论文信息 - 10 GB/s bit-synchronizer circuit with automatic timing alignment by clock phase shifting using quantum-well AlGaAs/GaAs/AlGaAs

10 GB/s bit-synchronizer circuit with automatic timing alignment by clock phase shifting using quantum-well AlGaAs/GaAs/AlGaAs

A bit-synchronizer circuit is presented which operated up to a bit rate of Gb/s. The circuit comprises two master-slave flip -flops for data sampling, two EXCLUSIVE-OR gates for clock phase adjustment, an active signal splitter, and an EXCLUSIVE-OR gate for data transition detection. The gain of the EXCLUSIVE-OR phase comparator circuit is measured to be 302 mV/rad for a 1010-bit sequence. The margins for monotonous phase comparison are +or-54 degrees relative to the 'in bit cell center' position of the sampling clock edge. The circuit is fabricated by using an enhancement/depletion 0.3 mu m recessed-gate AlGaAs/GaAs/AlGaAs quantum-well FET process. The chip has a power dissipation of 230 mW at a supply voltage of 1.90 V. >

[1] Myung-Hyun Lee,et al. Self-correcting clock recovery circuit with improved jitter performance , 1987 .

[2] M. Berroth,et al. 11.6 Gbps 1:4 demultiplexer using double pulse doped quantum well GaAs/AlGaAs transistors , 1991 .

[4] S. Whitt. Automatic timing alignment for regenerative repeaters , 1985 .

[5] T. Jakobus,et al. E-Beam Direct-Write in a Dry-Etched Recess Gate HEMT Process for GaAs/AlGaAs Circuits , 1990 .

[6] P. O'Connor,et al. A PLL-based 2.5-Gb/s GaAs clock and data regenerator IC , 1991 .

[7] Erdal Panayirci,et al. Analysis of a serial symbol timing recovery technique employing Exclusive-OR circuit , 1990, IEEE Trans. Commun..

[8] K. Yamaguchi,et al. Smart optical receiver with automatic decision threshold setting and retiming phase alignment , 1989 .

[9] Hans Ransijn,et al. A 2.5 Gb/s GaAs Clock and Data Regenerator I.C. , 1990, ESSCIRC '90: Sixteenth European Solid-State Circuits Conference.

[10] M. Ludwig,et al. 8•2 GHz bandwidth monolithic integrated optoelectronic receiver using MSM photodiode and 0•5 μm recessed-gate AlGaAs/GaAs HEMTs , 1991 .

[11] C. Hogge. A self correcting clock recovery curcuit , 1985, Journal of Lightwave Technology.