BrightEye 75 TM HD/SD Analog to Digital Video Converter and Analog Audio Embedder User Guide ENSEMBLE D E S I G N S Revision 2.1 SW v1.0.7 This user guide provides detailed information for using the BrightEye 75 HD/SD Analog to Digital Video Converter and Analog Audio Embedder with TBC.
BrightEye 75 HD/SD Analog to Digital Converter and Analog Audio Embedder PRODUCT OVERVIEW BrightEye 75 converts standard definition analog component or composite video, or high definition analog component video to SDI with simultaneous 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.
Reference In Cpst, Y, G In C, Pb, B In Pr, R In 2 Channel Analog Audio In Analog HD or SD SDI BrightEye 75 - Page 3 2 Channel A to D Proc Amp Mixer/Shuffler TBC/ Frame Sync Embedder BrightEye 75 Functional Block Diagram, Landscape View 14 bit A to D Converter and Decoder Serializer HD or SD SDI Out (Follows Input) BrightEye 75 TM
BrightEye 75 HD/SD Analog to Digital Converter and Analog Audio Embedder APPLICATIONS The BrightEye 75 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 75. These are then digitized and time-base corrected by noise-tolerant tracking circuitry. The example below shows a three-camera, live studio setup.
BrightEye 75 TM REAR CONNECTORS All connections to the BrightEye 75 converter are made on the rear of the unit. Refer to the illustration below. BrightEye 75 Rear Connectors Power Connection Connect a modular power supply to the 12 volt DC power input connection on the far left of the unit. Use the locking ring to secure it. USB Connector The USB connector is used to provide more comprehensive control, diagnostics, and upgrades to the unit from a PC or Mac.
BrightEye 75 HD/SD Analog to Digital Converter and Analog Audio Embedder Unbalanced Audio to a RCA Phono Connection – to connect the BrightEye 75 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.
BrightEye 75 TM OPERATION Control and operation of the BrightEye 75 unit is performed from the front panel or remotely from a networked PC with the BrightEye Control application. NOTE: 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 indicators for the module.
BrightEye 75 HD/SD Analog to Digital Converter and Analog Audio Embedder VU 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.
BrightEye 75 TM 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. 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.
BrightEye 75 HD/SD Analog to Digital Converter and Analog Audio Embedder 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 75 from a personal computer. Installation and instructions for using this software application are given in the PDF manual on disk.
BrightEye 75 TM Proc Menu Use the Proc Menu to adjust the parameters of the analog video input signal. The Proc menu provides the following video adjustments: • Gain – adjust the overall gain of the signal from 0 to 150%. • Chroma – adjust the chroma gain of the signal from 0 to 150%. • Pedestal – adjust the pedestal level of the signal +/- 5 IRE. • Hue – adjust the hue of the signal +/- 180 degrees.
BrightEye 75 HD/SD Analog to Digital Converter and Analog Audio Embedder Mixer Menu Use the Mixer Menu to adjust the parameters of the embedded audio input signal. • Output 1 – provides peak/VU status for output channel 1. The Peak/VU indicator illuminates red when the audio level exceeds the headroom level set with the Peak Indicator control in the Config menu. Additionally, the indicator illuminates yellow when the output level exceeds 0 VU, or illuminates green when the output is above -20 VU.
BrightEye 75 TM Timing Menu Use the Timing Menu to set the parameters of the TBC and Frame Sync functions. The timing function operates in one of three modes: 1. When the Frame Sync control is turned On and a proper reference signal is connected to the Ref In BNC, the video output of the unit is synchronous and locked to the external reference. The output may be timed with respect to the Ref In using the timing controls.
BrightEye 75 HD/SD Analog to Digital Converter and Analog Audio Embedder Config Menu Use the Config menu to set the following output conditions for the output signal: • Signal Mute – select the condition for muting the output signal to No Muting, Mute On Noise, or Freeze on Noise. • Analog Setup – set to On if setup is present on the analog input, or Off if no setup is present.
BrightEye 75 TM Trim Menu The Trim menu provides an advanced level of adjustment to match your BE75 to a particular source if needed. Use the Trim menu to fine tune the color parameters of the output signal up or down, positive or negative. The values shown below are typical, though each BE75 may vary. • When input is Cpst, adjust Composite Trim and Saturation Trim from -100 to 100. • When input is Y/C, adjust Composite Trim and Saturation Trim from -100 to 100.
BrightEye 75 HD/SD Analog to Digital Converter and Analog Audio Embedder WARRANTY AND FACTORY SERVICE Warranty Ensemble Designs, Inc. warrants this product to be free from defect in material and workmanship for a period of 5 years from the date of delivery. During this 5 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 consultation with a factory technician. This warranty is not transferable.
BrightEye 75 TM SPECIFICATIONS Analog Video Input Number Signal Type Resolution Impedance Return Loss Input DC Input Hum One HD or SD: Y, Pr, Pb (SMPTE or Beta levels) HD or SD: Analog Component RGB (sync on green) Analog Composite PAL or NTSC Analog S-Video PAL or NTSC Digitized at 12 bits 75 1 > 40 dB +/- 1 volt DC < 100 mV Analog Audio Inputs Number Type Impedance Max Input Level CMRR Quantization Sample Rate Reference Level Frequency Response Crosstalk Dynamic Range Two Balanced > 15K 1 24 dBu > 60
BrightEye 75 HD/SD Analog to Digital Converter and Analog Audio Embedder HD 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 Embedded Output (In Serial Output) Group Assign One of four groups Channels Two Bit Depth 24 Bit Reference Input Number One Signal Type 1 V p-p Composite Video, PAL or NTSC Impedance 75 1 Return Loss > 40 dB General Specifications Size 5.
BrightEye 75 TM 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 BEPS-RP Redundant Power Supply for Individual and Spider Power Supply BEPS6 Spider Power Supply powers 6 single high BrightEyes or 3 double high BrightEyes BERKMT BrightEye Rack Mount (holds 3 to 6 BrightEyes) 1RU high, 6"/152.4 mm deep, 3 lbs/1.
BrightEye 75 HD/SD Analog to Digital Converter and Analog Audio Embedder 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. The AES/EBU standard covers a wide range of sample rates and quantizations (bit depths.
BrightEye 75 TM 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). The commonly used component formats are Luminance and Color Difference (Y/Pr/Pb), and RGB.
BrightEye 75 HD/SD Analog to Digital Converter and Analog Audio Embedder 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 reproduced because they would be clipped. The nominal operating point (roughly corresponding to 0 VU) must be set below FS in order to have headroom for audio peaks.
BrightEye 75 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.
BrightEye 75 HD/SD Analog to Digital Converter and Analog Audio Embedder Multimode Multimode 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 multimode fiber, but internal reflections will cause multiple “modes” of the signal to propagate down the fiber. This will degrade the ability of the fiber to be used over long distances. See also Singlemode.
BrightEye 75 TM 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. This will create impedance matching errors, especially at higher frequencies.
BrightEye 75 HD/SD Analog to Digital Converter and Analog Audio Embedder TBC 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.
