Ensemble Designs BrightEye 55 Genlockable Sync Generator and Test Signal Generator - Manual (Page 2)

BrightEye 55 Genlockable SPG/TSG
BrightEye 55 - Page 2
PRODUCT OVERVIEW
BrightEye 55 is a genlockable sync 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 55 is well suited for
any application requiring genlocking of signals to a house reference as well as
remote trucks, desktop, and fly packs.
A variety of test signals including three color black variations, three color bar
variations, Safe Title, four sweep (multi-burst) variations, and several choices for
a user selectable test signal (selectable in BrightEye PC or Mac) are available on
the SDI and analog outputs.
A Slate ID with user-programmable text can overlay the test pattern output. The
cyclops feature adds a motion element on the video test signal, handy for live
applications.
The HD Tri Level Sync output provides reference to high definition equipment,
such as VTRs, disc recorders, and workstations. User-selectable formats include
720p, 1080i, 1080sF, and 1080p. Format selections and other controls are accessed
through the BrightEye Control application.
AES3id digital audio, analog audio with level adjustment, and embedded audio
reference outputs are provided.
A glossary of commonly used video terms is provided at the end of this manual.
FUNCTIONAL DESCRIPTION
The BrightEye 55 can lock to an external house reference or it can lock to its own
internal precision standard reference. Refer to the block diagram on the next page
while reading this section.
The Ref In BNC on the rear of the unit will accept an external PAL or NTSC
composite video signal as a reference. If a valid reference is detected on the Ref In
BNC, the unit switches to this reference automatically. The SDI, Tri Level Sync,
and AES outputs will all be synchronous relative to this reference. The overall
vertical and horizontal timing of the outputs can be adjusted in the BrightEye PC
or Mac Timing menu. Reference status is reported on the front of the unit and in
BrightEye PC or Mac. The Composite video output will have the same ScH phase
(or color framing) as the external reference.
A special case exists when simultaneously using PAL and NTSC. If the output
standard for the module is PAL and an NTSC reference is connected, BrightEye
55 will lock to the reference at the fundamental clock frequency common to PAL
and NTSC. This is referred to as “clock-locked”. The is no horizontal and vertical
relationship but BrightEye 55 will have the same frequency accuracy as the
reference and the AES audio output will be synchronous simultaneously to the
BrightEye 55 PAL output and the NTSC reference. The same case is true for an
NTSC standard with a PAL reference.
When no external reference is connected to the unit, the fundamental clock source
for BrightEye 55 is taken from a temperature compensated oscillator which
guarantees frequency accuracy to within 1 cycle of subcarrier (better than 0.2
ppm) across the full operating temperature range. In addition, because it does not
require a crystal oven, BrightEye 55 is accurate immediately upon power up. This
ensures that the BrightEye 55 outputs meet the most stringent standards.