Types Of Jitter In Vlsi

As this type of behavior is not present in clocks and oscillators, this form of deterministic jitter is considered a non-factor. There are many ways to categorize jitter, and while it is important to understand what type of jitter you are observing, it is equally as important to be able to measure the different types of jitter.

VLSI concepts explained in a simple and easy to understand way. One of the largest credible collection of VLSI tutorials on the internet. Based on how it is measured in a system, jitter is of following types Period jitter Period jitter is the deviation in cycle time of a clock signal with respect to the ideal period over a number of

Jitter is the variation of the clock period from edge to edge. It can varry - jitter value. From cycle to cycle the period and duty cycle can change slightly due to the clock generation circuitry. This can be modeled by adding uncertainty regions around the rising and falling edges of the clock waveform.

Long Term Jitter. Long-term jitter is a variation of the clock after a long time from its ideal position. For the above example where the consecutive edges should be 0ns 10ns 20ns . . . . . for an ideal clock. But, if the 20th clock edge comes at 202ns then the long-term jitter is 2ns. Different types of Jitter can be understood from the below

VLSI-1 Class Notes Dealing with Clock Skew and Jitter To minimize skew, balance clock paths using Htree or matched- - tree clock distribution structures. If possible, route data and clock in opposite directions eliminates races at the cost of performance. The use of gated clocks to help with dynamic power consumption make jitter worse.

Jitter is the short-term variations of a signal with respect to its ideal position in time. Jitter is the variation of the clock period from edge to edge. It can vary - jitter value. From cycle to cycle the period and duty cycle can change slightly due to the clock generation circuitry. Jitter can also be generated from PLL known as PLL jitter.

jitter. The clock signal may be made slower or faster by the jitter, thus violating the setup or hold time restrictions. The chip or circuit's performance or functionality will suffer as a result. Therefore, it is a important factor in timing analysis and circuit design. How many types of clock jitter are there? Cycle to Cycle Jitter

Random jitter refers to the unpredictable variations in the clock signal, while deterministic jitter arises from known sources such as power supply noise or cross-talk. By considering both types of jitter, designers can obtain a comprehensive understanding of the impact on circuit performance. Frequency-Domain Analysis Phase Noise Analysis

Types of clock jitter Clock jitter can be measured in many forms depending upon the type of application. Clock jitter can be categorized into cycle-to-cycle, period jitter and long term jitter. Modern VLSI designs have very complex architectures and multiple clock sources. Multiple clock domains interact within the chip. Also,

As per the definition of long term jitter, nth edge of clock cannot have a jitter more than long term jitter. So, if I say that a PLL has a long term jitter spec of 6 times that of maximum peak-to-peak period jitter, then a DIV_8 clock will have peak-to-peak jitter equal to 6 times the peak-to-peak period jitter of SOURCE_CLOCK.