Happy new year everyone!
All the best! 🙂
As i didn't have any luck with my previous project (Vestax cdx 12) i decided to up-cycle the DAC of the Vestax.
Not that bad, not that good but i'll give a try.
BB PCM1710 used in several PC players and also in AN cd1.
As i'm gathering information about schematics im nearly at the end of the pcb.
It will be quite simple according to the two schematics describing all the necessary connections between CS8412/14 + PCM1710.
The only thing i will need some help is Pin 16 of Cs8412/14.
I'm thinking it will be great to have a sampling frequency indicator & error indicator (both in leds)
I've found a nice Cs8412 spdif indicator
In this case SEL (pin 16) is LOW so we can have error/frequency info selected according to datasheet.
I was wondering if with SEL in LOW we can enable de-emphasis also.. Seems not but a person with greater skills may know better.
Also how can we add the 96Khz sampling freq. in case we use the pin compatible 8414?
And the pcb so far..
Thank you all 🙂
All the best! 🙂
As i didn't have any luck with my previous project (Vestax cdx 12) i decided to up-cycle the DAC of the Vestax.
Not that bad, not that good but i'll give a try.
BB PCM1710 used in several PC players and also in AN cd1.
As i'm gathering information about schematics im nearly at the end of the pcb.
It will be quite simple according to the two schematics describing all the necessary connections between CS8412/14 + PCM1710.
The only thing i will need some help is Pin 16 of Cs8412/14.
I'm thinking it will be great to have a sampling frequency indicator & error indicator (both in leds)
I've found a nice Cs8412 spdif indicator
In this case SEL (pin 16) is LOW so we can have error/frequency info selected according to datasheet.
I was wondering if with SEL in LOW we can enable de-emphasis also.. Seems not but a person with greater skills may know better.
Also how can we add the 96Khz sampling freq. in case we use the pin compatible 8414?
And the pcb so far..
Thank you all 🙂
Attachments
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Hi,
Quick question about Delta sigma pcm1716 (similar with pcm1710).
In Thule spirit 150 they use 2 dacs (one for each channel I guess) although the Dac ic has L & R outputs.
What is the propose of this kind of implementation against single ic usage?
Thank you very much!
Quick question about Delta sigma pcm1716 (similar with pcm1710).
In Thule spirit 150 they use 2 dacs (one for each channel I guess) although the Dac ic has L & R outputs.
What is the propose of this kind of implementation against single ic usage?
Thank you very much!
Attachments
Hi all 😁
Quick question about 5 volt power supply for digital & analog input in CS8412 & PCM1710U, before starting to draw the pcb..
What do you think about this configuration of LM317 & TL431 ?
Quick question about 5 volt power supply for digital & analog input in CS8412 & PCM1710U, before starting to draw the pcb..
What do you think about this configuration of LM317 & TL431 ?
PCM1710 was in the first DAC I built that I found to be truly disappointing. After all the TDA splendour and PCM58, PCM63 etc. pretty much always being succesful projects the PCM1710 turned out to be jitter sensitive and noisy. I think this was most worse with YM3623B (the worst SPDIF receiver in history) with a kind of noise over music experience. I would consider using a known good low jitter SPDIF receiver like WM8804, a known good more recent DAC chip just as known good ultra low noise regulators.
ES9023 is already way better. If you want a simple setup that is.
ES9023 is already way better. If you want a simple setup that is.
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