[sdiy] cs4344 DAC output stage

[jays at aracnet.com]

Julian,

Here is a link to the Cirrus demo board, take a look:

http://www.cirrus.com/en/pubs/rdDatasheet/CDB4344-EB.pdf

Looks like the DAC is happy with just a passive filter. But if you need
some more amplitude then yes use an amp on the output. A straight
inverting amp would work well. But remember if the polarity is important
invert the data before it goes to the DAC.

Jay


On Thu, 13 Sep 2012 18:49:29 +0200, julian schmidt <elfenjunge at gmx.net>
wrote:
> Am 13.09.2012 18:12, schrieb thx1138:
>> On 9/13/12 8:30 AM, "julian schmidt" <elfenjunge at gmx.net> wrote:
>>
>>> Hello all,
>>>
>>> I'm designing a cortex M4 based audio/synth board using the cs4344 DAC
>>> and a cs5343 ADC.
>>> As i'm new to designing with DAC/ADCs here's a question.
>>>
>>> Is there an opamp needed for the DAC output stage?
>>> I've seen opamp output stages in quite a few designs using different
>>> kinds of DACs, but the datasheet for the cs4344 just states some R/C
>>> filters after the dac output as reference design.
>>>
>>> cheers,
>>> julian
>>> _______________________________________________
>>> Synth-diy mailing list
>>> Synth-diy at dropmix.xs4all.nl
>>> http://dropmix.xs4all.nl/mailman/listinfo/synth-diy
>> Hi Julian,
>>
>> Which Cortex M4 device are you using?
>>
>> I have some Simple sine and filter examples using a Keil tool.
>>
>> Regards,
>>
>> Terry Shultz
>>
>> C/o thx1138 at earthlink.net
>>
> 
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