I've been dusting off the old grey cells and checking out the botic configuration settings...
Fixed it and now playing music with the Pure software running as an MPD UPnP renderer. I had forgotten that my SO3 isolator with 90KHz oscillators had the clock divider set at 1:4. Set the clock frequencies correctly in optargs and all is well.
I'm old and easily confused nowadays - I was right first time, the NDK oscillators in my Acko SO3 isolator/reclocker are 90 and 98MHz.
I don't have any drawings but a quick check with my verniers reveals the 10k+10k trafos I have have 4 pins on one side spaced at 0.2" intervals. The spacing of the two rows is on a metric (not 0.1") grid for some reason, 12mm between them.
For the silkscreen, width is 25.5mm and depth is 17.5mm.
For the silkscreen, width is 25.5mm and depth is 17.5mm.
Thank you @abraxalito.
Supposing soldering pins 1mm?
Do you´ve the reference of the one you used?
JP
Supposing soldering pins 1mm?
Do you´ve the reference of the one you used?
JP
I've used a few electrical configurations but mechanically they're the same EE25 core set. This one is my most recent purchase - there are measurements on the page I see now.
The pin diameter is 0.7mm.
600:20K?????????????? ???? ???????-???
The pin diameter is 0.7mm.
600:20K?????????????? ???? ???????-???
Apologies - having scrolled back along the thread I see pics of a different kind being used, with only 3 pins.
Looks like this : R13????10K:20K???permalloy?????????1.4???-???
I don't have any of this type so can't oblige with mechanicals.
Looks like this : R13????10K:20K???permalloy?????????1.4???-???
I don't have any of this type so can't oblige with mechanicals.
You have the info now but if necessary you could download the gerber files and then use a gerber viewer to get the X,Y coordinates of the pads and any drill hole sizes.
Hi, guys
Could somebody help me with running PPY reclock with DSC 2.6?
here is what I have
- I have installed HQPlayer, configured. tested with Amanero - working
- connected reclocker to DSC DAC 2.6. tested signals - looks like they are ok.
- no sound.
Could somebody help me with running PPY reclock with DSC 2.6?
here is what I have
- I have installed HQPlayer, configured. tested with Amanero - working
- connected reclocker to DSC DAC 2.6. tested signals - looks like they are ok.
- no sound.
An externally hosted image should be here but it was not working when we last tested it.
An externally hosted image should be here but it was not working when we last tested it.
If higher quality resistors and power supplies are used in DSC1, will DSC1 have a chance to make better sound? I think it can. Welcome to visit my DSD DAC.
seems...
It seems kind of silly to me to use leaded resistors for this design. Short paths, and less distortions in the resistors would be a good idea, and that can be better achieved with quality SMD types. Leaded resistors just add two additional junctions, and their associated noise/distortions.
If one really wanted to try some very good resistors, why not build a DSC style DAC with SMD foil resistors-even better if one is a manufacturer, get Texas Components to make some SMD metal foil resistor networks resulting in even fewer solder junctions to the board. While the resistor network is still "analog" in a sense in this design, it does have to operate at high speed, and little things like solder joints and material junctions could make actual differences.
It seems kind of silly to me to use leaded resistors for this design. Short paths, and less distortions in the resistors would be a good idea, and that can be better achieved with quality SMD types. Leaded resistors just add two additional junctions, and their associated noise/distortions.
If one really wanted to try some very good resistors, why not build a DSC style DAC with SMD foil resistors-even better if one is a manufacturer, get Texas Components to make some SMD metal foil resistor networks resulting in even fewer solder junctions to the board. While the resistor network is still "analog" in a sense in this design, it does have to operate at high speed, and little things like solder joints and material junctions could make actual differences.
I test I2S RJ with two chip DAC PCM58:
BBB Data0-30 (P9) to chip PCM 58_1 (DATA - PIN 19)
BBB Data0-41 (P9) to chip PCM 58_2 (DATA - PIN 19)
BBB BCK -31 (P9) to PCM 58 (CLK - PIN 16)
BBB LRCK - 29 (P9) to PCM58 (LE- PIN 17)
Result only white noise, not have music.
please help me PPY. Thanks a lot!
I am not familiar with the PCM58 chip.
But according to the datasheet it uses Left Justified mode (MSB).
Therefore, you need add the snd_soc_botic.dai_format=16387 parameter. Also, you must reduce the bit width to 16 or 24 bits snd_soc_botic.blr_ratio=32 or 48
This is the file /boot/uEnv.txt.
More detailed instructions can be found here: http://bbb.ieero.com/
But according to the datasheet it uses Left Justified mode (MSB).
Therefore, you need add the snd_soc_botic.dai_format=16387 parameter. Also, you must reduce the bit width to 16 or 24 bits snd_soc_botic.blr_ratio=32 or 48
This is the file /boot/uEnv.txt.
More detailed instructions can be found here: http://bbb.ieero.com/