Nevion DAC-AVA-DMUX - Manual (Page 5)

DAC-AVA-DMUX Rev. A
nevion.com | 5
1
Product overview
The Flashlink DAC-AVA-DMUX is an HD-SDI/SD-SDI video DAC with built-in frame
synchronizer, optional SDI outputs and optional audio and data outputs.
At the heart of the DAC-AVA-DMUX is an HD/SD frame synchronizer with an adjustable
delay relative to the sync signal. The module accepts black & burst or a tri-level signal from
the frame. The DAC-AVA-DMUX also has a de-glitcher to give error-free synchronous
switching.
A set of configurable analog video outputs and two optional SDI digital outputs are
provided.
The audio embedded in the HD-SDI or SD-SDI stream is de-embedded and can be delayed
relative to video. Each audio channel can be swapped in an audio matrix before they are re-
embedded in the SD-SDI data output stream. It is also possible to turn embedding
completely off and leave the SDI stream unaltered.
A selection of user parameters of the card can be controlled by switches on the board.
Complete control of all parameters is available by use of the Flashlink RS422 Control
Protocol Version 4, which is supported by the Multicon system controller.
Figure 1: DAC-AVA-DMUX-R block diagram
1.1 Hardware products
Two hardware versions of the DAC-AVA-DMUX exist:
DAC-AVA-DMUX+ SD/HD video DAC. Optional 2xSDI out, internal audio handling, and
frame synchronizer functionality.
DAC-AVA-DMUX-R+ SD/HD video DAC with high sensitivity 9/125µm single mode optical
input. Optional 2xSDI out, internal audio handling, and frame
synchronizer functionality.
1.2 Software options
The base products DAC-AVA-DMUX / DAC-AVA-DMUX-R do not have the frame-
synchronized SDI outputs enabled, or the AES and analog audio outputs enabled. Nor do
they have the ability to receive SD-SDI or HD-SDI input signals. This means that at least
one these two input capabilities must be ordered as a factory option or purchased as a
software key upgrade at a later time in order to have a useful product.