Cx31993 Datasheet Link ✮

The chip's low latency, high SNR, and microphone support make it well-suited for gaming headsets and adapters. The clean, low-distortion output also benefits competitive gamers who rely on accurate positional audio cues.

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 USB DP and DM signal lines must be routed as a differential pair with a target impedance of 90 ohms. Keep trace lengths matched.

While obtaining the full official datasheet may be challenging, the information synthesized here provides a practical and comprehensive reference for anyone looking to understand, evaluate, or design with the CX31993. Its proven architecture, ease of use, and strong performance have rightfully earned it a central position in the modern portable audio market. cx31993 datasheet

In most commercial implementations, the CX31993 is —a dedicated headphone amplifier chip from Maxim Integrated. This two-chip configuration is widely adopted because the MAX97220 provides higher output power, lower output impedance, and robust protection features that complement the CX31993's DAC functionality.

| Limitation | Description | | :--- | :--- | | | Limited manufacturer-published technical documentation is available | | No Native DSD Support | Any DSD playback relies on software conversion (DoP) | | No ADC Functionality | Cannot be used for high-quality recording applications | | No Active Noise Cancellation (ANC) | Unlike its sibling CX21988, the CX31993 does not support ANC output | | Limited Advanced Filtering | Lacks the adjustable filters and gain settings of higher-end chips | | Discontinued Support | Some sources indicate official technical documentation for this chip may have been discontinued | | High-Impedance Limitations | Not designed for extremely power-hungry planar magnetic headphones |

The CX31993 can be directly connected to an external headphone amplifier such as the or SGM8262 to increase output power. The integration typically involves: The chip's low latency, high SNR, and microphone

She pulled the datasheet open and read the dry first page like a detective scans a file: “Low-power multi-channel synchronizer and analog switch. Precision timing, internal oscillator options, TTL/CMOS interfaces.” The features read like instructions to a different life. She saw, oddly, a rhythm—a heartbeat of electronic verbs: latch, switch, debounce, synchronize. Words that made wires sing.

Since the official PDF is restricted, the hardware community has mapped the CX31993 in USB-C dongles (like the Ugreen 50744 and CableCreation). The chip is usually a 3mm x 3mm QFN.

The chip is controlled via I2C. Typical registers include: The CX31993 typically interfaces via I2S or PCM

The datasheet highlights a sophisticated internal architecture designed to minimize interference and maximize audio fidelity. Digital-to-Analog Conversion

The CX31993 is a benchmark USB audio codec for cost-sensitive, high-performance consumer audio products. While not the absolute state-of-the-art (compared to ESS or AKM flagship DACs), its integrated USB controller, low power consumption, and excellent measured performance make it the de facto choice for sub-$15 USB-C audio dongles. Designers should obtain the full datasheet through Synaptics’ official distribution channels for exact register maps, thermal characteristics, and layout guidelines.