CDH 1811 – 3GBit SDI to HDMI Converter

Model: Yellobrik CDH 1811 Manufacturer: LYNX Technik AG

$720.00 USD

Additional Options



CDH 1811 –  3Gbit SDI to HDMI Converter


  • Supports SDI video inputs up to 3Gbit/s (1080p60)
  • Automatic input standard and format detection
  • Fiber Interface option
  • Native resolution HDMI video output with selectable embedded audio
  • 2 analog and digital AES audio outputs – selectable
  • All 16 audio channels de-embedded from input SDI signal
  • Professional balanced, or unbalanced analog line level audio outputs
  • 16 channel on screen audio metering
  • Selectable Timecode burn in windows
  • Closed caption presence detection and indication
  • AFD,WSS and VI Metadata presence and code display
  • Input present LED indication
  • Audio present LED indication


The CDH 1811 is a versatile, compact SDI to HDMI converter designed to combat a host of monitoring and display applications in Broadcast, Post Production and Pro A/V markets.

Convert 3G/HD/SD – SDI video signals into a standard HDMI signal for monitoring and display. An optional fiber interface allows the module to be used for monitoring fiber connections and also function as a fiber converter. The HDMI output displays the native input resolution on the display (use display scaling functions to fill screen if required)

Two channels of audio can be de-embedded from the incoming video signal and provided as digital AES outputs and analog audio signals. Balanced audio outputs have selectable full scale range presets. The two selected audio channels can also be embedded into the HDMI output, or 8 channels selected from the input signal (channels 1-8 or channels 9-16)

Our unique on-screen overlay mode displays a multitude of additional information about the connected signal, including SDI input format and bit depth, burn-in windows for DVITC,VITC and LTC Timecode, 16 channel on- screen audio metering, Closed caption presence indication and AFD,WSS and VI Metadata presence and on screen code display. Turn any HDMI display into a fully featured SDI monitoring tool.

All user controls are located on the top of the module clearly labeled and easily accessible. This facilitates simple changes to module function and configuration without referring to a manual. The compact portable design makes it suitable for a wide range of applications in broadcast and mobile production environments.


  • Module
  • Power Supply
  • Mounting Brackets
  • HDMI cable
  • Phono to RCA adapters
  • Plastic Transport Case
  • Warranty Registration Card (2 years)

Fiber Optic Interface Option

(Note. this sub module plugs into the side of any CDH 1811 Yellobrik and can be added at any time)

The fiber optic tranceiver option allows selection between fiber and copper input signals and provides a loop out of the fiber input signal. Module also provides a copper SDI output.

OH-TR-1    –   Optical Transceiver SFP module – 10Km – 1310nm 

Technical Specifications

SDI Input

1 x SDI video on 75 Ohm BNC connector


Multi-standard operation from 270Mbit/s to 3Gbit/s

SDTV (525/625)

720p and 1080p (23.98/24/25/29.97/30/50/59.94/60 Hz)

1080psf (23.98/24/25/29.97/30 Hz)

1080i (50/59.94/60 Hz)

Return Loss: > 15dB to 1.5GHz and > 10dB up to 3GHz

Automatic cable EQ (Belden 1694A cable) 250m @ 270Mbit/s, 140m @ 1.5Gbit/s, 80m @ 3Gbit/s

Optical Input

1 x fiber optic input. Singlemode (OH OTR 1 option)

LC/UPC fiber connection (wavelength 1310nm). RX Sensitivity -19dBm

SMPTE 297M – 2006

SDI Output

1 x SDI video on 75 Ohm BNC connector


Multi-standard operation from 270Mbit/s to 3Gbit/s

Optical Output

1 x fiber optic output. Singlemode (OH OTR 1 option)

LC/UPC fiber connection (wavelength 1310nm). TX Power -3dBm

SMPTE 297M – 2006

Max. distance 10Km (6.2 miles) @ 3Gbit/s (Singlemode)

HDMI Output

Version 1.4 (deep color) type A connector

24 bit (3X8bit) and 30bit (3x10bit) deep color (R,G,B / Y,Cr,Cb / X,Y,Z)

2 or 8 channel audio embedding (selectable)

AES Output

AES3id on 75 Ohm BNC, 2 channels (selectable)

Audio Output

Left and right analog audio using 1/4 inch Jack plugs

Balanced mode with 24,22,20,18,15,12 dBu full scale (selectable)

Unbalanced mode with (line level) at -10 dBv

1/4 inch Jack Plug to RCA connection adapters supplied


+12VDC power supply (included)


 105mm x 40mm x 22mm (4.13” x 1.57” x 0.86”)

Model #

CDH 1811


Module, 12V DC power supply, RCA adapters and mounting brackets

Additional information

Weight 4 lbs