Abstract: A laser module designer can use a fixed resistor, mechanical pot, digital pot, or a digital-to-analogconverter (DAC) to control the laser driver's modulation and bias currents. The advantages of a programmablemethod (POT or DAC) are that the manufacturing process can be automated and digital control can be applied(e.g., to compensate for temperature). Using POTs can be a more simple approach than a DAC. There can be aslight cost advantage to using a POT, but this is usually not significant relative to other pieces of the design.Using a DAC can offer advantages, including improved linearity (translating to ease of software implementationand ability to hit the required accuracy), increased board density, a wider range of resolutions, a betteroptimization range, ease of use with a negative voltage laser driver, and unit-to-unit Consistency
標簽：
POT
DAC
應用筆記
校準
上傳時間：
2013-11-13
上傳用戶：ca05991270
Purpose of this White Paper
This white paper describes a collection of standards, conventions, and guidelines for writing solid Java
code. They are based on sound, proven software engineering principles that lead to code that is easy to
understand, to maintain, and to enhance. Furthermore, by following these coding standards your
productivity as a Java developer should increase remarkably – Experience shows that by taking the time to
write high-quality code right from the start you will have a much easier time modifying it during the
development process. Finally, following a common set of coding standards leads to greater Consistency,
making teams of developers significantly more productive.
標簽：
conventions
collection
describes
standards
上傳時間：
2014-02-12
上傳用戶：123啊
As information technology is more and more in-depth and wide range of applications, management information system has been gradually implemented in the technical maturity. Management Information System is a continuous development of new disciplines. Library Management System is a typical management information system (MIS), the development includes the background of the establishment and maintenance of database and front-end application development aspects. Database requested data Consistency, integrity and the security of the data, and front-end applications require complete functions, such as easy-to-use.
After analysis, I chose companies MICROSOFT VISUAL BASIC and Access prospects were as database development tools and background. With the provision of the various object-oriented development tools, in particular the data window convenient and simple objects developed intelligent customer satisfaction systems.
標簽：
more
applications
information
technology
上傳時間：
2013-11-29
上傳用戶：xymbian
