package Size 4 x 4 mm 4 x 4 mm
    Starter Kit CP9437 CP9438

    Example Solutions

    eARCExpand Image

    Enhanced Audio Return Channel (eARC)

    • eARC is an audio link that is self-discovering, self-configuring, and fully automatic which sends audio backwards in the HDMI cable, from the TV to an audio device.
    • Automatically works with any video source the television is displaying.
    • Is automatically detected and the TV speaker automatically mutes when eARC is engaged.
    HDMI TxExpand Image

    AVR/Sound Bar (receives eARC)

    • Block Diagram with Sil9347 eARC Receiver (32-pin QFN)
    • With eARC, audio transmission is reverse direction.
    • An HDMI Transmitter in the audio device receives audio over the two eARC pins.

    Video

    Using eARC to Easily Enable Theater Quality Surround Sound
    Expand Video

    Using eARC to Easily Enable Theater Quality Surround Sound

    This video introduces the benefits of HDMI 2.1’s eARC feature:

    • Higher bandwidth – 37M of audio that supports all audio formats
    • Full home theater experience with the simplicity of operating a TV set
    • Future proof receivers against changes in video standards

    Documentation

    Quick Reference
    Information Resources
    TITLENUMBERVERSIONDATEFORMATSIZE
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    SiI9437/SiI9438 ARC/Enhanced ARC Receiver and Transmitter
    		SiI-DB-020132.011/7/2017PDF738.1 KB

    *By clicking on the "Notify Me of Changes" button, you agree to receive notifications on changes to the document(s) you selected.

    TITLENUMBERVERSIONDATEFORMATSIZE
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    HDMI® Enhanced Audio Return Channel (eARC) Future Proofs Home Theater Connectivity with Uncompromised Audio Quality
    		1.01/13/2018PDF294.1 KB

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