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Coders & De-Multiplexers

ISIS 4462A

ISIS / 4462A
BCS Price:Click Here to Contact Us
Item #:MO800229
Condition:Reference Item
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Model Description:
SDI/analog audio de-embedder

Model Details

The 4462A SDI analog audio de-embedder extracts two balanced stereo audio pairs from any group in the ancillary data space of a 270Mb/s SDI stream. Analog outputs are converted by a 24 bit DAC (sampled at 20 or 24 bits dependant on embedded audio format). De-embedding conforms to SMPTE 272M and allows audio to be extracted from any of the four groups. Analog outputs are muted when no embedded audio is present. There is automatic input cable equalisation and a re-clocked SDI output is provided.

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



  • Extracts two balanced analog audio stereo pairs from any group
  • High quality 24 bit audio DAC
  • 20 or 24 bit de-embedding
  • Adjustable full scale output levels to meet all international standards
  • LEDs show group status and input signal presence
  • Automatic input cable equalization up to 150m
  • Re-clocked SDI output
  • Auto sensing 525/625 operation

Control switches

  • Audio group select
  • Output level adjustment


SDI input

Analog output


SMPTE 259M 270Mb/s 525/625 SDI

Balanced analog audio
Connector75ohm BNCNumber2 stereo pairs
Signal level800mV p-p ±10% (terminated)Impedance50 ohm
Return loss>15dB 5-270MHz Output levelMax 0dBFS=+28dBu/ Min 0dBFS=+12dBu
Cable equalization>350m automatic (Belden 8281)Frequency response 20Hz to 20KHz
SDI output
ConnectorRemovable screw terminals
Standards SMPTE 259M 270Mb/s 525/625 SDIPower
Connector75ohm BNC


6-12V DC

Signal level

800mV p-p ±10% (terminated)


810mA @ 6V

DC offset±100mVPower connectorLocking 2.5mm jack connector
Return loss >18dB to 270MHz Other

Audio de-embedding


Show group status and signal presence
StandardsSMPTE 272MTemperature range 0ºC to 45ºC
Embedding20 or 24 bitsDimensions3¼ x 2½ x 1¼



9 oz
Ordering Information
4462A SDI analog audio de-embedder4010 1RU rack mounting frame with central PS for up to 5 units
4000 External power supply4020 2RU rack mounting frame for up to 14 units with single or dual PSUs
opt34021 Central power supply for 4020 2RU rack mounting frame

Additional Information


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