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4461DU SDI unbalanced AES/EBU audio embedder
4461DU

Features

  • Inserts 2 unbalanced AES/EBU stereo pairs
  • Inserts audio into any group
  • Replaces or adds to existing audio
  • Digital silence inserted if no audio feed is present
  • Selectable 20 or 24 bit embedding
  • LEDs show group status and input signal presence
  • Automatic equalization up to 350m
  • EDH can be generated and inserted
  • Auto sensing 525/625 operation
Control switches
  • Audio group select
  • 20/24 bit embedding
  • Append or overwrite audio

Description

The 4461DU SDI unbalanced AES/EBU audio embedder inserts two unbalanced stereo AES/EBU stream into the ancillary data space of a 270Mb/s SDI signals. The input stream can be embedded as 20 or 24 bit audio. Embedding conforms to SMPTE 272M and allows audio to be inserted into any of the four groups. Existing audio groups can be added to or completely removed. Digital silence is inserted when an audio feed is absent. There is automatic input cable equalization and a re-clocked SDI output.

The unit is housed in an extremely compact and rugged aluminum case and is suitable for both field and studio applications.
Specifications
SDI input

AES/EBU input

Standards

SMPTE 259M 270Mb/s 525/625 SDI

 Standard
 Unbalanced AES/EBU SMPTE 276M
Connector 75ohm BNC Number 2
Signal level 800mV p-p ±10% (terminated) Type Transformer coupled
Return loss >15dB 5-270MHz Connector 75ohm BNC
Cable equalization 350m automatic (Belden 8281) Level 0.2-10V p-p
SDI output Sample Rate 48KHz (sychronized to video)
Standards SMPTE 259M 270Mb/s 525/625 SDI Power
Connector 75ohm BNC Voltage 6-12V DC

Signal level

800mV p-p ±10% (terminated)

 Current 440mA @ 6V
DC offset ±100mV

Power connector

 Locking 2.5mm jack connector
Return loss >18dB to 270MHz

Other
Audio embedding LEDs Show group status and signal presence
Standards SMPTE 272M Temperature range 0ºC to 45ºC
Embedding 20 or 24 bits

Dimensions

 3¼ x 2½ x 1¼
    Weight 9 oz
Ordering Information
4461DU SDI unbalanced AES/EBU audio embedder 4010 1RU rack mounting frame with central PS for up to 5 units
4000 External power supply 4020 2RU rack mounting frame for up to 14 units with single or dual PSUs
opt3 4021 Central power supply for 4020 2RU rack mounting frame
Preliminary data sheet. We reserve the right to change technical specifications without prior notice.
The ISIS Group, Inc.
119 E. McKnight Way, Unit A
Grass Valley, CA 95949
USA
Phone: 530-477-2984 Fax: 530-477-2986



Internet: www.isis-group.com
Email: ldole@isis-group.com

 

11-08