Cx31993 Datasheet [PC FRESH]
CX31993 Datasheet: A Deep Dive into the Conexant High-Performance USB-C DAC
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.
In the market for budget and mid-range USB-C audio chips, the CX31993's main competitor is the . The choice between the two often comes down to specific project priorities.
The CX31993 datasheet is available from various sources, including: cx31993 datasheet
The is a highly integrated, low-power audio codec from Conexant (now part of Synaptics). It is designed primarily for USB Type-C wired headsets and dongles, enabling high-resolution audio playback and voice capture through a single connector. It is widely recognized in the consumer electronics market for offering superior audio quality compared to basic passive USB-C analog dongles.
Full native support (Direct USB Audio access supported via applications like USB Audio Player Pro for bit-perfect playback).
is often favored over generic USB-C adapters for several reasons: CX31993 Datasheet: A Deep Dive into the Conexant
While the official datasheet remains an exclusive document, the public performance metrics paint a clear picture. The is a high-fidelity, low-power workhorse. It is not built for massive power (it won't drive planar magnetic headphones), but for the 99% of users with standard earbuds and IEMs, its 124dB SNR and DSD128 support offer audiophile-grade sound for less than $10 per dongle.
Although the official pinout diagram is confidential, the functional interfaces of the CX31993 are well-documented. The chip communicates with the host device via a , which carries both power and data. Internally, it uses I2S (Inter-IC Sound) to transmit digital audio data to the DAC and S/PDIF for potential digital output.
The CX31993 is recognized for delivering audiophile-grade performance within a standard bus-powered USB envelope. DAC Performance (Playback) 16-bit, 24-bit, 32-bit PCM Sampling Rates: 44.1 kHz, 48 kHz, 96 kHz, 192 kHz, 384 kHz Signal-to-Noise Ratio (SNR): Up to 124 dB (A-weighted) Dynamic Range (DNR): 120 dB The choice between the two often comes down
Employs an internal digital phase-locked loop (DPLL) that locks onto the USB frame clock. This eliminates the need for an external quartz crystal oscillator, lowering component count and reducing PCB size.
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)