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2010 23rd International Conference on VLSI Design
An Improved High Resolution CMOS Timing Generator Using Array of Digital Delay Lock Loops
Bangalore, India
January 03-January 07
ISBN: 978-0-7695-3928-7
| ASCII Text | x | ||
| Balaji Srinivasan, Vinay Bhaskar Chandratre, "An Improved High Resolution CMOS Timing Generator Using Array of Digital Delay Lock Loops," VLSI Design, International Conference on, pp. 335-338, 2010 23rd International Conference on VLSI Design, 2010. | |||
| BibTex | x | ||
| @article{ 10.1109/VLSI.Design.2010.37, author = {Balaji Srinivasan and Vinay Bhaskar Chandratre}, title = {An Improved High Resolution CMOS Timing Generator Using Array of Digital Delay Lock Loops}, journal ={VLSI Design, International Conference on}, volume = {0}, year = {2010}, issn = {1063-9667}, pages = {335-338}, doi = {http://doi.ieeecomputersociety.org/10.1109/VLSI.Design.2010.37}, publisher = {IEEE Computer Society}, address = {Los Alamitos, CA, USA}, } | |||
| RefWorks Procite/RefMan/Endnote | x | ||
| TY - CONF JO - VLSI Design, International Conference on TI - An Improved High Resolution CMOS Timing Generator Using Array of Digital Delay Lock Loops SN - 1063-9667 SP335 EP338 A1 - Balaji Srinivasan, A1 - Vinay Bhaskar Chandratre, PY - 2010 KW - Delay Lock Loop VL - 0 JA - VLSI Design, International Conference on ER - | |||
In this paper, an improved high resolution CMOS timing generator using array of digital delay lock loops is presented. The timing generator is implemented as an array of delay locked loops. This architecture enables a timing generator with sub gate delay resolution to be implemented. The proposed Delay Lock Loops use novel start controlled Dual Phase and frequency Detector along with a charge pump where the injected charge approaches zero as the loop approaches lock on the leading edge and the trailing edge of an input clock reference. The delay lock loop locks to both the leading and trailing clock edges as the start controlled dual phase and frequency detector along with charge pump convert the phase difference into voltage, which greatly reduces the timing jitter. In the start controlled dual phase and frequency detector, the start-controlled circuit is used to provide a precise output without the locking problem. The results show that the total delay time between the input and the output of the DLL (Delay Lock Loop) is one clock cycle and all of the delay cells provide precise output without false locking or harmonic locking. Test results show a timing jitter of less than 5 pS for the DLL circuit and has very low phase sensitivity errors. The timing generator implemented as an array of delay locked loops has exponentially reduced the locking time as well avoids false locking or harmonic locking. An experimental proto type was simulated using 0.35µ technology with a supply voltage of 3.3V.
Index Terms:
Delay Lock Loop
Citation:
Balaji Srinivasan, Vinay Bhaskar Chandratre, "An Improved High Resolution CMOS Timing Generator Using Array of Digital Delay Lock Loops," vlsid, pp.335-338, 2010 23rd International Conference on VLSI Design, 2010
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