Employs an internal digital phase-locked loop (DPLL) that locks onto the USB frame clock. This eliminates the need for an external quartz crystal oscillator, lowering component count and reducing PCB size.
One of the chip's most remarkable features is its , which eliminates the need for an external crystal. This simplifies PCB design, reduces bill-of-materials (BOM) costs, and minimizes the risk of clock-related interference. The chip is plug-and-play , requiring no additional drivers and offering seamless compatibility across Windows, macOS, Android, and iOS.
| Parameter | Typical Value | Relevance | |-----------|---------------|------------| | | 3.3V – 5V (from VBUS) | USB bus-powered; no external battery | | DAC Resolution | 32-bit | High-resolution audio support | | Sampling Rates | 44.1, 48, 88.2, 96, 176.4, 192 kHz | Covers standard to high-res | | Output Power | Up to 1.25Vrms (2Vrms with external boost) | Drives most IEMs and some headphones | | Headphone Impedance | 16Ω – 300Ω | Versatile load handling | | SNR (DAC) | >120 dB | Very low noise floor | | THD+N | <0.001% | Clean, distortion-free output | | Current Consumption | ~20 mA (active), <1 μA (standby) | Low power for mobile use | | Interface | I2S, TDM, PDM (digital mic input) | Flexible digital audio input |
The chip provides a "clean, uncolored output" that is often described as lean and neutral-to-slightly-bright. Its exceptionally high SNR of 128dB ensures a virtually silent background, making it ideal for sensitive In-Ear Monitors (IEMs) that might otherwise pick up audible hiss from standard smartphone or laptop soundcards. Design and Functional Integration cx31993 datasheet
The CX31993 can be directly connected to an external headphone amplifier such as the or SGM8262 to increase output power. The integration typically involves:
For detailed technical specifications, including the pin diagram, electrical characteristics, and application circuit examples, you would need to consult the official datasheet provided by the manufacturer or authorized distributors. This overview provides a general insight into what a datasheet for such a component might contain.
, it efficiently drives most in-ear monitors (IEMs) and efficient on-ear headphones. It may struggle to drive high-impedance (e.g., >300 Ωcap omega Employs an internal digital phase-locked loop (DPLL) that
This document serves as an exhaustive technical overview synthesized from the functional parameters, measurement reports, and application notes found in the CX31993 Datasheet System . 🛠️ Core Architecture & Specifications
CX31993 Datasheet: A Deep Dive into the Conexant High-Performance USB-C DAC
The CX31993 is built on a single-chip architecture and boasts an extremely simple peripheral circuit design. It can implement high-quality audio output with just a minimal number of passive components. In many commercial products, the CX31993 is paired with an external operational amplifier (op-amp), such as the MAX97220. This "dual-chip" configuration combines the DAC capabilities of the CX31993 with the high-power drive capability of the MAX97220, achieving a significant leap in sound quality and power output. Its exceptionally high SNR of 128dB ensures a
CX31993 Datasheet: Comprehensive Review, Pinout, and Audio Performance Analysis
: Optimized for mobile devices, the chip features an ultra-low idle consumption of approximately 0.4mA , preventing rapid battery depletion on the host mobile platform. 2. Technical Specifications & Performance Ratings
Due to its efficient design, the chip does not consume significant battery power from the host device.