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CS7615 датащи(PDF) 7 Page - Cirrus Logic |
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CS7615 датащи(HTML) 7 Page - Cirrus Logic |
7 / 36 page CS7615 DS231PP6 7 The EAV/SAV code definitions are consistent with an 8-bit data path. As per the ITU-656 recommen- dation, the LSB’s of the CS7615 are fractional bits which are not used when delivering 8-bit output da- ta. In 10-bit mode, all ten digital outputs can be connected directly to the CS7665. The output data format from the CS7615 formatter is shown in Figure 6. The CS7615 also outputs two clocks, one at the pixel rate and the other at 2× the output pixel data rate (see pin description for CLK2XO). The output of the formatter is avail- able at the pins DO[0..9] and it transitions at the fall- ing edge of the pixel rate clock CLKO. Figure 7 shows the basic output timing diagram. The falling edges of CLKO lag the falling edges of CLK2XO by 4 to 8 ns and both clocks have approximately 50% duty cycles. HREF 4T NbT 4T AV*T Blanking period Active video EAV code (10 bits) Smpl. Word 0 3FFh 1 000h 2 000h 3 Binary 1 fv1P3P2P1P000 Blank code (10 bits) Smpl. Word 4 040h repeat above word SAV code (10 bits) Smpl. Word 0 3FFh 1 000h 2 000h 3 Binary 1 fv0P3P2P1P000 During active video, f = field bit; 0 (odd field), 1 (even field) v = vertical blanking bit; 0 (active video lines), 1(vertical blanking) P3P2P1P0 = error protection bits (as per ITU-656). T = output pixel period samples of mosaic data; during vertical blanking, 040h. At reset or power down, 040h. Figure 6. CS7615 Output Data Format |
Аналогичный номер детали - CS7615 |
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Аналогичное описание - CS7615 |
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