Ensemble Designs BrightEye 75 User Manual
BrightEye 75 - Page 1
This user guide provides detailed information for using the BrightEye 75
HD/SD Analog to Digital Video Converter and Analog Audio Embedder with TBC.
The information is organized into the following sections:
•Product Overview
•Functional Description
•Applications
•Rear Connectors
•Operation
• Front Panel Controls and Indicators
• Using the BrightEye Control Application
•Warranty and Factory Service
•Specifications
•Glossary
TM
HD/SD Analog to Digital
Video Converter and Analog
Audio Embedder
User Guide
Revision 2.1 SW v1.0.7
BrightEye 75
ENSEMBLE
D E
S
I G N
S
BrightEye 75 HD/SD Analog to Digital Converter and Analog Audio Embedder
BrightEye 75 - Page 2
PRODUCT OVERVIEW
BrightEye 75 converts standard definition analog component or composite video,
or high definition analog component video to SDI with simultaneous conversion of
two channels of audio and embedding. A TBC/Frame Sync is a standard feature
and allows the BrightEye to work with any type of video input.
BrightEye 75 is versatile enough to handle applications from broadcasting to
desktop video with sources such as VTRs and incoming satellite feeds.
Basic controls are accessed on the front panel. The BrightEye Control application
provides access to video proc functions, input and output, and built-in audio mixer
controls that are not available from the front panel.
FUNCTIONAL DESCRIPTION
As shown in the functional block diagram below, analog video is converted at
14 bits of resolution and digitally decoded to YCrCb components (601). The signal
is then time base corrected and frame synchronized to the reference input. Proc
amp adjustments are provided for the converted video.
The audio is converted to digital and then passes through the built-in 2-channel
mixer with shuffle and level control.
The video and audio signals are joined in the embedder. This embedded signal
passes through a serializer to an SDI output on the rear of the unit.
BrightEye 75 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 Hertz.
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 75 Functional Block Diagram, Portrait View
Analog HD or SD SDI
Pr, R In
C, Pb, B In
Cpst, Y, G In
Reference In
2 Channel
Analog Audio In
14 bit
A to D
Converter
and
Decoder
2 Channel
A to D
TBC/
Frame Sync
Proc
Amp
Mixer/Shuer
Embedder
Serializer
HD or SD SDI Out
(Follows Input)
BrightEye 75 - Page 3
HD or SD SDI Out
BrightEye 75 Functional Block Diagram, Landscape View
(Follows Input)
Serializer
Embedder
BrightEye 75
TM
14 bit
A to D
Proc
TBC/
Frame Sync
and
Converter
Amp
Mixer/Shuer
A to D
2 Channel
Decoder
2 Channel
Analog Audio In
Analog HD or SD SDI
Pr, R In
C, Pb, B In
Cpst, Y, G In
Reference In
BrightEye 75 HD/SD Analog to Digital Converter and Analog Audio Embedder
BrightEye 75 - Page 4
APPLICATIONS
The BrightEye 75 is well-suited to applications using HD Cameras or other
devices with analog I/O. The built-in TBC/Frame Synchronizer allows you to feed
asynchronous or noisy signals to the BrightEye 75. These are then digitized and
time-base corrected by noise-tolerant tracking circuitry.
The example below shows a three-camera, live studio setup. Full bandwidth
analog video from an HD camera is fed to a BrightEye 75 and converted to HD SDI
digital video. The signal is time base corrected and frame synchronized to the
reference input. The signal is then sent to a Production Switcher and out to live
broadcast.
The analog audio from the cameras enters the BrightEye 75 two-channel
Ato D converter. Adjustments for audio mixing, audio levels, and channel
shuffling can then be applied to the audio before it is embedded into the SDI
output signal and fed to air.
BrightEye 75 Signal Ingest Application for HD Signals
Analog HD Video
Y
1
2
3
Pr
Pb
Y
Pr
Pb
Y
Pr
Pb
BrightEye 75
Ref In
BrightEye 75
Ref In
BrightEye 75
Ref In
HD SDI
HD SDI
HD SDI
Production
Switcher
HD SDI
To Air
Ref In
BrightEye 75 - Page 5
REAR CONNECTORS
All connections to the BrightEye 75 converter are made on the rear of the unit.
Refer to the illustration below.
Power Connection
Connect a modular power supply to the 12 volt DC power input connection on the
far left of the unit. Use the locking ring to secure it.
USB Connector
The USB connector is used to provide more comprehensive control, diagnostics,
and upgrades to the unit from a PC or Mac. Use the BrightEye Control application included on CD-ROM to make adjustments as described in the OPERATION
section of this user guide.
Audio In
This 6-pin Phoenix connector provides two channels of analog audio input. Wiring
is done by inserting the connector provided with the unit. The pinouts are shown
in the diagram below.
To co nn ec t aud io to th is co nn ec to r, st ri p the au di o wir e to ab ou t 3/8 ” (8 mm) .
Solder tinning is not required. Push the wire into the opening at the bottom of
the connector to seat the connection. This will snap the wire into place. To remove
the wire, push in the pin above the connection with a small pointed tool. This will
release the wire from the connector.
Balanced Analog Audio Connection – to connect the audio input to an audio
XLR connector, connect the pins as follows:
• Attach Ground from Pin 1 of the Audio In to Pin 1 of the XLR.
• Attach the + (plus) signal from Pin 3 of the Audio In to Pin 2 of the XLR.
• Attach the – (minus) signal from Pin 2 of the Audio In to Pin 3 of the XLR.
BrightEye 75 Rear Connectors
BrightEye 75
TM
Ch 1 Ch 2
Push in to releasePin 1
G
-
-
G+
+
BrightEye 75 HD/SD Analog to Digital Converter and Analog Audio Embedder
BrightEye 75 - Page 6
Unbalanced Audio to a RCA Phono Connection – to connect the BrightEye 75
audio input to a consumer audio connector such as an RCA phono jack, connect
the pins as follows:
• Attach Ground from Pin 1 of the Audio In to the shell, Shield or Ground of
the RCA Phono jack.
• Attach the + (plus) signal from Pin 3 of the Audio In to the center pin of the
RCA Phono jack.
• Attach the – (minus) signal from Pin 2 of the Audio In to the shell, Shield or
Ground of the RCA Phono jack.
Input/Output BNCs
There are five rear BNC connectors used as inputs and outputs as follows:
HD/SD Out
This BNC outputs a timed SDI video signal with embedded audio.
Pr, R In
This BNC accepts the following signal formats:
• Beta or SMPTE – Pr (Y-R) input
• RGB – R input
C, Pb, B In
This BNC accepts the following signal formats:
• S-Video (composite) – C input
• Beta or SMPTE – Pb input
• RGB – B input
Cpst, Y, G In
This BNC accepts the following signal formats:
• Composite (Cpst) – analog composite input
• S-Video (composite) – Y input
• RGB – G input
Ref In
This BNC accepts an analog composite video signal which is used as the genlock
and timing reference for the internal TBC/Frame Synchronizer. Typically the
reference signal is Color Black or Color Bars fed from a master sync generator
(such as the BrightEye 55).
BrightEye 75 - Page 7
OPERATION
Control and operation of the BrightEye 75 unit is performed from the front panel
or remotely from a networked PC with the BrightEye Control application.
Some control settings are only available with BrightEye PC or Mac. These parameters
cannot be monitored or controlled from the front panel.
Front Panel Controls and Indicators
The front panel of the converter, shown below, provides status and control indicators for the module.
STATUS INDICATORS
The following status indicators are provided on the front panel:
In
Illuminates green when a valid analog video signal in the currently selected
format is detected on the corresponding BNC connector.
Ref (Reference)
Illuminates green when a valid NTSC or PAL reference is detected on the rear
panel Ref In BNC connector.
Source Select
The currently selected video input format illuminates green.
TBC
Illuminates green when the TBC is enabled.
Vid Gain
Illuminates green when gain is set to its nominal or unity setting, or red when set
to other than unity.
Gain
Illuminates green when gain is set to its nominal or unity setting, or red when set
to other than unity.
BrightEye 75 Front Panel
NOTE:
BrightEye 75
TM
BrightEye 75 HD/SD Analog to Digital Converter and Analog Audio Embedder
BrightEye 75 - Page 8
VU
Illuminates green when gain is set to unity, red when set to other than
unity, or yellow when gain exceeds 0 VU (-20dBFS).
Pwr (Power)
Illuminates green when power is applied to the converter.
ADJUSTING PARAMETERS FROM THE FRONT PANEL
Use the Mode, Right Arrow, and Left Arrow buttons to select and adjust
parameters from the front panel.
Pressing the Mode button activates the front panel for editing and tabs between
each section of editable parameters.
Pressing the Right Arrow or Left Arrow advances the selection within a given
section of parameters, or increases (Right Arrow) or decreases (Left Arrow) the
value of a selected parameter.
The LED of an edited parameter will blink for 15 seconds, after which time its value is
stored in memory. If power is interrupted before this 15 second timeout period has
elapsed, the edited state will not be not saved.
The controls and their indicators are described below:
Source Select
Selects the video input source format from the following choices:
Cpst – NTSC or PAL Analog Composite Video
Y/C – S-Video Composite Video
RGB – Component Video in RGB format
SMPTE – Component Video in SMPTE format
Beta – Component Video in Beta format
Bars – Internal Color Bar Generator
TBC
This control turns the TBC/Frame Sync function on or off when an external
reference is present on the Ref In BNC. Use the left arrow to turn it off; use the
right arrow to turn it on. The TBC indicator illuminates green when on.
NOTE:
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