
Description
The HDB950 is a HD SDI and SD SDI audio de-embedder. It is capable of extracting AES/EBU digital audio channels or analog audio channels. The card has 2 option output boards: 4 mono analog audio outputs (4ch total) per board, or 4 stereo AES/EBU outputs (8ch total) per board.The core consists of four de-embedder-blocks DeEmb_A, DeEmb_B, DeEmb_C and DeEmb_D. In front of these de-embedders are SDI channel selection muxes which allow for individual de-embedding out of the two SDI inputs. The delay blocks can be used in series for a single SDI 4 group de-embedder with up to 1 sec of video offset delay, or in parallel for 2 individual channels with each 2 group de-embedders and individual 500ms offset delay in a fully separate channel TWINS function. Each block is capable of de-embedding 4 audio selectable out of 16 channels from each input. The TWINS mode is a single command operation and controls 2 individual selection switches as can be seen in the block diagram.In addition, four ADD-ON cards can be connected to create a routing matrix. The architecture of DeEmb_A to DeEmb_D blocks is identical. The local AES/EBU or analog outputs can be controlled to adjust Phase, Gain and delay (on the fly). Future upgrades are possible, like for instance the HDB950 can be future upgraded to HDB990, GDB950 or GDB990. This allows for staged implementation of HD infrastructures and spread the cost over multiple budget years.
Specifications