參數(shù)資料
型號: THS1009IDARG4
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(gè)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): 21/31頁
文件大?。?/td> 235K
代理商: THS1009IDARG4
SLAS287A
AUGUST 2000
REVISED DECEMBER 2002
www.ti.com
21
TIMING AND SIGNAL DESCRIPTION OF THE THS1009
The reading from the THS1009 and writing to the THS1009 is performed by using the chip select inputs (CS0, CS1),
the write input WR and the read input RD. The write input is configurable to a combined read/write input (R/W). This
is desired in cases where the connected processor consists of a combined read/write output signal (R/W). The two
chip select inputs can be used to interface easily to a processor.
Reading from the THS1009 takes place by an internal RD
int
signal, which is generated from the logical combination
of the external signals CS0, CS1 and RD (see Figure 28). This signal is then used to strobe out the words and to
enable the output buffers. The last external signal (either CS0, CS1 or RD) to become valid makes RD
int
active while
the write input (WR) is inactive. The first of those external signals switching to its inactive state deactivates RD
int
again.
Writing to the THS1009 takes place by an internal WR
int
signal, which is generated from the logical combination of
the external signals CS0, CS1 and WR. This signal strobes the control words into the control registers 0 and 1. The
last external signal (either CS0, CS1 or WR) to become valid switches WR
int
active while the read input (RD) is
inactive. The first of those external signals going to its inactive state deactivates WR
int
again.
RDint
WRint
Control/Data
Registers
CS0
CS1
RD
WR
Data Bits
Figure 28. Logical Combination of CS0, CS1, RD, and WR
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