Title
A 10 Gbits/s/pin DFE-Less Graphics DRAM Interface With Adaptive-Bandwidth PLL for Avoiding Noise Interference and CIJ Reduction Technique.
Abstract
A 10 Gbits/s/pin graphics DRAM interface is developed in 65-nm CMOS technology. Several design techniques are proposed for high-speed operation in a noisy environment. A fast precharging data sampler guarantees high-speed sampling without the need for a decision feedback equalizer. In order to increase the data sampling margin, the PLL bandwidth is optimized depending on the system noises, which reduces the clock jitter by up to 55.1%. The crosstalk-induced jitter (CIJ) reduction technique suppresses the DQs jitter by employing the suggested training sequence for the GDDR5 interface. Pre- and de-emphasis are merged in one auxiliary driver. This chip operates at 10 Gbits/s/pin and exhibits a data eye opening of 0.78 UI with the CIJ reduction technique. The power consumptions of the TX and RX are 8.28 and 5.5 pJ/b/channel, respectively.
Year
DOI
Venue
2017
10.1109/TVLSI.2016.2580713
IEEE Trans. VLSI Syst.
Keywords
Field
DocType
Clocks,Random access memory,Phase locked loops,Jitter,Bandwidth,Delays,Graphics
Dram,Phase-locked loop,Computer science,Communication channel,Real-time computing,Electronic engineering,CMOS,Chip,Bandwidth (signal processing),Interference (wave propagation),Jitter,Computer hardware
Journal
Volume
Issue
ISSN
25
1
1063-8210
Citations 
PageRank 
References 
0
0.34
9
Authors
4
Name
Order
Citations
PageRank
Junyoung Song14011.42
Hyun-Woo Lee200.34
Sewook Hwang34110.43
Chulwoo Kim439774.58