Instruction/ maintenance manual of the product DTG5000 Series Tektronix
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Introduction The High Definition Multimedia Interface (HDMI) is an emerging consumer electronics standar d that is fast gaining acceptance by manufacturers of digital enter tainment pr oducts. HDMI offers an ef ficient one-cable inter face for High Definition (HD) video and audio content between receiver/playback devices and display devices.
H DMI Compliance & Sink Characterization Using DTG5000 Series Data T iming Generator Application Note 2 www .tektronix.com/signal_sources 2 HDMI supports standard, enhanced, or HD video as well as standard or multi-channel surr ound audio.
H DMI Compliance & Sink Characterization Using DTG5000 Series Data T iming Generator Application Note 3 www .tektronix.com/signal_sources The basic TMDS transmission line is made up of three data channels and a clock channel. Data consists of 8-bit pixels (256 discrete levels) in each of thr ee channels (R/G/B).
H DMI Compliance & Sink Characterization Using DTG5000 Series Data T iming Generator Application Note 4 www .tektronix.com/signal_sources 4 Most HDMI product developers want to perform pre-compliance testing; they have a clear incentive to ensure inter operability and compatibility .
H DMI Compliance & Sink Characterization Using DTG5000 Series Data T iming Generator Application Note 5 www .tektronix.com/signal_sources The jitter tolerance testing is perfor med in the follow- ing broad steps: 1. Determining W orst-case Clock-Data ske w: The skew in data is varied until the worst point is determined.
H DMI Compliance & Sink Characterization Using DTG5000 Series Data T iming Generator Application Note 6 www .tektronix.com/signal_sources 6 Intra-P air Ske w The Sink device also must tolerate a certain amount of intra-pair skew , that is, timing skew (misalignment) within respective dif ferential TMDS pairs.
H DMI Compliance & Sink Characterization Using DTG5000 Series Data T iming Generator Application Note 7 www .tektronix.com/signal_sources Hard ware Requirements: T est Equipment and P eripherals For Sink T ests T able 3 summarizes the measurement equipment and accessories (probes, cables, etc.
H DMI Compliance & Sink Characterization Using DTG5000 Series Data T iming Generator Application Note 8 www .tektronix.com/signal_sources 8 Jitter tolerance tests requir e a variable amount of jitter to be imposed on signals being sent to the device under test.
H DMI Compliance & Sink Characterization Using DTG5000 Series Data T iming Generator Application Note 9 www .tektronix.com/signal_sources – DTGM32 and Function Generator Method: This appr oach is ideal for quick verification and cost- effective pr e-compliance testing.
H DMI Compliance & Sink Characterization Using DTG5000 Series Data T iming Generator Application Note 10 www .tektronix.com/signal_sources 10 T est Adapters The approach using the DTGM32 and the AFG allows for thorough compliance and pr e compliance testing with a much simpler setup than the A WG method.
H DMI Compliance & Sink Characterization Using DTG5000 Series Data T iming Generator Application Note 11 www .tektronix.com/signal_sources Software T ools For Sink T ests Sink tests, like Source tests, can take a lot of time.
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If you already are a holder of Tektronix DTG5000 Series, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Tektronix DTG5000 Series.
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