This site uses cookies.
Some of these cookies are essential to the operation of the site,
while others help to improve your experience by providing insights into how the site is being used.
For more information, please see the ProZ.com privacy policy.
This person has a SecurePRO™ card. Because this person is not a ProZ.com Plus subscriber, to view his or her SecurePRO™ card you must be a ProZ.com Business member or Plus subscriber.
附属机构
This person is not affiliated with any business or Blue Board record at ProZ.com.
English英语译成Chinese汉语: Jitter General field: 技术/工程设计 Detailed field: 电子/电子工程
原文文本 - English英语 Phase-locked loops are frequently used to multiply a reference clock up to a higher frequency, as shown in Figure 7.
In theory, the jitter at the output is equal to the jitter on the reference clock multiplied by the divide ratio (in this case, N/R), within the loop bandwidth.
Well outside the loop bandwidth, the jitter should be determined by the jitter of the loop’s VCO.
However, the theory can break down if some other source of jitter, such as power supply noise, creeps into the design.
翻译文本 - Chinese汉语 锁相环常用于将参考时钟倍频，产生一个更高频率的时钟，如图7所示。
理论上，在环路带宽内，输出端的抖动等于参考时钟的抖动乘以分频系数（此例中为N/R）。
在环路带宽以外，抖动应当取决于环路中压控振荡器的抖动。
不过，如果设计中还引入了其它抖动源，如电源噪声，这个理论就说不通了。
English英语译成Chinese汉语: Cloud Computing General field: 技术/工程设计 Detailed field: IT（信息技术）
原文文本 - English英语 What is ‘cloud computing’?
Many people are confused as to exactly what cloud computing is, especially as the term can be used to mean almost anything. Roughly, it describes highly scalable computing resources provided as an external service via the internet on a pay-as-you-go basis. The cloud is simply a metaphor for the internet, based on the symbol used to represent the worldwide network in computer network diagrams.
Economically, the main appeal of cloud computing is that customers only use what they need, and only pay for what they actually use. Resources are available to be accessed from the cloud at any time, and from any location via the internet. There’s no need to worry about how things are being maintained behind the scenes - you simply purchase the IT service you require as you would any other utility. Because of this, cloud computing has also been called utility computing, or ‘IT on demand’.
This new, web-based generation of computing utilises remote servers housed in highly secure data centres for data storage and management, so organisations no longer need to purchase and look after their IT solutions in-house.
