A 47mW Two-Dimensional Eye Opening Monitor for Multi-Protocol SerDes

Abstract

This paper presents an eye opening monitor (EOM) architecture designed for multi-protocol serial link applications, which is operated at the data rate of 1.25-10Gb/s. The proposed two dimensional EOM provides the variable 248 different masks, based on the phase interpolators (PIs) and the digital-to-analog converters (DACs). The horizontal asymmetric masks are also closer to the real eye. The EOM is achieved in 40nm CMOS technology and supplied with 1.1V. The simulated results show that this design can output a frequency corresponding to the bit error rate (BER). The algorithm that is controlled by digital control logic block V_Control and PI_Control can implement traversal of the variable asymmetric sizes of masks. The total power consumption of the EOM is 47 mW at 10Gb/s in this design.