Ensemble Designs BrightEye 76, BrightEye75 User Manual
BrightEye 76 - Page 1
This user guide provides detailed information for using the BrightEye 76
HD/SD Analog to Digital Video Converter and Analog Audio Embedder with
Optical Output.
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
BrightEye 76
HD/SD Analog to Digital
Video Converter with
Optical Output
User Guide
Revision 2.1 SW v1.0.7
ENSEMBLE
D E
S
I G N
S
TM
BrightEye 76 HD/SD Analog to Digital Converter With Optical Output
BrightEye 76 - Page 2
PRODUCT OVERVIEW
BrightEye 76 converts standard definition analog component or composite video,
or high definition analog component video to SDI on an optical output 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 76 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 PC and Mac
Control applications provide 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. 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 then passed 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 optical SDI output on the rear of the unit.
BrightEye 76 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.
t
BrightEye 76 Functional Block Diagram, Potrait View
Analog HD or SD
Pr, R In
C, Pb, B In
Cpst, Y, G In
Reference In
2 Channel
Analog Audio In
Analog SD In Yields SD SDI Out
Analog HD In Yields HD SDI Out
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 Optical Ou
(Follows Input)
BrightEye 76 - Page 3
HD or SD SDI Optical Out
BrightEye 76 Functional Block Diagram, Landscape View
(Follows Input)
Serializer
Embedder
BrightEye 76
TM
14 bit
A to D
Proc
TBC/
Converter
Amp
Frame Sync
and
Decoder
Mixer/Shuer
A to D
2 Channel
2 Channel
Analog SD In Yields SD SDI Out
Analog Audio In
Analog HD In Yields HD SDI Out
Pr, R In
Analog HD or SD
C, Pb, B In
Cpst, Y, G In
Reference In
BrightEye 76 HD/SD Analog to Digital Converter With Optical Output
BrightEye 76 - Page 4
APPLICATIONS
The BrightEye 76 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 76. These are then digitized and
time-base corrected by noise-tolerant tracking circuitry.
The example below shows a three-camera, live remote setup. Full bandwidth
analog video from an HD camera is fed to a BrightEye 76 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 Remote Truck/OB Van and output on
fiber.
The analog audio from the cameras enters the BrightEye 76 two-channel
A-to-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 76 Signal Ingest Application for HD Signals
Analog HD Video
Y
1
2
3
Pr
Pb
Y
Pr
Pb
Y
Pr
Pb
BrightEye 76
Ref In
BrightEye 76
Ref In
BrightEye 76
Ref In
HD SDI
HD SDI
HD SDI
Remote Truck/
Optical HD SDI
OB Van
BrightEye 76 - Page 5
REAR CONNECTORS
All connections to the BrightEye 76 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. Use the locking ring to secure it.
USB Connector
The USB connector is used to provide more comprehensive control, diagnostics,
and upgrades to the converter from a personal computer. Use the BrightEye PC or
Mac 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 76 Rear Connectors
BrightEye 76
TM
Ch 1 Ch 2
Push in to releasePin 1
G
-
-
G+
+
BrightEye 76 HD/SD Analog to Digital Converter With Optical Output
BrightEye 76 - Page 6
Unbalanced Audio to a RCA Phono Connection – to connect the BrightEye 76
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 Optical Out
This SC connector outputs an 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 (SD only)
• Beta or SMPTE – Pb input
• RGB – B input
Cpst, Y, G In
This BNC accepts the following signal formats:
• Composite (Cpst) – analog composite input (SD only)
• S-Video (composite) – Y input (SD only)
• 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 76 - Page 7
OPERATION
Control and operation of the BrightEye 76 unit is performed from the front panel
or remotely from a networked PC with the BrightEye PC or Mac 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.
Laser
Illuminates green when an optical signal is detected on the HD/SD Optical
Out connector. Illuminates red if a failure is detected on the optical output.
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.
BrightEye 76 Front Panel
NOTE:
BrightEye 76
TM
BrightEye 76 HD/SD Analog to Digital Converter With Optical Output
BrightEye 76 - Page 8
Gain
Illuminates green when gain is set to its nominal or unity setting, or red
when set to other than unity.
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.
Vid Gain
This control adjusts the gain of the analog video signals of the converter. The
right arrow increases the gain; the left arrow decreases it. The Vid Gain
indicator illuminates green when the gain is set to its nominal or unity setting.
NOTE:
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