參數(shù)資料
型號(hào): AD6620AS
廠商: ANALOG DEVICES INC
元件分類: 微控制器/微處理器
英文描述: 65 MSPS Digital Receive Signal Processor
中文描述: SPECIALTY MICROPROCESSOR CIRCUIT, PQFP80
封裝: PLASTIC, QFP-80
文件頁(yè)數(shù): 9/43頁(yè)
文件大小: 354K
代理商: AD6620AS
AD6620
–9–
REV. 0
MICROPORT MODE0, READ
Timing is synchronous to CLK; MODE = 0.
t
DD
DATA VALID
t
HC
t
SC
t
HC
t
ZD
t
HA
t
RDY
t
RDY
ADDRESS VALID
t
SAM
t
ZR
N
N+1
N+2
N+3
N+4
N
CLK
1
WR
2
RD
2
CS
3
D[7:0]
RDY
1
A[2:0]
NOTES:
1
RDY IS DRIVEN LOW ASYNCHRONOUSLY BY
RD
AND
CS
GOING LOW AND RETURNS HIGH ON THE RISING EDGE
OF CLK "N+3" FOR INTERNAL ACCESS (A[2:0] = 000), CLK "N+2" OTHERWISE.
2
THE SIGNAL,
WR
, MAY REMAIN HIGH AND
RD
MAY REMAIN LOW TO CONTINUE READ MODE.
3
CS
MUST RETURN TO HIGH STATE AND BE SAMPLED BY CLK (N+4 SHOWN) TO COMPLETE READ.
Figure 17. MODE0 Read Timing Requirements and Switching Characteristics
MICROPORT MODE0, WRITE
Timing is synchronous to CLK; MODE = 0.
DATA VALID
t
HC
t
SC
t
HC
t
SC
t
HM
ADDRESS VALID
N
N+1
N+2
N+3
N*
CLK
1
WR
2
RD
2
CS
3
D[7:0]
RDY
A[2:0]
NOTES:
1
RDY IS DRIVEN LOW ASYNCHRONOUSLY BY
WR
AND
CS
GOING LOW AND RETURNS HIGH ON THE
RISING EDGE OF CLK "N+2".
2
THESE SIGNALS (R/W AND
DS
) MAY REMAIN IN LOW STATE TO CONTINUE WRITING DATA.
3
CS
MUST RETURN TO HIGH STATE AND BE SAMPLED BY CLK (N+3 SHOWN) TO COMPLETE WRITE.
* THE NEXT WRITE MAY BE INITIATED ON CLK, N*.
t
HA
t
RDY
t
RDY
t
SAM
t
SAM
Figure 18. MODE0 Write Timing Requirements and Switching Characteristics
相關(guān)PDF資料
PDF描述
AD6620S 65 MSPS Digital Receive Signal Processor
AD6620 65 MSPS Digital Receive Signal Processor(采樣速率65MSPS的數(shù)字接收信號(hào)處理器)
AD6622AS Four-Channel, 75 MSPS Digital Transmit Signal Processor TSP
AD6622PCB Four-Channel, 75 MSPS Digital Transmit Signal Processor TSP
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