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A316-HF-DAC-V1 USB HiFi Audio Decoder Evaluation Board User Manual

A316-HF-DAC-V1 USB Desktop High-Definition Audio Decoder Evaluation Board

I. Evaluation Board Hardware Specifications

  • A316-HF-DAC-V1 is an evaluation board specifically designed for USB desktop high-definition audio decoders, utilizing Phaten A316_1926V1 XU316 module design. The evaluation board supports USB, optical, coaxial, and I2S audio signal source inputs. Different audio input sources can be selected via buttons.
  • The evaluation board uses an AKM4493SEQ DAC to output analog audio.
  • Supported Audio Interfaces
    • USB 2.0 (Full-speed and High-speed)
    • I2S/TDM
    • S/PDIF (Optical/Coaxial)
    • Direct Stream Digital (DSD)
  • Supported Audio Sampling Rates
    • PCM: 44.1kHz, 48kHz, 88.2kHz, 96kHz, 176.4kHz, 192kHz, 352.8kHz, 384kHz, 705.6kHz, 768KHz
    • DSD: DSD 64, DSD 128, DSD 256, DSD 512
    • DOP: DOP 64, DOP 128, DOP256
  • System Compatibility
    • UAC 2.0 protocol, supports ASIO, compatible with various operating systems including Windows, Linux, Android, MAC OS, and IOS
Interface Function
Type-C Connection to PC/mobile USB, USB audio input and 5V power supply
S/PDIF Optical/coaxial digital audio input
I2S I2S input
Output RCA left and right channel analog audio output

USB Audio Input with DAC AKM4493

Parameter Value
THD+N RATIO 108.232dB
SIGNAL-NOISE RATIO 120.012dB
RCAOUT Crosstalk(10K) 111.851dB

S/PDIF Audio Input with DAC AKM4493

Parameter Value
THD+N RATIO 108.380dB
SIGNAL-NOISE RATIO 118.483dB
RCAOUT Crosstalk(10K) 115.302dB
Function Minimum Maximum Unit
Operating Temperature 0 70 °C
Operating Voltage 4.5 5 V
Operating Status Average Peak Unit
@5V 250 300 mA

II. Evaluation Board Usage Instructions

Installing Windows Driver

Note

  • When users receive the evaluation board, if it is their first time using it and they are using a Windows system, they need to install the Windows driver before conducting evaluation tests.
  • Windows 10 build 1809 and later versions already have a native USB UAC 2.0 driver. However, the native driver can only play audio with a maximum sampling rate of 384kHz. To evaluate 768kHz sampling rate and DSD formats, a third-party driver needs to be installed.
  • Linux, Mac, and mobile devices do not require driver installation.

  1. Download the evaluation board driver. After extraction, run XMOS_TUSBAudio_eval_v5.58.0_2023-06-29_setup.exe directly, then follow the default installation process.

  2. Connect the evaluation board to a Windows computer via USB cable. Click the TUSB icon in the bottom right corner; if the USB Audio Device is displayed as shown in the right image, it indicates that the driver is running normally.

  3. The evaluation board will be enumerated as USB 2.0 Audio Devices (UAC2.0) in Device Manager.

  4. In the playback section, set USB 2.0 Audio Devices (UAC2.0) as the default device.

Audio Evaluation

The evaluation board has three indicator lights: USB, OPT, and COX, representing USB, optical, and coaxial modes respectively.

  • Short press the MODE button, and the USB indicator light turns on to play USB audio.
  • Short press the MODE button, and the OPT indicator light turns on to play OPT audio.
  • Short press the MODE button, and the COX indicator light turns on to play COX audio.