Title :
Low-jitter transmission code for 4-PAM signaling in serial links
Author :
Chen, Hsiao-Yun ; Lin, Chih-Hsien ; Jou, Shyh-Jye
Author_Institution :
Dept. of Electr. Eng., Nat. Central Univ., Chung-li, Taiwan
Abstract :
In this paper, we propose a new low-jitter transmission code for 4-PAM signaling in serial links. It is "8B/10B like code" which preserves all good properties of the 8B/10B code, such as DC balanced of the serial data and guaranteed enough transitions in the symbol stream for clock recovery. Further, it is effective to reduce the jitter of timing recovery and consumes half the bandwidth to transmit in 4-PAM. The design results using TSMC 0.25 μm process shows that it can reduce the jitter of the transition time by ± 25%. The operation speed of the 8B/10B like encoder/decoder is 500 MHz with 16-bit inputs (8 Gbps) and 476 MHz with 16-bit outputs (7.6 Gbps).
Keywords :
block codes; data communication equipment; pulse amplitude modulation; synchronisation; telecommunication signalling; timing jitter; transceivers; 7.6 Gbit/s; 8 Gbit/s; 8B/10B like code; PAM signaling; TSMC process; clock recovery; disparity block; high-speed signaling system; low-jitter transmission code; running disparity; serial links; timing recovery; Bandwidth; Clocks; Data communication; Decoding; Ethernet networks; Optical pulse generation; Phase noise; Signal design; Signal generators; Timing jitter;
Conference_Titel :
Advanced System Integrated Circuits 2004. Proceedings of 2004 IEEE Asia-Pacific Conference on
Print_ISBN :
0-7803-8637-X
DOI :
10.1109/APASIC.2004.1349488
