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Cx31993 Datasheet ((top))
The datasheet highlights a sophisticated internal architecture designed to minimize interference and maximize audio fidelity. Digital-to-Analog Conversion
Are you working on a project involving the CX31993? Drop your questions or schematic troubleshooting tips in the comments below!
Regulated voltage output to power electret condenser microphones.
The glowing blue light of the was the last thing Elara saw before the noise floor finally swallowed her world. 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.
The CX31993's straightforward architecture allows for a simple and minimal external component count, enabling compact, high-performance designs. In its most common configuration—a USB-C to 3.5mm audio adapter—the chip operates as a standalone solution, requiring only a few passive components and an audio jack connector to function. Many products take this further by pairing the CX31993 with a dedicated headphone amplifier chip, most notably the , to boost output power for more demanding headphones. This DAC+AMP combo is widely regarded as a cost-effective and powerful "reference design" for many budget-friendly "dongles" and "small tail" DACs.
Datasheet references highlight an integrated power-on-reset (POR) sequence that mutes the amplifier until the DAC is fully locked. This prevents the loud "POP" noise typically heard when plugging a cheap dongle into a PC. several factors should be considered
The Conexant CX31993 is a powerhouse audio chip that has democratized high-resolution portable audio. Its compelling combination of makes it the de facto standard for budget-friendly Hi-Fi DACs.
: Approximately 0.0003% (measured at -95dB).
The chip is an "all-in-one" solution commonly found in budget audiophile "dongles" (USB-C to 3.5mm adapters) such as the or Abigail . low-power consumption audio playback.
When designing with the CX31993 IC, several factors should be considered, including:
: Plug-and-play support for iPhone 15/16 series, Galaxy S-series, and Google Pixel.
is a highly integrated USB-C audio solution designed for high-resolution, low-power consumption audio playback. Go to product viewer dialog for this item. (Conexant) DAC Sampling Rate: Up to 32-bit / 384kHz DSD Support: Native DSD64 / DSD128 Signal-to-Noise Ratio (SNR): Dynamic Range (DNR): Total Harmonic Distortion + Noise (THD+N): Power Output (Typical): Approx. (at 32-ohm load) Interface: Type-C to 3.5mm/4.4mm/2.5mm 2. Detailed Technical Analysis High-Resolution Audio Capability The standout feature of the
USB PHY → USB Audio Controller → DSP (optional equalizer, bass boost) → DAC → HP Amp → 3.5mm jack.

