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在集成电路中,通常采用T型解码网络实现数字量往模拟的转换,再利用运算放大器完成模拟电流变为模拟电压的转换。所以,要把一个数字量变为模拟电压,实际上需要两个环节,...
在集成电路中,通常采用T型解码网络实现数字量往模拟的转换,再利用运算放大器完成模拟电流变为模拟电压的转换。所以,要把一个数字量变为模拟电压,实际上需要两个环节,先把数字量变为模拟电流,这是由D/A转换器完成的;再将模拟电流变成模拟电压,这是由运算放大器完成的。有时D/A转换器芯片只包含前一个环节,有些D/A转换器则包含两个环节,用前一种芯片时,需要外接运算放大器才能得到模拟电压。-In integrated circuits, the usual T-decode digital networks to analog conversion, and then complete the simulation of the use of op-amp current into the analog voltage conversion. Therefore, it is necessary to become a digital simulation of voltage, in fact, need two links, first into a digital simulation of currents, this is determined by D/A converters completed then simulate current into the analog voltage, this is determined by computing completed amplifier. Sometimes D/A converter chip contains only a part before, some D/A converter includes two aspects, before a chip, the need for external op-amp voltage can be simulated.
- 2022-03-04 04:10:59下载
- 积分:1
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设计要求:
出于不同目的的旅客对交通工具有不同的要求.例如,因公出差的旅客希望在旅途中的时间尽可能短,出门旅游的游客则期望旅费尽可能省,而老年旅客则要求中...
设计要求:
出于不同目的的旅客对交通工具有不同的要求.例如,因公出差的旅客希望在旅途中的时间尽可能短,出门旅游的游客则期望旅费尽可能省,而老年旅客则要求中转次数最少.编制一个全国城市间的交通咨询程序,为旅客提供两种或三种最优决策的交通咨询.
//请保留此信息,谢谢
1.需求分析:
(1)提供对城市信息进行编辑(如添加或删除)的功能.
(2)城市之间有两种交通工具:火车和飞机.提供对列车时刻表和飞机航班进行编辑(增设或删除)的功能.
(3)提供两种最优决策:最快到达或最省钱到达.全程只考虑一种交通工具.
-design requirements : For different purposes to transport passengers have different requirements. For example, on official business travelers in the journey time as short as possible away tourists expect possible travel provinces, and elderly passengers asked the least number of transit. establishment of a national inter-city traffic advisory proceedings, for the visitors two or three best decision of the Transport Advisory.// Please keep this information, I would like to thank one. demand analysis : (1) to provide information on the city for editing (such as add or delete) function. (2) Town between the two modes : Train and aircraft. Schedules for the train and flights for editing (created or deleted) function. (3)
- 2022-03-23 02:35:30下载
- 积分:1
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汇编程序设计方法!
汇编程序设计方法!-assembler design!
- 2022-03-17 04:39:10下载
- 积分:1
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AT89C2051时钟程序
AT89C2051时钟程序 -AT89C2051 clock procedures
- 2023-04-03 13:45:03下载
- 积分:1
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Windows Environment 32
Windows环境下32位汇编语言程序设计配套书源码第5章-Windows Environment 32-bit assembly language programming book source package in Chapter 5
- 2023-01-06 23:55:04下载
- 积分:1
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这个代码是用C语言编写的,具有记事本的常用功能,代码完整,功能完善...
这个代码是用C语言编写的,具有记事本的常用功能,代码完整,功能完善-This code is written using C language, with the commonly used Notepad features, code integrity, and function
- 2022-09-08 03:45:03下载
- 积分:1
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飞利浦的80C552的AD采集测试程序,并通过串口发送到PC机
飞利浦的80C552的AD采集测试程序,并通过串口发送到PC机-An A/D Transfermision Program which used Phillips 80C552 chip,And send data to PC by serial port.
- 2022-03-23 22:58:47下载
- 积分:1
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一个汇编与VC结合的程序代码 本程序旨在展示一下怎样在VC中嵌入汇编语言,来减少程序的大小。...
一个汇编与VC结合的程序代码 本程序旨在展示一下怎样在VC中嵌入汇编语言,来减少程序的大小。- An assembly and VC union procedure code this procedure is for
the purpose of demonstrating how inserts the assembly language in VC,
reduces the procedure the size.
- 2022-01-25 20:46:37下载
- 积分:1
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51控制led顺序点亮,
通过控制p0.0使其能按不同的顺序
51控制led顺序点亮,
通过控制p0.0使其能按不同的顺序
-Led the order of 51 to control light, through the control to enable them to p0.0 different order
- 2023-04-29 11:10:04下载
- 积分:1
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这是一个显示“中国北京”字样的程序,按“q”键退出。
这是一个显示“中国北京”字样的程序,按“q”键退出。-This is a show
- 2022-02-21 06:18:05下载
- 积分:1