GDB990 - 3Gb/s, HD, SD 16 channel digital audio de-embedder with ‘TWINS’ dual channel function

Description

The GDB990 is a 3GB/s,HD SDI and SD SDI digital audio de-embedder. It is capable of extracting up to 8 AES/EBU digital audio channels (16 mono channels). The core of these modules 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 that 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 outputs can be controlled to adjust Phase, Gain and delay (on the fly).

Specifications

• Dual (TWINS*) or single channel SDI mode
• 8 AES/EBU outputs (available with 110 Ohm and 75 Ohm connectors)
• 8 extra AES/EBU inputs through the Synapse bus
• 2 SDI inputs (with auto switch on carrier loss and switch back function)
• 2 SDI + embedded audio outputs
• Pre and post delay de-embedding
• 8 presets that configure all 16 output channels at once. controlled by GPI or ACP (Cortex)
• Audio level and phase control
• Audio offset delay up to 1300 ms
• Video offset delay up to one second (or 2x 500ms)
• 16 extra audio channels (4 groups) with ADD-ON card for additional audio outputs
• Peak detection 0, -6, -12 and -18dBFS
• Silence detection with threshold (-100 to -20dBFS) and time control (1 to 255 sec)
• Transparent for ATC time code RP188, RP196, RP215
• Locks to Tri-level, Bi-level syncs and SDI input
• Full control and status monitoring through the front panel of the SFR04/SFR08/SFR18 frame and the Ethernet port (ACP)
• Optional 1 or 2 fiber inputs, 1 or 2  fiber outputs or a fiber in and output (replacing 1 SDI in and output) on the I/O panel
• Optional relay bypass (BHX18 or BHX18D)