Cx31993 Datasheet Portable Jun 2026
Supports up to 32-bit/384kHz sampling rates.
The CX31993 is designed for high-fidelity audio playback. Its decoding capability ensures it can handle high-resolution audio files without downsampling, preserving all the original detail. The key to its "Hi-Fi" designation lies in its >128dB SNR , which means the audio signal is significantly louder than the background noise, resulting in an exceptionally clean and "black" background. This is further supported by a THD+N of less than 0.0003% , indicating extremely low distortion. While some community members note that the 1Vrms output may have higher distortion compared to certain alternatives, its overall noise floor remains very low.
As the first track began to play, the "lean, neutral-to-slightly-bright" tonality the datasheet promised flooded her senses. The low-impedance IEMs in her ears didn't just play music; they reconstructed a lost reality. She could hear the distinct "air" between instruments, a transparency that the bulky, more expensive amplifiers of her era could never mimic. cx31993 datasheet
Sourcing the CX31993 is primarily done through authorized distributors such as LCSC, or via wholesale platforms like Taobao for small-to-medium volumes. Since the manufacturer does not publish a public price list (MoQ required), end-users most often encounter the chip through the wide array of finished consumer products that feature it. For a complete USB-C DAC dongle, the final product can cost as little as on Aliexpress. A popular pairing is the CX31993 with a MAX97220 amplifier , available as a finished DAC adapter on e-commerce sites like Amazon for approximately $14.94 (KRW) to $48.50. A standalone DAC using the CX31993 is available from online retailers for around ₩11,140 (approx. $8.50 USD) .
Supports external MCU control for custom features or LED indicators. 3. Pin Configuration and Package Supports up to 32-bit/384kHz sampling rates
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
provides an exceptionally quiet noise floor. In practical terms, this means that even when paired with sensitive In-Ear Monitors (IEMs), users typically hear no background hiss or static. This noise-free performance is often praised in reviews for budget devices, making it a "blackground" (dead silent) experience. While designed for portability, the Go to product viewer dialog for this item. offers surprising driving power, often quoted around The key to its "Hi-Fi" designation lies in
At the heart of the CX31993 is a high-performance 32-bit hardware decoding engine. It integrates an on-chip USB 2.0 controller, a high-resolution delta-sigma DAC, an integrated analog-to-digital converter (ADC) for microphone inputs, and a power-efficient headphone amplifier stage. Key Performance Parameters Audio Expansion Card - CX31993 Datasheet
If you are looking up the datasheet because you are dealing with a Linux kernel or Android driver issue, you know that support is crucial. The CX31993 typically interfaces via I2S or PCM for audio data and I2C for control signals.
The testing station became a ritual. Every chip was run through the datasheet’s gauntlet: stress tests across temperature ranges, jitter measurements against the specified maximum, behavioral checks for spurious oscillation. Some chips failed, skewing like small, rusty rowboats. Some performed better than spec—lucky survivors after a decade in crates. For the glider, only a handful were needed; for funding and pride, they needed many more.
