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BrightEye 57
3G/HD/SD/Analog Test Signal and
Sync Pulse Generator
User Guide
Revision 1.3 SW v1.2.1
Clearly, Ensemble wants to be in the broadcast equipment business. It’s so rare anymore to find a company of this caliber that has not been gobbled up by a large corporation. They are privately held so they don’t have to please the money people. They really put their efforts into building products and working with customers.
I’m really happy with the BrightEye products and Ensemble’s service, and even more important my engineers are happy. We’ve continued to upgrade the product and add more cards. We will be rebuilding our production control room and we will use BrightEye again.
~ Don McKay, Vice President Engineering, Oregon Public Broadcasting
Who is Ensemble Designs?
By Engineers, For Engineers
In 1989, a former television station engineer who loved designing and building video equipment, decided to start a new company. He relished the idea of taking
an existing group of equipment and adding a few special pieces in order to create an even more elegant ensemble. So, he designed and built his first product and the company was born.
Focused On What You Need
As the company has grown, more former TV station engineers have joined Ensemble Designs and this wealth of practical experience fuels the company’s innovation. Everyone at the company is focused on providing the very equipment you need to complete your ensemble of video and audio gear. We offer those special pieces that tie everything together so that when combined, the whole ensemble is exactly what you need.
Notably Great Service for You
We listen to you – just tell us what you need and we’ll do our best to build it. We are completely focused on you and the equipment you need. Being privately held means we don’t have to worry about a big board of directors or anything else that might take attention away from real business. And, you can be sure that when you call a real person will answer the phone. We love this business and we’re here to stay.
Bricks and Mortar of Your Facility
The bricks and mortar of a facility include pieces like up/downconverters, audio embedders, video converters, routers, protection switches and SPGs for SD, HD and
3 Gb/s. That’s what we’re focused on, that’s all we do
– we make proven and reliable signal processing and infrastructure gear for broadcasters worldwide, for you.
BrightEye frames handle 270 Mb/s, 1.5 Gb/s and 3 Gb/s signals, audio and MPEG signals. Used worldwide in broadcast, mobile, production, and post.
We’re focused on processing gear– 3G/HD/SD/ASI video, audio and optical units.
Come on by and visit us. Drop in for lunch and a tour!
Shipped with care to television broadcasters and video facilities all over the world.
3G/HD/SD/Analog Test Signal and Sync Pulse Generator User Guide 
BrightEyeTM57
Contents
Product Overview |
5 |
Sync Generator and Test Signal Generator |
5 |
3G Support |
5 |
3G Signal Chain Options |
5 |
Outputs |
5 |
Customizable Test Patterns |
5 |
Adjustments and Controls |
5 |
Tri Level Sync |
6 |
Tone Generator Locked to Master Clock or External Reference |
6 |
Configurable Tone Generator |
6 |
Internal Timecode Generator |
6 |
Functional Description |
7 |
External House Reference or Internal Precision Standard Reference |
7 |
Temperature Compensated Oscillator |
7 |
Block Diagram |
8 |
Timecode Generator |
10 |
Outputting Timecode |
10 |
Table: Timecode Output Types and Output Connectors |
11 |
Table: SDI Output Selections and Corresponding Timecode |
12 |
Audio Generation and Routing |
13 |
Audio Generators |
13 |
Sixteen Independently Programmable Audio Channels |
13 |
Audio Embedded in the SDI Outputs |
13 |
Support for Analog and Digital Audio |
13 |
Applications |
16 |
Analog, HD SDI and Audio Reference Outputs |
16 |
Genlocked Test Signals |
17 |
Rear Connectors |
18 |
Power Connection |
18 |
USB Connector |
18 |
www.ensembledesigns.com |
BrightEye 57 |
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3G/HD/SD/Analog Test Signal and Sync Pulse Generator User Guide |
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Audio Out |
18 |
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Balanced Analog Audio Connection |
19 |
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For Unbalanced Audio to a RCA Phono Input |
19 |
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AES 1/2 Out |
19 |
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TLS Out |
19 |
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SDI Out |
19 |
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SD Composite Out |
19 |
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Ref In (Reference In) |
20 |
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Programmable Outputs |
20 |
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Module Configuration and Control |
21 |
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Front Panel Controls and Indicators |
21 |
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Status Indicators |
21 |
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Adjusting Parameters from the Front Panel |
22 |
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Using the BrightEye Control Application |
23 |
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Format Menu |
23 |
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Pattern Menu |
24 |
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SDI Out Menu |
26 |
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Cpst Out Menu |
27 |
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TLS Menu |
28 |
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Audio Menu |
29 |
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Timecode Menu |
31 |
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Aux Out Menu |
32 |
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Config Menu |
33 |
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Storage Menu |
34 |
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Troubleshooting |
35 |
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No signal output |
35 |
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Software Updating |
36 |
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Warranty and Factory Service |
36 |
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Warranty |
36 |
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Factory Service |
36 |
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Specifications |
37 |
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Glossary |
39 |
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www.ensembledesigns.com |
BrightEye 57 |
Page 4 |
3G/HD/SD/Analog Test Signal and Sync Pulse Generator User Guide |
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Product Overview
Sync Generator and Test Signal Generator
The BrightEye 57 is a genlockable sync generator and test signal generator that can be used as either a slave or master reference generator. It can lock to house reference or it can lock to its own internal precision standard. BrightEye 57 is well suited for remote trucks, post, helicopters and fly packs.
3G Support
The BrightEye 57’s 3G test signals are useful for facilities that are installing 3 Gb/s routers and signal distribution. At twice the bit rate as HD SDI, 3G can transmit 1080p (50 or 59.94) and 4:4:4 RGB signals on a single cable. BrightEye 57 is compliant with SMPTE 424M and 425M and has support for both Level A and Level B. 3G Level A is used for uncompressed 1080p 50/60 signals, useful in broadcast and satellite. 3G Level B is used for uncompressed 1080i 4:4:4 and is useful in post production.
3G Signal Chain Options
For facilities and manufacturers using 3 Gb/s video, BrightEye units can be combined to form a complete 3G signal chain. The BrightEye 57 test signal generator’s 3G output can be distributed through the BrightEye 43 3G distribution amplifier or the BrightEye 46 and BrightEye 48 E/O 3G fiber optical transmitter/receiver set. The BrightEye 72 provides a convenient way to monitor 3G signals with analog and HDMI outputs.
Outputs
The SDI Outputs 1 and 2 provide 1.5 Gb/s HD, 3 Gb/s HD or SD SDI test signals or black with embedded audio. There are also outputs for Composite, Tri Level Sync and AES digital audio. There are three userprogrammable outputs that are selectable between AES, LTC, Word clock or 6 Hz Pulse. Analog audio and AES outputs provide tone or silence.
The SDI and analog composite outputs provide simultaneously available signals including Color Black, Bars, Crosshatch, Multi-burst, and SDI Checkfield (Pathogenic). The Cyclops feature adds a motion element to the selected video test signal. An ID slate with user-programmable text can overlay the test pattern.
Customizable Test Patterns
In addition to the standard suite of test patterns, users can create custom test patterns on a computer. Transfer test patterns to the included Secure Digital flash memory card and then insert the memory card into the front of the BrightEye 57. Test patterns can include motion and an associated audio clip such as voice-over or station ID.
Note: Use Ensemble Design’s Pattern Generator software application when creating custom test patterns for the BrightEye 57. Please see the BrightEye Support page for the link to download this software. See also the Pattern Generator User Guide.
Adjustments and Controls
Many controls can be adjusted through the intuitive front panel. BrightEye Mac and BrightEye PC software (version 2.1.2 or later) provide a complete user interface for all adjustments and controls.
www.ensembledesigns.com |
BrightEye 57 |
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3G/HD/SD/Analog Test Signal and Sync Pulse Generator User Guide |
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Tri Level Sync
Tri Level Sync offers improved timing accuracy over traditional Bi-Level Sync. The analog output of a standard sync generator is Bi-Level Sync. The timing reference is the 50% point of the leading edge. The relative timing of this point shifts with changes in gain, DC reference, and frequency response.
The timing reference in Tri Level Sync is also at the 50% point of the sync pulse, but because this pulse has both the positive and negative excursions, this point is the same as the DC ground reference. This symmetry makes the signal virtually immune to time shift from gain, DC and response errors. The zero point never drifts. The zero crossing is easy to detect every time which ensures timing accuracy.
The Tri Level Sync Generator block is configured in the BrightEye Control application to one of four HD formats (1080i, 1080p, 720p, or 1080sF). The Tri Level Sync output frame rate can be selected between 23.98/50/59.94, the most commonly used family of frame rates, and 24/30/60, reserved for use with special applications such as film.
The BrightEye 57 will apply the selected TLS frame rates to specific formats and line rates as shown in the table below.
Frame Rate |
23.98/50/59.94 Hz |
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24/30/60 Hz |
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Line Rate |
NTSC |
PAL |
NTSC |
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PAL |
1080i |
59.94 |
50 |
60 |
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50 |
720p |
59.94 |
50 |
60 |
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50 |
1080p |
23.98 |
25 |
24 |
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25 |
1080sF |
23.98 |
25 |
24 |
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25 |
Tone Generator Locked to Master Clock or External Reference
The Tone Generator is also locked to the master clock or the external reference, so the 48 kHz AES output will be synchronous to the video outputs. In NTSC there are exactly 8008 audio samples in every five video frames. There will be exactly 1920 audio samples in every PAL video frame.
Configurable Tone Generator
The Tone Generator can be configured for silence, a continuous tone, or an interrupted tone which is coordinated with the Cyclops moving element. The Tone Generator feeds the Analog Audio outputs through a precision digital-to-analog converter. It feeds an AES formatter to produce a standard AES output. And finally, it is fed to an embedder (audio inserter) so that it will also be a part of the SDI outputs.
Internal Timecode Generator
The internal Timecode Generator feeds DVITC on the SDI outputs and VITC on the composite outputs. Timecode can also be selected in LTC form on the programmable Aux 1, Aux 2, and Aux 3 outputs.
www.ensembledesigns.com |
BrightEye 57 |
Page 6 |
3G/HD/SD/Analog Test Signal and Sync Pulse Generator User Guide |
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Functional Description
External House Reference or Internal Precision Standard Reference
The BrightEye 57 can lock to an external house reference or it can lock to its own internal precision standard reference.
The Ref In BNC on the rear of the unit will accept 1 V P-P PAL, NTSC, 10 MHz or Tri Level Sync as a reference. The outputs will all be synchronous relative to this reference. The overall vertical and horizontal timing of the outputs can be adjusted in the BrightEye PC or Mac Timing menu. Reference status is reported on the front of the unit and in BrightEye PC or Mac. The Composite video output will have the same ScH phase (or color framing) as the external reference.
A special case exists when simultaneously using PAL and NTSC. If the output standard for the module is PAL and an NTSC reference is connected, BrightEye 57 will lock to the reference at the fundamental clock frequency common to PAL and NTSC. This is referred to as “clock-locked.”There is no horizontal and vertical relationship but BrightEye 57 will have the same frequency accuracy as the reference and the AES audio output will be synchronous simultaneously to the BrightEye 57 PAL output and the NTSC reference. The same case is true for an NTSC standard with a PAL reference.
Temperature Compensated Oscillator
When no external reference is connected to the unit, the fundamental clock source for BrightEye 57 is taken from a temperature compensated oscillator which guarantees frequency accuracy to within 1 cycle of subcarrier (better than 0.2 ppm) across the full operating temperature range. In addition, because it does not require a crystal oven, BrightEye 57 is accurate immediately upon power up. This ensures that the BrightEye 57 outputs meet the most stringent standards.
www.ensembledesigns.com |
BrightEye 57 |
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3G/HD/SD/Analog Test Signal and Sync Pulse Generator User Guide |
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Block Diagram
Please see the functional block diagram on this page and the next page. The block diagram appears twice, first in a portrait view, then larger in a landscape view.
Genlock Input will accept: |
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525 or 625 Composite |
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Reference |
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Selection |
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Sync |
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Video/Audio |
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Separator |
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Clock |
External |
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Generation |
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Reference |
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Precision |
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Timing |
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Adjustments |
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TLS Timing |
Tri-Level |
TLS Out |
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Generator |
TLS Out |
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Black |
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VITC |
Composite |
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Composite 1 |
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Insert |
Encoder |
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Composite |
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Output Timing |
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VITC |
Composite |
Composite 2 |
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Colorbars |
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Insert |
Encoder |
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SDI Output Timing |
Black |
Audio |
DVITC |
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Gen |
Embed |
Insert |
3G/HD/SD |
SDI Out 1 |
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Serializer |
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Standard Internal |
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Test Patterns |
Test Signal |
Slate |
Audio |
DVITC |
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SDI Out 2 |
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Embed |
Insert |
Serializer |
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Timecode |
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LTC |
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Aux 1 |
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Generator |
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6 Hz Pulse |
Aux |
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Wordclock |
Output |
Aux 2 |
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Audio |
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Select |
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Generator |
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Audio |
AES |
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Aux 3 |
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Encoders |
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Generators |
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Tones and |
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Silence |
AES Encode |
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AES 1/2 |
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User Test Patterns Loaded through |
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AnalogAudio |
built-in Secure Digital Card Interface |
Stereo |
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DAC |
Outputs |
BrightEye 57 Functional Block Diagram, Portrait View
www.ensembledesigns.com |
BrightEye 57 |
Page 8 |
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Genlock Input will accept: |
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525 or 625 Composite |
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TLS |
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10 MHP 1VPe- |
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Guide |
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Separator |
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3G/HD/SD/Analog Test Signal and Sync Pulse Generator |
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TLS Timing |
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TLS Out |
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TLS Out |
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VITC |
Composite |
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Insert |
Encoder |
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Sync |
Composite |
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Output Timing |
Simple |
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VITC |
Composite |
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Selection |
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Colorbars |
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Insert |
Encoder |
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Video/Audio |
SDI Output Timing |
Black |
Audio |
DVITC |
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Embed |
Insert |
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SDI Out 1 |
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Clock |
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Serializer |
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Generation |
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Standard Internal |
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Test Patterns |
Test Signal |
Slate |
Audio |
DVITC |
3G/HD/SD |
SDI Out 2 |
Timing |
Generator |
Gen |
Embed |
Insert |
Serializer |
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Adjustments |
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Timecode |
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LTC |
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Aux 1 |
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Generator |
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6 Hz Pulse |
Aux |
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Wordclock |
Output |
Aux 2 |
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Audio |
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Select |
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Generator |
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Audio |
AES |
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Aux 3 |
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Encoders |
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Generators |
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Tones and |
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Silence |
AES Encode |
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AES 1/2 |
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User Test Patterns Loaded through |
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g |
Analo Audio |
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builte-i Securl Digitad Car Interface |
Stereo |
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DAC |
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Outputs |
BrightEye 57 Functional Block Diagram, Landscape View
Page 9
BrightEye 57
www.ensembledesigns.com
3G/HD/SD/Analog Test Signal and Sync Pulse Generator User Guide |
BrightEyeTM57 |
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Timecode Generator
The output of the BrightEye 57’s Timecode Generator is available simultaneously in multiple output types through multiple output connectors as shown in the Timecode Output Types and Output Connectors table on the next page.
The Timecode Generator will always run at the same frame rate as the main SDI outputs. If that output is in the NTSC family (29.97 or 59.94), you can configure for the choice of Drop Frame or non-Drop Frame operation. Drop Frame is necessary if you want the timecode value to track the actual time of day. By dropping specific frames, it makes up for the fact that the frame rate is just shy (by 1/1.001) of 60 Hz.
You can load the Timecode Generator with a preset value through the control system. When a BrightEye 57 powers up, the Timecode Generator starts at 0:0:0:0. Alternatively, the BrightEye 57 can read VITC present on the reference input. This timecode value will be used continuously by the BrightEye 57’s internal generator. When this option is selected, the timecode presented on the many different outputs will all match the timecode on the reference input.
Outputting Timecode
The BrightEye 57 has one timecode generator. The timecode that it produces can be output through a number of methods:
1.Routing LTC (linear timecode) to one of the Programmable Output BNCs (Aux 1, Aux 2, Aux 3). This is an analog, unbalanced, single-ended 1V P-P signal at 75 Ohm impedance.
2.Routing LTC to the Analog Audio Output connector. This will be exactly the same signal as when it is routed to a BNC, but it will be a differential (balanced) twisted pair analog signal coming out of the green Phoenix connector on the rear of the unit. Choose Timecode LTC on one of the 16 audio channel selectors, then route that audio to the Analog Audio Output connector.
3.Routing LTC as an audio channel in an AES bitstream. Choose Timecode LTC on one of the audio channel selectors, then select AES on any of the Programmable Outputs (Aux 1, Aux 2, Aux 3). There are 9 different AES choices which correspond to channel pairs 1/2, 3/4, 5/6, etc, and the choice of AES Silence. Choose the appropriate audio pair so that the particular AES stream being fed to an output includes the timecode signal.
4.Routing LTC as one of the audio signals embedded in the SDI Output stream.
5.Routing VITC (vertical interval timecode) on an analog composite output.
6.Routing DVITC (digital vertical interval timecode) on an SD SDI output.
7.Routing ATC (ancillary timecode) on an HD SDI output.
You can output an analog timecode signal with any of the methods described above. The difference between them is a choice between balanced or unbalanced. If you need to feed timecode to a device with an XLR input, you would generally want to use the balanced output. However, it is also possible to use the unbalanced output through Programmable Outputs (Aux 1, Aux 2, Aux 3) and connect it to the destination with a balancing transformer. This would be much like the DATS adaptors for AES.
The advantage of using the unbalanced output through the Programmable Outputs (Aux 1, Aux 2, Aux 3) is that you can run it through a BrightEye 41 Distribution Amplifier to make more copies.
www.ensembledesigns.com |
BrightEye 57 |
Page 10 |
3G/HD/SD/Analog Test Signal and Sync Pulse Generator User Guide 
BrightEyeTM57
Table: Timecode Output Types and Output Connectors
Timecode Output Type |
Output Connectors |
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LTC (Linear or Longitudinal |
Aux 1, Aux 2, Aux 3 |
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Timecode) single-ended |
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Note: An LTC signal is a very |
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low data rate bit stream that |
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fits within the bandwidth of an |
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analog audio signal. |
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LTC balanced |
One of the two Analog Audio Outputs (Channel 1 or Channel 2) |
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LTC embedded in an audio |
One of the 16 audio channels in the SDI Out (either SD or HD) |
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channel |
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VITC (Vertical Interval |
The vertical interval of the Analog Composite Out. Outputs can be |
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Timecode) |
Black or any test signal. |
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SDI Out when it is SD. This is a digitized version of the VITC that |
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would be in an analog composite signal. |
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VITC can be assigned to any of the following line pairs: |
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Lines 13, 15 |
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Lines 14, 16 |
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Lines 15, 17 |
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Lines 16, 18 |
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Lines 17, 19 |
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Lines 18, 20 |
DVITC (Digital Vertical |
The vertical interval of the SDI Out when it is SD. Outputs can be |
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Interval Timecode) |
Black or any test signal. |
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SDI Out when it is HD. Can have DVITC packets carried in the |
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ancillary data spaces. |
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DVITC can be assigned to any of the following line pairs: |
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Lines 13, 15 |
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Lines 14, 16 |
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Lines 15, 17 |
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Lines 16, 18 |
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Lines 17, 19 |
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Lines 18, 20 |
ATC (Ancillary Timecode) |
The vertical interval when the output is HD SDI. SDI outputs can be |
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Black or any test signal. |
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There is no concept of line assignment for the ATC packet. |
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www.ensembledesigns.com |
BrightEye 57 |
Page 11 |
3G/HD/SD/Analog Test Signal and Sync Pulse Generator User Guide 
BrightEyeTM57
Table: SDI Output Selections and Corresponding Timecode
SDI Output |
TC Frame Rate |
VITC on SD Output |
Drop |
720p/59.94 |
The current SMPTE |
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spec (SMPTE-12M) |
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does not allow >30Hz |
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framerate |
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1080i/59.94 |
29.97 Frames/second |
yes |
On or Off |
1080i/50 |
25 Frames/second |
yes |
N/A |
1080sF/23.98 |
23.98 Frames/second |
no |
On or Off |
1080sF/24 |
24 Frames/second |
no |
N/A |
SD 525 |
29.97 Frames/second |
yes |
On or Off |
SD 625 |
25 Frames/second |
yes |
N/A |
www.ensembledesigns.com |
BrightEye 57 |
Page 12 |
3G/HD/SD/Analog Test Signal and Sync Pulse Generator User Guide |
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Audio Generation and Routing
Audio Generators
The diagram shown on the following two pages depicts the audio signal generation and routing for the BrightEye 57. It appears twice, first in a portrait view, then larger as a landscape view.
Audio can be output as follows:
•Analog audio (one stereo pair)
•AES digital audio (BNC)
•Digital audio embedded in the SD SDI and/or HD SDI video outputs
Sixteen Independently Programmable Audio Channels
The BrightEye 57 supports sixteen audio channels and the content of each channel is independently programmable. Choices include adjustable frequency tone generators, tone sweeps, silence, timecode, audio clip playback from the BrightEye 57’s secure digital card, and the external AES input. Left/right channel ID that synchronizes to the cyclops feature can also be selected.
Audio Embedded in the SDI Outputs
All sixteen of these channels can be embedded in the SDI outputs. Each AES output can select from any of the eight pairs that make up these sixteen channels. Similarly, the stereo analog output can be driven from any of these audio signal pairs.
Support for Analog and Digital Audio
The AES digital audio outputs are always synchronous with all of the video outputs – regardless of format – because all of the video outputs can be locked to a common time base. Multiple tone
generators can be used to identify multi-channel content. Analog audio is output as one stereo pair or as two mono channels.
www.ensembledesigns.com |
BrightEye 57 |
Page 13 |
3G/HD/SD/Analog Test Signal and Sync Pulse Generator User Guide |
BrightEyeTM57 |
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BrightEye 56/57
3G/HD/SD Sync Pulse / Test Signal Generator
Audio Generation and Routing
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500 Hz |
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Tone |
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Timecode |
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Pairing |
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Audio |
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Playback |
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Channel Source Selector |
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WorkClock |
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Shaped LTC |
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Generator |
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Embedder |
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Group 2 |
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Embedder |
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Group 3 |
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Embedder |
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Group 4 |
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Embedder |
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8 Channel Pairs |
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AES |
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BrightEye 57 Audio Generation and Routing Functional Diagram, Portrait View
www.ensembledesigns.com |
BrightEye 57 |
Page 14 |
BrightEyeTM57
3G/HD/SD/Analog Test Signal and Sync Pulse Generator User Guide
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Video from TSG |
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500 Hz |
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Pairing |
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DDR2 |
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Encoder |
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Playback |
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Silence |
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elecSe |
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Input |
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WorkClock |
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Aligned |
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Shaped TC |
LTC |
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from |
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BrightEye 57 Audio Generation and Routing Functional Diagram, Landscape View
Page 15
BrightEye 57
www.ensembledesigns.com
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