參數(shù)資料
型號: THS1009IDAR
廠商: Texas Instruments, Inc.
英文描述: 10-BIT, 2 ANALOG INPUT, 8 MSPS, SIMULTANEOUS SAMPLING ANALOG-TO-DIGITAL CONVERTER
中文描述: 10位,2個模擬輸入,8 MSPS的同步采樣模擬數(shù)字轉(zhuǎn)換器
文件頁數(shù): 24/31頁
文件大?。?/td> 235K
代理商: THS1009IDAR
SLAS287A
AUGUST 2000
REVISED DECEMBER 2002
www.ti.com
24
Read Timing (using R/W, CS0-controlled)
Figure 31 shows the read-timing behavior when the WR(R/W) input is programmed as a combined read-write input
R/W. The RD input has to be tied to high-level in this configuration. This timing is called CS0-controlled because CS0
is the last external signal of CS0, CS1, and R/W which becomes valid. The reading of the data should be done with
a certain timing relative to the conversion clock CONV_CLK, as illustrated in Figure 31.
óóó
óóó
10%
10%
90%
90%
90%
90%
90%
10%
10%
tsu(CONV_CLKL
CSOL)
tsu(CSOH
CONV_CLKL)
tw(CS)
tsu(R/W)
th(R/W)
ta
th
CONV_CLK
CS0
CS1
R/W
RD
D(0
11)
Figure 31. Read Timing Diagram Using R/W (CS0-controlled)
Read Timing Parameter (CS0-controlled)
PARAMETER
MIN
10
TYP
MAX
UNIT
ns
tsu(CONV_CLKL
CSOL)
tsu(CSOH
CONV_CLKL)
tsu(R/W)
ta
th
th(R/W)
tw(CS)
Setup time, CONV_CLK low before CS valid
Setup time, CS invalid to CONV_CLK low
20
ns
Setup time, R/W high to last CS valid
0
ns
Access time, last CS valid to data valid
0
10
ns
Hold time, first CS invalid to data invalid
0
5
ns
Hold time, first external CS invalid to R/W change
5
ns
Pulse duration, CS active
10
ns
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