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AD4020BCPZ-R2 データシート(PDF) 28 Page - Analog Devices |
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AD4020BCPZ-R2 データシート(HTML) 28 Page - Analog Devices |
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28 / 39 page ![]() AD4020/AD4021/AD4022 Data Sheet Rev. B | Page 28 of 39 tCYC tSCK tSCKL tSCKH tSCNVSCK tSSDISCK tHSDISCK tCNVH1 tEN tHSDO tDSDO tDIS tHCNVSCK tQUIET22 1THE CNV HIGH TIME MUST FOLLOW THE tCONV SPECIFICATION TO GENERATE A VALID CONVERSION RESULT. 2THE SCK FALLING EDGE TO CNV RISING EDGE DELAY MUST FOLLOW THE tQUIET2 SPECIFICATION TO ENSURE SPECIFIED PERFORMANCE. SDO D0 D1 D2 D3 D4 D5 D6 D7 D8 D9 D19 D18 D17 D16 D15 D14 D13 D12 D11 D10 CONVERSION RESULT ON D19 TO D0 SDI 0 1 0 1 R/W WEN B0 B1 B2 B3 B4 B5 B6 B7 0 0 1 1 (0) (0) 8-BIT REGISTER ACCESS COMMAND REGISTER DATA ON B7 TO B0 SCK 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 CNV Figure 50. Register Write Timing Diagram SDIA SDOA/SDIB SDOB 0 0 COMMAND (0x14) 0 0 COMMAND (0x14) 0 0 COMMAND (0x14) tCYC tSCK tSCKL tSCKH tSCNVSCK CNV SCK 1 24 tDIS tCNVH DATA (0xAB) DATA (0xAB) Figure 51. Register Write Timing Diagram, Daisy-Chain Mode |
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