impedance

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A 24 to 30-GHz Phased Array Transceiver Front End With 2.8 to 3.1-dB RX NF and 22 to 24% TX Peak Efficiency

A 24 to 30-GHz Phased Array Transceiver Front End With 2.8 to 3.1-dB RX NF and 22 to 24% TX Peak Efficiency 150 150
Author(s): Wooram Lee, Caglar Ozdag, Jean-Olivier Plouchart, Alberto Valdes-Garcia, Bodhisatwa Sadhu

Abstract:

This article presents a compact 24–30-GHz phased array transceiver (TRX) front end (FE) with high transmitter (TX) power efficiency and low receiver (RX) noise figure (NF) in a 130-nm bipolar CMOS (BiCMOS) technology supporting different 5th generation mobile network (5G) frequency range 2 (FR2) bands (n257, n258, and n261). We introduce …

Published in: IEEE Journal of Solid-State Circuits
Page(s): 1 – 17
Year of Publication: 2024
Electronic ISSN: 1558-173X
DOI: 10.1109/JSSC.2024.3380649
Publisher: IEEE

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A Single-Ended Impedance-Matched Transmitter With Single Ring-Oscillator-Based Time-Domain ZQ Calibration for Memory Interfaces

A Single-Ended Impedance-Matched Transmitter With Single Ring-Oscillator-Based Time-Domain ZQ Calibration for Memory Interfaces 150 150
Author(s): Jaekwang Yun, Sangyoon Lee, Jaewook Kim, Joo-Hyung Chae, Suhwan Kim, Yong-Un Jeong

Abstract:

The proposed single-ended transmitter for memory interfaces is an impedance-matched transmitter that utilizes a single ring-oscillator-based time-domain ZQ calibration. This ZQ calibration technique eliminates the offsets by using a gain-controlled ring oscillator with late-case forcing, resulting in low maximum/average error rates. The transmitter incorporates a phase equalization method to …

Published in: IEEE Journal of Solid-State Circuits
Page(s): 1 – 12
Year of Publication: 2024
Electronic ISSN: 1558-173X
DOI: 10.1109/JSSC.2024.3375858
Publisher: IEEE

View on IEEE Xplore

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