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TBC and Frame Sync
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This user guide provides detailed information for using the BrightEye™ 3
Analog to SDI Converter with Time Base Corrector and Frame Sync.
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
• Using The BrightEye Control Application
• Warranty and Factory Service
• Specifications
• Glossary
Analog to SDI
Converter with
User Guide
S
BrightEye-1
Revision 4.0 SW v1.0.8
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Table of Contents
Related Manuals for Ensemble Designs BrightEye 3
Summary of Contents for Ensemble Designs BrightEye 3
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Page 1: User Guide
Analog to SDI Converter with TBC and Frame Sync User Guide N S E M B L E Revision 4.0 SW v1.0.8 This user guide provides detailed information for using the BrightEye™ 3 Analog to SDI Converter with Time Base Corrector and Frame Sync. The information in this user guide is organized into the following sections: •... -
Page 2: Product Overview
An external reference input allows genlock to a a timing reference such as color black. BrightEye 3 is great for such applications as capturing consumer VCRs into non- linear editing systems. - Page 3 The output of the TBC/Frame Synchronizer is serialized as a 270 Mb/s bitstream and feeds the electrical BNC connector. BrightEye 3 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.
- Page 4 One application, shown in the illustration below, utilizes the full functionality of BrightEye 3 by converting an output from a consumer VCR to an SDI signal for feeding a non-linear editing system. The use of a reference input also allows the converted signal to be synchronous with the house reference.
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Page 5: Rear Connectors
All connections to the BrightEye converter are made on the rear of the unit. Refer to the illustration below. BrightEye 3 Rear Connectors Power Connection Connect a modular power supply to the 12 volt DC power input connection on the far left. - Page 6 BrightEye 3 Analog to SDI Converter with TBC/FS Cpst, Y In This is the internally terminated, 75 ohm input for one of the following signal formats: • Composite (Cpst) – composite input • S-Video (composite) – Y input • Beta or SMPTE – Y input...
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Page 7: Operation
OPERATION Control and operation of the BrightEye 3 converter is performed from the front panel or with the BrightEye Control application. Some control settings are only available with BrightEye PC or Mac. These parameters NOTE: cannot be monitored or controlled with the front panel. -
Page 8: Adjusting Parameters From The Front Panel
BrightEye 3 Analog to SDI Converter with TBC/FS 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. -
Page 9: Using The Brighteye Control Application
BrightEye 3 from a personal computer. Installation and instructions for using this software application are given in the PDF manual on disk. If the BrightEye 3 is connected to a computer running this software, the following menus are available for controlling and mon- itoring the unit. - Page 10 BrightEye 3 Analog to SDI Converter with TBC/FS The following status items are also reported for the unit: • Input Pres – reports the presence and detected line rate of the video input. • Ref Pres – reports the reference input status.
- Page 11 Trims Menu The Trim menu provides the adjustments below for the component Cr and Cb input video input gain and DC offsets to compensate for incorrect levels on the input sources: • Cr Gain – adjusts the input gain of the Cr channel video (± 30). •...
- Page 12 BrightEye 3 Analog to SDI Converter with TBC/FS Timing Menu Timing adjustments can be made when the Frame Sync function is enabled on the unit. The Timing menu provides the following controls: • Ver Time – adjusts the vertical timing of the signal in +/- 625 line incre- ments relative to the reference input when Frame Sync is enabled (on).
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Page 13: Warranty And Factory Service
WARRANTY AND FACTORY SERVICE Warranty Ensemble Designs, Inc. warrants this product to be free from defect in material and workmanship for a period of five years from the date of delivery. During this two 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-... -
Page 14: Specifications
BrightEye 3 Analog to SDI Converter with TBC/FS SPECIFICATIONS Analog Input: Number: Type: Beta/SMPTE, Y, Pr, Pb NTSC, PAL Composite NTSC, PAL S-Video Impedance: 75 Ω Return Loss: > 40 dB Input DC: +/- 1 volt DC Input Hum: < 100 mV... -
Page 15: Brighteye Power Supply Information
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. BEPS6 Spider Power Supply. This powers 6 single high BrightEyes or 3 double high BrightEyes (BrightEye 90 family). - Page 16 BrightEye 3 Analog to SDI Converter with TBC/FS 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.
- Page 17 Chroma The color or chroma content of a signal, consisting of the hue and saturation of the image. See also Color Difference. Component In a component video system, the totality of the image is carried by three separate but related components. This method provides the best image fidelity with the fewest artifacts, but it requires three independent transmission paths (cables).
- Page 18 BrightEye 3 Analog to SDI Converter with TBC/FS dBFS In Digital Audio systems, the largest numerical value that can be represented is referred to as Full Scale. No values or audio levels greater than FS can be repro- duced because they would be clipped. The nominal operating point (roughly corre- sponding to 0 VU) must be set below FS in order to have headroom for audio peaks.
- Page 19 The International Electrotechnical Commission provides a wide range of worldwide standards. They have provided standardization of the AC power con- nection to products by means of an IEC line cord. The connection point uses three flat contact blades in a triangular arrangement, set in a rectangular connector. The IEC specification does not dictate line voltage or frequency.
- Page 20 BrightEye 3 Analog to SDI Converter with TBC/FS Multi-mode Multi-mode fibers have a larger diameter core (either 50 or 62.5 microns), and a correspondingly larger aperture. It is much easier to couple light energy into a multi-mode fiber, but internal reflections will cause multiple “modes” of the signal to propagate down the fiber.
- Page 21 Return Loss An idealized input or output circuit will exactly match its desired impedance (generally 75 ohms) as a purely resistive element, with no reactive (capacitive or inductive elements). In the real world we can only approach the ideal. So our real inputs and outputs will have some capacitance and inductance.
- Page 22 BrightEye 3 Analog to SDI Converter with TBC/FS A Time Base Corrector is a system to reduce the Time Base Error in a signal to acceptable levels. It accomplishes this by using a FIFO (First In, First Out) memory. The incoming video is written into the memory using its own jittery timing.
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