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AD7641BCPZ データシート(PDF) 7 Page - Analog Devices |
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AD7641BCPZ データシート(HTML) 7 Page - Analog Devices |
7 / 14 page Preliminary Technical Data AD7631/AD7634 Rev. PrC | Page 7 of 14 Parameter Symbol Min Typ Max Unit BUSY High in Master Serial Read after Convert4 t28 See Table 4 CNVST Low to SYNC Asserted Delay (all Modes) t29 ns AD7631 TBD ns AD7634 (Warp Mode/Normal Mode/Impulse Mode) TBD ns SYNC Deasserted to BUSY Low Delay t30 25 ns SLAVE SERIAL INTERFACE MODES External SCLK Setup Time t31 5 ns External SCLK Active Edge to SDOUT Delay t32 1 8 ns SDIN Setup Time t33 5 ns SDIN Hold Time t34 5 ns External SCLK Period t35 12.5 ns External SCLK High t36 5 ns External SCLK Low t37 5 ns 1 In warp mode only, the maximum time between conversions is 1 ms; otherwise, there is no required maximum time. 2 In warp mode only, the time between conversions is 1 ms; otherwise, there is no required maximum time. 3 In serial interface modes, the SYNC, SCLK, and SDOUT timings are defined with a maximum load CL of 10 pF; otherwise, the load is 60 pF maximum. 4 In serial master read during convert mode. See Error! Reference source not found. for serial master read after convert mode timing specifications. Table 4. Serial Clock Timings in Master Read After Convert Mode DIVSCLK[1] 0 0 1 1 DIVSCLK[0] Symbol 0 1 0 1 Unit SYNC to SCLK First Edge Delay Minimum t18 3 17 17 17 ns Internal SCLK Period Minimum t19 25 60 120 240 ns Internal SCLK Period Maximum t19 40 80 160 320 ns Internal SCLK High Minimum t20 12 22 50 100 ns Internal SCLK Low Minimum t21 7 21 49 99 ns SDOUT Valid Setup Time Minimum t22 4 18 18 18 ns SDOUT Valid Hold Time Minimum t23 2 4 30 89 ns SCLK Last Edge to SYNC Delay Minimum t24 3 60 140 300 ns BUSY High Width Maximum (Warp mode) t28 1.75 2.5 4 7 μs BUSY High Width Maximum (Normal mode) t28 2 2.75 4.25 7.25 μs BUSY High Width Maximum (Impulse mode) t28 2.25 3 4.5 7.5 μs |
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同様の説明 - AD7641BCPZ |
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