Title :
Design of power delivery networks using power transmission lines and pseudo-balanced signaling for multiple I/Os
Author :
Huh, Suzanne ; Swaminathan, Madhavan ; Keezer, David
Author_Institution :
Interconnect & Packaging Center, Georgia Inst. of Technol., Atlanta, GA, USA
Abstract :
Return path discontinuities (RPDs) cause the coupling between signal lines and the power delivery network, resulting in power supply noise and reduced timing and voltage margins at high speed. Prior work focused at reducing the RPD effect, usually through the use of power planes and decoupling capacitors. A new approach to address this issue replaces the plane structure with power transmission lines (PTLs), which removes the RPD effect. By eliminating the RPDs, the power supply noise is minimized. Therefore, voltage and timing margins can be improved to support higher data rates. In this paper, the application of the PTL is extended to the transmission of multiple parallel bits, and the resulting waveforms are compared to those using conventional power planes. Also, a new pseudo-balanced signaling scheme is used to further enhance signal integrity when using the PTL approach.
Keywords :
capacitors; carrier transmission on power lines; interference suppression; power transmission lines; RPD effect; RPD elimination; decoupling capacitors; multiple I/O; power delivery network design; power supply noise; power transmission lines; pseudobalanced signaling scheme; return path discontinuities; signal integrity; signal lines; timing margin reduction; voltage margin reduction; Impedance; Jitter; Noise; Power supplies; Power transmission lines; TV; Vehicles; Power delivery network; balanced signaling; power transmission line; simultaneous switching noise;
Conference_Titel :
Electrical Performance of Electronic Packaging and Systems (EPEPS), 2011 IEEE 20th Conference on
Conference_Location :
San Jose, CA
Print_ISBN :
978-1-4244-9398-2
Electronic_ISBN :
pending
DOI :
10.1109/EPEPS.2011.6100248