"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

"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 

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

"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

"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

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

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