Lynx Technik yellobrik CHD 1412 4K HDMI to 12G-SDI Converter + Frame Synchronizer

The Yellobrik CHD 1412 is a versatile and compact HDMI to SDI converter with an integrated frame synchronizer, designed to provide a fully synchronized SDI input from an external asynchronous HDMI source. It supports various SDI signals, including 12G, 6G, 3G, 1.5G, and SD-SDI, ensuring compatibility with a wide range of professional video equipment. The module features a flexible reference sync input that accepts any analog video sync format, including SD bi-level sync, black burst, color bars, and tri-level sync. Audio inputs can be either professional balanced audio with selectable full-scale levels or unbalanced consumer line-level audio. The CHD 1412 is compatible with LynxCentraal and yelloGUI software packages, providing access to additional internal settings, including adjustable video delay for timing purposes. An optional SDI fiber output is also available via a variety of plug-in SFP modules.

Key Features

• Supports 12G / 6G / 3G / 1.5G / SD-SDI signals
• 3G-SDI Level A and Level B support
• Integrated frame synchronizer
• Multi-format sync reference input - cross-lock compatible
• 2 x SDI outputs with optional SDI fiber output
• HDMI embedded PCM and AC3 audio passes transparently
• Balanced analog audio, unbalanced line-level audio, or AES input
• Selectable AES channel for embedding external audio
• HDMI, reference, and audio present LED indication
• Compatible with LynxCentraal & yelloGUI for additional internal settings

Technical Specifications

Video Formats

• (UHD) 3840x2160p
• (HD) 1920x1080p
• (HD) 1920x1080i
• (HD) 1280x720p

Video Input Digital

• 1x HDMI Type A connector, HDMI v2.0b
• Supports up to 8 channels of embedded audio in HDMI, passed transparently or replaced with external analog audio input

Reference Input

• SDTV: Analog 525 or 625 bi-level sync, black burst, or color bars
• HDTV, 3G, 12G: All tri-level sync standards (exceptions 1080p 50/59.94/60Hz)
• Cross-lock compatible
• SMPTE 274M, SMPTE 296M - 75 Ohm BNC connector

Frame Synchronizer

• Functional if valid reference is detected; otherwise operates in free-run (asynchronous) mode
• External audio and HDMI input are frequency locked to external reference, fully cross-lock compatible across standards
• One frame adjustable delay (in line and pixel increments) using LynxCentraal or yelloGUI

SDI Outputs

• 2 x SDI video, 75 Ohm BNC (both outputs carry the same signal)
• SMPTE 259M, SMPTE 292M, SMPTE 424M, SMPTE 2081-1, SMPTE 2082-1

Fiber Output

• Optional plug-in SFP for optical SDI output (see fiber options table)
• SMPTE 297 - 2006

Audio Inputs

• Left and right analog audio using 3.5mm jack plugs
• 10k Ohm differential balanced input mode with selectable full-scale levels (24, 22, 20, 18, 15, 12 dBu, and user-definable)
• Unbalanced mode with line level at -10 dBV
• Selectable AES channel for audio embedding (channels 1 through 8)
• Frequency response: <+/- 0.1dB 20Hz to 20kHz
• 48kHz A/D sample rate (frequency locked to SDI output)

Power

• +12V DC @ 10.0W nominal (supports 10 - 14V DC input range)

Physical

• Size (including connectors): 123mm x 90mm x 22mm (4.84” x 3.54” x 0.86”)
• Weight: 186g (6.56oz)

Ambient

• Operating temperature: 5 - 40ºC (41 - 104ºF)
• Humidity: 90% (non-condensing)