This is a 5V PCM2704 Sound Card Decoding Module DAC Decoder Board for PC, computers. This decoder board designed with an HIFI-level PCM2704 USB decoder chip. Its performance is much better than the most popular chip – the CM102S series available on the market. In this sound decoding module, USB-powered power output is directly connected to the headset. But also do pre-digital output for more advanced DAC decoder ensures SPDIF digital signal offering better sound quality. This sound decoder module is an external sound card so that the chassis can avoid serious electromagnetic interference. Thereby improves SNR and sound quality.
PCM2704 designed as a single-chip digital-analog converter chip. It consists of two DAC output channels and an integrated USB interface controller. Interface complies with USB1.1 standards. PCM2704 supports a sampling rate of 48KHz, 44KHz and 32KHz sampling rate, 16-bit stereo or mono audio data, the internal software chip volume. And also mute functions synchronized to adjust the volume and mute the computer. The PCM2704 designed as a single-chip USB stereo audio DAC integrated with a USB-compliant full-speed protocol controller and SPDIF.