Cx31993 Datasheet -
| Parameter | Condition | Min | Typ | Max | Unit | | :--- | :--- | :--- | :--- | :--- | :--- | | | USB-C Spec | 4.4 | 5.0 | 5.5 | V | | Quiescent Current | No audio | - | 15 | 25 | mA | | Dynamic Current | 1Vrms output | - | 35 | 45 | mA | | Output Load Impedance | Stereo out | 16 | 32 | 600 | Ω | | Output Voltage (RMS) | 1% THD limit | - | 1.0 | 1.2 | Vrms | | Crosstalk | 1kHz signal | - | -85 | - | dB | | Frequency Response | 20Hz - 20kHz | +/-0.1 | Flat | +/-0.5 | dB |
| Feature | CX31993 | Realtek ALC5686 | Realtek ALC4042 | | :--- | :--- | :--- | :--- | | | 384 kHz | 384 kHz | 96 kHz | | SNR | 124 dB | 120 dB | 104 dB | | THD+N | -93 dB | -95 dB | -85 dB | | Output Power (32Ω) | 30 mW | 33 mW | 40 mW | | DSD Support | DSD128 | DSD128 | No | | Typical Use | Mid-range dongles | High-end dongles | Budget dongles |
While the absence of an official public datasheet presents challenges for engineers seeking absolute certainty in their designs, the chip's widespread adoption and consistent positive performance across dozens of products serve as powerful validation of its capabilities. When paired with a quality amplifier and implemented with careful PCB layout, the CX31993 remains one of the most compelling choices in the budget portable DAC market. cx31993 datasheet
This article provides a comprehensive overview of the , performance characteristics, and practical applications based on its implementation in portable audio gear. 1. CX31993 Core Specifications & Technical Highlights Go to product viewer dialog for this item.
This is the section most visitors looking for the "CX31993 datasheet" care about. Here is the verified performance data based on OEM testing and reverse-engineered specifications. | Parameter | Condition | Min | Typ
Avoid routing audio output traces parallel to the USB digital lines to eliminate crosstalk. Audio Output Network
"Thirty-two bits," she whispered, her voice cracking in the dry air of the archive. "Three hundred and eighty-four kilohertz." The numbers felt like a prayer. Here is the verified performance data based on
The CX31993 integrates a digital-to-analog converter (DAC), an analog-to-digital converter (ADC), a high-efficiency headphone amplifier, and a USB 2.0 full-speed/high-speed controller onto a single silicon die. This high level of integration eliminates the need for an external microcontroller or a separate audio bridge chip, minimizing the overall printed circuit board (PCB) footprint and reducing bill-of-materials (BOM) costs. 2. Key Architecture and Pin Configuration
Conexant CX31993 Datasheet: High-Resolution USB-C Audio SoC Reference Guide
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.
A: No. The chip is powered entirely through the USB-C connection and does not require any external power source. This is a key advantage for portable applications.