Ensemble Designs BrightEye 2 Handleiding


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This user guide provides detailed information for using the BrightEye™2
Analog to Digital Converter.
The information in this user guide is organized into the following sections:
Product Overview
Functional Description
Applications
Rear Connections
Operation
Front Panel Controls and Indicators
Warranty and Factory Service
Specifications
Glossary
BrightEye-1
Analog to Digital
Converter
User Guide
Revision 5 SW v1.0.7
EN S E M B L E
D E S I G N S
BrightEye 2 Analog to Digital Converter
PRODUCT OVERVIEW
The BrightEye 2 Converter is a self-contained unit that provides uncompromised
analog to digital conversion of component and composite video. Analog inputs are
digitized at 12 bits of resolution with 4x oversampling. Composite video is
processed through an adaptive comb filter decoder. PAL and NTSC input
detection is automatic. Signal I/O and power is supplied to the rear of the unit. It
is powered by a modular style power supply.
Supporting both Beta and SMPTE component, composite and Y/C formats,
BrightEye 2 adapts to many conversion needs. Use BrightEye 2 to digitize analog
VTR and camera outputs for example.
Front panel controls permit the user to monitor input status, select input type,
and adjust video gain. Control and monitoring can also be done using the
BrightEye Control application from a personal computer with USB support.
A glossary of commonly used video terms is provided at the end of this guide.
FUNCTIONAL DESCRIPTION
The BrightEye 2 converter can perform analog to digital conversion on a variety
of television signal formats, in both the 525/60Hz (NTSC) and 625/50Hz (PAL)
line standards. The converter supports the NTSC and PAL composite standards,
Y/C, and color difference analog component formats.
Analog composite video is fed to the converter on a single BNC connector at 1 volt
p-p levels (sync tip to peak white). The analog signal is clamped (DC restored)
and digitized. This digital representation of the original signal is decoded into
luminance and color difference component form using an adaptive comb filter.
Component video inputs in the SMPTE or Beta formats of Luminance (Y), and
color difference (R-Y or Pr, and B-Y or Pb) enter the converter through three BNC
connectors. They are digitized and clamped and then gain-scaled to component
digital levels.
In all cases of analog video input, the resultant digital signal conforms to the
ITU-R 601 standard. This is a 4:2:2 component digital signal with a 27 MHz
sampling rate. The overall amplitude of the signal can be adjusted with the gain
control.
The output is serialized as a 270 Mb/s bitstream and feeds the electrical SDI BNC
output connector.
BrightEye 2 is powered by a 12 volt DC universal power supply. This power
supply can accept an input voltage between 90 and 230 volts, at 50 or 60 Hz.
It uses a standard IEC line cord and can be used anywhere in the world. It is
normal for the converter to be quite warm to the touch when operating.
BrightEye-2
APPLICATIONS
BrightEye 2 is ideal for situations requiring analog to SDI video conversion. In
the example shown below, the output of a component analog VTR is fed to the
input of a digital production switcher.
BrightEye-3
12-bit
Video A-D
Converter
and
Decoder
SDI Out
Cpst, Y In
Pr, C In
Pb In
Source
Select
Gain Adjust
Front Panel or BrightEye PC
Controls
Serializer
Processing
Controls
Proc
Amp
BrightEye 2 Functional Block Diagram
BrightEye 2
VTR
Digital Production
Switcher
SDI Out
Pr In
Pb In
Y In
BrightEye 2 Feeding a Digital Production Switcher


Product specificaties

Merk: Ensemble Designs
Categorie: Niet gecategoriseerd
Model: BrightEye 2

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