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參數(shù)資料
| 型號(hào)： | TC520 |
| 廠商： | Microchip Technology Inc. |
| 英文描述： | Serial Interface Adapter for TC500 A/D Converter Family |
| 中文描述： | 串行接口適配器TC500的A / D轉(zhuǎn)換器系列 |
| 文件頁(yè)數(shù)： | 8/16頁(yè) |
| 文件大?。?/td> | 453K |
| 代理商： | TC520 |
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TC520A
DS21431B-page 8
2002 Microchip Technology Inc.
FIGURE 4-1:
TC520 initialization & startup conversion timing relatioNships
FIGURE 4-2:
lOad value modify cycle
4.4.6
OPTO-ISOLATED APPLICATIONS
The 3 wire serial port of the TC520A can be opto-
isolated for applications requiring isolated data acquisi-
tion. The additional control lines (LOAD, DV, READ)
are normally not needed in such applications, but can
also be brought across the isolation barrier with the
addition of a second isolator.
LOAD
LOAD VALUE updated
and conversion started
TC520A
Conversion State
CE is pulled
high only during
AZ (DV = Low)
New LOAD VALUE
can be loaded
(if so desired)
TC520A
held in
AZ phase
as long as CE = HIGH
CE
AZ
INT
IZ
DINT
AZ
INT
INT
DINT
IZ
AZ
AZ
D
IN
, D
CLK
DV
LOAD VALUE
shifted into
DIN
Load
Value
LOAD
LOAD VALUE updated
and conversion started
TC520A
Conversion State
CE
AZ
INT
IZ
DINT
AZ
INT
INT
DINT
IZ
AZ
D
IN
, D
CLK
DV
LOAD VALUE
shift into
D
IN
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