Drive NOS AD1865/62,PCM1704/02/63,TDA1541 from FIFO: Universal I2S-PCM driver board - Page 35 - diyAudio
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Old 10th April 2013, 09:41 AM   #341
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Quote:
Originally Posted by iancanada View Post
Hi merlin el mago,

I made a full set of cables for you. Both u.fl and ph2.0 are included. Together with the u.fl sockets and some heat shrinks, they were shipped this evening in an envelope . You will receive in a week. Hope they work for you.

Regards,

Ian
Thanks Ian, I will let you know when I got it.

Cheers

Felipe
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Old 10th April 2013, 09:42 AM   #342
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Quote:
Originally Posted by vzs View Post
So all three leds from the converter are lit up or just the power? No, only lits the power LED

I suppose you:
- checked -without powering the units- that everything is connected and nothing shorts to ground Yes
- measured with your scope that you get the correct frequencies at each and every MCLK/SCK/CLK/WS/LLLR input and output pins I will do today
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Old 10th April 2013, 10:27 AM   #343
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The U.FL with MCLK was not connected now LEDAUX LED is lit togheter the PWR LED, still I2S LED don't lit, attached pic with WS, SCK & MCLK arriving to the Driver NOS, obviously I can't measure nothing at LLLR & CLK Driver NOS output.
Attached Images
File Type: jpg DSC00326.jpg (388.0 KB, 171 views)
File Type: jpg DSC00327.jpg (378.2 KB, 162 views)
File Type: jpg DSC00328.jpg (471.2 KB, 155 views)
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Old 10th April 2013, 11:52 AM   #344
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Turned off and powered on LEDAUX now don't lit
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Old 10th April 2013, 11:56 AM   #345
JLOP is offline JLOP  France
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No good luck for cataluna today (;-)

Jean-Louis
Paris
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Old 10th April 2013, 11:58 AM   #346
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Certainly a bad day for me and a good day for BarÁa

Felipe
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Old 10th April 2013, 08:40 PM   #347
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No good luck for cataluna today (;-)

Jean-Louis
Paris
Jean-Louis, no good luck for France today(;-)

Felipe
Catalunya
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Old 11th April 2013, 12:43 AM   #348
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Quote:
Originally Posted by merlin el mago View Post
Turned off and powered on LEDAUX now don't lit
Meaning of LEDs indicators on the daughter board :

No PWR: power fail

No LEDAUX with PWR: MCLK problem

No I2S with PWR and LEDAUX: I2S is wrong

Hope you can address the problem

Regards,

Ian
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Old 11th April 2013, 02:52 AM   #349
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Default Real waveforms driving PCM1704 at 96 KHz and 192 KHz

Iím trying to replay the real case of merlin el mago on the last daughter board I keep.

Jumper settings: J24bit and JTAIL closed, all others open

MCLK was fixed at 24.576MHz

24 bit I2S generator was running at 96 KHz and 192 KHz

The screen shot was captured from my logic analyzer. Unfortunately I donít have a PCM1794 DAC.

Loop test confirmed bit perfect.

Maximal Fs was tested at 384 KHz, but MCLK has to be 49.152MHz or 98.304MHz with this frequency.

It seems OK from the waveform. Please let me know if you can find any problem.

Regards,

Ian
Attached Images
File Type: png PCM1704_96KHz.png (24.2 KB, 132 views)
File Type: png PCM1704_192KHz.png (25.7 KB, 123 views)
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Old 11th April 2013, 08:08 AM   #350
vzs is offline vzs  Europe
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Quote:
Originally Posted by iancanada View Post
...
It seems OK from the waveform. Please let me know if you can find any problem...
Waveforms seems OK from both format and timing point of view.

As far as clock modes are concerned I would recommend everyone to start with JCONT closed -continuous clock operation- . Only if this works try with JCONT open -stopped clock operation-

Regards,
Zsolt

p.s. I got my Amanero board and 45.xx/49.xx MHz clocks so I plan to try in 1-2 weeks the 8x mode
...too sad I missed a PCM1704 eval board on swap-meet

Last edited by vzs; 11th April 2013 at 08:12 AM.
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