Abstract
This paper investigates the drawbacks of widely used rectangular eye-opening monitors (EOMs) and proposes a new power-efficient half hexagon EOM for Gbps serial links. The proposed EOM outperforms rectangular EOMs by providing a better control of data jitter at the edge of data eyes and by eliminating unnecessary errors flagged by rectangular EOMs. The effectiveness of the proposed EOM is evaluated using a serial link implemented in IBM 130 nm 1.2 V CMOS technology. For purpose of comparison, rectangular EOMs with the same data link are also designed and evaluated. The data links are analyzed using Spectre from Cadence Design Systems with BSIM 4 device models. Simulation results demonstrate that the proposed EOM provides a better detection of the violation of the minimum eye-opening mask over temperature range −20 to 80 °C and at all process corners as compared with rectangular EOM, with 50 % reduction in power and silicon consumption.
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Zhao, Z., Wang, J., Li, S., Chen, J. (2007). A 2.5-Gb/s 0.13 μm CMOS current mode logic transceiver with pre-emphasis and equalization. Proceedings of International Conference ASIC, (pp.368–371) Oct 2007.
Kao, S., Liu, S. (2010). A 20-Gb/s transmitter with adaptive pre-emphasis in 65-nm CMOS technology. IEEE Transaction of Circuits and Systems II, 57(5), 319–323.
Dally, J., Poulton, J. (1997). Transmitter equalization for 4-gbps signaling. IEEE Micro, 17(1), 48–56.
Ying, Y., Liu, S. (2011, Feb). A 20Gb/s digitally adaptive equalizer/DFE with blind sampling. IEEE International Solid-State Circuits Conference Digital Technology Papers (pp.444–446) 2011.
Dickson, T., Bulzacchelli, J., Friedman, D. (2009). A 12Gb/s 11 mW half-rate sampled 5-tap decision feedback equalizer with current-integrating summers in 45-nm SOI CMOS technology. IEEE Journal of Solid-State Circuits, 44(4), 1298–1230.
Bien, F., Kim, H., Hur, Y., Maeng, M., Cha, J., Chandramouli, S., Gebara, E., Laskar, J. (2006). A 10 Gb/s reconfigurable CMOS equalizer employing a transition detector-based output monitoring technique for band-limited serial links. IEEE Transactions on Microwave Theory and Techniques, 54(12), 4538–4547.
Hyoungsoo, K., de Ginestous, J., Bien, F., Lee, K., Chandramouli, S., Hur, Y., Scholz, C., Gebara, E., Laskar, J. (2007). An electronic dispersion compensator (EDC) with an analog eye-opening monitor (EOM) for 1.25 Gb/s gigabit passive optical network (GPON) upstream links. IEEE Transactions on Microwave Theory and Techniques, 55(12), 2942–2950.
Hong, D., Cheng, K. (2007). An accurate jitter estimation technique for efficient high speed I/O testing. Proceedings of the Asian Test Symposium, (pp.224–229) Oct 2007.
Chen, L., Zhang, X., Spagna, F. (2009, Feb). A scalable 3.6-5.2 mW 5-to-10 Gb/s 4-tab DFE in 32 nm. IEEE International Solid-State Circuits Conference Digital Technology Papers, (pp.180–181).
Spagna, F., Chen, L., Deshpande, M., Fan, Y., Gambetta, D., Gowder, S., Iyer, S., Kumar, R., Kwok, P., Krishnamurthy, R., Lin, C., Mohanavelu, R., Nicholson, R., Ou, J., Pasquarella, M., Prasad, K., Rustam, H., Tong, L., Tran, A., Wu, J., Zhang, X. (2010, Feb). A 78 mw 11.8Gb/s serial link transceiver with adaptive RX equalization and baud-rate CDR in 32 nm CMOS. IEEE International Solid-State Circuits Conference Digital Technology Papers, (pp. 366–367).
Pozzoni, M., Erba, S., Viola, P., Pisati, M., Depaoli, E., Sanzogni, D., Brama, R., Baldi, D., Repossi, M., Svelto, F. (2009). A multi-standard 1.5 to 10 Gb/s latch-based 3-tap DFE receiver with a SSC tolerant CDR for serial backplane communication. IEEE Journal of Solid-State Circuits, 44(4), 1306–1315.
Analui, B., Rylyakov, A., Rylov, S., Meghelli, M., Hajimiri, A. (2005). A 10-Gb/s two-dimensional eye-opening monitor in 0.13-μm standard CMOS. IEEE Journal of Solid-State Circuits, 40(12), 2689–2699.
Noguchi, H., Yoshida, N., Uchida, H., Ozaki, M., Kanemitsu, S., Wada, S. (2008). A 40-Gb/s CDR circuit with adaptive decision-point control based on eye-opening monitor feedback. IEEE Journal of Solid-State Circuits, 43(12), 2929–2938.
Bhatta, D., Kim, K., Gebara, E., Laskar, J. (June 2009). A 10 Gb/s two dimensional scanning eye opening monitor in 0.18μm CMOS process. Proceedings on IEEE International Microwave Symposium Digest (pp.1141–1144).
Fayed, A., Ismail, M. (2008). A low-voltage low-power CMOS analog adaptive equalizer for UTP-5 cables. IEEE Transactions on Circuits and Systems I., 55(2), 480–495.
Marcu, M., Durbha, S., Gupta, S. (2008). Duty-cycle distortion and specifications for jitter test-signal generation. Proceedings on IEEE International Symposium Electromagnetic Compatibility (pp.1–4).
Carusone, T., Johns, D., Martin, K. (2008). Analog integrated circuit design. New York: Wiley
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This Project was financially supported by Natural Sciences and Engineering Research Council of Canada and in part by computer-aided design tools from CMC Microsystems, Kingston, ON, Canada.
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AL-Taee, A.R., Yuan, F. & Ye, A. A power-efficient 2-dimensional on-chip eye-opening monitor for Gbps serial links. Analog Integr Circ Sig Process 76, 117–128 (2013). https://doi.org/10.1007/s10470-013-0083-1
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DOI: https://doi.org/10.1007/s10470-013-0083-1