ATI Audio DDA208-BNC - Manual (Page 2)

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DESCRIPTION
DDA208 Series 2 1x4 Dual Digital Audio Distribution Amplifiers are designed to
regenerate, isolate and distribute digital audio data formatted in accordance with
specifications AES3-1992 and IEC 958. This is commonly called AES/EBU
formatting or AES3.
DDA208 Series 2 units inputs feed AES audio to eight separate outputs. Internal
jumpers select either re-clocking or non-reclocking of the input signal. In most
cases, re- clocking is preferred, as this feature improves the integrity of weak or
distorted input signals. Re-clocking may be switched off to allow distribution of
AES sync signals, Dolby E encoded AES signals, or other signals that should
not be re- clocked.
DDA208 Series 2 units work with AES signals that contain sample rates from 27
through 192kHz and16-bit through 24-bit density, thus permitting very high
resolution signals to be distributed.
The Model DDA208-XLR uses XLR connectors and operates from and drives a
110-ohm balanced shielded twisted pair distribution system per AES3-1992.
The Model DDA208-BNC uses BNC connectors and operates from and drives
single-ended 7 5 -ohm c o a x i a l c a b l e p e r A E S -3id-1995 a n d i s d e s i g n e d
t o integrate easily into video facilities.
S/PDIF (consumer) formatted digital audio data differs primarily in the use of
consumer type "RCA" audio connectors in an unbalanced 75 ohm system and
can be handled by a DDA208-BNC with use of an RCA-to-BNC input cable.
Input Loop-through connection is provided to permit multiple units to be stacked,
or to insert the DDA208 into your digital workflow. Switchable line termination is
provided via Internal jumpers. Standard practice dictates that the last AES input
be terminated; therefore, if you are not using the loop-through feature, Input
Termination should be switched ON.
FEATURES
• Accepts sample rates from 27 to 192kHz
• Switchable re-clocking regenerates stable data before distribution
• Loop thru transformer balanced and isolated inputs
• Switchable input termination
• Individual, transformer balanced and isolated 110-ohm XLR outputs (XLR only)
• Individual isolated 75-ohm BNC outputs (BNC only)
• Eight outputs
• Quiet, internal power supply
• AC Input 100-250 VAC 50/60 Hz, 25W Maximum
• Attractive and rugged 1RU package