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AD6622S/PCB 数据表(PDF) 4 Page - Analog Devices |
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AD6622S/PCB 数据表(HTML) 4 Page - Analog Devices |
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4 / 28 page  AD6622 –4– REV. 0 Test AD6622AS Name Parameter (Conditions) Temp Level Min Typ Max Unit MICROPROCESSOR PORT, MODE MNM (MODE = 1) MODE MNM Write Timing: tHDS DS(RD) to DTACK(RDY) Hold Time Full IV 0 ns tHRW R/ W(WR) to DTACK(RDY) Hold Time Full IV 0 ns tSAM Address/Data to R/ W(WR) Setup Time Full IV 0 ns tHAM Address/Data to R/ W(WR) Hold Time Full IV 0 ns tDDTACK DS(RD) to DTACK(RDY) Delay Full IV 1 × tCLK ns tACCFAST R/ W(WR) to DTACK(RDY) Low Delay Full IV 2 × t CLK 3 × t CLK ns tACCMEDIUM R/ W(WR) to DTACK(RDY) Low Delay Full IV 3 × tCLK 4 × tCLK ns tACCSLOW R/ W(WR) to DTACK(RDY) Low Delay Full IV 4 × tCLK 5 × tCLK ns MODE MNM Read Timing: tSAM Address to DS(RD) Setup Time Full IV 0 ns tHA Address to Data Hold Time Full IV 0 ns tZD Data Three-State Delay Full IV 0 ns tDD DTACK(RDY) to Data Delay Full IV tCLK – 10 ns tDDTACK DS(RD) to DTACK(RDY) Delay Full IV 1 × t CLK ns tACCFAST DS(RD) to DTACK(RDY) Low Delay Full IV 2 × tCLK 3 × tCLK ns tACCMEDIUM DS(RD) to DTACK(RDY) Low Delay Full IV 3 × tCLK 4 × tCLK ns tACCSLOW DS(RD) to DTACK(RDY) Low Delay Full IV 4 × t CLK 5 × t CLK ns NOTES 1All Timing Specifications valid over VDD range of 2.4 V to 3.3 V. Specifications subject to change without notice. CLK OUT[17:0], QOUT tCLK tCLKL tCLKH tZO tHO tZO OEN tSO Figure 1. Parallel Output Switching Characteristics CLK SCLK SDFS SDI CLKn DATAn tDSCLK tDSDFS tDSDFS tSSI tHSI Figure 2. Serial Port Switching Characteristics CLK IN[17:0], QIN tSI tHI Figure 3. Wideband Input Timing SYNC CLK tSS tHS Figure 4. SYNC Timing Inputs |
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