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GeckoFlex 8920ADC Analog Audio to Digital Audio Converter

The 8920ADC converts analog audio to digital audio. 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 gain control.

  • 24-bit resolution
  • Wide range of output modes (swap, invert, sum, tones)
  • AES/EBU loop-through reference input
  • 48 kHz sampling rate
  • Terminal block input via adapter for balanced analog audio input
  • Independent input level control from +12 dBu to +28 dBu
  • Remote control via Ethernet chassis I/F
Supported Chassis Types
GeckoFlex with 8900V-R GeckoFlex Video rear board, Gecko video chassis: 8900TX-V, 8900TF-V, 8900TFN-V

Power Rating
4.2 Watts – single slot

Analog Input Signal
Number of inputs: Single stereo pair
Connector type: Terminal block 8900CTB-04
Input impedance: >10 kΩ
Input level: +12 to +28 dBu
Sampling rate: 48 kHz

AES Reference Input
Signal type: AES-3id transformer coupled (does not support word clock or video)
Number of inputs: One loop-through
Input return loss: >15 dB (100 kHz to 10 MHz)
Maximum jitter: <200 ps RMS

Number of outputs: Four
Signal type: AES-3id-1992
Connector type: 75Ω BNC

Sampling rate: 48 kHz
Signal/noise ratio: >102 dB unweighted, >105 dB "A" weighted
Frequency response: ±0.05 dB 20 Hz to 20 kHz
Interchannel crosstalk: <–100 dB, 20 Hz to 20 kHz
Operating temperature: 0° to 45°C
Humidity range: 0% to 90% non-condensing

Indicators and Controls
Indicators: Input present, ref. present, power, clipping, fault, communication active
Controls: Operation modes (normal, channel swap, phase invert, channel sum, tone), input gain
Remote: All controls and indicators via Ethernet
November 25, 2013
Hillsboro, Ore., November 25, 2013 — Brazil's Canção Nova, a non-profit Catholic Community located in Cachoeira Paulista in the state of São Paulo, is upgrading its broadcast infrastructure with a range of Grass Valley® solutions including five Maestro™ branding and master control systems, five Concerto™ 64x64 routing switchers, five GeckoFlex™ signal processing systems, and six K2 Summit® servers for optimized live event workflows. The system will be live in November and span five locations.
November 12, 2013
Hillsboro, Ore., November 12, 2013 — Bank TV, a satellite broadcaster in the Ukraine, has launched a complete, end-to-end high definition (HD) news production solution from Grass Valley® to facilitate the smooth delivery of its 24/7programming. At the core of the broadcaster's new structure is GV STRATUS® nonlinear media production tools for enhanced production and a streamlined workflow. GV STRATUS is being used in tandem with EDIUS® multiformat nonlinear editing software and GV Edge™ Integrated Playout System with K2 Edge™ playout nodes for 24/7 playout. This deal with Bank TV builds upon the recent momentum generated by Grass Valley in the Ukrainian broadcast market as well as traction gained by GV STRATUS in the EMEA region.
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