PCM2704 USB DAC Audio Decoder Board with Optical & Coaxial Output
Review: 5 - "A masterpiece of literature" by John Doe, written onMay 4, 20020
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PCM2704 USB DAC Audio Decoder Board with Optical & Coaxial Output

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  • Product SKU: KG1362
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₹ 399 ₹ 499
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Specification

Description

PCM2704 USB Audio Decoder Board – HiFi USB DAC with Optical and Coaxial Output

This PCM2704 USB audio decoder board uses a HiFi-grade PCM2704 USB decoder chip, offering better performance than commonly used CM102S series chips. Designed as an external USB sound card, it helps reduce electromagnetic interference from the computer chassis, resulting in improved signal-to-noise ratio and overall sound quality.

The board is USB powered and can directly drive headphones, while also providing SPDIF digital output for connecting to advanced external DAC decoders. With an integrated USB interface controller and dual DAC output channels, it supports multiple sampling rates and delivers clean, detailed audio for HiFi listening and DIY audio applications.

Features

  • HiFi-grade PCM2704 USB audio decoder chip
  • USB input with coaxial, optical, and analog audio output
  • USB powered operation with direct headphone drive support
  • External sound card design reduces electromagnetic interference
  • Integrated USB interface controller
  • Dual DAC output channels for stereo audio
  • Supports system volume control and mute synchronization
  • Compact design suitable for DIY and audio projects

Technical Specifications

  • Decoder Chip: PCM2704
  • Supply Voltage: 5 V DC (USB powered)
  • USB Audio Standard: USB 1.1
  • Supported Sample Rates: 32 kHz, 44.1 kHz, 48 kHz
  • Audio Resolution: 16-bit stereo or mono
  • Total Harmonic Distortion + Noise: 0.006 percent (RL greater than 10 kΩ)
  • Total Harmonic Distortion + Noise: 0.025 percent (RL = 32 Ω)
  • Signal to Noise Ratio: 98 dB
  • Dynamic Range: 98 dB
  • Earphone Output Power: 12 mW (RL = 32 Ω)

Compatibility

  • Windows XP
  • Windows 8
  • Mac OS 9 and Mac OS X
  • Android 4.1 and above (OTG supported devices)

Physical Attributes

  • Board Size: 65 × 50 × 24 mm (including terminals)
  • Weight: Approximately 21g

Applications

  • USB external sound card applications
  • HiFi audio decoding and playback systems
  • DIY DAC and audio projects
  • Digital to analog audio conversion
  • Headphone amplifier and audio testing setups

Important Note

  • PCB color may vary depending on manufacturing batch and stock availability
  • This does not affect product performance or specifications

Package Includes

  • 1 x PCM2704 USB Audio Decoder Board

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