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Phaten XMOS XU316 HiFi Decoder ZeroCode Solution

Solution Overview

XMOS XU316, with its unique multi-core architecture and flexible software-defined interfaces, not only achieves nanosecond-level ultra-low latency performance but also simultaneously processes multiple digital audio interfaces and protocols, securing its leading position in the USB HiFi high-end decoder market. However, this powerful multi-core architecture also brings higher software development complexity, causing customers to face significant technical barriers in practical applications, thereby extending product development cycles and time-to-market.

To address this pain point, Phaten has developed the XMOS XU316 USB HiFi decoder ZeroCode solution, helping customers quickly implement products and significantly shorten time-to-market.

System Architecture

XU3160 Schematic Diagram.png

The right figure shows the system architecture of this solution. The core is the XMOS XU316 processor with ZeroCode firmware, communicating with MCU via UART. The system supports multiple inputs (USB/SPDIF/I2S) and outputs (SPDIF/I2S), and can flexibly interface with DAC chips.

The MCU customizes the ZeroCode firmware in XMOS XU316 via UART, and is responsible for controlling LCD displays, button inputs, and LED indicators, allowing customers to focus on product differentiation development.

Core Advantages

  • Complete Technical Ecosystem Support

    • Provides open-source MCU protocol stack and sample code

    • Complementary PC-side debugging tools (serial port/HID)

    • Professional technical support services

  • Flexible Product Differentiation Solution

    • Product differentiation functions implemented through MCU, maintaining stable core architecture

    • Unified firmware supporting multiple product models, optimizing inventory management

    • Serial port configuration interface supporting rapid product customization

  • Zero Development Threshold

    • Pre-integrated full suite of audio processing functions, no code development required for XU316, ready to use out of the box

    • Software R&D investment reduced by 95%, software development cycle shortened to 1-3 days

    • Complete development documentation and debugging tools provided for quick development startup

Supported Features

  • Audio Interface Support

    • USB IN → I2S OUT
    • SPDIF IN → I2S OUT
    • I2S IN → I2S OUT
    • USB IN → SPDIF OUT
    • SPDIF IN → SPDIF OUT
    • I2S IN → SPDIF OUT

  • Supported Features

    • Supports up to PCM768KHz/DSD512 sampling rates
    • Supports up to 16-band EQ adjustment
    • Supports ASRC/SSRC
    • MQA decoding support
    • HID communication functions
      • Bidirectional pass-through of MCU and HID commands
      • MCU firmware online upgrade via HID protocol

Development Support

  • Complete Technical Documentation

    • Detailed interface specification documents

    • Development guide manuals

    • Application notes

  • Development Tools

    • PC-side serial debugging tools

    • HID protocol debugging tools

    • MCU sample code

Solution Application Scenarios

  • Desktop USB HD multi-function audio systems
  • Desktop USB HD audio decoders

Solution Products

Product Model Product Name Product Image
PBAX316-90108MV1 Evaluation Board XU316 Hi-Fi Multi-channel Audio Decoder Evaluation Board PBAX316-90108MV1 Evaluation Board
AX316 -1926V1 XU316 Multi-channel Audio Decoder Module XU316 Multi-channel Audio Decoder Module