ATI Audio DDA-106 SERIES 2 Operating And Maintenance Manual - Page 2
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DESCRIPTION
DDA-106 Series 2 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.
DDA-106 Series 2 units have two inputs, selectable from a front panel switch.
The selected input feeds AES audio to six separate outputs. A front panel switch
selects 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.
DDA-106 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 front panel displays full status of the input signal, including Sample rate,
Word Length, Digital Errors and Pro or Consumer Mode.
DDA-106 Series 2 units contain a unique automatic equalization function that can
adjust for extremely long input lines. Equalization works independently for each
input. A Front Panel Lock feature protects all your settings.
The Model DDA-106XLR uses XLR connectors and operates from and drives a
110-ohm balanced shielded twisted pair distribution system per AES3-1992.
The Model DDA-106BNC uses BNC connectors and operates from and drives
single-ended 75-ohm coaxial cable per AES-3id-1995 and is designed to
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 DDA-106BNC with use of an RCA-to-BNC input cable.
Input Loop-through connections are provided to permit multiple units to be
stacked, or to insert the DDA-106 into your digital workflow. Switchable line
termination is provided. 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
• Displays standard sample rates of 32, 44.1, 48, 88.2, 96, 176.4 and 192 kHz
• Displays Word Length of 16, 18, 20 and 24 bit
• Status and error LEDs show clock lock and data validity
• Automatic input equalizers compensate for very long cable runs
ATI Audio Inc.
■ Tel: 856-626-3480
Fax: 856-504-0220
www.
audio.com
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