A 32/16 Gb/s 4/2-PAM transmitter with PWM pre-Emphasis and 1.2 Vpp per side output swing in 0.13-μm CMOS

A dual-mode 4/2-PAM transmitter is described that extends pulse-width modulated pre-emphasis to data rates of 16 Gb/s and 32 Gb/s in 2-PAM and 4-PAM modes respectively. Implemented in a 0.13-mum CMOS process to accommodate the wide output swing of 1.2 Vpp per side, the transmitter compensates for 30 dB and 9 dB of loss at one-half the symbol rate in 2-PAM and 4-PAM modes respectively.

[1]  V. Stojanovic,et al.  A 24Gb/s Software Programmable Multi-Channel Transmitter , 2007, 2007 IEEE Symposium on VLSI Circuits.

[2]  T. Lee,et al.  A 0.4-/spl mu/m CMOS 10-Gb/s 4-PAM pre-emphasis serial link transmitter , 1999 .

[3]  D.-U. Li,et al.  10-13.6 Gbit/s 0.18μm CMOS modulator driver with differential 8Vpp output swing , 2005 .

[4]  Eric A. M. Klumperink,et al.  Pulse-width modulation pre-emphasis applied in a wireline transmitter, achieving 33 dB loss compensation at 5-Gb/s in 0.13-μm CMOS , 2006, VLSIC 2006.

[5]  B. Nauta,et al.  Pulse-width modulation pre-emphasis applied in a wireline transmitter, achieving 33 dB loss compensation at 5-Gb/s in 0.13-/spl mu/m CMOS , 2006, IEEE Journal of Solid-State Circuits.

[6]  Sorin P. Voinigescu,et al.  A 1.5V 20/30 Gb/s CMOS backplane driver with digital pre-emphasis , 2004, Proceedings of the IEEE 2004 Custom Integrated Circuits Conference (IEEE Cat. No.04CH37571).

[7]  Eric A. M. Klumperink,et al.  Wireline equalization using pulse-width modulation , 2006, IEEE Custom Integrated Circuits Conference 2006.

[8]  E. Sackinger,et al.  A 3-GHz 32-dB CMOS limiting amplifier for SONET OC-48 receivers , 2000, IEEE Journal of Solid-State Circuits.

[9]  D.A. Johns,et al.  A CMOS 10-gb/s power-efficient 4-PAM transmitter , 2004, IEEE Journal of Solid-State Circuits.

[10]  T. Toifl,et al.  A 25Gb/s PAM4 transmitter in 90nm CMOS SOI , 2005, ISSCC. 2005 IEEE International Digest of Technical Papers. Solid-State Circuits Conference, 2005..

[11]  Shyh-Jye Jou,et al.  Multi-Gigabit Pre-Emphasis Design and Analysis for Serial Link , 2005, IEICE Trans. Electron..