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Best audio processing chip

Started by Shafik January 27, 2006
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


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
"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" <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 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
"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
"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