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PH73311L-VC1/PH73311LQ-VC1

Low-Power USB HiFi Decoder with Cost-Effective Audio Processing

PH73311L-VC1/PH73311LQ-VC1 Block Diagram PH73311L-VC1/PH73311LQ-VC1 is a USB low-power HiFi audio decoder based on the A316-Mini-V1 module, supporting up to PCM 384KHz/DSD256, specifically designed for portable USB HiFi audio applications.

PH73311L-VC1/PH73311LQ-VC1 supports multiple standard audio formats, including USB Audio Class 1.0/2.0 interfaces, providing USB input to I²S/S/PDIF output transmission functionality.

PH73311L-VC1/PH73311LQ-VC1 provides multiple input/output modes, including USB input/I²S output and USB input/S/PDIF output, meeting various application scenario requirements. It supports high-quality audio processing and delivers a pure sound output experience.

PH73311L-VC1/PH73311LQ-VC1 features optimized low-power design, particularly suitable for portable devices, making it an ideal choice for cost-effective USB HiFi decoders.

PH73311L-VC1/PH73311LQ-VC1 Datasheet A316-Mini-V1 Module Datasheet 🛒 Purchase Samples

Chip Type DSD 512 PCM 768KHz PCM 384KHz PCM 192KHz
Low-Power Chip 113 mW 146 mW 128 mW 123 mW
Standard-Power Chip 227 mW 232 mW 227 mW 222 mW
Power Saved 114 mW 86 mW 99 mW 99 mW
Power Saved % 50.22% 37.07% 43.61% 44.59%
  • Low-Power Design
    • Supports low-power and high-performance modes
    • Suitable for portable audio devices
  • High-Performance Audio Processing
    • Supports input and output sampling rates up to 384kHz
    • Supports DSD64/128/256 formats
    • Supports DOP128 format
    • Supports 16-32bit audio data formats
  • Professional Audio Processing
    • Built-in SSRC and ASRC modules supporting conversion between different interfaces and sampling rates
      • SSRC Specifications: THD+N (@1kHz, 0dBFs) < -130dB, SNR: > 140dB
      • ASRC Specifications: THD+N (@1kHz, 0dBFs) < -130dB, SNR: > 135dB
    • Supports 8-band equalizer adjustment
    • Supports S/PDIF output
    • Supports MQA decoding (PH73311LQ-VC1 model supports)
  • Supports USB audio input
  • Supports I²S master mode audio output
  • Supports S/PDIF audio output
  • Supports UART configuration interface
  • Supports UAC 1.0
  • Supports UAC 2.0
  • Supports firmware upgrade via USB
  • Supports HID for MCU firmware upgrade
  • UAC 2.0 protocol with ASIO support
  • Supports multiple operating systems including Windows, Linux, Android, macOS, and iOS

Normal Operating Conditions

Function Minimum Typical Maximum Unit
Operating Temperature 0 - 70
3.3V Operating Voltage 3.0 3.3 3.6 V
1.8V Operating Voltage 1.62 1.80 1.98 V
0.9V Operating Voltage 0.855 0.90 0.945 V

Product Dimensions 13±0.1mm(L)X13±0.1mm(W)X0.8±0.1mm(H)

Mode No. Input/Output Mode Description
1 USB(UAC2.0) in-I²S(Master) out USB input, I²S output, UAC2.0, max supports 384KHz/DSD256
2 USB(UAC1.0) in-I²S(Master) out USB input, I²S output, UAC1.0, fixed 48KHz
3 USB IN(UAC2.0)-SPDIF OUT USB input, S/PDIF output, UAC2.0, max input 384KHz, output 192KHz
  • USB Low-Power HiFi Decoder
  • Digital Audio Converter
  • Cost-Effective USB HiFi Audio Solution

Documents and Tools

Type Title Download
Datasheet PH73311L-VC1 Datasheet []
Datasheet A316-Mini-V1 Module Datasheet []
Reference Design []
Application Manual []
Product Configuration Protocol XU316 USB HiFi Decoder Standard Product Configuration Protocol []
Type Description Download
Debugging Tools Debugging Tools
Drivers USB Driver
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    For evaluating the PH88311L_VC1 module performance in portable HiFi audio applications, supporting AI noise reduction, spatial audio, and FPS gaming mode, providing complete software development tools

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  • Portable Premium HiFi Audio Decoder Solution with AI Noise Reduction/Spatial Audio/FPS Mode


    Low-power portable HiFi audio decoder solution based on PH88311L_VC1, evaluating the following applications: supports high-resolution audio processing, provides customized spatial audio experience for gaming, music, and movies, achieves 360-degree surround sound through 2 channels, AI DNR noise reduction technology based on deep learning, intelligently identifies and eliminates background noise and transient noise, provides clear calling and recording experience, and FPS gaming mode experience.

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