The 520AD4-HD Audio De-embedder extracts embedded audio from 2 specified groups as defined by SMPTE ST 299-1 from a 1.5Gb/s serial HDTV or as defined by SMPTE ST 272 from a 270Mb/s serial SD video signal.

Up to 8 selected channels may be delayed up to 3 seconds and re-embedded onto the output video and/or directed to 4 AES outputs. An extra AES input is provided as a backup channel, in case of loss of primary, or as the source of voice-over. The video output may be optionally delayed up to 5 frames to achieve lip sync with the audio.

This device also handles the Dolby® E Metadata in VANC. The module has multiple sources for this metadata including VANC, and externally supplied metadata. The decoded or de-embedded Dolby® E metadata can be provided as an output for downstream devices (ie. Dolby® E encoders etc.).

VistaLINK® enables control and configuration capabilities via Simple Network Management Protocol (SNMP). This offers the flexibility to manage the module status monitoring and configuration from SNMP enabled control systems such as Evertz VistaLINK® PRO locally or remotely.

The 520AD4-HD is housed in the 3RU 500FR exponent frame that will hold up to 16 modules.

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  • Supports SMPTE ST 292-1 (1.5Gb/s) or SMPTE ST 259 (270Mb/s) serial digital video signals
  • Video input relay bypass for power failure bypass protection.
  • AES input for backup/voice-over source
  • 2 processed video outputs
  • 4 AES de-embedded and processed outputs
  • 1 Dolby Metadata output (RS-422/485)
  • De-embeds and re-embeds 2 audio groups - user-selectable
  • Selectable audio sources for AES and embedded outputs
  • Adjustable video (up to 7 frames) and audio delay (up to 3 seconds) to achieve lip sync at output
  • Headphone jack with monitoring stereo channel
  • Card edge LEDs for module status, Video and Audio present
  • Card edge display for card status & audio channel peak levels bar graphs
  • Configurable Dolby® Metadata input and output
  • VistaLINK® capable for remote monitoring via SNMP (using VistaLINK® PRO) when installed in 500FR frame with 500FC VistaLINK® Frame Controller


Serial Video Input
StandardSMPTE ST 292-1, (1080i/60, 1080i/59.94, 1080i/50, 1080p/30(sF), 1080p/29.97(sF), 1080p/25(sF), 1080/24(sF), 1080/23.98(sF), 720p/60, 720p/59.94, 1035i/60, 1035i/59.94)
SMPTE ST 259-C (270Mb/s) 525 or 625 line component
Number of Inputs1
ConnectorBNC per IEC 61169-8 Annex A
EqualizationAutomatic 100m @ 1.5Gb/s with Belden 1694 (or equivalent), 25m with bypass relay active
Serial Video Output
StandardSame as input
Number of Outputs2
ConnectorBNC per IEC 61169-8 Annex A
Signal Level800mV nominal
DC Offset0V ±0.5V
Rise and Fall TimePer standard
Overshoot< 10% of amplitude
Wideband Jitter< 0.2UI
Metadata Input/Output
TypeDolby® E Metadata SMPTE RDD6
Number of Ports1
ConnectorBNC per IEC 61169-8 Annex A (BNC to DB9 dongles are provided)
Baud Rate115,200 baud
AES Audio Input
StandardSMPTE ST 276, single ended AES
Number of Inputs1
ConnectorBNC per IEC 61169-8 Annex A
Level0.2V to 0.5V p-p (5V p-p tolerant)
Return Loss> 25dB, 100kHz to 6MHz, with external termination
EqualizationAutomatic to 1000m with Belden 1694A (or equivalent) @ 48kHz AES signal
Sampling Rate48kHz ±100ppm
AES Audio Output
StandardSMPTE ST 276, single ended AES
Number of Outputs4
ConnectorBNC per IEC 61169-8 Annex A
Sampling Rate48kHz
ResolutionUp to 24 bits
System Performance
De-embedding Latency600µs nominal
Additional Audio Delay0s to 3s (user programmable)
Voltage+12V DC
Power10 Watts
EMI/RFIComplies with FCC Part 15 Class A, EU EMC Directive
Number of Slots1

Ordering Information

520AD4-HDHD/SD-SDI Audio De-embedder with 4 Unbalanced AES Outputs
500FR3RU exponent Compact High Density Distribution Frame
S501FR500 Series Standalone Enclosure
500FCVistaLINK® Frame Controller
CP-2116E-HRemote Control Panel
CP-2232ERemote Control Panel