Driven by the internal Class-G headphone amplifier.
) or low-sensitivity studio headphones to their full potential, but it excels at everyday portable listening.
Official datasheets typically include pinout diagrams, register maps, and thermal characteristics. For the CX31993, the core logic is contained in a QFN-16 or WLCSP package. Pin 1 is usually the VBUS detection (5V input), while Pins 7 & 8 handle the USB D+/D- differential pair.
If you are designing a mobile audio accessory or simply trying to understand the specs of your favorite portable DAC, this guide breaks down the essential technical details found in the CX31993 datasheet. 1. Overview of the CX31993 cx31993 datasheet
65mW. This offers adequate power to drive a wide range of In-Ear Monitors (IEMs) and easy-to-drive headphones.
The glowing blue light of the was the last thing Elara saw before the noise floor finally swallowed her world.
and Facebook groups spent years hunting for the spec sheet to verify its claims or filter out specific electrical noise. The "Leak": Driven by the internal Class-G headphone amplifier
Designing hardware with the CX31993 requires careful attention to trace routing, grounding strategies, and decoupling networks to maintain the chip's native 124 dB SNR.
Supports external MCU control for custom features or LED indicators. 3. Pin Configuration and Package
The CX31993 is recognized for delivering audiophile-grade performance within a standard bus-powered USB envelope. DAC Performance (Playback) 16-bit, 24-bit, 32-bit PCM Sampling Rates: 44.1 kHz, 48 kHz, 96 kHz, 192 kHz, 384 kHz Signal-to-Noise Ratio (SNR): Up to 124 dB (A-weighted) Dynamic Range (DNR): 120 dB For the CX31993, the core logic is contained
The datasheet figures reveal a limitation: the CX31993 is optimized for and low-impedance headphones. With a max output of 1.2Vrms, it struggles to drive high-impedance studio headphones (e.g., Sennheiser HD600 series at 300Ω). On a 300Ω load, the power output drops to roughly 0.5mW, resulting in low volume.
is a highly efficient, single-chip USB Type-C digital-to-analog converter (DAC) and headphone amplifier . This system-on-chip (SoC) has become a primary choice for audiophile dongles, ultra-portable amplifiers, and custom hardware integration. The device natively delivers combined with exceptionally low power draw.
Elias picked it up with gloved hands. It was pristine. The silkscreening on the board was sharp, white text on a dark sea of fiberglass.
USB PHY → USB Audio Controller → DSP (optional equalizer, bass boost) → DAC → HP Amp → 3.5mm jack.
When designing with the CX31993 IC, several factors should be considered, including: