A Digital Differential Transmitter with Pseudo-LVDS Output Driver and Digital Mismatch Calibration

Jun-Hyun BAE; Sang-Hune PARK; Jae-Yoon SIM; Hong-June PARK

doi:10.1587/transele.E93.C.132

IEICE Transactions on Electronics

Online ISSN : 1745-1353
Print ISSN : 0916-8524

Regular Section

A Digital Differential Transmitter with Pseudo-LVDS Output Driver and Digital Mismatch Calibration

Jun-Hyun BAE, Sang-Hune PARK, Jae-Yoon SIM, Hong-June PARK

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Keywords: differential, digital transmitter, termination

JOURNAL RESTRICTED ACCESS

2010 Volume E93.C Issue 1 Pages 132-135

DOI https://doi.org/10.1587/transele.E93.C.132

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Abstract

A digital 3Gbps 0.2V differential transmitter is proposed using a voltage-mode pseudo-LVDS output driver. The delay mismatch between two pre-drivers is digitally calibrated by a modified digital DLL with the duty cycle correction. The height and width of eye opening are improved by 103% and 46%, respectively. The power consumption is 11.4mW at 1.2V with 0.18µm process.

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