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PICList Thread
'[PIC]: PIC Stereo FM Radio'
2004\09\20@213350 by Andrew Kieran

picon face

Hi List.  I've been looking all over the web for this info with
no luck so I hope that someone else has already traveled this
road.

I want to build a PIC controlled, FM-stereo clock radio.  The
clock is no problem, but I'm looking for a small (low parts
count) IC with the radio, Stereo decoder, digital tuner, volume
control, and amplifier circuits.  (Analog is not my forte).

It looks as though Phillips Semi makes the perfect part; the
TEA5880TS

http://www.semiconductors.philips.com/pip/TEA5880TS_N1.html

But it seems as though they are only available in lots of a
thousand.  I can't find anything about samples, or a distributor
that will sell small quantities.

Has anyone tackled this project or something similar?

Can you recommend a supplier?  An approach? ? A specific chip?

Does anyone know a radio module that can be PIC controlled to
set frequency, volume, etc?

This is a one-off project so if the module is relatively
expensive ( > $25-$30 ) that's okay.  I'm not looking to hack a
commercial radio since, in that case, I may as well just go buy
a clock radio.

I welcome any product or supplier suggestions.

Thanks,
Andrew

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2004\09\20@232436 by Chetan Bhargava

picon face
Looks like a good project. The FM radio chip is fine for your app.
Good thing is that it has MPX out so you can integrate a RDS decoder
on the PIC.

It would be difficult to find the chip here.

Regards,


Chetan Bhargava
http://www.bhargavaz.net


On Mon, 20 Sep 2004 21:33:50 -0400, Andrew Kieran <spam_OUTakieranTakeThisOuTspamureach.com> wrote:
{Quote hidden}

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2004\09\21@110038 by Harold Hallikainen

face picon face
I've also seen "tuner modules" that are little metal cans with RF in,
audio out, and an SPI interface. I investigated this for a radio for the
blind years ago, but it did not prove cost effective. It might be for your
application, though.

Harold

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2004\09\21@120455 by Dave VanHorn

flavicon
face
At 10:00 AM 9/21/2004, Harold Hallikainen wrote:

>I've also seen "tuner modules" that are little metal cans with RF in,
>audio out, and an SPI interface. I investigated this for a radio for the
>blind years ago, but it did not prove cost effective. It might be for your
>application, though.

Where did you see these?

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2004\09\21@133922 by Harold Hallikainen

face picon face
I can't find my notes on the project right now (of course), but it MAY
have been the Toko TMC979, which is an AM/FM tuner with I2C interface.
However, I don't see that on their website as a current product. I hope
they, or something similar, still exists...

Harold


> At 10:00 AM 9/21/2004, Harold Hallikainen wrote:
>
>>I've also seen "tuner modules" that are little metal cans with RF in,
audio out, and an SPI interface. I investigated this for a radio for the
blind years ago, but it did not prove cost effective. It might be for
{Quote hidden}

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2004\09\21@215135 by Andrew Kieran

picon face

This is the sort of thing I'm looking for.  Someone must know of
a suitable part and a supplier.  While looking for a TEA5880, I
came across one distributor with 400,000 units in stock so it's
not an exotic application.  I just need someone who'll sell me
three or four pieces.

If anyone finds a chip or module which would enable a PIC to
control an FM-stereo receiver, then please point me in the right
direction.

Thanks,
Andrew
---- On Tue, 21 Sep 2004, Harold Hallikainen
(haroldspamKILLspamhallikainen.com) wrote:

> I can't find my notes on the project right now (of course),
but it MAY
> have been the Toko TMC979, which is an AM/FM tuner with I2C
interface.
> However, I don't see that on their website as a current
product. I hope
> they, or something similar, still exists...
>
> Harold
>
>
> > At 10:00 AM 9/21/2004, Harold Hallikainen wrote:
> >
> >>I've also seen "tuner modules" that are little metal cans
with RF in,
> audio out, and an SPI interface. I investigated this for a
radio for the
> blind years ago, but it did not prove cost effective. It might
be for
{Quote hidden}

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2004\09\22@025604 by Chetan Bhargava

picon face
Well, you can call the distributor and ask whether they can give you
samples. I'm sure that they would be able to. I would be interested in
couple of them too.

In past I have asked Philips for samples of RDS decoder SAA6579. Those
were not available in US. The marketing manager got them from Europe.

All the RDS decoders use a special frequency xtals that are not
available in US. The frequency used are 4.332MHz and / or 8.664. Had
to get them from Europe.

> This is the sort of thing I'm looking for.  Someone must know of
> a suitable part and a supplier.  While looking for a TEA5880, I
> came across one distributor with 400,000 units in stock so it's
> not an exotic application.  I just need someone who'll sell me
> three or four pieces.

Regards,

Chetan
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2004\09\23@115631 by Ken Pergola

flavicon
face

I thought of this thread when I saw the Philips TEA5767 single-chip FM
stereo radio mentioned in the September 2004 issue of Portable Design. It
was used in the Portable Media Assistant contest entry which won Grand Prize
in Freescale Semiconductor's i.MX21Smart Speed Design Contest.

Several FM radio ICs including the TEA5767/68 are features here:

<www.semiconductors.philips.com/markets/computing/pda/fmradio/index.h
tml>


- TEA5767HL with 3-wire bus – LQFP32
- TEA5768HL with I2C-bus – LQFP32
- TEA5767HN with switchable 3-wire / I2C-bus – small HVQFN40

Best regards,

Ken Pergola


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2004\09\23@152730 by Mike Reid

picon face
I'm in the home automation industry and there are a number of companies
who produce multi-channel distributed audio systems for the residential
market. Most of them use an AM-FM module from Alps.  Here is the link to
the part that many use:

www3.alps.co.jp/cgi-bin/WebObjects/catalog.woa/wa/normal?language
=english&country=com&top_mode=2003&product=1



My only warning is that there is a 500 piece minimum order. One of my
contacts told me they pay about $10 per piece at the 500 piece price,
but that the part is on allocation and is hard to get. He also told me
that by contacting an Alps rep you might be able to get samples.

He loves the part as it easily interfaces to just about any processor
and display and is very reliable. If I twist his arm he might also sell
me a module or two!

Mike

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2004\09\23@161403 by Mike Reid

picon face
I'm in the home automation industry and there are a number of companies
who produce multi-channel distributed audio systems for the residential
market. Most of them use an AM-FM module from Alps.  Here is the link to
the part that many use:

www3.alps.co.jp/cgi-bin/WebObjects/catalog.woa/wa/normal?language
=english&country=com&top_mode=2003&product=1



My only warning is that there is a 500 piece minimum order. One of my
contacts told me they pay about $10 per piece at the 500 piece price,
but that the part is on allocation and is hard to get. He also told me
that by contacting an Alps rep you might be able to get samples.

He loves the part as it easily interfaces to just about any processor
and display and is very reliable. If I twist his arm he might also sell
me a module or two!

Mike

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2004\09\23@171335 by Andrew Kieran

picon face

Ken,
Thanks for your response.  The list has been pretty quiet on
this thread so either there's not much interest in the project
or, more likely, noone knows of a source for these chips.

I previously came accross the TEA5880 and the TEA5757 which are
perfect for this application.  Unfortunately, I can't find a
source that will sell or sample just a few chips.

Again, thanks.  If you think of anything else, please let me
know.

Andrew






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---- On Thu, 23 Sep 2004, Ken Pergola (.....no_spamKILLspamspam.....localnet.com)
wrote:

>
> I thought of this thread when I saw the Philips TEA5767
single-chip FM
> stereo radio mentioned in the September 2004 issue of Portable
Design. It
> was used in the Portable Media Assistant contest entry which
won Grand Prize
> in Freescale Semiconductor's i.MX21Smart Speed Design Contest.
>
> Several FM radio ICs including the TEA5767/68 are features
here:
>
>
<www.semiconductors.philips.com/markets/computing/pda/fmradio/index.h
{Quote hidden}

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2004\09\24@202424 by Andrew Kieran

picon face

Mike,
Thank you for this info.  I was definitely not aware of these
units but they look perfect (except for the product allocation
and minimum quantities).  

I can't find any detail technical info on-line so I'm going to
try Alps and see what I can find out.  Thanks for pointing me in
this direction.

Andrew



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---- On Thu, 23 Sep 2004, Mike Reid (EraseMEmikecreidspam_OUTspamTakeThisOuTmsn.com) wrote:

> I'm in the home automation industry and there are a number of
companies
> who produce multi-channel distributed audio systems for the
residential
> market. Most of them use an AM-FM module from Alps.  Here is
the link to
> the part that many use:
>
>
www3.alps.co.jp/cgi-bin/WebObjects/catalog.woa/wa/normal?language
> =english&country=com&top_mode=2003&product=1
>
>
>
> My only warning is that there is a 500 piece minimum order.
One of my
> contacts told me they pay about $10 per piece at the 500 piece
price,
> but that the part is on allocation and is hard to get. He also
told me
> that by contacting an Alps rep you might be able to get
samples.
>
> He loves the part as it easily interfaces to just about any
processor
> and display and is very reliable. If I twist his arm he might
also sell
{Quote hidden}

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