Manages microphone inputs and digitizes voice signals.
Since the official PDF is restricted, the hardware community has mapped the CX31993 in USB-C dongles (like the Ugreen 50744 and CableCreation). The chip is usually a 3mm x 3mm QFN. cx31993 datasheet
The (often cataloged under parent company Synaptics) is a highly optimized, single-chip USB Type-C digital-to-analog converter (DAC) and audio codec . It is widely used in ultra-portable dongles, headphone amplifiers, and modular hardware expansion cards. This technical deep-dive synthesizes architectural data, pinout logic, and measured performance metrics typically found across engineering datasheets for the CX31993 chipset family. 1. Core Architectural Overview Manages microphone inputs and digitizes voice signals
Official datasheets typically include pinout diagrams, register maps, and thermal characteristics. For the CX31993, the core logic is contained in a QFN-16 or WLCSP package. Pin 1 is usually the VBUS detection (5V input), while Pins 7 & 8 handle the USB D+/D- differential pair. The (often cataloged under parent company Synaptics) is
While full datasheets run dozens of pages, the headline features of the CX31993 usually include:
The is a cornerstone of the modern portable audio market. It offers a compelling package of high-resolution audio support, an extremely clean signal path, and wide device compatibility, all while requiring minimal power. While the official datasheet remains difficult to access publicly, the wealth of technical information available from component distributors, application notes, and community testing provides a complete picture of its capabilities.
@article{wang2021mlfw,
title={MLFW: A Database for Face Recognition on Masked Faces},
author={Wang, Chengrui and Fang, Han and Zhong, Yaoyao and Deng, Weihong},
journal={arXiv preprint arXiv:2109.05804},
year={2021}
}
This database is publicly available. We provide: 1) the original images(250x250), 2) the aligned images(112x112) and 3) the pair list. Baidu Netdisk(code:328y) , Google Drive
Now, we provide a list to indicate the masked faces. Google Drive