Yes, you can use isolator circuits with separated galvanicaly isolated power supplies(one side 5v other 3.3) but without reclocking they will introduce jitter...there are whole threads about this subject.
5V TTL inputs are compatible with 3.3v CMOS outputs. If the manual is correct, and the inputs are 5V TTL compatible.
Might me some sort of signal integrity issue (long cables, wrong source termination resistors, wrong wiring, untidy connection of cable to Amanero's PCB). Yes, "tidy" thing plays a role here, as well as "small" and "direct".
What impedance the i2s inputs and the "mouse/keyboard" cable/connectors have?
Might me some sort of signal integrity issue (long cables, wrong source termination resistors, wrong wiring, untidy connection of cable to Amanero's PCB). Yes, "tidy" thing plays a role here, as well as "small" and "direct".
What impedance the i2s inputs and the "mouse/keyboard" cable/connectors have?
I'm trying to run sync with 90/98 clocks on the Acko SO3 board into Amanero/BuffIIISE. Seems like a firmware problem. Can flash CPLD (slave2224) and then can flash CPU (1080), with both of those operations indicating "Done" but cannot seem to get anywhere with the configuration bits, because, I'm guessing, when I try to flash after choosing the config bits, I get, invariably, without fail, the message "Audio Device Not Found!" and I get no effect from the bits choices. Has anyone encountered this before? I've searched here and in the Acko GB thread, and posted in the latter, but no luck. Again, TIA - Pat
Are you following the readme.pdf (included in the driver zip) ?
The "unplug and wait" instructions are important.
The "unplug and wait" instructions are important.
Thanks for the input guys.
The Amanero works fine with my Discreet Monica dac, i.e. excellent!
As I had the Stello DA100 anyway I thought I might try the Amanero with this dac too. So I used the exact same cat. 5 wires that works with the Monica and about the same length, very short. The Stello uses a hard to get PS2 connector. I used the only one I was able to get hold of. I have no idea of the impedance of the connector. Maybe I should try to solder the Amanero directly to the I2S input of the Stello and bypass the PS2 connector?
Hi Dean -
Did read the readme, but didn't fully grasp the significance of the distinction between the two drivers involved. As I pointed out in the Acko thread, I was able to flash the config bits.
Bottom line, however, is that with what appear to be the correct bits and CPLD for the sync and async schemes, sync doesn't work for anything but 44.1, async works at any native rate, but not when upsampled to 352 or 384. Not working means I do get lock, but the faint music in the background is overlaid with a high-frequency whistling/hash. Bummer. Thanks - Pat
I don't see members joining the group buy anymore. Is the group buy still open? Some clarity would be helpful.
Why don't you try your chance as put your name in GB and PM amanero and wait for what comes around. It seems like some people are getting their boards. Also there would be FS for amanero in swap meet section from time to time, I remember there was one a few times ago. But just put your name and take your chance.
As suggested, I had added my name. I was actually hesitant because there is a column in the Excel sheet for putting in the payment details whereas I don't know if the group buy is still on. I have also sent a PM to Domenico but haven't got a reply.
Do you know which chips between Combo384 and WM8741?
Many thanks.
http://www.diymania.net/data/cheditor5/1310/232ecb1694b4f1dbb23c99cb8d24f4c2_jZNGnjkWy.jpg
Many thanks.
http://www.diymania.net/data/cheditor5/1310/232ecb1694b4f1dbb23c99cb8d24f4c2_jZNGnjkWy.jpg
the audio data is clock in to the dac during the rising edge/falling edge, if the data signal rising edge is the same as the clock, there should be a chance of wrong data clock in.
Thanks for your sound.
Then how to implement this connection between Combo384 DSD signal output to WM8741.
WM8741 is forced H/W mode, so under asynchronous USB, how to
Combo384 is working asynchronous mode, so that, have better method to auto select when PCM or DSD source playing?
Then how to implement this connection between Combo384 DSD signal output to WM8741.
WM8741 is forced H/W mode, so under asynchronous USB, how to
Combo384 is working asynchronous mode, so that, have better method to auto select when PCM or DSD source playing?
Maybe SN74LVC157A is Your friend, try that switch, control signal is from DSDOE pin (in Amanero).
WM8741 uses different input pins for PCM and DSD and works only in DSD64 mode.
WM8741 uses different input pins for PCM and DSD and works only in DSD64 mode.
Yes, I am test it with 74lvc157. It is not work with DSD mode, because there is missing DSDCLK input.
Weird.
For example, inside Yamaha DVD-S2700 this switch works very well (4x), as in many others. Look in service manual how they used it.
Even with two or three relays You can make switching between formats, some HF Takamisawa or Omron is suitable.
For example, inside Yamaha DVD-S2700 this switch works very well (4x), as in many others. Look in service manual how they used it.
Even with two or three relays You can make switching between formats, some HF Takamisawa or Omron is suitable.
