Cx31993 Datasheet Extra Quality · Updated

The CX31993 can be used to upgrade the audio output of laptops and desktop computers, bypassing the often-noisy built-in audio codecs found on many motherboards.

The CX31993! That's a interesting part.

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.

The CX31993 is a highly integrated single-chip SoC. Its architecture integrates the USB interface, audio processing, and analog output stage. Key architectural highlights include: cx31993 datasheet

Integrated Acoustic Echo Cancellation (AEC) support and digital noise suppression filters via firmware configuration. Headphone Amplifier Output Output Power: Up to 65mW per channel into 32 Ωcap omega

Word of her progress leaked in the office like ozone. Engineers clustered by the whiteboard to read the datasheet's annotated margins—Mara’s notes in blue highlighter, margin sketches of pulse trains annotated “try with 10k pull-down.” They loved the math (the datasheet’s timing curves were elegant), but what they loved most was the story she let them borrow: how a single datasheet, read with care, could rescue a stalled project.

Independent measurements of commercial dongles using the CX31993 (e.g., Avani, Abigail, JCALLY JM6) show: The CX31993 can be used to upgrade the

This compatibility has been verified across a wide range of devices:

The datasheet figures reveal a limitation: the CX31993 is optimized for and low-impedance headphones. With a max output of 1.2Vrms, it struggles to drive high-impedance studio headphones (e.g., Sennheiser HD600 series at 300Ω). On a 300Ω load, the power output drops to roughly 0.5mW, resulting in low volume.

The CX31993 is widely adopted in several key product categories: The is a highly integrated, low-power audio codec

The following table summarizes the core specifications of the CX31993, compiled from multiple authoritative sources.

Consumes low power, making it excellent for mobile use.

at 32 ohms. It is more than capable of driving standard IEMs, earbuds, and even efficient over-ear headphones, offering superior volume and dynamics compared to built-in headphone jacks on many devices.