Place decoupling caps as close to the VDD pins as possible to reduce high-frequency noise from the USB bus.
Native UAC2 driver support with control panel access up to 32-bit/384kHz sampling. macOS / iOS / iPadOS: CoreAudio compliant. Linux: ALSA architecture recognizes the chip natively. Inline Remote and Controls
The 65mW output power is robust enough for most portable audio needs.
The CX31993 is a highly integrated, low-power USB Type-C digital-to-analog converter (DAC) designed for high-resolution audio applications. It bridges the gap between digital USB-C outputs and analog headphones, providing a significant upgrade over the standard audio processing found in most smartphones and laptops. Key Specifications at a Glance: Up to 384kHz Bit Depth: 32-bit cx31993 datasheet
The glider problem had been power and timing. The actuators needed crisp, predictable pulses to change buoyancy; the comms module slept too deeply and woke late, missing windows for synchronized data bursts. The CX31993, with its multi-channel synchronizer and programmable timing, fit like a key she'd carved from observation. Where the partner board had relied on a labyrinth of discrete logic, this single chip offered something else: orchestration.
One of the most critical parts of the CX31993 datasheet is its power management. It features an intelligent "Deep Sleep" mode when no audio is playing, preventing it from draining a smartphone's battery during standby. Versatility
While it runs cool, ensure the QFN thermal pad is properly soldered to a copper pour on the PCB. Conclusion Place decoupling caps as close to the VDD
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.
The DAC is designed to be recognized immediately by Windows 10/11, Android (via Type-C), and macOS, usually without requiring proprietary drivers.
The CX31993 is a USB audio codec specifically engineered for USB-C to 3.5mm audio adapters, portable DAC/amps (often called "dongles" or "小尾巴"), and other mobile Hi-Fi applications. Unlike many competing solutions, the CX31993 is designed with a singular focus: delivering high-quality analog audio output with extremely low power consumption, making it ideal for smartphone-powered audio upgrades. Linux: ALSA architecture recognizes the chip natively
The is arguably the best "bang-for-your-buck" DAC chip in the current market. It provides a bridge between low-end generic adapters and high-end desktop gear. For developers, its high integration reduces BOM (Bill of Materials) costs while delivering "Hi-Res" certified performance.
Datasheet references highlight an integrated power-on-reset (POR) sequence that mutes the amplifier until the DAC is fully locked. This prevents the loud "POP" noise typically heard when plugging a cheap dongle into a PC.
CX31993 USB Type C DAC Headphone Amp DAC Audio Decoding Cable Walmart - JMQT& more Go to product viewer dialog for this item. I can look for detailed comparisons between the Go to product viewer dialog for this item. and the ALC5686 DAC chips. Let me know which you'd prefer to explore next! Conexant (CX-Pro) CX31993 USB-C Amp/DAC Review
: With a high SNR of 128dB, it provides a "black" background, which is essential for sensitive In-Ear Monitors (IEMs) that often pick up electrical noise from poorly shielded devices. Common Implementation: The "CX-Pro" Dongle While the is a chip, you will most commonly find it inside the CX-Pro DAC Dongle Go to product viewer dialog for this item. . These devices often feature: