Title :
Interconnect channel characteristics favoring double-edge pulsewidth modulation
Author :
Wang, Wei ; Buckwalter, James F.
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. of California at San Diego, La Jolla, CA, USA
Abstract :
M-ary pulsewidth modulation (M-PWM) and double-edge pulsewidth modulation (DPWM) are compared to non-return-to-zero (NRZ) modulation in bandwidth-limited channels. DPWM features spectral characteristics that concentrate energy at lower frequencies compared to NRZ for a given data rate. Here, channel characteristics are studied that favor DPWM transmission. Each modulation format is compared at 10 Gb/s over two different electrical channels to study the signal integrity with respect to a fixed data rate and fixed minimum pulsewidth.
Keywords :
input-output programs; pulse width modulation; DPWM; M-PWM; NRZ; bandwidth-limited channels; bit rate 10 Gbit/s; chip-to-chip serial I/O face substantial scaling problems; double-edge pulsewidth modulation; electrical channels; interconnect channel characteristics; nonreturn-to-zero modulation; signal integrity; Bandwidth; Bit rate; Optical signal processing; Pulse width modulation; Signal resolution; Pulse width modulation; Serial I/O; Spectral analysis;
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.2011.6100211
