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AD9992BBCZ датащи(PDF) 18 Page - Analog Devices |
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AD9992BBCZ датащи(HTML) 18 Page - Analog Devices |
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18 / 92 page ![]() AD9992 Rev. C | Page 18 of 92 P[0] P[64] = P[0] PIXEL PERIOD P[16] P[32] P[48] DOUT DCLK tOD NOTES 1. DATA OUTPUT (DOUT) AND DCLK PHASE ARE ADJUSTABLE WITH RESPECT TO THE PIXEL PERIOD. 2. WITHIN ONE CLOCK PERIOD, THE DATA TRANSITION CAN BE PROGRAMMED TO 64 DIFFERENT LOCATIONS. 3. DCLK CAN BE INVERTED WITH RESPECT TO DOUT BY USING THE DCLKINV REGISTER. Figure 20. Digital Output Phase Adjustment Using DOUTPHASEP Register NOTES 1. TIMING VALUES SHOWN ARE SHDLOC = 0, WITH DCLKMODE = 0. 2. HIGHER VALUES OF SHD AND/OR DOUT PHASE SHIFTS DOUT TRANSITION TO THE RIGHT, WITH RESPECT TO CLI LOCATION. 3. RECOMMENDED VALUE FOR DOUT PHASE IS TO USE SHPLOC OR UP TO 15 EDGES FOLLOWING SHPLOC. DCLK DOUT CCDIN CLI SHD (INTERNAL) ADC DOUT (INTERNAL) NN + 2 N + 1 N + 3 N + 13 N + 12 N + 11 N + 10 N + 9 N + 8 N + 7 N + 6 N + 5 N + 4 N + 14 SAMPLE PIXEL N N + 16 N + 17 N + 15 N – 14 N – 4 N – 5 N – 6 N – 7 N – 8 N – 9 N – 10 N – 11 N – 12 N – 13 N – 3 N – 2 N – 1 N N + 1 N – 15 N – 16 N – 17 tCLIDLY PIPELINE LATENCY = 16 CYCLES N – 14 N – 4 N – 5 N – 6 N – 7 N – 8 N – 9 N – 10 N – 11 N – 12 N – 13 N – 3 N – 2 N – 1 N N + 1 N – 15 N – 16 N – 17 tDOUTINH Figure 21. Digital Data Output Pipeline Delay |
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