If you do that, configure it for TTL output and attach it to D1. That wil bypass the comparitor, since you have on the single S/PDIF level converter. You would also need to select I2S input to activate D1.
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Configure it for TTL? I thought it was allready with the delivered resistors?
I am very sorry I have confused the VDD 1,2 V and the VDD xo 3,3 tridents. Something must be destroyed.
So do I. I am a ******* idiot. I burned another one with oscillating Belleson mini. I have to ask a friend if he can replace the 9018
BIIIse dual mono input selection
Hi,
here are a few questions hooking up input sources to dual mono build BIIIse.
I would like to connect 3 Spdif and one I2S (via teleporter) sources to a dual mono BIIIse build.
I have two options:
1: use the teleporter with equal length (short) cable to the I2S inputs of the two BIIIse and a 4:1 Mux/Demux to Spdif inputs on both BIIIse
2. use the teleporter I2S and the 4:1 Mux/Receiver set to I2S into OTTO II and output from OTTO II to both BIIISE with equal length cable.
Which way is preferable?
If using the 4:1 Mux/Demux:
How to connect to both BIIIse boards? There is no info into integration guide (or I did not find it).
Is here a problem with the 75Ω termination if ego to both BIIse boards (and if: is there a solution)
For the BII with dual mono there was a hint in the integration guide :
SPDIF and dual mono
When using SPDIF with a dual mono setup do not run parallel input wires to both DAC boards. The termination would no longer be 75Ω, as both boards have a 75Ω termination resistor on-board.
Instead of sending it to two boards (going direct into SPDIF on both DACs) feed the SPDIF into one of the DACs as you normally would do with the SPDIF switch closed (ON) as usual. Then wire from GND and D1 on that DAC to GND and D1 on the second DAC and keep the SPDIF switch open (OFF) on the second DAC.
Is there a explanation how to use the 4:1 Mux/Demus with a micro controller (as there is for the Otto II)
Last question: should i use some sort of isolation (ie. Adum 1250 isolator chip) on the micro controller lines (Arduino) to the modules mux and Otto II if I power these from the Placids Hd that power the BIIIse
Sorry for that much of questions at one time.
thx
Branko
PS: posted this also to TP Forums cause I do not know where it belongs?
Hi,
here are a few questions hooking up input sources to dual mono build BIIIse.
I would like to connect 3 Spdif and one I2S (via teleporter) sources to a dual mono BIIIse build.
I have two options:
1: use the teleporter with equal length (short) cable to the I2S inputs of the two BIIIse and a 4:1 Mux/Demux to Spdif inputs on both BIIIse
2. use the teleporter I2S and the 4:1 Mux/Receiver set to I2S into OTTO II and output from OTTO II to both BIIISE with equal length cable.
Which way is preferable?
If using the 4:1 Mux/Demux:
How to connect to both BIIIse boards? There is no info into integration guide (or I did not find it).
Is here a problem with the 75Ω termination if ego to both BIIse boards (and if: is there a solution)
For the BII with dual mono there was a hint in the integration guide :
SPDIF and dual mono
When using SPDIF with a dual mono setup do not run parallel input wires to both DAC boards. The termination would no longer be 75Ω, as both boards have a 75Ω termination resistor on-board.
Instead of sending it to two boards (going direct into SPDIF on both DACs) feed the SPDIF into one of the DACs as you normally would do with the SPDIF switch closed (ON) as usual. Then wire from GND and D1 on that DAC to GND and D1 on the second DAC and keep the SPDIF switch open (OFF) on the second DAC.
Is there a explanation how to use the 4:1 Mux/Demus with a micro controller (as there is for the Otto II)
Last question: should i use some sort of isolation (ie. Adum 1250 isolator chip) on the micro controller lines (Arduino) to the modules mux and Otto II if I power these from the Placids Hd that power the BIIIse
Sorry for that much of questions at one time.
thx
Branko
PS: posted this also to TP Forums cause I do not know where it belongs?
If happened to power the 1,2v VDD left/right with 3,3v or more, then the chip it should survive. I did it so... I have applied 3,6v to VddL/R. After powering the chip in right way it worked well. I do not know if it may be this as usually, or if the VddL/R it may be 4v tolerant, but in my case nothing was destroyed.
Definitely not to be tried, to confirm this statement...
If it was about another power rails, then I have not "practical" data about. However, try to power again the chip in right way, before replace it. It may happen to work...
Erlend...
Put multimeter in diode test position. Put all reg out...measure resistance across 3,3V and gnd and 1,2V and gnd. I also once damaged es9018 with overvoltage 1,2V line. After measurement 1.2V to gnd it was i think 10ohm resistance ...it must be 200ohm and higher. 1,2V regulator was immediately hot ... dac was locked and output sound was present...till because of overheating the regulator lt1963 was damaged.
Where have you buy es9018 ic?
It is not hard to solder it. Cut all es9018 pins with scalpell. Not desolder it because you will overheat and damaged pins and pcb.
I hope that your dac IC is not dead:
Put multimeter in diode test position. Put all reg out...measure resistance across 3,3V and gnd and 1,2V and gnd. I also once damaged es9018 with overvoltage 1,2V line. After measurement 1.2V to gnd it was i think 10ohm resistance ...it must be 200ohm and higher. 1,2V regulator was immediately hot ... dac was locked and output sound was present...till because of overheating the regulator lt1963 was damaged.
Where have you buy es9018 ic?
It is not hard to solder it. Cut all es9018 pins with scalpell. Not desolder it because you will overheat and damaged pins and pcb.
I hope that your dac IC is not dead:
lost ic 3, ic 4, ic5,
Hi,
by trying to desolder the srewterminals of my BIIIse the small ic 3, ic 4 and ic 5 came off.
does anybody know what part this is? must be analog switches.
it reads 87BA or 878A (can't read) SOT-363 type IC.
regards
Hi,
by trying to desolder the srewterminals of my BIIIse the small ic 3, ic 4 and ic 5 came off.
does anybody know what part this is? must be analog switches.
it reads 87BA or 878A (can't read) SOT-363 type IC.
regards
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Thank you !!!
Got it fixed today 🙂)
Branko
BTW: Is there any place to daonload the BII Firmware?
Got it fixed today 🙂)
Branko
BTW: Is there any place to daonload the BII Firmware?
A new batch of Buffalo-IIIse boards should be arriving soon and I will begin building them right away.
I just opened up pre-orders and will begin shipping on or before March 21st.
I just opened up pre-orders and will begin shipping on or before March 21st.
Done. I'm happy to have a date for completing my build now.
I am not 100% sure if I need something else (a Legato for example), will it be possible to add something within the next two weeks?
I am not 100% sure if I need something else (a Legato for example), will it be possible to add something within the next two weeks?
I have open-sourced a new version of the B3SE firmware. This firmware makes it far easier to run in sync mode as it does not depend on the DAC being addressable at start up (because of a lack of master clock) - in fact you can apply the master clock any time you like.
I would welcome feedback and pull requests from early testers before we offer firmware on the site.
Those writing your own firmware may find it a great place to start.
https://github.com/russwyte/Buffalo-3SE-on-board-firmware
I would welcome feedback and pull requests from early testers before we offer firmware on the site.
Those writing your own firmware may find it a great place to start.
https://github.com/russwyte/Buffalo-3SE-on-board-firmware
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