Product description:
HIFI-level PCM2704 USB decoder chip, its performance is better than the most commonly used low-end chip CM102S series on the market, the power supply uses USB power supply, the output can be directly connected to headphones, can also be used as a pre-stage. Digital output can be a more advanced DAC decoder Provide SPDIF digital signal to get better sound quality. Because it is an external sound card, it can avoid serious electromagnetic interference in the chassis, and the signal-to-noise ratio and sound quality are improved.
PCM2704 is a single-chip digital-to-analog conversion chip. It has two digital-to-analog conversion output channels and an integrated USB interface controller. The interface complies with the USB1.1 standard. The PCM2704 can receive 16-bit stereo or mono audio data at 48KHz, 44KHz, and 32KHz sampling rates. The chip integrates software volume and mute functions to adjust the computer's volume and mute simultaneously.
Technical Parameters:
Supply voltage: 5 V (USB powered)
Distortion: THD + N: 0.006% (RL> 10 kΩ)
Distortion: THD + N: 0.025% (RL = 32 Ω)
Signal to noise ratio: 98 dB
Dynamic range: 98 dB
Headphone output power: 12 mW (RL = 32 Ω)
USB support sampling rate: 16Bit 32k-48k
USB support system: WINXP / WIN7 / WIN8, MAC OS 9 / OS X, Android 4.1 or above (need to support OTG models)
Size: 58 x 58 x 24mm (without terminals).
Package includes:
1 x DAC Decoder
