N-path filter

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A 125–600-MHz IF 75-dB DR Partially Time-Interleaved Bandpass DSM Based on Passive $N$ -Path Filters

A 125–600-MHz IF 75-dB DR Partially Time-Interleaved Bandpass DSM Based on Passive $N$ -Path Filters 150 150
Author(s): Wei Jin, Kong-Pang Pun

Abstract:

This work presents a sixth-order partially time-interleaved bandpass delta-sigma modulator (BP DSM) for direct intermediate-frequency (IF) digitization. There are three resonators, and each of them is built with a passive $N$ -path filter; while two open-loop operational transconductance amplifiers (OTAs) are inserted in between to realize the loop filter. The …

Published in: IEEE Journal of Solid-State Circuits
Page(s): 1 – 15
Year of Publication: 2024
Electronic ISSN: 1558-173X
DOI: 10.1109/JSSC.2024.3394257
Publisher: IEEE

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A Multichannel Injection-Locked OOK Transmitter With Current Mode Edge-Combining Power Amplifier

A Multichannel Injection-Locked OOK Transmitter With Current Mode Edge-Combining Power Amplifier 150 150
Author(s): Sheng-Kai Chang, Zhi-Wei Lin, Kuang-Wei Cheng

Abstract:

This letter introduces an ultralow-power ON–OFF keying (OOK) wireless transmitter incorporating innovative multiphase injection locking and frequency multiplication techniques. The transmitter leverages a current mode class-D edge-combining power amplifier, ensuring high-energy efficiency in frequency multiplication to generate the carrier frequency. With a primary focus on facilitating multichannel support for …

Published in: IEEE Solid-State Circuits Letters
Page(s): 111 – 114
Year of Publication: 2024
Electronic ISSN: 2573-9603
DOI: 10.1109/LSSC.2024.3375329
Publisher: IEEE

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