Cx31993 Datasheet |top| Jun 2026

Disclaimer: This article is a synthesized technical resource compiled from public product specifications, technical analyses, and independent measurements. The CX31993 is a product of Conexant (now part of Synaptics). For official technical documentation or volume purchasing inquiries, please contact Synaptics or their authorized distributors directly. The specifications and information presented herein are believed to be accurate but should be independently verified for critical applications.

: It is noted for running cool and having minimal impact on a smartphone's battery life, often consuming only about 2% extra battery per hour of use.

The USB DP and DM signal lines must be routed as a differential pair with a target impedance of 90 ohms. Keep trace lengths matched. cx31993 datasheet

The CX31993 is more than just a decoder; it is a complete audio solution. Conexant (CX-Pro) CX31993 USB-C Amp/DAC Review

The (often associated with the Conexant CX-Pro series) has emerged as a dominant force in the budget-friendly, high-fidelity portable audio market . As mobile manufacturers continue to remove 3.5mm headphone jacks, demand for high-quality USB-C DAC (Digital-to-Analog Converter) and Amp dongles has surged. Disclaimer: This article is a synthesized technical resource

The CX31993 is a highly integrated, low-power designed specifically for USB Type-C connectors. Unlike passive adapters that merely reroute analog signals (which require a phone with a DAC built-in), the CX31993 is an active component. It negotiates the USB-C protocol, pulls digital audio data, converts it to analog, and amplifies it.

Are you planning to integrate the CX31993 into a DIY project, or Keep trace lengths matched

) or low-sensitivity studio headphones to their full potential, but it excels at everyday portable listening.

In the wake of the smartphone headphone jack removal and the shift toward ultra-thin laptops, the humble USB-C to 3.5mm adapter has become an essential daily driver for millions of users. At the heart of many of the best-performing, budget-friendly dongles lies a specific integrated circuit: the .

The Conexant is a high-performance, low-power USB Type-C audio codec designed for mobile and portable audio applications . It has become a staple in the "audiophile dongle" market due to its ability to deliver high-resolution audio decoding in an incredibly compact form factor. Technical Specifications Overview

According to and, the CX31993 boasts impressive technical specifications for its size and price point. 1. Audio Performance