Atom Feed - Twisted Pear Audio Support - Topic:miniDSP miniSHARC + 4x Opus DAC - 20Twisted Pear Audio Support - Atom Feedurn:twistedpearaudio-com:AtomFeed:TwistedPearAudioSupport:Topic:miniDSPminiSHARC+4xOpusDAC-20:1Copyright 2024 Twisted Pear Audio Support2024-03-29T05:05:28Zhttp://www.twistedpearaudio.com/forum/Images/YAFLogo.pngForum Adminhttp://www.twistedpearaudio.comfeedback@twistedpearaudio.commrciavehttp://www.twistedpearaudio.com/forum/profile/25960-mrciavemrciavehttp://www.twistedpearaudio.com/forum/profile/25960-mrciaveBrian Doneganhttp://www.twistedpearaudio.com/forum/profile/8-Brian-Doneganmrciavehttp://www.twistedpearaudio.com/forum/profile/25960-mrciavedariedel2http://www.twistedpearaudio.com/forum/profile/25601-dariedel2mrciavehttp://www.twistedpearaudio.com/forum/profile/25960-mrciaveYetAnotherForum.NETurn:twistedpearaudio-com:ftPosts:st1:meid24949:1miniDSP miniSHARC + 4x Opus DAC<table class="content postContainer_Alt" width="100%"><tr><td>Yes, stacking the DACs and the miniSHARC is facing them. So wires are around 5cm.</td></tr></table>2017-06-22T21:01:11-07:002017-06-22T21:01:11-07:00mrciave<table class="content postContainer_Alt" width="100%"><tr><td>Yes, stacking the DACs and the miniSHARC is facing them. So wires are around 5cm.</td></tr></table>urn:twistedpearaudio-com:ftPosts:st1:meid24947:1miniDSP miniSHARC + 4x Opus DAC<table class="content postContainer" width="100%"><tr><td>How long are your wires? I assume you are stacking the DACs.</td></tr></table>2017-06-22T20:05:51-07:002017-06-22T20:05:51-07:00Brian Donegan<table class="content postContainer" width="100%"><tr><td>How long are your wires? I assume you are stacking the DACs.</td></tr></table>urn:twistedpearaudio-com:ftPosts:st1:meid24946:1miniDSP miniSHARC + 4x Opus DAC<table class="content postContainer_Alt" width="100%"><tr><td>Thank you dariedel2. Tried both fanout (star) and daisy chain (miniSHARC to Opus 1, Opus 1 to Opus 2...). Both same, noise & no sound. I saw that thread, actually also found another one where daisy chain failed and fanout worked!</td></tr></table>2017-06-22T19:52:57-07:002017-06-22T19:52:57-07:00mrciave<table class="content postContainer_Alt" width="100%"><tr><td>Thank you dariedel2. Tried both fanout (star) and daisy chain (miniSHARC to Opus 1, Opus 1 to Opus 2...). Both same, noise & no sound. I saw that thread, actually also found another one where daisy chain failed and fanout worked!</td></tr></table>urn:twistedpearaudio-com:ftPosts:st1:meid24945:1miniDSP miniSHARC + 4x Opus DAC<table class="content postContainer" width="100%"><tr><td>I was originally going to try this with 3 Opus. I decided to go the Buffalo route. However, there is a thread on the MiniDSP site in the USBstreamer section where someone had success wiring the clocks one after the other in a single line instead of fanning them out. that might get you in the right direction.</td></tr></table>2017-06-22T17:30:53-07:002017-06-22T17:30:53-07:00dariedel2<table class="content postContainer" width="100%"><tr><td>I was originally going to try this with 3 Opus. I decided to go the Buffalo route. However, there is a thread on the MiniDSP site in the USBstreamer section where someone had success wiring the clocks one after the other in a single line instead of fanning them out. that might get you in the right direction.</td></tr></table>urn:twistedpearaudio-com:ftPosts:st1:meid24944:1miniDSP miniSHARC + 4x Opus DAC<table class="content postContainer_Alt" width="100%"><tr><td>OK, maybe an overkill project, but as per thread title. I'm trying to realize a LMS (Loudspeaker Management System) with a miniDSP miniSHARC and 4x Opus DACs (8ch total).<br /><br />Problem is, how to fan out the I2S lines to the 4 DACs.<br /><br />miniSHARC has the following pins:<br />MCLK<br />LRCLK<br />BCLK<br />I2S CH1&2<br />I2S CH3&4<br />I2S CH5&6<br />I2S CH7&8<br />GND<br /><br />Now, if I connect one Opus DAC I can get sound perfectly. But if I connect two (by fanning out MCLK, LRCLK and BCLK with Y cables) I get only noise. So, if with 2 I get no sound, I suppose with 3 and 4 will get only worse.<br /><br />Some quick internet search seems to say that fanning out in Y shape should be OK, but it's not. Somebody recommends fan out buffers, but there's no quick & clear way to do it, and my skills and knowledge are way not enough to design my own clock distributor circuit. Can't find anything ready, by the way.<br /><br />I suppose the obvious answer would be "Why not use a Buffalo 8ch?", but since I already own 3 Opus DACs, I'd like to be able to re-use them.<br /><br />Any suggestion? Or, could any of you guys at Twisted Pear design an easy-to-stack clock distributor to mate miniSHARC with 4x Opus DACs?<br /><br />Again, I understand the typical way is miniSHARC + Buffalo. But somehow I love the sound of my Opuses and would like to go down that route.</td></tr></table>2017-06-22T13:18:37-07:002017-06-22T13:18:37-07:00mrciave<table class="content postContainer_Alt" width="100%"><tr><td>OK, maybe an overkill project, but as per thread title. I'm trying to realize a LMS (Loudspeaker Management System) with a miniDSP miniSHARC and 4x Opus DACs (8ch total).<br /><br />Problem is, how to fan out the I2S lines to the 4 DACs.<br /><br />miniSHARC has the following pins:<br />MCLK<br />LRCLK<br />BCLK<br />I2S CH1&2<br />I2S CH3&4<br />I2S CH5&6<br />I2S CH7&8<br />GND<br /><br />Now, if I connect one Opus DAC I can get sound perfectly. But if I connect two (by fanning out MCLK, LRCLK and BCLK with Y cables) I get only noise. So, if with 2 I get no sound, I suppose with 3 and 4 will get only worse.<br /><br />Some quick internet search seems to say that fanning out in Y shape should be OK, but it's not. Somebody recommends fan out buffers, but there's no quick & clear way to do it, and my skills and knowledge are way not enough to design my own clock distributor circuit. Can't find anything ready, by the way.<br /><br />I suppose the obvious answer would be "Why not use a Buffalo 8ch?", but since I already own 3 Opus DACs, I'd like to be able to re-use them.<br /><br />Any suggestion? Or, could any of you guys at Twisted Pear design an easy-to-stack clock distributor to mate miniSHARC with 4x Opus DACs?<br /><br />Again, I understand the typical way is miniSHARC + Buffalo. But somehow I love the sound of my Opuses and would like to go down that route.</td></tr></table>