BrightEye 56 HD/SD/Analog Test Signal and Sync Pulse Generator User Guide Revision 1.3 SW v1.2.
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.
HD/SD/Analog Test Signal and Sync Pulse Generator User Guide BrightEye 56 TM Contents Product Overview 5 Sync Generator and Test Signal Generator 5 Outputs 5 Adjustments and Controls 5 Tri Level Sync 5 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 Time Co
HD/SD/Analog Test Signal and Sync Pulse Generator User Guide BrightEye 56 TM SDI Out 19 SD Composite Out 19 Ref In (Reference In) 20 Programmable Outputs 20 Module Configuration and Control 21 Front Panel Controls and Indicators 21 Status Indicators 21 Adjusting Parameters from the Front Panel Using the BrightEye Control Application 22 23 Format Menu 23 Pattern Menu 24 SDI Out Menu 26 Cpst Out Menu 27 TLS Menu 28 Audio Menu 29 Timecode Menu 31 Aux Out Menu
HD/SD/Analog Test Signal and Sync Pulse Generator User Guide BrightEye 56 TM Product Overview Sync Generator and Test Signal Generator The BrightEye 56 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 56 is well suited for remote trucks, post, helicopters and fly packs. Outputs The SDI Outputs 1 and 2 provide 1.
BrightEye 56 HD/SD/Analog Test Signal and Sync Pulse Generator User Guide TM The BrightEye 56 will apply the selected TLS frame rates to specific formats and line rates as shown in the table below. Frame Rate Line Rate 1080i 720p 1080p 1080sF 23.98/50/59.94 Hz NTSC PAL 59.94 50 59.94 50 23.98 25 23.
HD/SD/Analog Test Signal and Sync Pulse Generator User Guide BrightEye 56 TM Functional Description External House Reference or Internal Precision Standard Reference The BrightEye 56 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.
BrightEye 56 HD/SD/Analog Test Signal and Sync Pulse Generator User Guide TM Block Diagram Please see the functional block diagram on the following two pages. It appears twice, first in a portrait view, then larger as a landscape view.
Internal Precision Standard Sync Separator Genlock Input will accept: 525 or 625 Composite TLS 10 MHz 1VP-P Sine or Square External Reference Input Sync Reference Selection Video/Audio Clock Generation Timing Adjustments TLS Timing Composite Output Timing SDI Output Timing Standard Internal Test Patterns Black Gen Simple Colorbars Test Signal Generator TLS Out TLS Out Composite 1 Tri-Level Sync Generator Composite Encoder SDI Out 1 VITC Insert HD/SD Serializer SDI Out 2 Composite 2 DV
HD/SD/Analog Test Signal and Sync Pulse Generator User Guide BrightEye 56 TM Time Code Generator The output of the BrightEye 56’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.
HD/SD/Analog Test Signal and Sync Pulse Generator User Guide BrightEye 56 TM Table: Timecode Output Types and Output Connectors Timecode Output Type LTC (Linear or Longitudinal Timecode) single-ended Note: An LTC signal is a very low data rate bit stream that fits within the bandwidth of an analog audio signal.
BrightEye 56 HD/SD/Analog Test Signal and Sync Pulse Generator User Guide TM Table: SDI Output Selections and Corresponding Timecode SDI Output 720p/59.94 1080i/59.94 1080i/50 1080sF/23.98 1080sF/24 SD 525 SD 625 TC Frame Rate The current SMPTE spec (SMPTE-12M) does not allow > 30Hz framerate 29.97 Frames/second 25 Frames/second 23.98 Frames/second 24 Frames/second 29.97 Frames/second 25 Frames/second www.ensembledesigns.
HD/SD/Analog Test Signal and Sync Pulse Generator User Guide BrightEye 56 TM Audio Generation and Routing Audio Generators The diagram shown on the following two pages depicts the audio signal generation and routing for the BrightEye 56. It appears twice, first in a portrait view, then larger as a landscape view.
BrightEye 56 HD/SD/Analog Test Signal and Sync Pulse Generator User Guide TM Video from TSG BrightEye 56/57 Group 1 Embedder Enable Group 2 Embedder Enable Group 3 Embedder Enable Group 4 Embedder Enable Ch 1:4 3G/HD/SD Sync Pulse / Test Signal Generator Audio Generation and Routing Ch 5:8 Ch 9:12 Ch 13:16 8 Channel Pairs To Serializer 300 Hz 400 Hz 500 Hz 600 Hz Tone Generator 800 Hz 1.
BrightEye 56/57 3G/HD/SD Sync Pulse / Test Signal Generator 300 Hz 400 Hz 500 Hz 600 Hz 800 Hz 1.0 KHz 1.2 KHz 1.
BrightEye 56 HD/SD/Analog Test Signal and Sync Pulse Generator User Guide TM Applications BrightEye 56’s complete feature set makes it a versatile genlock sync and test signal generator. Its small size also makes it an excellent choice for use in mobile applications. Two examples of BrightEye 56 applications are given below. Analog, HD SDI and Audio Reference Outputs In the example below, the BrightEye 56 is providing analog, HD SDI and audio reference outputs.
BrightEye 56 HD/SD/Analog Test Signal and Sync Pulse Generator User Guide TM Genlocked Test Signals BrightEye 56 can be used to provide bars and other test signals to facility devices timed to the same house reference. A number of test signals can be fed to a router, switcher, and other devices in a facility where genlocked timing is important. As shown in the example below, a BrightEye 56 is fed with the house reference to the Ref In BNC.
BrightEye 56 HD/SD/Analog Test Signal and Sync Pulse Generator User Guide TM Rear Connectors All connections to the BrightEye 56 are made on the rear of the unit. Refer to the illustration below.
HD/SD/Analog Test Signal and Sync Pulse Generator User Guide BrightEye 56 TM Balanced Analog Audio Connection To connect the audio output to an audio XLR connector, connect the pins as follows: • Attach Ground from Pin 1 of the Audio Out to Pin 1 of the XLR. • Attach the + (plus) signal from Pin 2 of the Audio Out to Pin 2 of the XLR. • Attach the – (minus) signal from Pin 3 of the Audio Out to Pin 3 of the XLR.
HD/SD/Analog Test Signal and Sync Pulse Generator User Guide BrightEye 56 TM Ref In (Reference In) The Ref In BNC accepts 1 V P-P PAL, NTSC, 10 MHz or Tri Level Sync reference input to provide an overall genlock timing reference for the unit. Programmable Outputs The Programmable Outputs (Aux 1, Aux 2 and Aux 3) BNCs are programmable outputs that can deliver LTC (Timecode), AES Audio 1/2, 3/4, 5/6, 7/8, 9/10, 11/12, 13/14, 15/16, AES Silence, Word Clock or 6 Hz Pulse. www.ensembledesigns.
HD/SD/Analog Test Signal and Sync Pulse Generator User Guide BrightEye 56 TM Module Configuration and Control Control and operation of the BrightEye 56 is performed from the front panel and with the BrightEye Control application (version 2.1.2 or later). Some control settings and parameter choices are available only with BrightEye PC or Mac; these parameters cannot be monitored from the front panel.
HD/SD/Analog Test Signal and Sync Pulse Generator User Guide BrightEye 56 TM HD Format The currently selected HD Format (1080i, 720p, 1080p, or 1080sF) is illuminated green. The Tri Level Sync (TLS) frame rate is determined by the selections made in the Standard, Mode and HD Format fields in the Format menu of the BrightEye Control application. Ref (Reference) The status indicator will be green when a valid reference is present and locked.
HD/SD/Analog Test Signal and Sync Pulse Generator User Guide BrightEye 56 TM Using the BrightEye Control Application The BrightEye PC and BrightEye Mac applications (version 2.1.2 or later) included on CD-ROM are designed to allow you to configure and control the BrightEye 56 from a personal computer. Instructions for installing and using this software application are given in the PDF manual on the CDROM.
HD/SD/Analog Test Signal and Sync Pulse Generator User Guide BrightEye 56 TM Pattern Menu To select the video test pattern, select the Pattern menu shown below. Use the drop-down menus to set the parameters for the Pattern Sel, Preset 1, Preset 2, and Preset 3 fields. Determine the Slate ID parameters. Select Video ID Mode and Audio ID Mode. Enable or disable the Y, Cr and Cb Channels. • Pattern Sel – select the video test pattern for output from the drop-down menu.
HD/SD/Analog Test Signal and Sync Pulse Generator User Guide BrightEye 56 TM • Video ID Mode – select one of three modes: Slate Only, Cyclops Only, or Slate Cyclops. Slate Only means that only the Slate Text ID will display over the selected video test pattern. Cyclops Only means that Cyclops will display over the selected video test pattern. (Cyclops adds a moving element to the test signal in order to assist in checking that a particular signal path is live.
HD/SD/Analog Test Signal and Sync Pulse Generator User Guide BrightEye 56 TM SDI Out Menu From the SDI Out menu, you can select a value for the SDI video outputs (SDI Out 1 and SDI Out 2). Vertical and Horizontal Timing adjustments are provided for timing the outputs with respect to the reference input. • SDI Format – reports which HD or SD format has been selected for the SDI Output BNCs. To change the format, use the Format menu described earlier.
HD/SD/Analog Test Signal and Sync Pulse Generator User Guide BrightEye 56 TM Cpst Out Menu From the Cpst Out menu, you can select a value for the Cpst video outputs (Composite Out 1 and Composite Out 2). You can time the outputs with respect to the reference input by adjusting the Vertical Timing, Horizontal Timing and Fine Phase adjustments. • Cpst Format – reports what format has been selected for the Composite BNC Output. To change the format, use the Format menu described earlier.
HD/SD/Analog Test Signal and Sync Pulse Generator User Guide BrightEye 56 TM TLS Menu From the TLS menu, you can adjust the Vertical and Horizontal Timing of the Tri Level Sync with respect to the reference input. • TLS Format – Mirrors the TLS Format field in the Format menu. Reports the TLS format that has been selected from the Format menu described earlier. • Vert Timing – Set the vertical timing in lines. Range is -1000 to 1000 lines, default is zero.
HD/SD/Analog Test Signal and Sync Pulse Generator User Guide BrightEye 56 TM Audio Menu The BrightEye 56’s tone generator supports sixteen audio channels. The content of each channel is independently programmable. Choices include adjustable frequency tone generators, tone sweeps, silence and timecode. 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.
HD/SD/Analog Test Signal and Sync Pulse Generator User Guide BrightEye 56 TM • Embedding – Turn embedding on or off. When checked, embedding is on and the green Audio light is illuminated on the BrightEye 56 front panel. When not checked, embedding is off and the green Audio light on the front panel is not illuminated. • Analog Out – Available selections are: Channels 1/2 Channels 3/4 Channels 5/6 Channels 7/8 Channels 9/10 Channels 11/12 Channels 13/14 Channels 15/16 www.ensembledesigns.
HD/SD/Analog Test Signal and Sync Pulse Generator User Guide BrightEye 56 TM Timecode Menu You can load the Timecode Generator with a preset value through the control system. When a BrightEye 56 powers up, the Timecode Generator starts at 0:0:0:0. Alternatively, the BrightEye 56 can read VITC present on the reference input. This timecode value will be used continuously by the BrightEye 56’s internal generator.
HD/SD/Analog Test Signal and Sync Pulse Generator User Guide BrightEye 56 TM Aux Out Menu The Aux Out menu shown below allows you to set the output standards for the Programmable Output BNCs Aux 1, Aux 2 and Aux 3. The available selections are identical for all three controls. Choose from the following values: LTC Timecode AES Audio 1/2 AES Audio 3/4 AES Audio 5/6 AES Audio 7/8 AES Audio 9/10 AES Audio 11/12 AES Audio 13/14 AES Audio 15/16 AES Silence Word Clock 6 Hz Pulse www.ensembledesigns.
HD/SD/Analog Test Signal and Sync Pulse Generator User Guide BrightEye 56 TM Config Menu The BrightEye 56 can lock to an external house reference or it can lock to its own internal precision standard reference. From the Config Menu, you can select the overall genlock timing reference, enable or disable Composite Setup, and select levels for Digital and Analog Audio Reference Levels.
HD/SD/Analog Test Signal and Sync Pulse Generator User Guide BrightEye 56 TM Troubleshooting As a troubleshooting aid, the reference signal status and presence, power and CPU status can be easily monitored from the front panel using the front panel indicators. Refer to the overall troubleshooting tips given below for the BrightEye 56. No signal output • Check that the expected signal output matches the output selected in the Format Menu. • Check the configuration of Ref Mode in the Config Menu.
HD/SD/Analog Test Signal and Sync Pulse Generator User Guide BrightEye 56 TM Software Updating Software upgrades for BrightEyes are available at: http://www.ensembledesigns.com/support/brighteye-support/ Use BrightEye Mac or PC software (version 2.1.2 or later) to install the software update into your BrightEye. Warranty and Factory Service Warranty This unit is covered by a five-year limited warranty.
HD/SD/Analog Test Signal and Sync Pulse Generator User Guide BrightEye 56 TM Specifications Reference Input Number Signal Type Return Loss One 1V P-P PAL, NTSC, 10 MHz or Tri-Level Sync >40 dB to 5.5 MHz Composite Output Number Signal Type Impedance Return Loss Frequency Response Output DC K Factor Differential Phase SCH Phase Two NTSC / PAL 75 Ω >40 dB to 5.5 MHz -0.1 dB 10 KHz to 5.0 MHz ±50 mV <1.0% <1.
HD/SD/Analog Test Signal and Sync Pulse Generator User Guide BrightEye 56 TM Tri Level Sync Output Number Two, 75 Ω Output DC ±50 mV Return Loss >30 dB to 30 MHz 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 625i 50, 525i 59.
HD/SD/Analog Test Signal and Sync Pulse Generator User Guide BrightEye 56 TM Glossary 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.
HD/SD/Analog Test Signal and Sync Pulse Generator User Guide BrightEye 56 TM additional bit of resolution will double the number of different states that can be represented. Systems that operate with a greater number of bits of resolution, or quantization, will be able to capture a signal with more detail or fidelity. Thus, a video digitizer with 12 bits of resolution will capture 4 times as much detail as one with 10 bits.
HD/SD/Analog Test Signal and Sync Pulse Generator User Guide BrightEye 56 TM the signal apart again at the destination in order to display it or process it. The resultant artifacts of dot crawl (also referred to as chroma crawl) 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 Difference systems take advantage of the details of human vision.
HD/SD/Analog Test Signal and Sync Pulse Generator User Guide BrightEye 56 TM of the television waveform. This technique can be very cost effective in transmission and routing, but can also add complexity to signal handling issues because the audio content can no longer be treated independently of the video. Eye Pattern To analyze a digital bitstream, the signal can be displayed visually on an oscilloscope by triggering the horizontal timebase with a clock extracted from the stream.
HD/SD/Analog Test Signal and Sync Pulse Generator User Guide BrightEye 56 TM IEC The International Electrotechnical Commission provides a wide range of worldwide standards. They have provided standardization of the AC power connection 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.
HD/SD/Analog Test Signal and Sync Pulse Generator User Guide BrightEye 56 TM MPEG The Moving Picture Experts Group is an industry group that develops standards for the compression of moving pictures for television. Their work is an on-going effort. The understanding of image processing and information theory is constantly expanding. And the raw bandwidth of both the hardware and software used for this work is ever increasing.
HD/SD/Analog Test Signal and Sync Pulse Generator User Guide BrightEye 56 TM Oversampling A technique to perform digital sampling at a multiple of the required sample rate. This has the advantage of raising the Nyquist Rate (the maximum frequency which can be reproduced by a given sample rate) much higher than the desired passband. This allows more easily realized anti-aliasing filters.
HD/SD/Analog Test Signal and Sync Pulse Generator User Guide BrightEye 56 TM Setup In the NTSC Analog Composite standard, the term Setup refers to the addition of an artificial offset or pedestal to the luminance content. This places the Black Level of the analog signal 54 mV (7.5 IRE) positive with respect to ground. The use of Setup is a legacy from the early development of television receivers in the vacuum tube era.
HD/SD/Analog Test Signal and Sync Pulse Generator User Guide BrightEye 56 TM is used to read the video back out of the memory. The memory acts as a dynamically adjusting delay to smooth out the imperfections in the original signal’s timing. Very often a TBC will also function as a Frame Synchronizer. See also Frame Sync. Time Base Error Time base error is present when there is excessive jitter or uncertainty in the line to line output timing of a video signal.
HD/SD/Analog Test Signal and Sync Pulse Generator User Guide BrightEye 56 TM for every bit in the digital audio word. A clock signal, which is a square wave at the audio sampling frequency, is carried on a 75 ohm coaxial cable. Early systems would daisychain this 44.1 or 48 kilohertz clock from one device to another with coax cable and Tee connectors. On the rising edge of this Work Clock these twisted pairs would carry the left channel, while on the falling edge, they would carry the right channel.
