[Arm-netbook] Multi-channel audio support

lkcl luke luke.leighton at gmail.com
Sat Dec 31 20:44:25 GMT 2011


On Sat, Dec 31, 2011 at 8:32 PM, jonsmirl at gmail.com <jonsmirl at gmail.com> wrote:
> On Sat, Dec 31, 2011 at 3:26 PM, Bari Ari <bari at onelabs.com> wrote:
>> On 12/31/2011 01:28 PM, lkcl luke wrote:
>>>   i knowww... it's not difficult, for an experienced engineer.  *sigh*
>>> we haven't heard from the factory in a while, after they said they
>>> were happy to proceed after finishing the current project for their
>>> client.
>>>
>>>
>> The trickiest parts are matching the pcb trace lengths for the DDR3 and
>> any clock lines used for time of flight (delay line) that are fed back
>> to the clock synthesizer.
>>
>> The rest is just proper board stack ups, trace widths, vias types and
>> placement etc for some control over impedance, clock and power distribution.
>>
>> The low cost and GPL pcb tools don't have much to help the designer. The
>> high end pcb tools give you micron accuracy.
>>
>> So if there is anyway I can help keep things moving along...... don't
>> hesitate to ask.
>
> If you do an open design in something Orcad can read I'll have our
> layout guys look at it. Maybe we can share core parts of the layout.

 that'd be really helpful jon.

 hm.  ok.

 so, tomorrow, i grab the pins out of the datasheet, put them into
KiCAD, would that do?

 l.



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