HF86611_VB1/HF86611Q_VB1¶
Multi-Channel PCM 768kHz/DSD512 USB HiFi Decoder Supporting USB/4CH SPDIF Input and I2S Output
1. Introduction¶
1.1 Product Description¶
HF86611_VB1/HF86611Q_VB1 is a USB multi-channel and multi-interface HiFi audio decoder that supports up to PCM 768kHz/DSD512, designed specifically for HiFi audio DAC applications.
HF86611_VB1/HF86611Q_VB1 supports multiple standard audio formats, including USB Audio Class 1.0/2.0, S/PDIF and I²S interfaces. The flexible audio interfaces allow HF86611_VB1/HF86611Q_VB1 to connect to various audio data converters, digital audio receivers and transmitters, as well as digital signal processors.
It is compatible with AES3, S/PDIF, IEC 60958, and EIAJ CP-1201 digital audio interfaces.
HF86611_VB1/HF86611Q_VB1 provides multiple input and output modes, including USB input/I²S output and S/PDIF input/I²S output, to meet the requirements of different application scenarios.
Important Note
Model HF86611Q_VB1 supports MQA audio decoding, while model HF86611_VB1 does not support this feature.
1.2 Product Features¶
Audio Performance Features
- Supports input and output sample rates up to 768kHz
- Supports DSD64/128/256/512 formats
- HF86611Q_VB1 supports MQA decoding
- Built-in SSRC and ASRC modules, supporting sample rate conversion between different interfaces and different sample rates
- Supports 16–32-bit audio data formats
Interface Support Features
- Multiple digital interface support
- Supports USB audio input
- Supports I²S master mode audio output
- Supports S/PDIF audio input
- Supports UART configuration interface
- Supports four S/PDIF input channels
USB Function Features
- USB interface features
- Supports UAC 1.0
- Supports UAC 2.0
- Supports firmware upgrade via USB
- Supports HID and can upgrade MCU firmware via HID
System Compatibility - UAC 2.0 protocol, supports ASIO - Supports multiple operating systems, such as Windows, Linux, Android, macOS and iOS
1.3 Application Scenarios¶
- USB HiFi Decoder
- USB HiFi Audio Interface
- USB HiFi Digital Player
1.4 Product Functional Block Diagram¶
1.5 Ordering Information¶
| PRODUCT | ORDERING NUMBER | PACKAGE BODY | SIZE (NOM) | Hardware Model | Comments |
|---|---|---|---|---|---|
| HF86611_VB1 | HF86611-VB1 | SMT STAMP-30 | 19x26mm | A316-1926-V1 | |
| HF86611Q_VB1 | HF86611Q-VB1 | SMT STAMP-30 | 19x26mm | A316-1926-V1 | Supports MQA decoding |
2. Modes and Specifications¶
2.1 Supported Input/Output Modes¶
| Mode No. | Input/Output Mode | Description |
|---|---|---|
| 1 | USB(UAC2.0) in-I²S(Master) out | USB input, I²S output, UAC2.0 |
| 2 | USB(UAC1.0) in-I²S(Master) out | USB input, I²S output, UAC1.0 |
| 3 | S/PDIF1 IN-I²S(Master) OUT | S/PDIF channel 1 input, I²S output |
| 4 | S/PDIF2 IN-I²S(Master) OUT | S/PDIF channel 2 input, I²S output |
| 5 | S/PDIF3 IN-I²S(Master) OUT | S/PDIF channel 3 input, I²S output |
| 6 | S/PDIF4 IN-I²S(Master) OUT | S/PDIF channel 4 input, I²S output |
2.2 Detailed Parameters of Each Operating Mode¶
2.2.1 USB(UAC2.0) in → I²S out Mode¶
Supported Audio Formats and Sample Rates:
| Audio Format | Supported Sample Rates |
|---|---|
| PCM | 44.1kHz, 48kHz, 88.2kHz, 96kHz, 176.4kHz, 192kHz, 352.8kHz, 384kHz, 705.6kHz, 768kHz |
| DSD Native | DSD64, DSD128, DSD256, DSD512 |
| DOP | DOP64, DOP128, DOP256 |
| MQA | Supported only by HF86611Q_VB1 |
2.2.2 USB(UAC1.0) in → I²S out Mode¶
Supported Audio Formats and Sample Rates:
| Audio Format | Supported Sample Rates |
|---|---|
| PCM | 48kHz |
2.2.3 S/PDIF in → I²S out Mode¶
Supported Audio Formats and Sample Rates:
| Audio Format | Supported Sample Rates |
|---|---|
| PCM | 44.1kHz, 48kHz, 88.2kHz, 96kHz, 176.4kHz, 192kHz |
3. Pin Configuration and Functions¶
3.1 HF86611_VB1/HF86611Q_VB1 Pin Layout¶
3.2 HF86611_VB1/HF86611Q_VB1 Pin Description¶
| Pin No. | Name | Type | Function |
|---|---|---|---|
| 1 | GND | P | Module ground |
| 2 | 3V3 | P | Module 3.3V power supply |
| 3 | X1D11 | I/O | Connected to Pin 16 MCLK |
| 4 | X1D01 | I/O | S/PDIF channel 4 input |
| 5 | X1D09 | I/O | NC |
| 6 | X1D10 | I/O | NC |
| 7 | X1D00 | I/O | NC |
| 8 | X0D11 | I/O | UART_RX, connected to MCU_TX |
| 9 | X0D00 | I/O | UART_TX, connected to MCU_RX |
| 10 | X0D31 | I/O | NC |
| 11 | X0D30 | I/O | CTL_MUTE; control output, active high |
| 12 | X1D34 | I/O | S/PDIF channel 3 input |
| 13 | X0D43 | I/O | NC |
| 14 | X0D41 | I/O | NC |
| 15 | X0D42 | I/O | NC |
| 16 | MCLK | I/O | Active crystal 49.152/45.1584MHz clock output |
| 17 | X0D40 | I/O | NC |
| 18 | X0D38 | I/O | I²S_OUT_DATA0(Master) |
| 19 | X0D37 | I/O | NC |
| 20 | X0D36 | I/O | I²S_OUT_LRCLK(Master) |
| 21 | X0D35 | I/O | I²S_OUT_BCLK(MASTER) |
| 22 | X0D29 | I/O | NC |
| 23 | X1D22 | I/O | S/PDIF channel 2 input |
| 24 | X1D19 | I/O | NC |
| 25 | X1D16 | I/O | NC |
| 26 | USB_DP | I/O | USB data positive |
| 27 | USB_DM | I/O | USB data negative |
| 28 | X1D18 | I/O | NC |
| 29 | X1D17 | I/O | NC |
| 30 | X1D13 | I/O | S/PDIF channel 1 input |
Pin Type Description
- In the table, I/O type definitions: I = input, O = output, P = power, I/O = input/output
4. Revision History¶
| Version | Date | Description | Editor |
|---|---|---|---|
| V1.0 | 2025-05-07 | Initial version release | |