TDS794D 示波器

Full-bandwidth HDTV **s are primarily found within the TV studio, running between HDTV cameras, VTRs, switchers, and conversion products. These component video **s are usually transmitted as serial digital **s on coax or fiber-optic cable. The characteristics of these serial **s are specified by SMPTE 292M.

This application note describes how to use a Digital Phosphor Oscilloscope (DPO) to perform physical layer testing of a 1.485 Gb/s serial digital HDTV **. The TDS794D was chosen for this application because of its 2 GHz analog bandwidth and 250 GS/s equivalent-time sample rate. The Communication Signal Analyzer option is also used (for mask testing). The measurements discussed highlight some of the oscilloscope's capabilities for design debugging, ** characterization, and verification of compliance with industry standards.