EDID Emulator for 4K HDR HDMI Signals

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  • EDID emulation and management for HDMI signals
  • Hot Plug Detect emulation for HDMI source and sink communications
  • Detects and resolves issues associated with signal handshaking between source and destination devices
  • 4K/UHD capability @ 60 Hz with 4:4:4 chroma sampling, plus support for HDR formats
  • HDCP 2.2 compliant

4K HDR Overview

EDID and Hot Plug Detect Emulator for 4K HDR

The Atlona Etude™ Sync (AT-ETU-SYNC) provides EDID emulation and Hot Plug Detect communication between HDMI® sink and source devices. It detects and corrects for signal integrity issues associated with cabling or connections, and can resolve compatibility problems between a source and sink. The Etude Sync is compatible with high dynamic range (HDR) formats and is HDCP 2.2 compliant. It supports 4K/UHD video @ 60 Hz with 4:4:4 chroma sampling, as well as HDMI data rates up to 18 Gbps. In addition to addressing HDMI signal and device-related issues, the Etude Sync reports HDCP compliance at the source and destination, and can manage EDID communication with the source. This device is ideal for AV system troubleshooting as well as ensuring reliable, consistent performance.

The Etude Sync is for residential and commercial applications with the latest as well as emerging 4K/UHD and HDR sources and displays. It is compatible with all video resolutions, audio formats, and color space formats supported in the HDMI 2.0a specification, plus the ability to pass metadata for HDR content. The Etude Sync includes Atlona’s award-winning 10-year limited product warranty and customer support services, so that integrators can specify, purchase, and install with confidence.


The Etude Sync is ideal for use in:

  • Installations utilizing the latest UHD and HDR sources such as Ultra HD Blu-ray players, plus compatible televisions and projectors
  • Identifying and resolving signal handshaking problems between a source and a display (or other destination device)
  • Providing compatibility with legacy HDMI 1.2 source devices that do not support the HDMI 1.3 clock stretching protocol required for HDBaseT™ extension


EDID emulation and management for HDMI signals

  • Provides EDID to the HDMI source device from the display or the Etude Sync’s internal memory
  • Ensures desired audio formats and video resolutions are provided to the AV system

Hot Plug Detect emulation for HDMI source and sink communications

  • Restores +5 volt and HPD signals lost due to faulty or long cables, or when signals are passed through multiple distribution devices
  • Enables the essential signal handshaking necessary for the source to deliver video content

Detects and resolves issues associated with signal handshaking between source and destination devices

  • Ideal for troubleshooting performance or reliability issues related to cabling, terminations, source and display compatibility, and other factors
  • Quickly and easily installs into AV systems to address HDMI signaling or EDID problems and ensure dependable operation

4K/UHD capability @ 60 Hz with 4:4:4 chroma sampling, plus support for HDR formats

  • Compatibility with new and emerging 4K/UHD and HDR-capable sources and displays
  • Fully supports video resolutions, audio formats, and color space formats in the HDMI 2.0a specification

HDCP 2.2 compliant

  • Adheres to latest specification for High-bandwidth Digital Content Protection
  • Allows protected content stream to pass between devices

Provides HDMI signal regeneration for legacy source devices

  • Allows HDMI 1.2 sources such as cable television set-top boxes to be used in newer systems
  • Addresses the lack of support for the HDMI 1.3 clock stretching protocol required in HDBaseT extenders

Front panel power and signal status LEDs

  • LED indicators provide power and signal status information for +5 volt source supply, hot plug detect, and HDCP
  • Quick and easy identification of connection or signal integrity problems, as well as HDCP compliance at source and destination

USB-powered with the included power supply or local device

  • Flexible options available for installing the Etude Sync in the field
  • For testing or troubleshooting, device can conveniently be powered by a laptop or any available USB port nearby

Field-updatable firmware

  • Rear panel USB port provides an easy means for device updates
  • Ensures long-term system return on investment

Low-profile, 1 inch (25 mm) high enclosure

  • Easy installation into racks and confined spaces
  • Keeps devices out-of-sight when placed in public spaces

Included accessories

  • User guide, USB cable, and external universal power supply

Award-winning 10 year limited product warranty

  • Ensures long-term product reliability and performance in residential and commercial systems
  • Specify, purchase, and install with confidence

Etude Sync Product Introduction

Increasing Awareness of HDR at ISE 2017

Video 4096×2160@24/25/30/50/60Hz, 3840×2160@24/25/30/50/60Hz, 2048x1080p,
1080p@23.98/24/25/29.97/30/50/59.94/60Hz, 1080i@50/59.94/60Hz, 720p@50/59.94/60Hz,
576p, 576i, 480p, 480i
VESA 2560×1600, 2048×1536, 1920×1200, 1680×1050, 1600×1200, 1440×900, 1400×1050,
1366×768, 1360×768, 1280×1024, 1280×800, 1152×768, 1024×768, 800×600, 640×480
Color Space YUV, RGB
Chroma Subsampling 4:4:4, 4:2:2, 4:2:0
Color Depth 8-bit, 10-bit, 12-bit
HDMI Output PCM 2Ch, LPCM 5.1, LPCM 7.1, Dolby Digital, Dolby Digital Plus, Dolby TrueHD, DTS 5.1,
DTS-HD Master Audio, DTS:X, Dolby Atmos
Sample Rate 32kHz, 44.1kHz, 48kHz, 88.2kHz, 96kHz, 176.4kHz, 192kHz
Bit Rate up to 24-bit
HDMI UHD@60Hz up to 2 meters up to 6ft
HDMI UHD@24Hz up to 5 meters up to 16ft
HDMI 1080p@60Hz up to 10 meters up to 30ft
HDMI 1080p@24Hz up to 15 meters up to 50ft
Bandwidth 18 Gbps
HDCP 2.2 Compliant
Operating 0°C to 50°C 32°F to 122°F
Storage -20°C to 60°C -4°F to 140°F
Humidity 20 to 90% non-condensing
Consumption 6.5W
Supply Input: AC 100~240 VAC 50/60Hz Output: DC 5V 1A
H x W x D 26 x 109 x 89 (mm) 1.02 x 4.29 x 3.50 (inch)
H x W x D with feet 26 x 109 x 95 (mm) 1.02 x 4.29 x 3.74 (inch)
Unit 0.27 kg 0.6 lbs
Unit CE, FCC
Power Supply CE, FCC, cULus, RoHS, CCC, RCM

AT-ETU-SYNC Application Diagram


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