Hi-Res Audio Board Designed for Music Fanatic.
Khadas Tone Board is an amazing USB external Hi-Fi sound card in Khadas family.
Its excellent performance and compatibility will take the listening experience into a whole new level.
And that’s just the beginning…
Key Performance Parameters:
THD+N ≤ 0.000337%
Tone Board has excellent THD+N parameter that means we can
barely hear the distortion over the THD+N signal ratio.
SNR ≥ 120dB
The higher the SNR means the clearer the sound in audio system.
Generally, the SNR need to be lower than 110 dB in Hi-Res audio system.
DNR ≥ 120dB
The DNR which let’s hear a wide range and very subtle sounds,
meanwhile, the sound field is horizontal and vertical,
and the sense of space and layering is like a live concert.
Crosstalk (Channel Separation) ≥ 127dB
The higher the crosstalk separation, the higher the isolation level of the
left and right channel so that you can get stunning stereo effects.
Frequency Response ± 0.08dB
Tone Board can output stable enough signals at each frequency point. For the bass,
the low frequency sound is enough but not boom and no dryness, and the alto,
the person’s Voice of middle frequency is close to the front,
the tooth sound is clear and it has the high definition and
the degree of separation, finally the treble is not sharp
and it’s transparent with depth.
Sample Rate and Compatibility.
The XMOS USB audio to ensure a rock-solid connection. We selected to use the
XMOS XU208 microcontroller for its stability, powerful functionality,
and its reliability. You can be sure that the Tone Board will just
work when connected to most audio sources,
such as computers and mobile media terminals.
Ultra-low Phase Noise Clock Jitter.
The SiTime ultra performance oscillator SiT820&8209 series with just 0.5ps phase jitter
and output frequency stability as low as ± 10PPM. We chose it as a reference clock
in our audio system so that the data clock jitter < 30ps.
Inherit Khadas Consistent Breakthrough Design.
We integrated XMOS advanced multi-core RISC architecture microcontroller and ESS flagship 32-Bit stereo mobile audio
DAC ES9038Q2M in such a small PCB. And, we choose 3 independent high performance OPA and
4 ultra-low phase jitter oscillator for best noise reduction. The same as you think,
each power supply path is powered by an independent, ultra-low noise
power supply and the OPA is powered up to ±5.5V.
There are a lot of examples of such designs, but in general,
we try our best to get better performance through optimal design.
Flexible Interfaces Support Secondary Development
Khadas aspires to help the DIY enthusiasts grow by achieving their ideas and dreams step by step, as well as Tone Board.
Khadas Tone Board has 2 RCAs for analog output @ 2.0Vrms
and 1 RCA for S/PDIF in or out.
For Extension:
One 30-Pins FPC Connector for 8 Channels Analog Output ExtensionTwo 10-Pins FPC Connectors for OLED Display and I2S ExtensionAnd Others:
One 40-Pins Female header is used for connecting VIMsOne 20-Pins SMT Header for debugging XMOS and VIMsOf course, users can enjoy Tone Board via USB-C interface and Tone Board is a ideally choice for audio developers for obvious reasons.
Khadas Tone Board is an amazing USB external Hi-Fi sound card in Khadas family.
Its excellent performance and compatibility will take the listening experience into a whole new level.
And that’s just the beginning…
Key Performance Parameters:
THD+N ≤ 0.000337%
Tone Board has excellent THD+N parameter that means we can
barely hear the distortion over the THD+N signal ratio.
SNR ≥ 120dB
The higher the SNR means the clearer the sound in audio system.
Generally, the SNR need to be lower than 110 dB in Hi-Res audio system.
DNR ≥ 120dB
The DNR which let’s hear a wide range and very subtle sounds,
meanwhile, the sound field is horizontal and vertical,
and the sense of space and layering is like a live concert.
Crosstalk (Channel Separation) ≥ 127dB
The higher the crosstalk separation, the higher the isolation level of the
left and right channel so that you can get stunning stereo effects.
Frequency Response ± 0.08dB
Tone Board can output stable enough signals at each frequency point. For the bass,
the low frequency sound is enough but not boom and no dryness, and the alto,
the person’s Voice of middle frequency is close to the front,
the tooth sound is clear and it has the high definition and
the degree of separation, finally the treble is not sharp
and it’s transparent with depth.
Sample Rate and Compatibility.
The XMOS USB audio to ensure a rock-solid connection. We selected to use the
XMOS XU208 microcontroller for its stability, powerful functionality,
and its reliability. You can be sure that the Tone Board will just
work when connected to most audio sources,
such as computers and mobile media terminals.
Ultra-low Phase Noise Clock Jitter.
The SiTime ultra performance oscillator SiT820&8209 series with just 0.5ps phase jitter
and output frequency stability as low as ± 10PPM. We chose it as a reference clock
in our audio system so that the data clock jitter < 30ps.
Inherit Khadas Consistent Breakthrough Design.
We integrated XMOS advanced multi-core RISC architecture microcontroller and ESS flagship 32-Bit stereo mobile audio
DAC ES9038Q2M in such a small PCB. And, we choose 3 independent high performance OPA and
4 ultra-low phase jitter oscillator for best noise reduction. The same as you think,
each power supply path is powered by an independent, ultra-low noise
power supply and the OPA is powered up to ±5.5V.
There are a lot of examples of such designs, but in general,
we try our best to get better performance through optimal design.
Flexible Interfaces Support Secondary Development
Khadas aspires to help the DIY enthusiasts grow by achieving their ideas and dreams step by step, as well as Tone Board.
Khadas Tone Board has 2 RCAs for analog output @ 2.0Vrms
and 1 RCA for S/PDIF in or out.
For Extension:
One 30-Pins FPC Connector for 8 Channels Analog Output ExtensionTwo 10-Pins FPC Connectors for OLED Display and I2S ExtensionAnd Others:
One 40-Pins Female header is used for connecting VIMsOne 20-Pins SMT Header for debugging XMOS and VIMsOf course, users can enjoy Tone Board via USB-C interface and Tone Board is a ideally choice for audio developers for obvious reasons.
and most of my audio are flac files
when it comes to libreelec device compability
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