Cx31993 Datasheet
The integrated ADC can monitor voltage thresholds on the microphone line to decode button presses from standard inline remotes (TRRS CTIA standard): Volume Up / Volume Down Play / Pause / Call Answer
The CX31993 is a mixed-signal IC that combines analog and digital circuits on a single chip. It is designed to provide a high level of integration, making it suitable for a wide range of applications, including audio processing, telecommunications, and industrial control systems. The IC is manufactured using a CMOS process, which enables low power consumption and high reliability.
If you are transitioning away from a device with a 3.5mm jack or simply want to squeeze better sound out of your IEMs, a cx31993 datasheet
The CX31993 IC is suitable for a wide range of applications, including:
The chip is typically housed in a compact, low-profile QFN (Quad Flat No-Lead) package optimized for space-constrained cable assemblies. Functional Blocks The integrated ADC can monitor voltage thresholds on
Isolate the digital and analog power planes using a ferrite bead to suppress high-frequency switching noise. Differential USB Layout
A minimal working circuit includes:
Conexant CX31993 (often branded as CX-Pro) is a highly efficient, high-performance USB-C Digital-to-Analog Converter (DAC) and integrated amplifier chip. It has gained widespread popularity in the "dongle DAC" market due to its ability to deliver high-resolution audio—up to 32-bit/384kHz —in a compact, low-power form factor. Technical Specifications and Performance
CX31993 Datasheet: High-Resolution USB-C Audio Codec Specifications If you are transitioning away from a device with a 3