Break JP1 and JP2 only if you are using direct drive, without the shift registers. Otherwise leave them as they are. x1, 2 and 3 are UFL connectors. you do not need these if you are using the direct i2s pads.
Does this also apply to PCM63 ? I have a hissing sound like a radio station - only with B3 😬
Closed B1 B2 and B3. Still static noise. When play is pressed. When I change the frequencies, the noise also changes.
Noise is full stereo... Changed the USB cable, restarted the computer.. Checked I2S again 2, 4, 6 is H3:11 H3:13 H3:15
GND is shared because i have onother PSU 2 a separate one only for the digital part.
I have no idea what to look at next... I don't have an oscilloscope .... 😬
I mixed I2S - It is plaing now 🤣
mikorist,
Nice work getting your rig working.
Are those Sparkos opamps you are using? Have you compared them to other opamps? If so what are your impressions?
Nice work getting your rig working.
Are those Sparkos opamps you are using? Have you compared them to other opamps? If so what are your impressions?
The DAC plays all possible musical genres like nothing. It works like a crisp Swiss watch. I don't know how PCM63P-K plays but this Y version is top-notch. No bugs - chopping or anything weird. This PCB is perfect. I have never heard such a vivid sound coming out of headphones.The smile does not leave my face. 😍
Yep....
SS3601 - I asked from
Andrew to match me two pieces with an even tighter resistor tolerance...The separation and stereo effect that comes out of all this together is - eesoteric. I think it's the best opamp for the money. But it's still a matter of taste that you decide on.
AD797 is is very good too.
The nice folks at Burson were kind enough to send me a pair of their V5I-S hybrid opamps to try out. They seem to be a combo of a regular opamp and some pixy dust in a smaller more easily substituted size. I gave them a good listed today. Before the test I had some Sparkos labs discrete opamps in the I/V spot. I substituted in the Bursons and listened to the same song list. The Bursons are very nice and clearly bested the AD797, LME49710, and LT1363 opamps that I had on hand to try, of those regular opamps I liked the AD797 best. The Bursons were clear and on the warm side, nice detail, good soundstage, and good balance across the spectrum. Seemed to have less glare on piano than with regular opamps. I certainly could live with them and they are a worthy lower cost upgrade. However next to the Sparkos labs fully discrete some magic was lost. Flatter less holographic sound stage, not as liquid, and not as detailed across the board. The Sparkos are back in.
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The DAC plays all possible musical genres like nothing. It works like a crisp Swiss watch. I don't know how PCM63P-K plays but this Y version is top-notch. No bugs - chopping or anything weird. This PCB is perfect. I have never heard such a vivid sound coming out of headphones.The smile does not leave my face. 😍
Glad to hear your impression 🤩