Delay-locked loop based clock and data recovery with wide operating range and low jitter in a 65-nm CMOS process

2016 ◽  
Vol 45 (6) ◽  
pp. 851-858 ◽  
Author(s):  
Yuan Wang ◽  
Yuequan Liu ◽  
Song Jia ◽  
Xing Zhang
Electronics ◽  
2021 ◽  
Vol 10 (2) ◽  
pp. 177
Author(s):  
Dongjun Park ◽  
Sungwook Choi ◽  
Jongsun Kim

An all-digital multiplying delay-locked loop (MDLL)-based clock multiplier featuring a time-to-digital converter (TDC) to achieve fast power-on capability is presented. The proposed MDLL adopts a new offset-free cyclic Vernier TDC to achieve a fast lock time of 15 reference clock cycles while maintaining a wide detection range and high resolution. The proposed offset-free TDC also uses a correlated double sampling technique to remove mismatch and offset issues, resulting in low jitter characteristics. After the MDLL is quickly locked, the TDC is turned off, and it goes into delta-sigma modulator (DSM)-based sequential tracking mode to reduce power consumption and improve jitter performance. Implemented in a 65-nm 1.0-V CMOS process, the proposed MDLL occupies an active area of 0.043 mm2 and generates a 2.4-GHz output clock from a 75-MHz reference clock (multiplication factor N = 32). It achieves an effective peak-to-peak jitter of 9.4 ps and consumes 3.3 mW at 2.4 GHz.


2009 ◽  
Vol 45 (16) ◽  
pp. 808 ◽  
Author(s):  
K. Kishine ◽  
H. Inaba ◽  
Ma. Nakamura ◽  
Mi. Nakamura ◽  
Y. Ohtomo ◽  
...  

This paper proposes design and implementation of low power Delay Locked Loop Architecture, with dynamic Multiplexer based Phase Frequency Detector with minimum locking time. Clock and data recovery systems are employed to derive the clocking information to correctly decode the transmitted data at the receiver. Delay Locked Loop is one of the most important clock recovery systems. The DLL architecture is designed using Cadence Virtuoso 180nm Technology with 1.8V power supply. The proposed DLL with Multiplexer based phase frequency detector shows significant reduction in power dissipation by 10% compared to DLL designed using D-FF based PFD and achieves locking state within 10 clock cycles with minimum jitter of 4.84326ps, measured within clock frequency range of 100-250MHz.


2015 ◽  
Vol 50 (11) ◽  
pp. 2603-2612 ◽  
Author(s):  
Sang-Hyeok Chu ◽  
Woorham Bae ◽  
Gyu-Seob Jeong ◽  
Sungchun Jang ◽  
Sungwoo Kim ◽  
...  

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