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Discussion Groups

Discussion Groups | TMS320C6x | playing audio out of dsk6711 through ad535

Technical discussions about the TI C6000 DSPs (including the c62x, c64x and c67x DSPs).

  

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playing audio out of dsk6711 through ad535 - suni...@tataelxsi.co.in - Apr 3 11:47:00 2005




Hi everybody,
I have a simple question. I am using the DSK6711 which has an AD535 on board. The AD535 has the sampling frequency limited to 8 Khz. Does this also mean that i will be unable to play out audio through the ad535 at a higher frequency, or is it just that the input analog signal will be sampled only at 8 Khz?

Thanks and regards

-Sunil





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Re: playing audio out of dsk6711 through ad535 - George Wicks - Apr 4 13:25:00 2005


Sunil:

It looks like the AD535 is, actually was since it's now considered obsolete,
a Voice Codec. The data sheet suggests that it can go up to input/output
rate of 11.025 kHz (might be constrained to 8 kHz on the 6711 DSK), so I
think you're limited to just voice handling.

I <believe> TI has a PCM3003 audio codec daughtercard, which has much larger
range - that would probably be the best avenue - unless someone has any
other ideas.

HTH,
g. ----- Original Message -----
From: <sunilks@suni...>
To: <c6x@c6x@...>
Sent: Sunday, April 03, 2005 10:47 AM
Subject: [c6x] playing audio out of dsk6711 through ad535 >
>
> Hi everybody,
> I have a simple question. I am using the DSK6711 which has an AD535 on
board. The AD535 has the sampling frequency limited to 8 Khz. Does this also
mean that i will be unable to play out audio through the ad535 at a higher
frequency, or is it just that the input analog signal will be sampled only
at 8 Khz?
>
> Thanks and regards
>
> -Sunil




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Re: playing audio out of dsk6711 through ad535 - sreenivas s - Apr 5 1:22:00 2005

hi,
AD535 has a fixed sampling rate of 8khz.
Even if u pass audio through it, u will be able to get only frequencies between 0 to 4 khz.
And i guess there is a antialiasing filter there so if a analog signal more than 4khz. is passed it won't get aliased.
regards
seenu

s...@tataelxsi.co.in wrote:


Hi everybody,
I have a simple question. I am using the DSK6711 which has an AD535 on board. The AD535 has the sampling frequency limited to 8 Khz. Does this also mean that i will be unable to play out audio through the ad535 at a higher frequency, or is it just that the input analog signal will be sampled only at 8 Khz?

Thanks and regards

-Sunil

<*> To visit your group on the web, go to:
http://groups.yahoo.com/group/c6x/

<*> To unsubscribe from this group, send an email to:
c...@yahoogroups.com

<*

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Re: playing audio out of dsk6711 through ad535 - sreenivas s - Apr 5 1:26:00 2005

hi,
just a suggestion, if u r looking out for using a DSK for an audio application , u can go for TMS320C6713 DSK.
Which has got a PCM3XXX series codec in it and can support multiple sampling rates.
regards
seenu

George Wicks <g...@sbcglobal.net> wrote:


Sunil:

It looks like the AD535 is, actually was since it's now considered obsolete,
a Voice Codec. The data sheet suggests that it can go up to input/output
rate of 11.025 kHz (might be constrained to 8 kHz on the 6711 DSK), so I
think you're limited to just voice handling.

I TI has a PCM3003 audio codec daughtercard, which has much larger
range - that would probably be the best avenue - unless someone has any
other ideas.

HTH,
g.----- Original Message -----
From:
To:
Sent: Sunday, April 03, 2005 10:47 AM
Subject: [c6x] playing audio out of dsk6711 through ad535>
>
> Hi everybody,
> I have a simple question. I am using the DSK6711 which has an AD535 on
board. The AD535 has the sampling frequency limited to 8 Khz. Does this also
mean that i will be unable to play out audio through the ad535 at a higher
frequency, or is it just that the input analog signal will be sampled only
at 8 Khz?
>
> Thanks and regards
>
> -Sunil
<*> To visit your group on the web, go to:
http://groups.yahoo.com/group/c6x/

<*> To unsubscribe from this group, send an email to:
c...@yahoogroups.com

<*

Yahoo! India Matrimony: Find your life partner online.



(You need to be a member of c6x -- send a blank email to c6x-subscribe@yahoogroups.com )