DOAJ Open Access 2023

Sub-kHz Clock Generation From Room Illumination on Standalone CMOS LSI Chips

Kenta Yamamura Takaya Sugiura Yuta Watanabe Shiun Yamakiri Nobuhiko Nakano

Abstrak

This study proposes a sub-kHz clock generator by the room light illumination designed on-chip CMOS LSI chips. It generates a clock from a flicker in room light by receiving on-chip integrated photovoltaic cell, and extracts by low-pass filters, a comparator, Schmidt trigger and D-flip-flop to shape to digital signal. The system implements two photovoltaic cells of a large cell for power generation and a small cell for photo-detection that enables standalone operations. The system was designed on 0.18 <inline-formula><tex-math notation="LaTeX">$\mu$</tex-math></inline-formula>m standard CMOS process, and both the simulation and experimental results validated the operation. By adding D-flip-flops at the output enables to modify the clock to <inline-formula><tex-math notation="LaTeX">$1/n$</tex-math></inline-formula> values that expands the applications.

Topik & Kata Kunci

Applied optics. Photonics Optics. Light

Penulis (5)

Kenta Yamamura

Takaya Sugiura

Yuta Watanabe

Shiun Yamakiri

Nobuhiko Nakano

Format Sitasi

APA MLA BibTeX

Yamamura, K., Sugiura, T., Watanabe, Y., Yamakiri, S., Nakano, N. (2023). Sub-kHz Clock Generation From Room Illumination on Standalone CMOS LSI Chips. https://doi.org/10.1109/JPHOT.2023.3317703

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Informasi Jurnal

Tahun Terbit: 2023
Sumber Database: DOAJ
DOI: 10.1109/JPHOT.2023.3317703
Akses: Open Access ✓