@jpk73 Nice, thank you for testing thisWe can expect a nice PCB with stop clock 🥳
Maybe we can make the extra pulses disappear...? Here is a version for 24bit, it uses less ICs, and here is a universal circuit which can be configured for every possible combination!
Miro, if there are future Gerber releases, do you mind offering soic8 footprints again?
I would be interested in building more boards around the JL Sounds USB board and whatever new kind of stopped clock schemes we are looking at, but I don't think I'm a big op amp roller - probably would be fine soldering and leaving it there
I would be interested in building more boards around the JL Sounds USB board and whatever new kind of stopped clock schemes we are looking at, but I don't think I'm a big op amp roller - probably would be fine soldering and leaving it there
Very clever. Thanks for the link!
And Mr Vunce, I do not hear any noise through this unit while paused but I'm always interested in doing things better and learning
Сколько бит нужно подавать для стандартной схемы Миро?Может, удастся заставить исчезнуть лишние импульсы ...? Вот версия для 24 бит , в ней используется меньше микросхем, а вот универсальная схема, которую можно настроить для всех методов комбинаций!
damit, an interface problem due to the new site software, lol ! I had to erase a babylonian cuneiform post ! Too bad... maybe the Matrix Resurection ?
Edit : in ancient babylonian cuneiform, it means : "what sort of film caps are used in your power supply ?"
Edit : in ancient babylonian cuneiform, it means : "what sort of film caps are used in your power supply ?"
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Can opamps be “rolled “ in a modular way? Make the opamp easy to remove to install another? Probably been asked or done before?
Looks like many opamps are only available as smd.
thanks
Looks like many opamps are only available as smd.
thanks
Please,Thanks for all the messages.
Yes, the resistors R10 & R11 are there.
Mu opamp: LM6171BIN/NOPB
I am waiting for adapters to check other 2 opamps I have.
I Will ask the vendor of the board for some guidelines and report back next week when back at the workbench.
Have a good one.
What adapters specifically did you use?
Thanks
Iggy,
Looked foreign to me. But my kids are teaching me well,LOL!
@intojazz,
Search for SOIC to DIP adapters such as these. Be sure to use machined pins so they fit into the DIP8 socket soldered to the DAC board.
https://www.sparkfun.com/products/13655#
Looked foreign to me. But my kids are teaching me well,LOL!
@intojazz,
Search for SOIC to DIP adapters such as these. Be sure to use machined pins so they fit into the DIP8 socket soldered to the DAC board.
https://www.sparkfun.com/products/13655#
Psu2?I have 4x PCBs left of the DAC board, if anybody wants one?
I’d sure like one if still available
Thanks
The shift registers are there to split the data into left and right streams for each AD1862. But some sources can output left and right data already - for example the JLsounds board. So you can leave the shift registers unpopulated, and use the data l and r from JLSounds instead. You can also use a scope to see that you have data going to each ship using those points.@miro1360:
Thank you.
I tested it by connecting the raspberry pi and i2s instead of the pc and installing moOde. I installed moOde and changed the settings to output in 24bit/48khz.
After re-soldering and playing music, the left channel plays normally. This is a sound I like very much.
There is no sound in the right channel. I suspect 74ahct164d on the right channel, but I would like to proceed with troubleshooting for more accurate diagnosis.
I think I could check something with the points marked DL and RL on the board using oscilloscope. I would like to know what this point is used for.
View attachment 1007962
Thank you in advance.
Sparkfun looks like a good site. I’ll get some of the adapters and their headers. Not sure if the pins are machined , description doesn’t sayIggy,
Looked foreign to me. But my kids are teaching me well,LOL!
@intojazz,
Search for SOIC to DIP adapters such as these. Be sure to use machined pins so they fit into the DIP8 socket soldered to the DAC board.
https://www.sparkfun.com/products/13655#
Thanks Vunce
Iggy,
Looked foreign to me. But my kids are teaching me well,LOL!
@intojazz,
Search for SOIC to DIP adapters such as these. Be sure to use machined pins so they fit into the DIP8 socket soldered to the DAC board.
https://www.sparkfun.com/products/13655#[/URL
@miro1360:
Thank you.
I tested it by connecting the raspberry pi and i2s instead of the pc and installing moOde. I installed moOde and changed the settings to output in 24bit/48khz.
After re-soldering and playing music, the left channel plays normally. This is a sound I like very much.
There is no sound in the right channel. I suspect 74ahct164d on the right channel, but I would like to proceed with troubleshooting for more accurate diagnosis.
I think I could check something with the points marked DL and RL on the board using oscilloscope. I would like to know what this point is used for.
Thank you in advance.
DL and DR pins are for USB/I2S device which does output 20-bit PCM format (jlsounds) (shift registers are not used in this case). There should be DATA present in both pins during music playing, you can check with oscilloscope.
There circuits does not support the Stop-Clock 😢Maybe we can make the extra pulses disappear...? Here is a version for 24bit, it uses less ICs, and here is a universal circuit which can be configured for every possible combination!
I know, but I meant the aligning stage ("glue logic") which handles delay and buffer for various bit depths... Maybe just this stage needs modification? Should be possible to verify with your existing simulation...There circuits does not support the Stop-Clock 😢
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@Traktorist3d
Could I deduce we use mmbt3904 and 3906 for your dual psu q1 and q2 and q1" q2"?
Thankyou
Could I deduce we use mmbt3904 and 3906 for your dual psu q1 and q2 and q1" q2"?
Thankyou
Thank you.DL and DR pins are for USB/I2S device which does output 20-bit PCM format (jlsounds) (shift registers are not used in this case). There should be DATA present in both pins during music playing, you can check with oscilloscope.
I used 74AHCT164D (faster) instead of 74HCT164D , is there any problem?
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