SMPTE Meetings and Conferences ( February 1995)
[ACTIVE]
Digital to Analog Conversion—Data and Filter Requirements
Metadata
- Publisher
- SMPTE — White Plains, NY
- Doc Type
- Conference Paper
- Content Type
- Original Research
- Volume
- 1995, No. 14, pp. 130–137
- Abstract
- Ringing in the analog waveform caused by the filter response to the converted digital data is not a new problem. Early digital-based character generators for composite television applications caused significant ringing because the digital data produced too sharp an edge in the picture. Due to the specifications of component digital video these edge effects are once again becoming more apparent in television operations. This paper discusses the results of using 13.5 MHz luminance sampling to obtain flat analog bandwidth to 5.75 MHz and how the filter template required by the international standard will inevitably result in some noticeable ringing on fast picture transitions. Data requirements in the digital domain are analyzed using 2-T pulses an example while suggesting a different edge transition that will produce much less ringing. Designers are advised to consider the application of filters or edge processing to reduce the ringing due to digitally generated signals.
- Publication Date
- 1995-02-01
- DOI
10.5594/M00836- Link
- https://doi.org/10.5594/M00836
- Author(s)
- Dan BakerTektronix Inc. Beaverton, OregonDavid FibushTektronix Inc. Beaverton, Oregon
- Copyright
- © 1995 Society of Motion Picture and Television Engineers, Inc.
Bibliographic Reference(s)
- 1. Tektronix , “Television Measurements — NTSC Systems” Tektronix Inc. , Beaverton, Oregon , 1989 . EXTERNAL
- 2. Recommendation ITU-R BT.601, “Encoding Parameters of Digital Television for Studios” . EXTERNAL
- 3. Report ITU-R BT.962–2, “The Filtering, Sampling and Multiplexing for Digital Encoding of Colour Television Signals” . EXTERNAL
- 4. Recommendation ITU-R BT.801, “Test Signals for Digitally Encoded Colour Television Signals Conforming with Recommendations 601 and 656” . EXTERNAL
- 5. SMPTE RP 178, “Serial Digital Interface Check Field for 10-bit 4:2:2 Component and 4 f sc Composite Digital Signals”. EXTERNAL
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Dan Baker and David Fibush; Digital to Analog Conversion—Data and Filter Requirements, SMPTE Meetings and Conferences ( February 1995); SMPTE, 1995. Available at https://doi.org/10.5594/M00836
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Dan Baker and David Fibush; Digital to Analog Conversion—Data and Filter Requirements, SMPTE Meetings and Conferences ( February 1995); SMPTE, 1995. Available at https://doi.org/10.5594/M00836
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Dan Baker and David Fibush; Digital to Analog Conversion—Data and Filter Requirements, SMPTE Meetings and Conferences ( February 1995); SMPTE, 1995. Available at https://doi.org/10.5594/M00836
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<span class="citation">Dan Baker and David Fibush; <cite>Digital to Analog Conversion—Data and Filter Requirements</cite>, SMPTE Meetings and Conferences ( February 1995); SMPTE, 1995. Available at <a href="https://doi.org/10.5594/M00836" target="_blank" rel="noopener">https://doi.org/10.5594/M00836</a></span>
SMPTE's HTML Pub
Preview:
Dan Baker and David Fibush; Digital to Analog Conversion—Data and Filter Requirements, SMPTE Meetings and Conferences ( February 1995); SMPTE, 1995
doi: 10.5594/M00836
url: https://doi.org/10.5594/M00836
doi: 10.5594/M00836
url: https://doi.org/10.5594/M00836
Snippet:
<li> Dan Baker and David Fibush; <cite id="bib-10-5594-m00836">Digital to Analog Conversion—Data and Filter Requirements</cite>, SMPTE Meetings and Conferences ( February 1995); SMPTE, 1995 <span class="doi">10.5594/M00836</span> </li>