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WM8731 alternative?


 

The WM8731 is obsolete and only available from dodgy Aliexpress suppliers. Has anyone sucessfully used an alternative in their homebrew sBitx or zBitx??
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Analog Devices claim that the SSM2603 is a near equivalant but this is only in LFCSP package and pricey.
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-- Andy, g8hck


 

We have a large stock that should last another 1000 radios


On Sat, Oct 26, 2024, 7:50 PM Andy Rutter via <andy=[email protected]> wrote:
The WM8731 is obsolete and only available from dodgy Aliexpress suppliers. Has anyone sucessfully used an alternative in their homebrew sBitx or zBitx??
?
Analog Devices claim that the SSM2603 is a near equivalant but this is only in LFCSP package and pricey.
?
-- Andy, g8hck


 

But you don't sell the chips. I am building my interpretation of zBitx and would prefer to use a CODEC that is available.


 

Don't you have the zbitx hat? Ask around many are lying unused in the junk boxes around the world


On Sat, Oct 26, 2024, 9:17 PM Andy Rutter via <andy=[email protected]> wrote:
But you don't sell the chips. I am building my interpretation of zBitx and would prefer to use a CODEC that is available.


 

I plan to use a Radxa Zero 3W which has a slighly different pin layout.


 

Hi,?
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I use this board from amazon.
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Audio Injector Zero Sound Card for The Raspberry Pi
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Juan WP3DN
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Juan -- GREAT FIND!!!? ?THANKS!!!
Gordon KX4Z


On Sat, Oct 26, 2024 at 7:26?PM WP3DN via <3voltios=[email protected]> wrote:
Hi,?
?
I use this board from amazon.
?
Audio Injector Zero Sound Card for The Raspberry Pi
?
Juan WP3DN
?


 

It is ok to buy wm8731seds either Ali... Or ebay. An year back I had them from mouser.?
You need not suspect every item of ali... .
?
Regards
Sarma vu3zmv


 

Analog devices has become a bit of the dark lord of all things RF and analog. They have bought out everyone except the Si5351 and they sell them at exhorbitant prices.


On Sun, Oct 27, 2024, 6:36 AM MVS Sarma via <mvssarma=[email protected]> wrote:
It is ok to buy wm8731seds either Ali... Or ebay. An year back I had them from mouser.?
You need not suspect every item of ali... .
?
Regards
Sarma vu3zmv


 

¿ªÔÆÌåÓý

Amazing. That¡¯s simply amazing. An entire radio on a chip with those capabilities.

Thanks for providing that!!
Gordonkx4z?



On Oct 26, 2024, at 21:14, Ashhar Farhan via groups.io <farhanbox@...> wrote:

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Analog devices has become a bit of the dark lord of all things RF and analog. They have bought out everyone except the Si5351 and they sell them at exhorbitant prices.


On Sun, Oct 27, 2024, 6:36 AM MVS Sarma via <mvssarma=[email protected]> wrote:
It is ok to buy wm8731seds either Ali... Or ebay. An year back I had them from mouser.?
You need not suspect every item of ali... .
?
Regards
Sarma vu3zmv


 

?
So my usual reply to the concerns that this or that corporation is unfairly making a? profit from their expertise .....
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(which reminds me of the joke about the mechanic who chastises the surgeon for his high prices, pointing out that he, too, works on complicated engines and diagnoses and fixes all kinds of problems like broken pushrods, valves that need grinding, etc -- to which the surgeon agrees with the skill of the mechanic but then simply asks,? "Can you fix the engine WHILE IT IS STILL RUNNING?" )
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so my usual reply is just to encourage the person upset about the profit, is to say,? "Why don't you yourself go BUY [a portion of] the Company, so YOU would be receiving that profit and thus able to easily afford their product?
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In this case, ADI was selling for only about $30 / share back in 2010.? ?If you have put $300 into buying a tiny portion of that company, right now you would be sitting on somewhere north of $2,300 -- and thus EASILY able to purchase one or more of their transceiver-on-a-chip, which on Mouser is going for $377 in quantities of single digits (due to a little inflation, likely due to a bit of money-printing (only a few Trillion) by the U.S. government) ?
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So there are ways to deal with such corporations.? ?But just like THEY had to take a risk to produce that product, YOU have to take the risk of picking which corporation to purchase.? ?many go out of business every year.? ?There is no free lunch!? They worked hard to make that profit!
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73,
Gordon kx4z
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Gordon,?
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That is the chip used in the adalm pluto.
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If you want a nice project look for the langstone project.
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Juan


 

¿ªÔÆÌåÓý

Wow! Absolutely amazing. I had no idea the stuff was going on. I need to get with the times.

Gordon kx4z



On Oct 27, 2024, at 00:11, WP3DN via groups.io <3voltios@...> wrote:

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Gordon,?
?
That is the chip used in the adalm pluto.
?
If you want a nice project look for the langstone project.
?
Juan


 

If somebody has purchased good ones at Aliexpress it would be nice having their coordinates, I also rolled my own and, I'll start functional tests, at least the 12 Mhz works.
73s Hubert F6DUK