This decoder card uses HIFI PCM2704 USB decoder chip, which performance is better than the most popular chip – CM102S series on the market. The USB power output can be connected directly to the headset. However, the pre-digital output for a more advanced DAC decoder provides a digital SPDIF for better sound quality. It is an external sound card so the case can avoid serious electromagnetic interference. The SNR and sound quality can be improved.
PCM2704 is a one-chip digital-to-analog converter chip. It has two DAC output channels and an integrated USB interface controller. The interface conforms to USB1.1 standards. The PCM2704 can receive 48kHz, 44kHz and 32kHz sampling rates and 16-bit stereo or mono audio data. Internal software chip volume and mute functions can be synchronized to adjust volume and mute the computer.
Specifications:
Size: 58*58*24mm (excluding connector)
Supply voltage: 5V (USB powered)
Distortion: THD+N: 0.006% (RL> 10 k?)
Distortion: THD + N: 0.025% (RL = 32 ?)
SNR: 98 dB
Dynamic range: 98 dB
Headphone output power: 12 mW (RL = 32 ?)
USB supported sampling rate: 16bit 32k – 48k
USB support system: WINXP/WIN7/WIN8, OS 9/OS X, 4.1 and systems (OTG need to be supported)
Package weight: about 30g Package List: 1 * Decoder Board
Package Dimensions : 1.97 x 1.18 x 0.39 inches; 0.78 ounces
Item model number : Sanpyl94y8wouemr
Date First Available : July 17, 2023
Manufacturer : Sanpyl
ASIN : B0CC2N44V2
Country of Origin : China
USB input, coaxial, fiber optic, analog output.
Use HIFI PCM2704 USB decoder chip.
USB power output, can be directly connected to the headset.
External sound card provides improved sound quality.
A one-chip digital-to-analog converter chip with 2 DAC output channels and an onboard USB interface controller.






