Main Control Platform XMOS
UAC Protocol 高速 UAC2.0 (High-speed)
Synchronous/Asynchronous Mode 异步模式
Audio Interface I2S
Audio Format PCM/DSD/DoP/MQA
Sampling Rate 44.1kHz~384kHz
Bit Depth 16/24/32 bit
ASIO Support 支持
Compatible Operating Systems Linux / Android / IOS / macOS等支持UAC2.0标准的系统(Windows场景下需要额外安装驱动)

The XMOS USB MQA tail solution is a solution launched by Papaya Electronics based on the XMOS UAC solution, capable of supporting full PCM384/MQA decoding while maintaining low power consumption.

Due to high requirements on performance and power consumption, this solution is currently only suitable for the latest XCORE.AI architecture's XU316-1024-QF60B-PP24 chipset platform:

Model Architecture Year Description
XU316-1024-QF60B-PP24 XCORE.AI 2021 XMOS's latest chipset platform, replacing XU208 and XU216 chips

Evaluation Board

Name Function Description Status Purchase
MQA_HPM_CS131 Portable Decoding Ear Amplifier Evaluation Board XMOS USB Audio Evaluation Board Coming Soon Coming Soon

Matching Chip

Name Function Description Status Purchase
XU316-1024-QF60B-PP24 XMOS USB Audio recommended model On Sale [Taobao Link] (https://item.taobao.com/item.htm?spm=a1z10.5-c-s.w4002-23426065514.11.4518efe2dzhxOP&id=666779269170)



Nowadays, more music enthusiasts and HiFi aficionados hope to have a better listening experience on mobile devices. However, in reality, mobile phones only have Type-C/Lighting ports, lack headphone jacks, and do not have built-in Hi-Res sound cards; the device storage space/network bandwidth is limited, and it is not possible to store/online play many high bitrate HD audio; traditional HiFi decoders are large in size, not convenient to carry outside, and ordinary portable decoders cannot meet the requirements of HiFi enthusiasts.

Using the MQA tail as an expansion sound card can perfectly solve the above problems. Papaya's MQA tail solution implements USB UAC2.0 protocol asynchronous transmission of HD bitrate audio, supports up to 384 kHz PCM, DSD256, and full MQA decoding, ensuring timely, bit-perfect audio parsing. The MQA tail also enhances the portability of the device while meeting the needs of HiFi audio consumers for high-fidelity lossless playback devices, making it an excellent solution for meeting user needs for Hi-Res audio on mobile devices.

Project Overview

The XMOS USB MQA tail solution is an excellent choice for portable high-performance HiFi play sound card solutions, perfectly combining XMOS's proprietary XCORE architecture, high inversions and flexible I/O, high precision clock synchronization and high fidelity digital audio transmission, and MQA's high-performance algorithm, which includes:

Technical Documents

Software Download