XMOS XU208-128-QF48
8 cores up to 500MIPS, compatible with USB 2.0.
Ultra-Quiet Power
Ultra-low noise, high PSRR LDO designed to power Hi-Fi applications.
RCA Connector
High-quality RCA, let you enjoy audio with delicate, clear, powerful and rich sound details.
ESS ES9038Q2M DAC
The industry's highest performance 32-bit mobile DAC with unprecedented dynamic range and ultra-low distortion.
Accurate Low-Noise Clock
Ultra-low phase noise crystal oscillator with excellent phase noise characteristics.
Compatible Audio File Formats
APE, FLAC, OGG, WAV, ACC, ALAC, MP3, WMA, DSD, and more!
DESCRIPTION
Tone Board is a USB external HiFi sound card specially developed for Khadas VIMs by Khadas brand series products. Its superior
performance and compatibility take the audiovisual experience to a whole new level. We integrated the advanced XMOS multi-core
RISC microcontroller and ESS flagship 32-bit stereo mobile audio DAC ES9038Q2M into a small PCB. At the same time, we selected
three independent high-performance OPAs and four ultra-low phase jitter oscillators for the audio system. As you can imagine, each
power path is controlled by a separate ultra-low noise CMOS linear regulator with an OPA of ± 5.5V. In addition to the powerful
hardware configuration, we also maximize the performance through excellent design.
PERFORMANCE
DATA FROM ESS PROFESSIONAL LABS
Total Harmonic Distortion + Noise ≤ 0.000337%
Signal / Noise Ratio ≥ 120dB
Dynamic Noise Reduction ≥ 120dB
Crosstalk (Channel Separation) ≥ 127dB
Frequency Response ± 0.08dB
Sampling Rate and Compatibility
Ultra-Low Phase Noise Clock Jitter
Supports Multiple Lossless Audio Formats
TWO VERSIONS
GENERIC AND VIM EDITIONS
Generic Edition VIM Edition
The universal version is designed to work with a The VIM version is designed to "docking" with Khadas
standalone Mac, PC or SBC via the built-in USB-C data Edge V, VIM3L, VIM3, VIM2 and VIM1 SBC to form a
and power port. There are additional un-soldered GPIO complete Hi-Fi audio computer device. You can also
headers on the board. use radiators and fans with the Tone Board.
INTERFACES
FLEXIBLE I/O SUPPORTS DEVELOPMENT
Khadas aims to gradually realize the ideas and dreams of developers to help makers grow. The two versions of the Tone Board's RCA
output interface are the same, both have 2 RCA for analog output @ 2.0Vrms, and 1 RCA for S / PDIF input or output.
Expansion:
* 1 30-pin FPC connector for 8-channel analog output expansion
* Two 10-pin FPC connectors for OLED display and I2S expansio
Other:
* One 40-pin female connector for VIM
* A 20-pin SMT header for debugging XMOS and VIM
Users can directly connect their Tone Board to the PC via the USB-C interface, and the Tone Board is the ideal choice for audio
developers. Khadas' New VIM Heatsink can also be used with VIM and Tone Board.
COMPATIBILITY
TONE BOARD SUPPORTS MULTIPLE OSES
SPECIFICATIONS
[1] Android support only 44.1KHz output due to the Sample Rate Conversion(SRC) resampling implementations.
[2] Should also support other Single Board Computers(SBCs). FAQ
Q:Why does the tracking system show no update after I've received my tracking number?
A:Usually China Post will update the tracking information to after 8-10 days.
Q:Should I bear the shipping cost?
A:We will provide "free shipping" by China Post. Alternatively, you could also pay for express shipping, and your package will
arrive within 1 week.
Q:Where can I check the tracking information for my package?
A:You can check your tracking information from . The website supports multiple-languages.
Q:How long will it take for my package to arrive?
A:You can refer to this detailed data-table. Please note that the statistical data is only for reference, the specific time is
subject to dynamically changing conditions.
Q:What should we do when we encounter technical problems?
A:You can submit your questions directly to our forum, and our engineers will reply to you as soon as possible.
Q:Where can I find ways to install the software?
A:For software installation or product details, please visit
Audited Supplier 
Audited Supplier 
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