Overview
DDA106 single input 1x6 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.
The DDA106 isolated input feeds AES audio to six separate outputs. An internal switch selects either re-clocking or non-re-clocking 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.
DDA106 units work with AES signals that contain sample rates from 27 through 192kHz and 16-bit through 24-bit density, thus permitting very high resolution signals to be distributed.
The DDA106 uses XLR input/output connectors, and operates from and drives a 110-ohm balanced shielded twisted pair distribution system per AES3-1992. Switchable line termination is provided via an internal switch. Standard practice dictates that the last AES input be terminated.
Features
• Accepts sample rates from 27 to 192kHz
• Switchable re-clocking regenerates stable data before distribution
• Transformer balanced and isolated input
• Switchable input termination
• Individual, transformer balanced and isolated 110-ohm XLR outputs
• Six outputs
• Quiet, internal power supply
• AC Input 100-250 VAC 50/60 Hz, 25W Maximum
• Attractive and rugged 1RU package
Specifications
INPUT
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CONNECTORS - 1 each XLR Female
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LEVEL - XLR 0.2Vp-p minimum
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IMPEDANCE - Transformer isolated, balanced and floating, XLR 110 ohms; terminating resistors may be switched in or out via internal switch
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SAMPLING FREQUENCY - 27 to 192kHz
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CABLE LENGTH - > 1000 feet (300 meters) of 110 ohm cable with equalizer
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EQUALIZER - EQ for long lines via internal switch
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CLOCK - Regenerated from input signal with dual mode PLL or non-re-clocked to preserve surround coding, switchable via internal switch
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A-B INPUTS BRIDGED - Inputs can be bridged via internal switch to provide 1x6 output capability
OUTPUTS
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CONNECTORS - 3 each XLR Male
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LEVEL - XLR 4Vp-p loaded
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IMPEDANCE - XLR 110 ohms, balanced and transformer isolated
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OUTPUT JITTER - < 300 picoseconds peak to peak.
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PROPAGATION DELAY - < 25 nanoseconds
INDICATORS
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POWER
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AES INPUT LOCKED
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AES EQ ENABLED
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AUDIO ERROR
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A-B INPUTS BRIDGED
POWER SUPPLY - Internal Supply, AC Input 100-250 VAC 50/60 Hz, 25W Maximum, IEC320 3 pin connector
SHIPPING SIZE - 20.5” W x 4.75” H x 16.5” D, 9 lbs.
WARRANTY - Limited, One Year Warranty