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LTC2373-18 数据表(PDF) 39 Page - Linear Technology |
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LTC2373-18 数据表(HTML) 39 Page - Linear Technology |
39 / 50 page LTC2373-18 39 237318f For more information www.linear.com/LTC2373-18 TiMing DiagraMs Multiple Devices Figure 27 shows the multiple LTC2373-18 devices operat- ing and sharing CNV, SDI, SCK and SDO. By sharing CNV, SDI, SCK and SDO, the number of signals required to operate multiple ADCs in parallel is reduced. Since SDO is shared, the RDL input of each ADC must be used to allow only one LTC2373-18 to drive SDO at a time in order to avoid bus conflicts. RDL must also be used to selectively program each ADC through the shared SDI input line. The RDLinputsidlehighandareindividuallybroughtlowtoread data out of and selectively program each device between conversions. When RDL is brought low, the MSB(D17) of the selected device is output onto SDO. Figure 27. Multiple Devices Sharing CNV, SCK and SDO CNV RESET = 0 NAP RDLA RDLB BUSY tCNVH tCONV CONVERT NAP tBUSYLH 1 2 3 SCK 16 17 18 SDO 237318 F27 19 20 21 tCNVL CONVERT tHSDISCK tSSDISCK tDSDO tDIS Hi-Z tHSDO tSCK SDI DON’T CARE CA[7] CA[6] CA[5] 34 35 36 tQUIET tSCKL tSCKH tEN Hi-Z D17A D16A D15A D1A D0A D17B D16B D15B Hi-Z D1B D0B CB[7] CB[5] CB[6] CONVERT DIGITAL HOST IRQ SDI DATA IN CLK RDLB RDLA CNV BUSY SDI SDO SCK RDL RESET LTC2373-18 A CNV BUSY SDI SDO SCK RDL RESET LTC2373-18 B |
类似零件编号 - LTC2373-18_15 |
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类似说明 - LTC2373-18_15 |
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