A wide-range and fixed latency of one clock cycle delay-locked loop

2003 ◽  
Author(s):  
Hsiang-Hui Chang ◽  
Jyh-Woei Lin ◽  
Shen-Iuan Liu
Keyword(s):  
Clock Cycle ◽  
Delay Locked Loop ◽  
Wide Range

A wide-range delay-locked loop with a fixed latency of one clock cycle

2002 ◽  
Vol 37 (8) ◽  
pp. 1021-1027 ◽  
Author(s):  
Hsiang-Hui Chang ◽  
Jyh-Woei Lin ◽  
Ching-Yuan Yang ◽  
Shen-Iuan Liu
Keyword(s):  
Clock Cycle ◽  
Delay Locked Loop ◽  
Wide Range

scholarly journals High-Accuracy Programmable Timing Generator with Wide-Range Tuning Capability

VLSI Design ◽  
2013 ◽  
Vol 2013 ◽  
pp. 1-6 ◽  
Author(s):  
Ting-Li Chu ◽  
Sin-Hong Yu ◽  
Chorng-Sii Hwang
Keyword(s):  
Closed Loop ◽  
Clock Cycle ◽  
High Accuracy ◽  
Fine Tuning ◽  
Chip Area ◽  
Delay Locked Loop ◽  
Wide Range ◽  
Instantaneous Switching ◽  
Loop Scheme ◽  
Reference Clock

In this paper, a high-accuracy programmable timing generator with wide-range tuning capability is proposed. With the aid of dual delay-locked loop (DLL), both of the coarse- and fine-tuning mechanisms are operated in precise closed-loop scheme to lessen the effects of the ambient variations. The timing generator can provide sub-gate resolution and instantaneous switching capability. The circuit is implemented and simulated in TSMC 0.18 μm 1P6M technology. The test chip area occupies 1.9 mm2. The reference clock cycle can be divided into 128 bins by interpolation to obtain 14 ps resolution with the clock rate at 550 MHz. The INL and DNL are within −0.21~+0.78 and −0.27~+0.43 LSB, respectively.

scholarly journals A Novel Ultrasonic TOF Ranging System Using AlN Based PMUTs

Micromachines ◽  
2021 ◽  
Vol 12 (3) ◽  
pp. 284
Author(s):  
Yihsiang Chiu ◽  
Chen Wang ◽  
Dan Gong ◽  
Nan Li ◽  
Shenglin Ma ◽  
...  
Keyword(s):  
Clock Cycle ◽  
High Accuracy ◽  
Ultrasonic Waves ◽  
Oxide Semiconductor ◽  
Average Error ◽  
Cmos Process ◽  
Clock Frequency ◽  
Time Frequency ◽  
Range Finding ◽  
Wide Range

This paper presents a high-accuracy complementary metal oxide semiconductor (CMOS) driven ultrasonic ranging system based on air coupled aluminum nitride (AlN) based piezoelectric micromachined ultrasonic transducers (PMUTs) using time of flight (TOF). The mode shape and the time-frequency characteristics of PMUTs are simulated and analyzed. Two pieces of PMUTs with a frequency of 97 kHz and 96 kHz are applied. One is used to transmit and the other is used to receive ultrasonic waves. The Time to Digital Converter circuit (TDC), correlating the clock frequency with sound velocity, is utilized for range finding via TOF calculated from the system clock cycle. An application specific integrated circuit (ASIC) chip is designed and fabricated on a 0.18 μm CMOS process to acquire data from the PMUT. Compared to state of the art, the developed ranging system features a wide range and high accuracy, which allows to measure the range of 50 cm with an average error of 0.63 mm. AlN based PMUT is a promising candidate for an integrated portable ranging system.

A wide range delay locked loop for low power and low jitter applications

2017 ◽  
Vol 46 (3) ◽  
pp. 401-414 ◽  
Author(s):  
Motahhareh Estebsari ◽  
Mohammad Gholami ◽  
Mohammad Javad Ghahramanpour
Keyword(s):  
Low Power ◽  
Delay Locked Loop ◽  
Wide Range ◽  
Low Jitter

An all-analog multiphase delay-locked loop using a replica delay line for wide-range operation and low-jitter performance

2000 ◽  
Vol 35 (3) ◽  
pp. 377-384 ◽  
Author(s):  
Yongsam Moon ◽  
Jongsang Choi ◽  
Kyeongho Lee ◽  
Deog-Kyoon Jeong ◽  
Min-Kyu Kim
Keyword(s):  
Delay Line ◽  
Delay Locked Loop ◽  
Wide Range ◽  
Low Jitter

Wide‐range harmonic lock detector with real‐time delay measurement of delay‐locked loop

2015 ◽  
Vol 51 (2) ◽  
pp. 136-138
Author(s):  
Sangseob Kim ◽  
Chang‐Hee Hyoung ◽  
Kyoung‐Hwan Park
Keyword(s):  
Time Delay ◽  
Real Time ◽  
Delay Locked Loop ◽  
Delay Measurement ◽  
Wide Range ◽  
Time Delay Measurement
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