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TMC22091 датащи(PDF) 39 Page - Cadeka Microcircuits LLC. |
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TMC22091 датащи(HTML) 39 Page - Cadeka Microcircuits LLC. |
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39 / 60 page ![]() PRODUCT SPECIFICATION TMC22091/TMC22191 39 Internal Pixel Data Control When programmed as an output, PDC goes HIGH four PXCK periods prior to the end of CBP (as programmed in the horizontal timing registers) which is also four PXCK cycles prior to required input of the first pixel of a line. Pixels produced by the encoder appear at the analog outputs (COMPOSITE, LUMA, CHROMA) 40 clocks after they are registered into the PD port. Note that the pixels enter at one- half the PXCK rate. The encoded signal passes through interpolation filters which generate intermediate output val- ues, improving the output frequency response and greatly simplifying the external reconstruction filter. The interpo- lated pixels are designated PI in the diagram. Figure 17. External Pixel Data Control PXCK 24358A COMPOSITE OUTPUT POST-FILTER OUTPUT PDC PD P1 P2 P1 P3 P4 P19 P20 P22 P23 P24 PI1 P2 PI2 P3 P21 Figure 18. Internal Pixel Data Control PXCK tDO 24357A COMPOSITE OUTPUT POST-FILTER OUTPUT PDC PD P1 P2 P1 P3 P4 P19 P20 P22 P23 P24 PI1 P2 PI2 P3 P21 |
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