Looking for 1kpcs of MK484

[Joe G \(Home\)]

Hi All,

Is the AM radio receiver IC MK484 (aka AN414) still in production?

Are there any other alternatives?


Regs
Joey

 

[Adrian C]

Hi All,

Is the AM radio receiver IC MK484 (aka AN414) still in production?

Are there any other alternatives?

Googled "system on chip radio"

http://www.silabs.com/products/audiovideo/amfmreceivers/

 

[Spehro Pefhany]

Hi All,

Is the AM radio receiver IC MK484 (aka AN414) still in production?

Are there any other alternatives?


Regs
Joey

Ladda at kitsrus.com might have some.


Best regards,
Spehro Pefhany

 

[Joerg]

Hi All,

Is the AM radio receiver IC MK484 (aka AN414) still in production?

You'd have to ask the manufacturer but I doubt they still make them:

http://www.rectron.com/

I don't know this store but it's in stock, you'd have to ask how many
they have:

http://www.dse.com.au/cgi-bin/dse.storefront/4b2d4290027d0088273fc0a87e010648/Product/View/Z6525

Are there any other alternatives?

Slim pickens. There are much larger chips like the TEA5711 one but even
that's hard to find. The Sony CXA1600 is probably gone as well. I
believe there just isn't any serious market for this stuff.

 

[Phil Allison]

"Joey.G"

Where as the MK484 requires only s tuned circuit to select the
frequency.

I'm trying work out a way to use a MK484 on a set frequency with
minimal drift across operating temp.


** Since the MK484 has no local oscillator or IF amplifier, it does not
suffer from drift.

A ferrite rod antenna typically has a low enough Q factor to not need
retuning with temperature changes of the ordinary kind.

The chip only works across the AM band, plus a bit each end, you know.

Sounds to me like you are doing something quite daft with it.



..... Phil

 

[Joe G \(Home\)]

"Joey.G"


Where as the MK484 requires only s tuned circuit to select the
frequency.

I'm trying work out a way to use a MK484 on a set frequency with
minimal drift across operating temp.


** Since the MK484 has no local oscillator or IF amplifier, it does not
suffer from drift.

A ferrite rod antenna typically has a low enough Q factor to not need
retuning with temperature changes of the ordinary kind.

The chip only works across the AM band, plus a bit each end, you know.

Sounds to me like you are doing something quite daft with it.



.... Phil

Thanks for your comments on the drift of the ant coil that is incrraging.

I've been checking out data on 0805 npo 1% cap's they seem quite stable
also.


One mans daft idea is another mans brilliant idea.

Joe