"Jaime Andres Aranguren Cardona" <jaac@nospam.sanjaac.com> wrote in
news:43ded995$0$9239$6d36acad@titian.nntpserver.com:
> "Alex Gibson" <news@alexthegeek.com> wrote in message
> news:4435ueF4g93U1@individual.net...
>>
>> "Shafik" <shafik@u.arizona.edu> wrote in message
>> news:1138398019.949676.285850@z14g2000cwz.googlegroups.com...
>>> Can anyone recommend a dedicated audio processing chip with really
low
>>> power requirements? Im looking at a performance of about 50-60 MIPS.
>>> The application is SISO (single-in, single-out).
>>>
>>> Any suggestions from the Pros?
>>>
>>> Thanks,
>>> --Shafik
>>
>> What sort of processing do you want to do ?
>>
>> What about a codec chip ?
>>
>> Some have a limited range of simple digital filters.
>>
>> Something like TI TLV320AIC23B
>> http://www-s.ti.com/sc/ds/tlv320aic23b.pdf
>>
>> Need to control / set them up from a micro.
>>
>> Alex
>
> Alex:
>
> Isn't the AIC23 an audio codec? It uses filtering because of internal
> oversampling, but can it be considered as an audio processing chip?
>
> Regards,
>
> JaaC
>
>
>
The TLV320AIC23B is just an audio codec. You need a processor to do
anything with it. Jaime is correct.
--
Al Clark
Danville Signal Processing, Inc.
--------------------------------------------------------------------
Purveyors of Fine DSP Hardware and other Cool Stuff
Available at http://www.danvillesignal.com
Reply by Jaime Andres Aranguren Cardona●January 30, 20062006-01-30
"Alex Gibson" <news@alexthegeek.com> wrote in message
news:4435ueF4g93U1@individual.net...
>
> "Shafik" <shafik@u.arizona.edu> wrote in message
> news:1138398019.949676.285850@z14g2000cwz.googlegroups.com...
>> Can anyone recommend a dedicated audio processing chip with really low
>> power requirements? Im looking at a performance of about 50-60 MIPS.
>> The application is SISO (single-in, single-out).
>>
>> Any suggestions from the Pros?
>>
>> Thanks,
>> --Shafik
>
> What sort of processing do you want to do ?
>
> What about a codec chip ?
>
> Some have a limited range of simple digital filters.
>
> Something like TI TLV320AIC23B
> http://www-s.ti.com/sc/ds/tlv320aic23b.pdf
>
> Need to control / set them up from a micro.
>
> Alex
Alex:
Isn't the AIC23 an audio codec? It uses filtering because of internal
oversampling, but can it be considered as an audio processing chip?
Regards,
JaaC
Reply by Leon●January 29, 20062006-01-29
Shafik wrote:
> Can anyone recommend a dedicated audio processing chip with really low
> power requirements? Im looking at a performance of about 50-60 MIPS.
> The application is SISO (single-in, single-out).
>
> Any suggestions from the Pros?
A Philips LPC21xx ARM will give you about 60 MIPS and low-power. They
have some DSP instructions like MAC.
Leon
Reply by Alex Gibson●January 29, 20062006-01-29
"Shafik" <shafik@u.arizona.edu> wrote in message
news:1138398019.949676.285850@z14g2000cwz.googlegroups.com...
> Can anyone recommend a dedicated audio processing chip with really low
> power requirements? Im looking at a performance of about 50-60 MIPS.
> The application is SISO (single-in, single-out).
>
> Any suggestions from the Pros?
>
> Thanks,
> --Shafik
What sort of processing do you want to do ?
What about a codec chip ?
Some have a limited range of simple digital filters.
Something like TI TLV320AIC23B
http://www-s.ti.com/sc/ds/tlv320aic23b.pdf
Need to control / set them up from a micro.
Alex
Reply by Jaime Andres Aranguren Cardona●January 28, 20062006-01-28
"Shafik" <shafik@u.arizona.edu> wrote in message
news:1138398019.949676.285850@z14g2000cwz.googlegroups.com...
> Can anyone recommend a dedicated audio processing chip with really low
> power requirements? Im looking at a performance of about 50-60 MIPS.
> The application is SISO (single-in, single-out).
>
> Any suggestions from the Pros?
Am I a Pro? Anyway, I'll comment:
Have a look at Analog Devices' SigmaDSP family of products:
www.analog.com/sigmadsp
Short excerpt from the page:
"SigmaDSPT Digital Audio enables anyone to use a fully programmable audio
DSP that is easily configurable through the SigmaStudioT Graphical
Development Tool. The first generation SigmaDSP products, including the
AD1953, combine three high-performance audio DACs with the powerful DSP
core. The second generation parts, the AD1940 and AD1941, feature higher
processing power with more I/O channel
Just introduced, the ADAU1701 and ADAU1702 incorporate full analog I/O and
stand-alone functionality to provide a full audio processing system on a
single chip. The ADAV400 has the most processing power in the SigmaDSP
family and includes multichannel analog and digital connectivity."
Some of them include good performance DAC's, some also add the ADCs and
there are variants with digital only I/O.
Regards,
JaaC
Reply by Vladimir Vassilevsky●January 27, 20062006-01-27
Shafik wrote:
> Can anyone recommend a dedicated audio processing chip with really low
> power requirements? Im looking at a performance of about 50-60 MIPS.
> The application is SISO (single-in, single-out).
>
> Any suggestions from the Pros?
It depends on what kind of processing are you planning to do. From the
general purpose DSPs you can use ADI BlackFin or TI TMS55xx. If you are
looking for the particular features (equalization and such), the
specialized ICs like TAS3103 are the way to go.
Vladimir Vassilevsky
DSP and Mixed Signal Design Consultant
http://www.abvolt.com
Reply by Shafik●January 27, 20062006-01-27
Can anyone recommend a dedicated audio processing chip with really low
power requirements? Im looking at a performance of about 50-60 MIPS.
The application is SISO (single-in, single-out).
Any suggestions from the Pros?
Thanks,
--Shafik