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AD6622AS датащи(PDF) 6 Page - Analog Devices

номер детали AD6622AS
подробное описание детали  Four-Channel, 75 MSPS Digital Transmit Signal Processor TSP
PDF  28 Pages
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производитель  AD [Analog Devices]
домашняя страница  http://www.analog.com
Logo AD - Analog Devices

AD6622AS датащи(HTML) 6 Page - Analog Devices

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AD6622
–6–
REV. 0
1. tACC ACCESS TIME DEPENDS ON THE ADDRESS ACCESSED. ACCESS TIME IS MEASURED FROM THE FE OF DS TO THE FE OF DTACK.
2. tACCFAST REQUIRES A MAXIMUM OF FOUR CLK PERIODS AND APPLIES TO A[2:0] = 7, 6, 3, 2, 1
3. tACCMEDIUM REQUIRES A MAXIMUM OF FIVE CLK PERIODS AND APPLIES TO A[2:0] = 4, 5, AND 0 IF THE ACCESS IS TO A CONTROL REGISTER
VERSUS A RAM REGISTER.
4. tACCSLOW REQUIRES A MAXIMUM OF SIX CLK PERIODS AND APPLIES TO A[2:0] = 0 WHEN ACCESSING RAM REGISTERS.
R/
W (WR)
DS (RD)
CS
A[2:0]
D[7:0]
DTACK
(RDY)
tHRW
tSAM
tHAM
tSAM
tHAM
tACC
VALID ADDRESS
VALID DATA
tDDTACK
tHDS
Figure 7. MNM Microport Write Timing Requirements
1. tACC ACCESS TIME DEPENDS ON THE ADDRESS ACCESSED. ACCESS TIME IS MEASURED FROM THE FE OF DS TO THE FE OF DTACK.
2. tACCFAST REQUIRES A MAXIMUM OF FOUR CLK PERIODS AND APPLIES TO A[2:0] = 7, 6, 3, 2, 1
3. tACCMEDIUM REQUIRES A MAXIMUM OF FIVE CLK PERIODS AND APPLIES TO A[2:0] = 4, 5, AND 0 IF THE ACCESS IS TO A CONTROL REGISTER
VERSUS A RAM REGISTER.
4. tACCSLOW REQUIRES A MAXIMUM OF SIX CLK PERIODS AND APPLIES TO A[2:0] = 0 WHEN ACCESSING RAM REGISTERS.
R/
W (WR)
DS (RD)
CS
A[2:0]
D[7:0]
DTACK
(RDY)
tSAM
tACC
VALID ADDRESS
tZD
VALID DATA
tDD
tHA
tZD
tHDS
tDDTACK
Figure 8. MNM Microport Read Timing Requirements



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