Grass valley 8981NR DATASHEET
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8900V-R
Video
Output
Video
Input
Video
Output
Not
Used
Not
Used
Not
Used
Not
Used
Not
Used
EDH
Detection
Test
Generator s
SDI
Output
Micro-
processor
Control
LED
Framestor e
Ethernet
Noise
Filters
Local
Controls
SDI Input
8981NR 270 Mb/s SDI Noise Reducer Module
45
Key Features
10-bit signal processing•
Recursion filter for random noise •
reduction
Horizontal median filtering for impulse •
noise reduction
Split screen mode with internal noise •
generator for setup purposes
Video processing adjustments including •
video gain and black level
Setting stored in non-volatile memory•
Output EDH generated•
VANC pass or blank•
Passes all HANC data •
The 8981NR is a 270 Mb/s SDI component
digital noise reducer module. This module
incorporates two different noise reduction
methods that are targeted at different sources
of noise. A recursive filter is effective for low
levels of wide-band (random) variations that
have no frame-to-frame correlation, and a
horizontal median filter is very effective for
impulse noise.
Typical applications include reduction of
random noise generated during analog
transmission or digital processing. Signals
from various sources with varying amounts
of noise resulting from poor transmission and
processing will greatly benefit from using this
product by reducing the bandwidth required
later during the MPEG compression process.
Specifications
Supported Frame Types
GeckoFlex with 8900V-R GeckoFlex Video rear module,
Gecko video frames: 8900TX-V, 8900TF-V, 8900TFN-V
Power Rating
4.5 Watts – single slot
SDI Input
Connector: BNC
Input impedance: 75Ω terminating
Signal type: SMPTE 259M serial 10-bit 4:2:2
component video
Return loss: >15 dB up to 270 MHz
SDI Output
Connector: 4X BNC
Signal type: SMPTE 259M
Output impedance: 75Ω
Return loss: >15 dB, 5 to 270 MHz
Error checking: EDH embedded
Environmental Conditions
Operating ambient temperature (frame):
0° to 45°C
Operating humidity range: 0% to 90% noncondensing
Ordering Information
This module can be mounted in a GeckoFlex
frame when ordered with the 8900V-R GeckoFlex
Video rear module.
8981NR
270 Mb/s SDI video noise reducer module
For detailed specifications, installation, and setup
instructions see:
www.grassvalley.com/docs/modular
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