Topaz Router
Page 12 Revision 2.0
3.2. STANDARD DEFINITION VIDEO (SD)
The matrix is capable of handling signals in the following formats:
270Mb/s D1 component
270Mb/s ASI MPEG Compressed Video
143Mb/s D2 NTSC composite
177Mb/s D2 PAL composite
360Mb/s future wide screen applications
The serial video inputs are terminated in 75Ω and fed to an input receiver circuit that provides
equalization for losses to serial video signals, mainly at high frequencies, that have travelled down long
cables. This equalization varies automatically to suit the length and type of video cable used. The
crosspoint array switches the signal, which then passes to the output amplifiers that are designed to
drive 75Ω video cables. Outputs 15, 16, 31, and 32 have twin feeds and all other outputs have just one
feed of the signal.
Vertical interval switching is referenced to the Sync Input and complies with SMPTE RP-168.
3.3. HIGH DEFINITION VIDEO (HD)
The matrix is capable of handling signals in the following formats:
1.485Gb/s HD 60Hz Frame Rate
1.485/1.001Gb/s HD 59.94Hz Frame Rate
270Mb/s D1 component
270Mb/s ASI MPEG Compressed Video
143Mb/s D2 NTSC composite
177Mb/s D2 PAL composite
360Mb/s future wide screen applications
The serial video inputs are terminated in 75Ω and fed to an input receiver circuit that provides
equalization for losses, mainly at high frequencies, to serial video signals that have travelled down long
cables. This equalization varies automatically to suit the length and type of video cable used. It
automatically selects the correct sample rates from those mentioned above. The output amplifiers are
designed to drive 75Ω video cables. Output 1 has twin feeds but the second output has just one feed of
the signal.
Vertical interval switching is referenced to the Sync Input, which can be either HD tri-level sync or
standard sync (complies with SMPTE RP-168).
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