Ensemble Designs BrightEye 76 Manuel utilisateur

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:

•ProductOverview

•FunctionalDescription

•Applications

•RearConnectors

•Operation

• Front Panel Controls and Indicators

• Using the BrightEye Control Application

•WarrantyandFactoryService

•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

IG N

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 simul-

taneous 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.

HD or SD SDI Optical Ou

(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

2 Channel

A to D

2 Channel

Analog Audio In

Analog SD In Yields SD SDI Out

Analog HD In Yields HD SDI Out

Mixer/Shuer

BrightEye 76 Functional Block Diagram, Potrait View

BrightEye 76

BrightEye 76 - Page 3

HD or SD SDI Optical 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

2 Channel

A to D

2 Channel

Analog Audio In

Analog SD In Yields SD SDI Out

Analog HD In Yields HD SDI Out

Mixer/Shuer

BrightEye 76 Functional Block Diagram, Landscape View

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.

Remote Truck/

OB Van

BrightEye 76

HD SDI

Analog HD Video

Optical HD SDI

Ref In

BrightEye 76 Signal Ingest Application for HD Signals

BrightEye 76

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 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 76 Rear Connectors

Ch 1 Ch 2

Push in to releasePin 1

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

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 indica-

tors for the module.

STATUS INDICATORS

The following status indicators are provided on the front panel:

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 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.

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:

BrightEye 76

BrightEye 76 - Page 9

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:

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 76 HD/SD Analog to Digital Converter With Optical Output

BrightEye 76 - 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 76 from a personal

computer. Installation and instructions for using this software application are

given in the PDF manual on disk.

If the BrightEye 76 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 (No Input, 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).

•LaserStatus– indicates the presence of a valid optical signal on the

HD/SD Optical Out connector (Laser OK, Laser Fail, or Reset).

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