Cx31993 Datasheet Access

: USB Type-C to 3.5mm (or 2.5mm/4.4mm balanced versions in some implementations).

| Parameter | Specification | | :--- | :--- | | | 32-bit | | Max Sampling Rate | 384 kHz | | Signal-to-Noise Ratio (SNR) | >128 dB | | Total Harmonic Distortion + Noise (THD+N) | <0.0003% | | Dynamic Range (DNR) | >120 dB | | Output Power | 65 mW @ 16Ω / 31 mW @ 32Ω | | Headphone Impedance Support | 16Ω – 600Ω | | Interface | USB-C | | Operating Systems | Windows, macOS, Android, iOS | | Package Type | QFN | | External Crystal Required? | No (built-in oscillator) |

Avoid routing audio output traces parallel to the USB digital lines to eliminate crosstalk. Audio Output Network

While not extensively documented, the CX31993's USB audio architecture provides , making it suitable for real-time applications such as: cx31993 datasheet

Some higher-end designs pair the CX31993 with even more capable amplifiers, such as the , to achieve output power up to 228mW at 16Ω. This flexibility allows manufacturers to scale performance according to their target market.

>128dB. This extremely high SNR indicates a very low noise floor, allowing for silent backgrounds in music. Dynamic Range (DNR): >120dB.

The CX31993 supports , which covers virtually all consumer high-resolution audio formats currently available. However, it is important to note that many product descriptions list additional format support (such as DSD) that may be implemented through software conversion (DoP) rather than native hardware decoding. The native hardware capabilities of the CX31993 are focused on PCM, which remains the most widely used format in the consumer audio space. : USB Type-C to 3

-95 dB (0.0018% into 32 Ωcap omega Output Power: ~31 mW per channel into 32 Ωcap omega ADC Performance (Recording/Microphone) Resolution: 16-bit, 24-bit PCM Sampling Rates: 44.1 kHz to 96 kHz THD+N (Mic Input): -90 dB Microphone Bias Voltage: Programmable from 1.8V to 2.8V Power Consumption

The CX31993's eliminates the need for an external crystal or clock source, significantly simplifying PCB layout and reducing BOM cost. The chip requires only a minimal number of passive components (capacitors, resistors) around it to function, enabling compact, single-sided PCB designs.

The is a powerhouse in the miniature DAC market. Its datasheet reveals a chip that prioritizes high-resolution transparency and power efficiency, making it an excellent choice for anyone looking to bypass the mediocre internal audio circuitry of modern mobile devices. Audio Output Network While not extensively documented, the

The (often cataloged under parent company Synaptics) is a highly optimized, single-chip USB Type-C digital-to-analog converter (DAC) and audio codec . It is widely used in ultra-portable dongles, headphone amplifiers, and modular hardware expansion cards. This technical deep-dive synthesizes architectural data, pinout logic, and measured performance metrics typically found across engineering datasheets for the CX31993 chipset family. 1. Core Architectural Overview

is generally characterized by a . It does not tend to add significant coloration, making it a good choice for those who want to hear the original sound of their recordings. The mid-range is clean, and the upper-mids are faithful, offering a slightly airy presentation. 3. Implementation and Practical Use

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.

In the world of budget DAC chips, the CX31993 is often compared to the . While both offer 32-bit/384kHz support, the CX31993 is often praised for having a "cleaner" and "more analytical" sound signature, whereas the ALC5686 is sometimes described as slightly warmer. Conclusion

Conexant CX31993 Datasheet: High-Resolution USB-C Audio SoC Reference Guide