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(DENSITÉ) SERIES
Description
The Digital Audio Distribution Amplifier DDA-1112
supports AES3-id 75 Ω and provides 9 outputs, or 8
outputs with an input loop. The input features clock
regeneration for reduced jitter and signal restoration. A
signal detection stage permits to control the content of the
audio signal. A multi-coloured Led, visible with the door
closed, report the card status. The DDA-1112 requires a
"single" or a "double" rear connector panel
FUNCTIONAL BLOCK DIAGRAM
AUDIO
INPUT
SPECIFICATIONS
Input
Signal: .......................AES3-id (SMPTE 276M)
Level: ........................0.1 to 7.0 Vpp
Impedance: ...............75 Ω unbalanced or Hi-Z
..................................(selection by a jumper)
Equalization: .............0 to >2000 m
Outputs
Signal: .......................AES3-id (SMPTE 276M)
Level: ........................1 Vpp
Impedance: ...............75 Ω unbalanced
Return loss:...............15 dB
Jitter reduction: ........>15 dB (@ 100 kHz)
Specific jitter:.............<0.005 UI pp (700 Hz to 100 kHz)
DDA-1112
.
Eq
Reclocker
OFF
ON
Internal
LOAD
Select
Microcontroller
Status
DDA-1112 Digital Audio Distribution Amplifier
Guide to Installation and Operation
Features
•
Digital audio distribution amplifier 1 input to 4,
8 or 9 outputs
•
AES3-id audio unbalanced input
•
Remote control of carrier quality
•
Silence detect with user adjustable delay and
threshold
•
Intra frame output for monitoring
•
Status Led and remote reporting
•
Signal regeneration
•
V, U, C, P bits transparency
Audio
detection
Rem Control
Signal Processing
Sampling:.................. 28 to 100 kHz
Processing delay: ..... <12 µs @ 48kHz
Signal absence
- threshold:................ -48 / -72 dBFS (6 dB step)
- delay: ...................... from 0 to 255 s
V, U, C, P bits transparency
Miscellaneous
Power: ...................... single: 1.4 W
.................................. double: 2 W
DDA-1112
M453-9600-103
May 2006
1
2
3
4
AUDIO
5
OUTPUTS
6
7
8
9
To INTRA FRAME
MONITORING
Page 1 of 6
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Related Manuals for Miranda DDA-1112
Summary of Contents for Miranda DDA-1112
- Page 1 • Silence detect with user adjustable delay and audio signal. A multi-coloured Led, visible with the door threshold closed, report the card status. The DDA-1112 requires a • Intra frame output for monitoring "single" or a "double" rear connector panel •...
- Page 2 Detailed instructions for installing cards and their associated rear Make sure the following items have been shipped with your panels are given in the Densité Frame manual. DDA-1112. If any of the following items are missing, contact Internal Load Card Jumper your distributor or Miranda Technologies Inc.
- Page 3 After pressing the SELECT red: button on the DDA-1112 card, use the keys on the local control panel (described in the Controller card manual) to step through D D A - 1 1 1 2 the displayed menu and adjust the parameters.
- Page 4 Status Icons At the top, to the left of the Miranda logo, are two status icons that report various aspects of the card’s operation. The leftmost (CTRL) icon shows whether card configuration is manual [LOC] or via iControl [REM].
- Page 5 The Factory profile is a read-only set of factory-selected values that can be used to return your DDA-1112 to a standard operating condition. See the DDA-1112 Menu, page 3, to see the default values for all parameters. Alarms Tab Selecting the Alarm config button opens a separate window for error status reporting.
- Page 6 Joining Locators, in which the ADD option opens a dialog box in which the user can identify the Locator by its URL. WARRANTIES Miranda’s Warranty and Warranty Policy are explained in full detail in the Warranty Information Sheet. COMPLIANCE Radio Frequency Interference and Immunity This unit generates, uses, and can radiate radio frequency energy.
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