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TOPIC: miniSHARK + PCM2707

miniSHARK + PCM2707 6 years 4 months ago #12723

  • Rover
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Hello!
Have a working draft CarPC: miniSHARK + 8 ch DAC PCM1794. Connected to CarPC via coax SPDIF. (Scheme 1 in attachment)
Have the task of organizing a second entrance via USB.
Converter USB/I2S on PCM2707 (Scheme 2 in attachment) switched to SLAVE
I can not figure out where to connect the LRCK and BCLK.
Please help me.
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Last Edit: 6 years 4 months ago by Rover.
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miniSHARK + PCM2707 6 years 4 months ago #12724

  • curryman
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miniSHARC is master and LRCK and BCK is the same as being used for the DACs. Problem in your configuration is that output samplerate of PCM2707 depends on the file that is played back, but samplerate of SHARC is fixed. You'd need an ASRC in between. Easier is to use SPDIF here.

regards, Daniel
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miniSHARK + PCM2707 6 years 4 months ago #12726

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Daniel, thanks for the answer.
But I need to connect via USB to miniSHARC Android device.
Converter USB / SPDIF is not suitable.

How to connect to the converter miniSHARC USB\ I2S?
The converter can be any, not necessarily on the PCM2707
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miniSHARK + PCM2707 6 years 4 months ago #12733

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I can't follow, what's the problem with USB to SPDIF? For the Android device it's just a soundcard, isn't it :unsure:

USB to I2S converter won't practically work without a sample rate converter. The SPDIF input of the miniSHARC already has a samplerate converter implemented.

kind regards, Daniel
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miniSHARK + PCM2707 6 years 4 months ago #12745

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I will explain. SPDIF input CarPC busy.
There is a task to connect the second device on Android, switching between devices using the plug miniSHARC_4x8_1. Use DIGI-FP because of the big size is not possible: (.
Is there an alternative solution to connect other devaysa DIGI-FP instead ?
Where can I see the connector pinout DIGI-FP?
Last Edit: 6 years 4 months ago by Rover.
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