You want to produce CD quality music or just a buzz ? If you want just make a buzz, you can use a simple oscillator + amplifier enabled/disabled by a GPIO of the net4526.
2007/11/13, Jeff Ramin <[EMAIL PROTECTED]>: > > This board would go into a product that we sell, and we > tell customers they need to use 802.3af switches. > > So, the ALIX board would not work in this scenario. It > would require a POE splitter at the board. > > > Manuel Requena wrote: > > And you know what switching device will provide the PoE connection? And the > > maximum power it will > > provide? > > > > As I know, Cisco switches have modules that provides 7W and 15W. > > > > http://en.wikipedia.org/wiki/Power_over_Ethernet > > "Clause 33 of IEEE 802.3-2005 (commonly referred to as IEEE 802.3af) > > provides 48 volts DC over two > > of the four available pairs on a Cat. 3/Cat. 5 cable with a maximum current > > of 400 mA for a maximum > > load power of 15.4 W." > > > > > >> -----Mensaje original----- > >> De: [EMAIL PROTECTED] > >> [mailto:[EMAIL PROTECTED] nombre de Jeff Ramin > >> Enviado el: lunes, 12 de noviembre de 2007 22:21 > >> Para: Paul Bartell > >> CC: [email protected] > >> Asunto: Re: [Soekris] net4526 & a speaker > >> > >> > >> I was actually looking at the ALIX products, but they don't > >> have any POE boards, which is a requirement for my project. > >> > >> Thanks. > >> > >> > >> Paul Bartell wrote: > >>> I think the easiest to find would be a usb sound card, but in all > >>> seriousness, why a net4526. I think a mini-itx board would make a lot > >>> more sence. not to mention, probably cheaper. specifically pcengines > >>> ALIX would make more sence, as it has pretty much the same if not better > >>> specs and an intergrated sound card. > >>> > >>> On Nov 12, 2007 11:17 AM, Jeff Ramin <[EMAIL PROTECTED] > >>> <mailto:[EMAIL PROTECTED]>> wrote: > >>> > >>> > >>> Hi folks. > >>> > >>> One of the things I need to do with the net4526 is drive an > >>> 8 ohm speaker. I actually need about 12 watts of power, but > >>> I realize I won't be able to get that much from this board. > >>> For testing purposes, I'm willing to work with less power. > >>> > >>> Anyway - does anybody have a suggestion as to which interface > >>> I should use? I think my choices are getting a mini-PCI sound > >>> card, or using the USB interface. What are the pros and cons? > >>> > >>> Is anybody else using one of these cards for an audio application? > >>> > >>> Thanks. > >>> > >>> > >>> -- > >>> Jeffrey Ramin > >>> CDW Berbee > >>> [EMAIL PROTECTED] <mailto:[EMAIL PROTECTED]> > >>> 608.298.1024 > >>> _______________________________________________ > >>> Soekris-tech mailing list > >>> [email protected] <mailto:[email protected]> > >>> http://lists.soekris.com/mailman/listinfo/soekris-tech > >>> > >>> > >>> > >>> > >>> -- > >>> "If you are savvy and smart about the choices you make in life, The sky > >>> is not the limit!" > >>> Mark Shuttleworth > >>> > >>> Random quote of the week/month/whenever i get to updating it: "This is > >>> an incline plane. You roll stuff down it." Or is it one of those > >>> "incline planes have been used throughout the millenia, from the > >>> Egyptian pyramids to this stupid science class" videos?" > >>> - Jasmine Lee > >> -- > >> Jeffrey Ramin > >> CDW Berbee > >> [EMAIL PROTECTED] > >> 608.298.1024 > >> _______________________________________________ > >> Soekris-tech mailing list > >> [email protected] > >> http://lists.soekris.com/mailman/listinfo/soekris-tech > >> > > -- > Jeffrey Ramin > CDW Berbee > [EMAIL PROTECTED] > 608.298.1024 > _______________________________________________ > Soekris-tech mailing list > [email protected] > http://lists.soekris.com/mailman/listinfo/soekris-tech > _______________________________________________ Soekris-tech mailing list [email protected] http://lists.soekris.com/mailman/listinfo/soekris-tech
