相邻周期抖动(Cycle-to-cycle jitter),顾名思义,指的是相邻的两个时钟周期之间的周期长度差异,如下图所示。第一个时钟周期长度为9.9ns,与之相邻的第二个时钟周期长度为10.2ns,所以相邻周期抖动为10.2-9.9=0.3ns。实际测量时要选择多个周期样本。需要注意的是相邻周期抖动只关注两个连续周期之间的周期长度变化,并不...
Cycle to Cycle Jitter 在扩频通信等需要扩频时钟（spread spectrum clock）的应用，由于频率本身就是变的...
cycle-to-cyclejittervernierdelaylinevernieroscillatorThis paper presents an on-chip measurement circuit to measure multi-giga bit cycle-to-cycle jitter based on the vernier oscillator (VO), which is inherited from the famous vernier delay line. The calibration method is also given. The circuit ...
A combination of three phase locked loops, is used to control the synchronization between two laser pulses,which gives a RMS timing jitter less than 30?fs. 实验中共采用三套锁相环对它们输出的激光脉冲进行了主动同步控制,最终得到了时间抖动低于30fs的同步精度;由于通过计算机智能监控两台振荡器的相对腔...
[DCDrms,DCDpkpk] = jitterDutyCycle(___,Name=Value) measures DCD using name-value arguments. Unspecified arguments take default values. [DCDrms,DCDpkpk,C] = jitterDutyCycle(___) measures the rms and peak-to-peak DCD using the above arguments. It also estimates the correlation information fo...
The measurement results exhibit the proposed DLL can operate from 6 MHz to 130 MHz and the latency of this DLL is just one clock cycle. From the entire operating frequency range, the maximum rms jitter doesn't exceed 25 ps. The DLL occupies an active area of 880-um×515-um and ...
This detailed T0 contour is required to obtain most of the time-domain perturbation measures used in Vocal Quality assessment (i.e. jitter, shimmer, and many forms of harmonics-to-noise ratios). Any types of cycle-to-cycle PDA can provide the necessary T0 contour for the cal- culation of...
A CMOS clock duty-cycle correction circuit with high precision is described.The circuit is implemented in 90nm CMOS process and power supply voltage is 1V.The maximum frequency is 10GHz.The duty-cycle corrector is used to correct the duty-cycle of the clock to reduce the deterministic jitter...
The proposed chip is fabricated in a TSMC 130-nm CMOS process, and has an operating frequency range from 300 to 600 MHz. At 600 MHz, the power consumption and rms jitter are 2.4 mW and 3.06 ps, respectively. The active area of this chip is 0.3<formula formulatype="inline"><tex ...
One of the ways in which noise manifests itself in ATE systems is in the form of “jitter” on the clock signal. “Jitter” is a timing error of a periodic signal, measurable in seconds, and observable as random movements in time of signal edges from cycle to cycle, relative to their...