Join the Conversation: Grass Valley on Facebook Grass Valley on Twitter Grass Valley on Youtube Grass Valley on LinkedIn
GeckoFlex 8920DAC Audio D-to-A Converter

The 8920DAC is an easy-to-use digital audio to analog audio converter. Its various modes allow you to modify the outgoing signal, such as channel swapping, channel summing, phase inversion, and more. The remote capability supports mode selection and input monitoring. Typical applications include interfacing between digital and analog equipment, such as speakers, audio mixers, and routers.

  • AES/EBU differential loop-through input
  • 20- or 24-bit modes
  • Wide range of output modes (swap, invert, sum, tones, silence)
  • 32 to 48 kHz sampling rate with indicators at 32, 44.1, and 48 kHz
  • Terminal block output via adapter 8900CTB-04
  • Independent output level control from +14 dBu to +24 dBu
  • >110 dB "A weighted" signal-to-noise ratio
  • Housed in the same frame with other 8900-V audio and video modules
  • Remote control via Ethernet frame interface

Supported Frame Types
GeckoFlex with 8900V-R GeckoFlex Video rear module, Gecko video frames: 8900TX-V, 8900TF-V, 8900TFN-V


Power Rating
3.1 Watts – single slot


Input
Type: AES-3id-1992 – unbalanced
Number of inputs: One differential loop-through
Connector: 75Ω BNC
Common mode range: ±12 V pk DC –20 kHz
Input signal level range: 200 mV to 12 Vp-p
Sampling rates: Any rate from 32 to 48 kHz with indicators at 32, 44.1, and 48 kHz
Input return loss: >15 dB (100 kHz to 10 MHz)
Maximum jitter: <200 ps RMS


Output
Number of outputs: One stereo pair
Output level: +14 to +24 dBu max
Output impedance: 50Ω single-ended, 100Ω differential
Connector type: Terminal block through 8900CTB-04 BNC adapter board


Performance
Signal/noise ratio:

  • >107 dB unweighted 22 kHz filter
  • >110 dB "A" weighted

Frequency response: ±0.1 dB 20 Hz – 20 kHz @ 48 kHz sampling
THD + noise: <0.004% @ 24 dBu
Quantization: 20- or 24-bit
Interchannel crosstalk: <–100 dB, 20 Hz to 20 kHz
DC offset: <±50 mV
Operating temperature: 0° to 45°C
Humidity: 10% to 90% non-condensing
Non-operating temperature: –10° to 70°C


Indicators and Controls
Indicators: Input data rates, power, de-emphasis, fault, remote override communication active, configuration
Controls: Operation modes (normal, channel swap, phase invert, channel sum, tone), output gain
Remote: All Indicators and controls via frame Ethernet except gain

March 28, 2013
San Francisco, Calif., March 28, 2013 — Iglesia Cristiana Casa de Dios—the largest and fastest growing church in Guatemala—has selected Grass Valley® Live Production solutions to outfit its new church in order to produce high-quality programs for church members and viewers. Daily, Iglesia Cristiana Casa de Dios airs Latin America's number one rated Christian program on TBN's "Enlace" as well as Daystar's "Casa de Dios" and "Noches de Gloria". The programs are seen throughout the U.S., Central and South America, and parts of Europe.
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 8920DAC Audio D-To-A Converter Data Sheet

Posted Nov 17 2010 (MOD-4017M-5 8920DAC) File Size: 226.3 KB

Read more »

section bottom stripe
See more related documents
© 2013 Grass Valley USA, LLC. All rights reserved. Grass Valley is a registered trademark of GVBB Holdings S.a.r.l.