Pixel Accurate Reclocking - Lightware HDMI-TPS-RX110AY Series User Manual

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10. Technologies
10.2. Pixel Accurate Reclocking
Signal reclocking is an essential important procedure in digital signal transmission. After passing the
reclocking circuit, the signal becomes stable, jitter-free, and can be transmitted over more equipment like
processors,oreventcontrollers.Withoutreclocking,sparkles,noise,andjaggiesappearontheimage.
Lightware'ssophisticatedPixelAccurateReclockingtechnologyfixesmoreproblemsthangeneralTMDS
reclocking. It removes not only intra-pair skew but inter-pair skew as well. The Pixel Accurate Reclocking
circuiteliminatesthefollowingerrors:
Intra-pair skew
Skew between the + and - wires within a differential wire pair (e.g. Data2- and Data2+). It's caused by different
wirelengthsorslightlydifferentwireconstruction(impedancemismatch)inDVIcable.Itresultsinjitter.
Inter-pair skew
Skew between two differential wire pairs in a cable. It is caused by different wire pair lengths or different
numberoftwistsintheDVIcable.Toomuchinter-pairskewresultscolorshiftinthepictureorsyncloss.
HDMI-TPS-RX110AY series – User's Manual
Jitter
Signalinstabilityinthetimedomain.Thetimedifferencebetweentwosignaltransitionsshouldbeafixed
value, but noise and other effects cause variations.
Noise
Electromagnetic interference between other electronic devices such as mobile phones, motors, etc. and the
DVIcablearecoupledontothesignal.Toomuchnoiseresultsinincreasedjitter.
Appliedfirmwarepackage:v1.4.0 | LDCsoftware:v2.4.0b3
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