This is the most common application for the CX31993. As smartphones increasingly omit the traditional headphone jack, these adapters provide a compact, affordable solution for connecting wired headphones to USB-C devices. The chip's ultra-low power consumption ensures minimal battery drain, while its high-quality DAC provides a significant improvement over many built-in smartphone audio solutions.
Note: The full datasheet for CX31993 is proprietary to Synaptics. This write-up is compiled from public test data, product teardowns, and community documentation. For production designs, please contact Synaptics or an authorized distributor for NDA terms and complete technical documentation.
The CX31993 is a highly integrated audio processing IC that offers a range of features and benefits. Some of its key features include: cx31993 datasheet
While the chip is standard, its final performance can be influenced by the circuit board implementation, with some manufacturers utilizing it in solid metal chassis for better heat dissipation and electrical shielding. 4. CX31993 vs. Competition Go to product viewer dialog for this item.
For its price, it provides a surprisingly wide soundstage. Users often note that instrument separation is much better than standard built-in phone jacks [2, 23]. This is the most common application for the CX31993
While numbers tell part of the story, the actual "ear feel" is what matters. Community reviews from platforms like AudioReviews.org and various enthusiast forums describe the CX31993 sound as:
Because of its high integration, the CX31993 requires very few external components, making it ideal for: Note: The full datasheet for CX31993 is proprietary
These specifications place the CX31993 firmly in the high-resolution audio category, capable of decoding audio far beyond CD quality (16-bit/44.1kHz). In practical terms, the chip's >128dB SNR means the noise floor is virtually inaudible, while the THD+N of <0.0003% indicates exceptionally clean, low-distortion output.
