Place decoupling caps as close to the VDD pins as possible to reduce high-frequency noise from the USB bus.
The table below summarizes the key technical parameters of the CX31993 as derived from authoritative sources.
The chip is typically housed in a compact, low-profile QFN (Quad Flat No-Lead) package optimized for space-constrained cable assemblies. Functional Blocks
Android (95%+ of Type-C devices), Windows 10, Apple system (macOS/iOS) Supports phone calls and inline cable controls Audio Characteristic cx31993 datasheet
Are you planning to integrate the CX31993 into a DIY project, or
Developed with a focus on high-fidelity playback, this chip is often found in premium smartphones and development boards where audio quality is a priority over cutting corners on the Bill of Materials (BOM).
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 Place decoupling caps as close to the VDD
The CX31993, a high-performance USB-C audio decoding chip from Conexant (now part of Synaptics), has become a cornerstone in portable Hi-Fi audio. It is widely used in products like USB-C to 3.5mm audio adapters ("dongles"), portable DAC/amps, and gaming audio solutions. While an official, public datasheet from Conexant is not readily available and is often restricted to NDA, a comprehensive set of technical specifications can be compiled from trusted technical reviews, analysis reports, and product documentation. This article aggregates all critical specifications of the CX31993 to serve as a practical datasheet for engineers, product managers, and audio enthusiasts.
: It supports high-resolution PCM files, allowing you to listen to "Master" quality tracks on streaming services like Tidal or Apple Music without downsampling. Low Power Consumption : Unlike some desktop-grade portable DACs, the CX31993 Go to product viewer dialog for this item.
If you are a hardware engineer or a DIY enthusiast looking for the specifications, this article breaks down the technical architecture, electrical characteristics, and performance metrics of this popular chip. 1. Product Overview Functional Blocks Android (95%+ of Type-C devices), Windows
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.
The datasheet—once a monochrome PDF among many—had become a story: of rescue, of careful reading, of patience and testing. It taught them to look for music where others saw only tables, and to believe that small, well-documented parts, treated with respect, could orchestrate something far larger than their datasheet boxes.
One of the CX31993's most significant practical advantages is its compliance, which ensures plug-and-play operation across all major operating systems. Users can simply connect the device to a smartphone, tablet, or computer, and it will be immediately recognized without any driver installation.
Native USB Type-C (compatible with Windows, Android, and iOS/iPadOS). Why It’s Popular Among Audiophiles The CX31993 Go to product viewer dialog for this item.
The CX31993 typically comes in a small package, making it ideal for the slim profiles of USB-C dongles.