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GeckoFlex 8925DMB-U HD/SD Unbalanced Audio De-Embedder

The 8925DMB-U is a compact HD/SD digital audio de-embedder (audio demultiplexer) module. Ideal for building dense audio/video infrastructure for production and playout applications, it supports both PCM and synchronous Dolby E audio. And with a fiber-ready architecture, it can support up to two fiber inputs or up to two fiber outputs. The module is available with four balanced or unbalanced AES outputs. The four AES outputs are synchronous to the video. You can force the output PCM audio sample resolution to 20 or 24 bits or automatically pass input format. The module also provides four HD/SD-SDI outputs, one of which is a direct re-clocked feed of the input.

  • Eight-channel HD/SD audio de-embedder (demultiplexer) with AES outputs
  • Any embedded audio stream can be passed and distributed to any discrete output
  • Choice of four unbalanced AES outputs
  • Four HD-SDI/SDI outputs (one active loop-through)
  • Support 48 kHz audio sample rate and 20-bit or 24-bit audio sample resolution
  • Handles Dolby E
  • Fiber-ready option for receiving or transmitting over fiber
  • Remote control and monitoring via Ethernet frame interface
  • HD-SDI audio de-embedding
  • SD and HD signal handling
  • Receiving HD/SD SDI from fiber and de-embedded audio

Supported Frame Types
GeckoFlex with 8900NET (Net Card) for configuration


Power Rating
7.4 Watts – single slot


Video Inputs
HD/SD-SDI:

  • Input equalization: HD up to 125m, SD up to 330m
  • Auto-sensing: yes

Optical: Single-mode (optional)
Formats supported: 1080i @ 59.94, 50, 720p @ 59.94, 50, 480i @ 59.94, 576i @ 50, 1080p @ 23.98, 1080sF @ 23.98


Audio Outputs
AES: Four outputs

  • Signal type – unbalanced: AES-3id-2001
  • Common mode range: N/A
  • Sampling rate: 48 kHz
  • Resolution: 20- or 24-bit
  • Output return loss: >15 dB (100 kHz to 12 MHz)
  • Input impedance: 75Ω
  • Connector type: BNC

Video Outputs
HD/SD-SDI: Four outputs

  • Return loss: >15 dB, 5 to 270 MHz; >15 dB typical, to 1.5 GHz
  • Signal level: SDI 800 mVp-p ±10%
  • Rise/fall time (20-80%): 140 ps typical for HD, 640 ps typical for SD
  • Output jitter, low jitter applied:
    • <0.2 UI HD > 100 kHz
    • < 1.0 UI HD 10 Hz > 100 kHz
    • < 0.2 UI SD > 1 kHz
    • < 0.2 UI SD 10 Hz > 1 kHz

Optical: Single-mode (optional)


Electrical Length (delay)
SDI: HD input <400 ns, SD input <1.2 µs
AES (@48 kHz): HD input 410 ns, SD input 0.83 s


De-Embedding
Output audio stream: Silence or any embedded pair
Output audio resolution: 20-, 24-bit, or auto as input

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August 14, 2012
San Francisco, Calif., August 14, 2012 (SET 2012 Broadcast & Cable, Stand D13/E2) — At the upcoming SET 2012 Broadcast & Cable show in Brazil, Grass Valley™ will demonstrate how acquiring, producing, and distributing all types of high-definition (HD) content with its latest technology solutions can save users time and money, while making their workflows much more efficient.

GeckoFlex 8925DMB-U HD/SD Unbalanced Audio De-Embedder Data Sheet

Posted Nov 17 2010 (MOD-4017M-5 8925DMB-U) File Size: 221.9 KB

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