What a nice idea and a wonderful soldering skill for using an U FL connector!
By the way, Acko designed an adaptor board for U FL connectors though it is not distributed yet.
http://www.diyaudio.com/forums/digital-line-level/147817-ackodac-based-es9018-71.html#post3357999
By the way, Acko designed an adaptor board for U FL connectors though it is not distributed yet.
http://www.diyaudio.com/forums/digital-line-level/147817-ackodac-based-es9018-71.html#post3357999
Remote Control
I am VERY interested in a remote control kit! The Apple remote control is an ideal partner
Meanwhile, would you care to show your remote control setup (ohoto)?
/S
I am VERY interested in a remote control kit! The Apple remote control is an ideal partner
Meanwhile, would you care to show your remote control setup (ohoto)?
/S
Try the Salas regulator. There are groupb buys going on on this forum.
Or try the Twisted Pear super shunt regulator.
Or try the Twisted Pear super shunt regulator.
I use a simplified version of the Salas regulator fom my SD Trans.
Here you can find the PCB:
http://www.diyaudio.com/forums/swap-meet/204709-fs-pcbs-opamps-3.html
This is high current version but you can modify the ccs current changing the resistor.
Ciao
Guglielmo
Here you can find the PCB:
http://www.diyaudio.com/forums/swap-meet/204709-fs-pcbs-opamps-3.html
This is high current version but you can modify the ccs current changing the resistor.
Ciao
Guglielmo
I am VERY interested in a remote control kit! The Apple remote control is an ideal partner
Meanwhile, would you care to show your remote control setup (ohoto)? ...
I'm ssory that I can't show any pictures as of now because I had sold my units to my friend and I have none at my hand now.
I will post a picture of new one in the near future.
Bunpei
Very interesting!
Where did you install the PPS caps? On SDtrans384? What value(s).
Do you have a photo?
What happened to the I2S?
/S
Where did you install the PPS caps? On SDtrans384? What value(s).
Do you have a photo?
What happened to the I2S?
/S
Chiaki's SDTrans-Sync-9018D DAC + I/V system
I'd like to introduce Chiaki's combo, SDTrans-Sync-9018D DAC + I/V system
As I briefly reported before, Chiaki prototyped his own ES9018 Dual Mono DAC board designed in a closely-coupled way with SDTrans.
http://www.chiaki.cc/Transport/images/sdtrans-sync-tower1.jpg
He added his own I/V module for the DAC recently. I had a chance to listen to them in my environment preparing necessary power supplies.
His DAC board has the following features;
1. ES9018 dual mono configuration for stereo
2. I2S/DSD (LVDS differential) input by way of PS-Audio type HDMI connector & Cable
3. On board Crystek oscillators 45.1584/49.152 MHz
The clock signal is sent back to SDTrans via the HDMI cable
4. Synchronous master clocking scheme for ES9018
5. Complete isolation of interfaces between SDTrans and DAC
SDTrans -> DAC: I2S/DSD, I2C
DAC -> SDTrans: Master clock
6. SDTrans selects a frequency of Crystek oscillator based on a source fs.
Selection command is sent by way of I2C.
7. SDTrans performs adequate register settings for ES9018
8. Muting control from SDTrans side
No click, no pop noises between tracks of any type of sources
9. Five separate power supply input terminals for Clock, Digital-Left, Digital-Right, Analog-Left, Analog-Right sections.
Ground planes are separated in a well-considered manner.
Instead of using on board regulators, an optional external highly-regulated power input can be acceptable.
I'd like to introduce Chiaki's combo, SDTrans-Sync-9018D DAC + I/V system
As I briefly reported before, Chiaki prototyped his own ES9018 Dual Mono DAC board designed in a closely-coupled way with SDTrans.
http://www.chiaki.cc/Transport/images/sdtrans-sync-tower1.jpg
He added his own I/V module for the DAC recently. I had a chance to listen to them in my environment preparing necessary power supplies.
His DAC board has the following features;
1. ES9018 dual mono configuration for stereo
2. I2S/DSD (LVDS differential) input by way of PS-Audio type HDMI connector & Cable
3. On board Crystek oscillators 45.1584/49.152 MHz
The clock signal is sent back to SDTrans via the HDMI cable
4. Synchronous master clocking scheme for ES9018
5. Complete isolation of interfaces between SDTrans and DAC
SDTrans -> DAC: I2S/DSD, I2C
DAC -> SDTrans: Master clock
6. SDTrans selects a frequency of Crystek oscillator based on a source fs.
Selection command is sent by way of I2C.
7. SDTrans performs adequate register settings for ES9018
8. Muting control from SDTrans side
No click, no pop noises between tracks of any type of sources
9. Five separate power supply input terminals for Clock, Digital-Left, Digital-Right, Analog-Left, Analog-Right sections.
Ground planes are separated in a well-considered manner.
Instead of using on board regulators, an optional external highly-regulated power input can be acceptable.
Attachments
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His I/V board has the following features;
1. Based-on a standard schematic shown in ESS ES9018 Evaluation Board
Its purpose is shown a kind of reference to users
2. Stackable on his DAC board
3. Unbalanced and balanced output
4. Separated power input terminals for Left and Right (DC +-15V)
5. Muting mechanism controlled from DAC side
The first picture shows the I/V board stacked on the DAC board from a top view. The second shows the DAC and the stacked I/V board from a side view.
1. Based-on a standard schematic shown in ESS ES9018 Evaluation Board
Its purpose is shown a kind of reference to users
2. Stackable on his DAC board
3. Unbalanced and balanced output
4. Separated power input terminals for Left and Right (DC +-15V)
5. Muting mechanism controlled from DAC side
The first picture shows the I/V board stacked on the DAC board from a top view. The second shows the DAC and the stacked I/V board from a side view.
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Bunpei's impression for the DAC and I/V board;
1. The system can reproduce very abundant information originally captured in a source when you supply commensurate DC powers with the DAC.
(In other words, the system reflects the quality of power supplies in a very sensitive manner. When we make significant efforts, we will be rewarded enough.)
2. Every SDTrans384 Version 3.0 users has a wonderful opportunity to enjoy a music by obtaining this DAC or DAC + I/V.
1. The system can reproduce very abundant information originally captured in a source when you supply commensurate DC powers with the DAC.
(In other words, the system reflects the quality of power supplies in a very sensitive manner. When we make significant efforts, we will be rewarded enough.)
2. Every SDTrans384 Version 3.0 users has a wonderful opportunity to enjoy a music by obtaining this DAC or DAC + I/V.
Photos of Bunpei's power supplies are shown below for your reference.
(The I/V board in the first picture was Chiaki's first prototype. It is not identical to the second prototype board in shown in the previous post.)
(The I/V board in the first picture was Chiaki's first prototype. It is not identical to the second prototype board in shown in the previous post.)
Attachments
Chaiki's sd/dac
That's a crazy setup! I'm sure it is very clean and relaxing to listen to. I added the ti tps7a4700 evm regulator to my sd player. It really helps to hear the music with much more micro detail. I used a tpa lcdps before the ti reg. Sounds better than the tpa placid on its own. Very happy with the sound this sd player creates. Made my system step up big time.
Staccatiss- I think its post 304, pg 31 that has the info on the cap placement. The I2s issue was solved with the other half of the lcdps powering the tpa teleporter, at least so far no issues. Good power supplies make all the difference!
That's a crazy setup! I'm sure it is very clean and relaxing to listen to. I added the ti tps7a4700 evm regulator to my sd player. It really helps to hear the music with much more micro detail. I used a tpa lcdps before the ti reg. Sounds better than the tpa placid on its own.
Very happy with the sound this sd player creates. Made my system step up big time. Staccatiss- I think its post 304, pg 31 that has the info on the cap placement. The I2s issue was solved with the other half of the lcdps powering the tpa teleporter, at least so far no issues. Good power supplies make all the difference!
Attachments
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I think that was the PPS cap recommendations for ver 2 of SDTRANS. Did you put PPS caps on the same power supplies in version 3?
