Miranda ADX-1881-3RU 2 AES digital audio de-embedder

Miranda ADX-1881-3RU 2 AES digital audio de-embedder - ADX-1881-3RU

Key Features

• HD/SD-SDI input with automatic equalization


• Automatic detection of video input format


• Two pass-through HD/SD-SDI video outputs


• 8 AES outputs at 110 ohm balanced or 75 ohm unbalanced, depending on rear panel in use


• Audio level adjustment, -96 to +12 dB


• Selectable audio delay of up to 3 frames in 1/2 frame steps


• 24-bit digital audio de-embedding


• Built-in audio test tone signal


• Audio silence output on loss of video input


• Left/right channels swappable for each AES output


• Selectable routing of audio groups to AES outputs


• Co-phased audio outputs


• Dolby E compatible


• RS-422 serial data output signal reconstructed from ANC data inserted by the embedder. Output can also be Dolby E or Dolby Digital


• Metadata embedded in VANC with proprietary DID


• Linear timecode (LTC) output translated from ancillary timecode (ATC) data or digital vertical interval timecode (DVITC)


• Two opto-isolated GPI data output signals reconstructed from ANC data inserted by the embedder


• By combining AMX-1881 embedder and ADX-1881 de-embedder cards, a full duplex link may be established

Specifications

• Video signal: HD/SD-SDI SMPTE 292M/SMPTE 259M


• Embedded audio as per SMPTE 299M/SMPTE 272M


• Embedded ATC/DVITC as per SMPTE RP 188/SMPTE 266M


• Cable length: Up to 110/250m (360/820 ft.) of Belden 1694A


• Return loss: >15 dB, 5 MHz to 1.5 GHz

• Signal: AES3


• Level: 3.0 Vp-p ±10%


• Impedance: 110Ω balanced

• Signal: AES-3id (SMPTE 276M)


• Level: 1.0 Vp-p ±10%


• Impedance: 75Ω unbalanced

• Sampling rate: 48 kHz synchronous

• Signal: Reconstructed LTC from ATC/DVITC


• Impedance: <55 ohm source, unbalanced 1 kΩ load


• Level: 1.0 Vp-p

• Signal: RS-422


• Serial mode: Reconstruction of signal input to embedder (38,400 or 115,200 Bd)


• Dolby E/Dolby Digital mode: Dolby Metadata: RS-422, 115.2 kBd

• Signal: Opto-isolated, common emitter


• Forward voltage: 30V max


• Reverse voltage: 5V max


• Rate: DC- to 250 Hz

• Propagation delay: 47 ns


• Signal: HD/SD-SDI SMPTE 292M/SMPTE 259M


• Return loss: >15 dB up to 1.5 GHz


• Wideband jitter: as per SMPTE-259M-C and 292M

• Signal path: 10-bit video / 24-bit audio


• Audio latency: 875 μs (combined embedding and extraction*)


• Audio delay: Up to 3 video frames (1/2 frame steps)


• ATC/DVITC delay: None, 1, 2 or 3 frames before translation to LTC


• RS-422 latency: 500 μs max. (combined embedding and extraction *) (1 frame in metadata mode)


• GPI latency: 4 video lines (combined embedding and extraction*)


• Test signals: Audio - 1 kHz tone (R steady, L pulsed) -18 dBFS (EBU R49, R68)


• LTC - 10 s loop starting at 23:59:00:00

• Power: 9.5W

Diagram