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:
•ProductOverview
•FunctionalDescription
•Applications
•RearConnectors
•Operation
• Front Panel Controls and Indicators
• Using the BrightEye Control Application
•WarrantyandFactoryService
•Specifications
•Glossary
TM
BrightEye 75
HD/SD Analog to Digital
Video Converter and Analog
Audio Embedder
User Guide
Revision 2.1 SW v1.0.7
ENSEMBLE
D E S IG 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.
HD or SD SDI Out
(Follows Input)
Pr, R In
C, Pb, B In
Cpst, Y, G In
Serializer
Embedder
Proc
Amp
TBC/
Frame Sync
14 bit
A to D
Converter
and
Decoder
Reference In
Analog HD or SD SDI
2 Channel
A to D
2 Channel
Analog Audio In
Mixer/Shuer
BrightEye 75 Functional Block Diagram, Portrait View

TM
BrightEye 75
BrightEye 75 - Page 3
HD or SD SDI Out
(Follows Input)
Pr, R In
C, Pb, B In
Cpst, Y, G In
Serializer
Embedder
Proc
Amp
TBC/
Frame Sync
14 bit
A to D
Converter
and
Decoder
Reference In
Analog HD or SD SDI
2 Channel
A to D
2 Channel
Analog Audio In
Mixer/Shuer
BrightEye 75 Functional Block Diagram, Landscape View

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
AtoDconverter.Adjustmentsforaudiomixing,audiolevels,andchannel
shuffling can then be applied to the audio before it is embedded into the SDI
output signal and fed to air.
Production
Switcher
BrightEye 75
BrightEye 75
BrightEye 75
HD SDI
HD SDI
HD SDI
Analog HD Video
HD SDI
To Air
Ref In
Ref In
Ref In
Ref In
Y
Pr
Pb
Y
Pr
Pb
Y
Pr
Pb
1
2
3
BrightEye 75 Signal Ingest Application for HD Signals

TM
BrightEye 75
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 applica-
tion 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 connect audio to this connector, strip the audio wire to about 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
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).

TM
BrightEye 75
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 indica-
tors 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 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:

TM
BrightEye 75
BrightEye 75 - Page 9
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.
Setting Vid Gain to unity ensures correct analog output levels from an analog
input source that is at proper level itself. The Vid Gain indicator illuminates red
if the control is adjusted higher or lower than its nominal setting. To reset gain to
its nominal setting (green) press both arrows simultaneously.
Audio
Output level and the status of audio channels 1 and 2 are indicated by the state
the VU and Gain indicators:
VU
This indicator illuminates red when the audio level exceeds the headroom
level set with the Peak Indicator control in BrightEye PC or Mac.
Additionally, the VU indicator illuminates yellow when the output is above
0 VU, and illuminates green when the output is above -20 VU. When the
output level is below -20 VU, the indicator does not illuminate.
Gain
This indicator Illuminates green when output gain is set to its nominal or
unity value. It illuminates red when gain is set to other than unity.

BrightEye 75 HD/SD Analog to Digital Converter and Analog Audio Embedder
BrightEye 75 - Page 10
USING THE BRIGHTEYE CONTROL APPLICATION
The BrightEye PC and BrightEye Mac applications included on CD-ROM are
designed to allow you to configure and control the BrightEye 75 from a personal
computer. Installation and instructions for using this software application are
given in the PDF manual on disk.
If the BrightEye 75 is connected to a computer running this software, the
following menus are available for controlling and monitoring the unit.
Input Menu
•InputPres– indicates the status of the video input (None, SD 525, SD 625,
HD 525, or HD 625.
•InputSel– select the type of input signal to the unit from the pulldown as
Composite, Y/C, RGB, SMPTE,Beta, or Bars.
•AnalogSetup– set to On if setup is present on the analog input, or Off if
no setup is present.
•RefStatus– indicates the status of a reference video presence
(No Reference or Ref Present).

TM
BrightEye 75
BrightEye 75 - Page 11
Proc Menu
Use the Proc Menu to adjust the parameters of the analog video input signal.
The Proc menu provides the following video adjustments:
•Gain– adjust the overall gain of the signal from 0 to 150%.
•Chroma– adjust the chroma gain of the signal from 0 to 150%.
•Pedestal– adjust the pedestal level of the signal +/- 5 IRE.
•Hue– adjust the hue of the signal +/- 180 degrees.
To set a value for any of these parameters, adjust the slider, click the right or left
Arrow button, or type a value into the appropriate field.
To set a parameter to its nominal setting, click the Default button.

BrightEye 75 HD/SD Analog to Digital Converter and Analog Audio Embedder
BrightEye 75 - Page 12
Mixer Menu
Use the Mixer Menu to adjust the parameters of the embedded audio input signal.
•Output1– provides peak/VU status for output channel 1. The Peak/VU
indicator illuminates red when the audio level exceeds the headroom level
set with the Peak Indicator control in the Config menu. Additionally, the
indicator illuminates yellow when the output level exceeds 0 VU, or illumi-
nates green when the output is above -20 VU. When the output level is
below -20 VU, the indicator does not illuminate.
•Output2– provides peak/VU status output channel 2. The Peak/VU
indicator illuminates red when the audio level exceeds the headroom level
set with the Peak Indicator control in the Config menu. Additionally, the
indicator illuminates yellow when the output level exceeds 0 VU, or illumi-
nates green when the output is above -20 VU. When the output level is
below -20 VU, the indicator does not illuminate.
•Input Ch 1 – assign Input Channel 1 to the desired output bus or tie it to
Channel 2. Set the input level using the slider or by entering a number in
the dB field and pressing the Enter key on your PC.
•Input Ch 2 – assign Input Channel 2 to the desired output bus or tie it to
Channel 1. Set the input level using the slider or by entering a number in
the dB field and pressing the Enter key on your PC.
Clicking Tie on either channel ties the two slider controls together so that their
output levels can be adjusted in tandem.
Click the Default button to return to the default value.
Click the Invert button to invert the phase of the audio content.

TM
BrightEye 75
BrightEye 75 - Page 13
Timing Menu
Use the Timing Menu to set the parameters of the TBC and Frame Sync
functions. The timing function operates in one of three modes:
1. When the Frame Sync control is turned On and a proper reference signal
is connected to the Ref In BNC, the video output of the unit is synchronous
and locked to the external reference. The output may be timed with respect
to the Ref In using the timing controls. In this case, the unit will accept
asynchronous video and time base errors will be corrected.
2. When the Frame Sync control is turned On and no reference signal is
connected, the unit acts as a time base corrector only. The output is not syn-
chronous to any reference, including the input. This mode allows a noisy
input signal to be time base corrected for a clean, stable output.
3. When the Frame Sync control is turned Off, any reference signal to the
Ref In BNC is ignored. The video input is synchronous to the video output
when a nearly perfect, clean video input signal is present (no time base cor-
rection required).
The following timing control is available when the Frame Sync function is On:
•Timing– adjust the vertical and horizontal timing of the signal with
respect to the reference input. Click the Default button to return to the
default value.
Use the following control to enable the Frame Sync function:
•FrameSync– set the Frame Sync function to On to genlock to the
reference input to the module, or to Off for no Frame Sync.

BrightEye 75 HD/SD Analog to Digital Converter and Analog Audio Embedder
BrightEye 75 - Page 14
Config Menu
Use the Config menu to set the following output conditions for the output signal:
•SignalMute– select the condition for muting the output signal to
No Muting, Mute On Noise, or Freeze on Noise.
•AnalogSetup– set to On if setup is present on the analog input, or Off if
no setup is present.
•VBlanking– set the vertical blanking to Narrow (NTSC: lines 1-9,
PAL: lines 1-6) or Wide (NTSC: lines 1-20, PAL: lines 1-22).
•CombMode– set the comb filtering to Comb On or Comb Off.
•PeakIndicator– selects the amount of headroom used in determining
peak indication. Chose Clipping,2 dB Headroom,4 dB Headroom,
6 dB Headroom, 8 dB Headroom, or 10 dB Headroom.
•DigRefLevel– selects the digital reference output level. Choose -20 dBFS or
-18 dBFS.
•AnlgRefLevel– selects the analog audio input level for embedding.
Choose -10 dBu or +4 dBu.

TM
BrightEye 75
BrightEye 75 - Page 15
Trim Menu
The Trim menu provides an advanced level of adjustment to match your BE75 to
a particular source if needed. Use the Trim menu to fine tune the color
parameters of the output signal up or down, positive or negative. The values
shown below are typical, though each BE75 may vary.
•When input is Cpst, adjust Composite Trim and Saturation Trim
from -100 to 100.
•When input is Y/C, adjust Composite Trim and Saturation Trim
from -100 to 100.
•When input is RGB, adjust CAV Y/C Trim, CAV Cr/R Trim and
CAV Cb/B Trim from -100 to 100.
•When input is SMPTE, adjust CAV Y/C Trim, CAV Cr/R Trim and
CAV Cb/B Trim from -100 to 100.
•When input is BETA, adjust CAV Y/C Trim, CAV Cr/R Trim and
CAV Cb/B Trim from -100 to 100.

BrightEye 75 HD/SD Analog to Digital Converter and Analog Audio Embedder
BrightEye 75 - Page 16
WARRANTY AND FACTORY SERVICE
Warranty
Ensemble Designs, Inc. warrants this product to be free from defect in material
and workmanship for a period of 5 years from the date of delivery. During this 5
year warranty period, Ensemble Designs, Inc. will repair any defective units at
Ensemble’s expense if the unit should be determined to be defective after con-
sultation with a factory technician.
This warranty is not transferable. Any implied warranties expire at the expiration
date of this warranty.
This warranty does not cover a defect that has resulted from improper or unreasonable
use or maintenance as determined by us. This warranty is void if there is any
attempt to dissemble or adjust factory set presets without factory authorization.
Factory Service
If you require service (under warranty or not), please contact Ensemble Designs
and ask for Customer Service before you return the unit. This will allow the
service technician to provide any other suggestions for identifying the problem
and recommend possible solutions.
You m ay al so re fer t o the t ech nic al su ppo rt se cti on of t he En sem bl e we b s it e fo r
the latest information on your equipment at the URL below:
http://www.ensembledesigns.com/support
If you return equipment for repair, please get a Return Material Authorization
Number (RMA) from the factory first.
Ship the product and a written description of the problem to:
Ensemble Designs, Inc.
Attention: Customer Service RMA #####
870 Gold Flat Rd.
Nevada City, CA 95959 USA
[phone]
Fax: [phone]
[email protected]
http://www.ensembledesigns.com
Be sure to put your RMA number on the outside of the box.

TM
BrightEye 75
BrightEye 75 - Page 17
SPECIFICATIONS
Analog Video Input
Number One
Signal Type HD or SD: Y, Pr, Pb (SMPTE or Beta levels)
HD or SD: Analog Component RGB (sync on green)
Analog Composite PAL or NTSC
Analog S-Video PAL or NTSC
Resolution Digitized at 12 bits
Impedance 75 1
Return Loss > 40 dB
Input DC +/- 1 volt DC
Input Hum < 100 mV
Analog Audio Inputs
Number Two
Type Balanced
Impedance > 15K 1
Max Input Level 24 dBu
CMRR > 60 dB, 20 Hz to 10 KHz
Quantization 24 bits, 128x oversampled
Sample Rate 48 KHz
Reference Level -10 dBu or + 4 dBu
Frequency Response ± 0.1 dB, 20 Hz to 20 KHz
Crosstalk < 106 dB
Dynamic Range > 106 dB
Serial Digital Output
Number One
Type Follows input standard
HD Serial Digital 1.485 Gb/s
SMPTE 274M, 292M or 296M or
SD Serial Digital
270Mb/s SMPTE 259M-C
Impedance 75 1
Return Loss > 15 dB
Max Cable Length 100 meters for HD
300 meters for SD
(Belden 1694A)
Analog Video to SDI Performance
Bit Resolution 14-bit input quantization, 4x oversampling
Decoding Fully adaptive comb filter
K Factors > 1%
Signal to Noise > 64 dB weighted
Freq Response ± 0.1 dB, 0 to 5.5 MHz in SD
±0.1dB,0to12MHz; ±0.5dB,12to30MHzinHD

BrightEye 75 HD/SD Analog to Digital Converter and Analog Audio Embedder
BrightEye 75 - Page 18
HD Standards Supported
1080i (SMPTE 274M -4,5,6) 50, 59.94 or 60 Hz
720p (SMPTE 296M -1,2,3) 50, 59.94 or 60 Hz
1080p (SMPTE 274M -9,10,11) 23.98, 24, 25 Hz
1080sF (RP211 -14,15,16) 23.98, 24, 25 Hz
Embedded Output (In Serial Output)
Group Assign One of four groups
Channels Two
Bit Depth 24 Bit
Reference Input
Number One
Signal Type 1 V p-p Composite Video, PAL or NTSC
Impedance 75 1
Return Loss > 40 dB
General Specifications
Size 5.625” W x 0.8 “ H x 5.5” D
(143 mm x 20 mm x 140 mm)
including connectors
Weight 15 oz
Power 12 volts, 6 watts
(100-230 VAC modular power supply not included)
Temperature Range 0 to 40° C ambient
Relative Humidity 0 to 95%, non-condensing
Due to ongoing product development, all specifications subject to change.

TM
BrightEye 75
BrightEye 75 - Page 19
BRIGHTEYE POWER SUPPLY INFORMATION
Below is a list of power supplies and optional items that may have come with
your BrightEye:
BEPS BrightEye Individual Power Supply
BEPS-RP Redundant Power Supply for Individual and Spider Power Supply
BEPS6 Spider Power Supply powers 6 single high BrightEyes or 3 double
high BrightEyes
BERKMT BrightEye Rack Mount (holds 3 to 6 BrightEyes) 1RU high,
6"/152.4 mm deep, 3 lbs/1.4 kg
BEBP BrightEye Blank Panel (single high, for empty slots in Rack Mount)
BEBPD BrightEye Blank Panel (double high, for empty slots in Rack Mount)
5082-I 1 Port AES 110 Ohm Adapter
BEAC Analog Audio Breakout Cable with Pigtail End
PHX15 Breakout Adapter with Phoenix Terminals

BrightEye 75 HD/SD Analog to Digital Converter and Analog Audio Embedder
BrightEye 75 - Page 20
GLOSSARY
This is a brief glossary of commonly used terms associated with this product.
AES/EBU
The digital audio standard defined as a joint effort of the Audio Engineering
Society and the European Broadcast Union. AES/EBU or AES3 describes a serial
bitstream that carries two audio channels, thus an AES stream is a stereo pair.
The AES/EBU standard covers a wide range of sample rates and quantizations
(bit depths.) In television systems, these will generally be 48 KHz and either 20
or 24 bits.
Bandwidth
Strictly speaking, this refers to the range of frequencies (i.e. the width of the
band of frequency) used by a signal, or carried by a transmission channel.
Generally, wider bandwidth will carry and reproduce a signal with greater
fidelity and accuracy.
Beta
Sony Beta SP video tape machines use an analog component format that is
similar to SMPTE, but differs in the amplitude of the color difference signals. It
may also carry setup on the luminance channel.
Blanking
The Horizontal and Vertical blanking intervals of a television signal refer to the
time periods between lines and between fields. No picture information is trans-
mitted during these times, which are required in CRT displays to allow the
electron beam to be repositioned for the start of the next line or field. They are
also used to carry synchronizing pulses which are used in transmission and
recovery of the image. Although some of these needs are disappearing, the
intervals themselves are retained for compatibility purposes. They have turned
out to be very useful for the transmission of additional content, such as teletext
and embedded audio.
CAV
Component Analog Video. This is a convenient shorthand form, but it is subject to
confusion. It is sometimes used to mean ONLY color difference component
formats (SMPTE or Beta), and other times to include RGB format. In any case, a
CAV signal will always require 3 connectors – either Y/R-Y/B-Y, or R/G/B.
Checkfield
ACheckfieldsignalisaspecialtestsignalthatstressesparticularaspectsof
serial digital transmission. The performance of the Phase Locked-Loops (PLLs) in
an SDI receiver must be able to tolerate long runs of 0’s and 1’s. Under normal
conditions, only very short runs of these are produced due to a scrambling
algorithm that is used. The Checkfield, also referred to as the Pathological test
signal, will “undo” the scrambling and cause extremely long runs to occur. This
test signal is very useful for testing transmission paths.