SPDIF to AES/EBU
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From: Dirk Bruere at NeoPax on 2 Mar 2010 16:49 Looking for a reliable circuit for the level conversion from SPDIF to TTL. I then intend to feed it to an RS485 driver and into a transformer for transmission via CAT5e -- Dirk http://www.transcendence.me.uk/ - Transcendence UK http://www.theconsensus.org/ - A UK political party http://www.blogtalkradio.com/onetribe - Occult Talk Show
From: JosephKK on 5 Mar 2010 11:00 On Tue, 02 Mar 2010 21:49:38 +0000, Dirk Bruere at NeoPax <dirk.bruere(a)gmail.com> wrote: >Looking for a reliable circuit for the level conversion from SPDIF to >TTL. I then intend to feed it to an RS485 driver and into a transformer >for transmission via CAT5e I figure all that needs done is to put it through a transformer to adjust for native impedance and use Cat5e.
From: Jim Thompson on 5 Mar 2010 11:12 On Fri, 05 Mar 2010 08:00:13 -0800, "JosephKK"<quiettechblue(a)yahoo.com> wrote: >On Tue, 02 Mar 2010 21:49:38 +0000, Dirk Bruere at NeoPax <dirk.bruere(a)gmail.com> wrote: > >>Looking for a reliable circuit for the level conversion from SPDIF to >>TTL. I then intend to feed it to an RS485 driver and into a transformer >>for transmission via CAT5e > >I figure all that needs done is to put it through a transformer to adjust >for native impedance and use Cat5e. Perhaps...? http://www.beis.de/Elektronik/ADDA2496/SPDIF-Converter.html LVDS receivers might also work. ...Jim Thompson -- | James E.Thompson, CTO | mens | | Analog Innovations, Inc. | et | | Analog/Mixed-Signal ASIC's and Discrete Systems | manus | | Phoenix, Arizona 85048 Skype: Contacts Only | | | Voice:(480)460-2350 Fax: Available upon request | Brass Rat | | E-mail Icon at http://www.analog-innovations.com | 1962 | The only thing bipartisan in this country is hypocrisy
From: Dirk Bruere at NeoPax on 5 Mar 2010 12:05 On 05/03/2010 16:00, JosephKK wrote: > On Tue, 02 Mar 2010 21:49:38 +0000, Dirk Bruere at NeoPax<dirk.bruere(a)gmail.com> wrote: > >> Looking for a reliable circuit for the level conversion from SPDIF to >> TTL. I then intend to feed it to an RS485 driver and into a transformer >> for transmission via CAT5e > > I figure all that needs done is to put it through a transformer to adjust > for native impedance and use Cat5e. True, but I need to fan out. Getting TTL (ish) enough to drive a 485 chip from a 0.6V SPDIF signal? Analog comparator? -- Dirk http://www.transcendence.me.uk/ - Transcendence UK http://www.theconsensus.org/ - A UK political party http://www.blogtalkradio.com/onetribe - Occult Talk Show
From: Dirk Bruere at NeoPax on 5 Mar 2010 12:14
On 05/03/2010 16:12, Jim Thompson wrote: > On Fri, 05 Mar 2010 08:00:13 -0800, > "JosephKK"<quiettechblue(a)yahoo.com> wrote: > >> On Tue, 02 Mar 2010 21:49:38 +0000, Dirk Bruere at NeoPax<dirk.bruere(a)gmail.com> wrote: >> >>> Looking for a reliable circuit for the level conversion from SPDIF to >>> TTL. I then intend to feed it to an RS485 driver and into a transformer >>> for transmission via CAT5e >> >> I figure all that needs done is to put it through a transformer to adjust >> for native impedance and use Cat5e. > > Perhaps...? > > http://www.beis.de/Elektronik/ADDA2496/SPDIF-Converter.html > > LVDS receivers might also work. Thanks - a slightly different approach to the one I was thinking about. The SPDIF input goes into a 485 differential receiver. You think that would work reliably given the low SPDIF voltage? If so, I could just do a 485 diff i/p straight through to a 485 diff o/p feeding 3 xformers (I need a 1 to 3 fanout, isolated) -- Dirk http://www.transcendence.me.uk/ - Transcendence UK http://www.theconsensus.org/ - A UK political party http://www.blogtalkradio.com/onetribe - Occult Talk Show |