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| 型號(hào)： | ES51977 |
| 廠商： | Electronic Theatre Controls, Inc. |
| 元件分類(lèi)： | ADC |
| 英文描述： | Integrated analog-to-digital converter (ADC)with 3 3/4 digits and 42-segment bargraph LCD display |
| 中文描述： | 集成模擬到數(shù)字轉(zhuǎn)換器，3器（ADC）/ 4位和第42段光柱液晶顯示器 |
| 文件頁(yè)數(shù)： | 13/21頁(yè) |
| 文件大?。?/td> | 264K |
| 代理商： | ES51977 |
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13 91年11月28日
3 3/4 AUTO EASY
ES51977
(4) Serial Data Output
The serial data is output two times from SDO pin on each A/D conversion cycle.The
data format satisfy JIS 7BIT transmission code and the baud rate is 2400,it means the
receiver terminal can use RS-232 interface to read data .
single package
A single package include a start bit(0),D0~D6(7 bit), a parity check bit(odd) and a
stop bit(1). All the data stream is consist of 110
×
2 bits. The high and low voltage levels
corresopnd to DGND and V- respectively. SDO remains at 1 (high) when it is inactive.
Hence the start bit (0) could be used as the triggering signal to begain the reading process.
all package
0
p 1
P
0V
-3V
LSB
MSB
D0 ~D6
0
p1
status
digit2
digit3
function
range
option1
CR
LF
digit0
digit1
0
p1 0
p1
0
p1 0
p1 0
p1
0
p1 0
p1 0
p1
0
p1 0
p1
option2
Digit0 ~ 3 data is exactly the receiver display number,but the status, function,range,
option1,option2 data all need written program to judge what the data mean.
Note : LSB bit is sent first,then MSB bit.
The meter always output the current input value to the serial port in spite of HOLD
mode. Each block is repeated twice in one conversion cycle. The detailed data format of
each packet is listed below.
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相關(guān)代理商/技術(shù)參數(shù) |
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|---|---|
| ES51978 | 制造商:CYRUSTEK 制造商全稱(chēng):CYRUSTEK 功能描述:3 3/4 CAP AUTO DMM |
| ES51978Q | 制造商:未知廠家 制造商全稱(chēng):未知廠家 功能描述:3 3/4 CAP AUTO DMM |
| ES51980 | 制造商:CYRUSTEK 制造商全稱(chēng):CYRUSTEK 功能描述:DMM Analog front end with Inrush |
| ES51981 | 制造商:CYRUSTEK 制造商全稱(chēng):CYRUSTEK 功能描述:3 1/2 AUTO DMM |
| ES51981_11 | 制造商:CYRUSTEK 制造商全稱(chēng):CYRUSTEK 功能描述:3 1/2 AUTO DMM |
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