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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 

BrightEye-1

Analog to SDI

Converter with 

TBC and Frame Sync

User Guide

Revision 4.0   SW v1.0.8

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Summary of Contents for BrightEye 3

Page 1: ...e is organized into the following sections Product Overview Functional Description Applications Rear Connections Operation Front Panel Controls and Indicators Using The BrightEye Control Application W...

Page 2: ...rform analog to digital conversion on a variety of television signal formats in both the 525 60Hz NTSC and 625 50Hz PAL line standards The converter supports the NTSC and PAL composite standards Y C a...

Page 3: ...for this by buffering the signal through a memory FIFO which can hold up to one frame of video The output of the TBC Frame Synchronizer is serialized as a 270 Mb s bitstream and feeds the electrical...

Page 4: ...ical Conversion and Distribution 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...

Page 5: ...n CD ROM to make adjustments as described in the OPERATION section of this user guide Input Output BNCS There are five rear BNC connectors which are used as follows SDI Out The Serial Digital Componen...

Page 6: ...t composite input S Video composite Y input Beta or SMPTE Y input Ref In The reference input connector accepts a composite video signal which is used as the genlock and timing reference for the intern...

Page 7: ...vided on the front panel In Illuminates green when an input for the currently selected video format is detected on the input connector This indicator does not light when either of the two internally g...

Page 8: ...s Cpst Analog Composite Video Y C S Video Composite Video Beta Component Video in Beta format SMPTE Component Video in SMPTE format Bars Selects internal Color Bar Generator ChkFld Selects internal Ch...

Page 9: ...DI Bars or Checkfield Comb Mode use this control set the type of comb filtering desired from 3 Line or 5 Line Setup Removal use this control to indicate the presence of setup on the input in 525 mode...

Page 10: ...the gain is set to its nominal or unity setting This is the setting which will produce correct digital output levels from an analog input source which itself is at proper level The indicator will sho...

Page 11: ...ain and DC offsets to compensate for incorrect levels on the input sources Cr Gain adjusts the input gain of the Cr channel video 30 Cb Gain adjusts the input gain of the Cr channel video 30 Cr Offset...

Page 12: ...d on There is no front panel control or indication of this setting Hor Time adjusts the horizontal timing of the signal in 1715 clock increments relative to the input reference when Frame Sync is enab...

Page 13: ...without factory autho rization 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...

Page 14: ...solution 12 bit input quantization 4 X oversampling Signal to Noise 62 dB weighted Frequency Response Composite and Y 0 1 dB 0 to 5 5 MHz Pr Pb 0 1 dB 0 to 2 75 MHz Minimum Delay 90 Sec Reference Inpu...

Page 15: ...er Supply This powers 6 single high BrightEyes or 3 double high BrightEyes BrightEye 90 family BEPS6 RP Redundant Power Supply for Spider BERKMT BrightEye Rack Mount This holds 6 single high BrightEye...

Page 16: ...formation 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 synchr...

Page 17: ...are only the most obvious result Composite television is the most commonly used format throughout the world either as PAL or NTSC It is also referred to as Encoded video Color Difference Color Differe...

Page 18: ...SDI or HD SDI signal by taking advantage of the gaps in the transmission which correspond to the horizontal and vertical intervals of the television waveform This technique an be very cost effective...

Page 19: ...ginal 24 frames that make up each second of film they just project each one twice IRE Video level is measured on the IRE scale where 0 IRE is black and 100 IRE is full white The actual voltages that t...

Page 20: ...ages over metallic copper cables Firstly it does not require that the two endpoint devices have any electrical con nection to each other This can be very advantageous in large facilities where problem...

Page 21: ...this relationship is not the same at the beginning of each frame In PAL the pattern repeats ever 4 frames 8 fields which is also known as the Bruch Blanking sequence In NTSC the repeat is every 2 fra...

Page 22: ...deo tape recorders and is particularly severe with consumer type hetero dyne systems like VHS Time base error will render a signal unusable for broadcast or editing purposes Tri Level Sync An analog s...

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