Cx31993 Datasheet !link! Jun 2026
(Chinese Hi-Fi) community. Reviewers began noticing that dirt-cheap USB-C dongles (often called "CX-Pro") were outperforming big-name brands and even the gold-standard Apple dongle in certain areas like power and clarity on Android devices. It offered a massive 130dB signal-to-noise ratio and support for 32-bit/384kHz audio, which was unheard of for its sub-$15 price point. audioreviews.org 2. The Datasheet Hunt
Greater than 128dB , ensuring a very clean signal with minimal background hiss. Dynamic Range (DNR): Greater than 120dB .
For engineers and audio enthusiasts searching for the "CX31993 datasheet," the goal is usually the same: to verify power output (mW), Total Harmonic Distortion (THD+N), and compatibility with high-impedance headphones. While the full manufacturer datasheet is often restricted under NDA (Non-Disclosure Agreement) with Synaptics (which acquired Conexant), this article aggregates the publicly available technical specifications, electrical characteristics, and circuit design implications of the CX31993. cx31993 datasheet
CX31993 Datasheet: Comprehensive Review, Pinout, and Audio Performance Analysis
Digital-to-Analog Converter (DAC) chip—gained "dark horse" status because it was powerful, cheap, and surprisingly difficult to find technical documentation for. 1. The "Hidden Gem" Discovery The CX31993 chip first rose to fame through the (Chinese Hi-Fi) community
Unleashing Hi-Res Audio: A Deep Dive into the CX31993 DAC If you’ve been browsing for a budget-friendly way to upgrade your mobile audio, you’ve likely crossed paths with the . Often found in ultra-portable USB-C dongles, this tiny silicon powerhouse has become a cult favorite for audiophiles who want high-end specs without the "high-end" price tag.
A: The difference is substantial. While a typical smartphone's internal DAC may achieve only 60-70dB SNR with noticeable distortion, the CX31993 offers >128dB SNR and <0.0003% THD+N. This translates to a much cleaner, more detailed sound with a lower noise floor and significantly better resolution. audioreviews
Through the community’s collective effort, the "legendary" specs of the CX31993 were finally mapped out: Audio Expansion Card - CX31993 Datasheet
The CX31993 functions as a single-chip solution that bridges digital USB audio streaming with analog headphones or headsets. It integrates a high-speed USB 2.0 controller, a high-performance audio DAC, an Analog-to-Digital Converter (ADC) for microphone input, and an onboard headphone amplifier. Key Targeted Applications USB Type-C to 3.5mm audio adapter cables (dongles)
The (often branded as Conexant) is a high-performance Digital-to-Analog Converter (DAC) and amplifier chip frequently used in USB-C to 3.5mm audio dongles and portable adapters. It is popular in the "Chi-Fi" (Chinese Hi-Fi) community for offering premium audio specifications at a budget-friendly price. Key Technical Specifications Based on manufacturer data and product listings, the Go to product viewer dialog for this item. typically features the following parameters: DAC Sampling Rate : Supports up to 32-bit / 384kHz .
The full public datasheet for CX31993 is proprietary and not freely available. This guide is based on publicly disclosed specifications, application notes, and reverse-engineering from known products (e.g., Conexant/CX-Audio dongles). For register-level details, you must sign an NDA with the manufacturer.