EmbeddedRelated.com
Forums
The 2024 Embedded Online Conference

Micro controllers with UHF transceivers?

Started by Joerg October 24, 2007
Hello Folks,

After some Google searching and perusing the sites of the usual 
contenders I only found one uC family that has serious on-chip RF 
transceiver capabilities, the Cypress CYWUSB6953 and its brethren. 
rfPICs and others usually only have a transmitter.

Anyhow, the Cypress will only serve 2.45GHz but I need the lower UHF 
bands for range reasons. Is anything coming down the pike soon or will 
that have to remain a two-chip solution?

-- 
Regards, Joerg

http://www.analogconsultants.com/
Joerg wrote:

> Hello Folks, > > After some Google searching and perusing the sites of the usual > contenders I only found one uC family that has serious on-chip RF > transceiver capabilities, the Cypress CYWUSB6953 and its brethren. > rfPICs and others usually only have a transmitter. > > Anyhow, the Cypress will only serve 2.45GHz but I need the lower UHF > bands for range reasons. Is anything coming down the pike soon or will > that have to remain a two-chip solution? >
How about CC1110F32 from TI. don
donald wrote:
> Joerg wrote: > >> Hello Folks, >> >> After some Google searching and perusing the sites of the usual >> contenders I only found one uC family that has serious on-chip RF >> transceiver capabilities, the Cypress CYWUSB6953 and its brethren. >> rfPICs and others usually only have a transmitter. >> >> Anyhow, the Cypress will only serve 2.45GHz but I need the lower UHF >> bands for range reasons. Is anything coming down the pike soon or will >> that have to remain a two-chip solution? >> > How about CC1110F32 from TI. >
Thanks, Don! How could I have missed that? I was looking at lots of CC11xx datasheets today. Five bucks is a bit highish but would work in this case. I guess the programmers will throw tomatoes when I suggest that. It's a 8051 core (I love the 8051...) For some reason TI's server was choking a lot today. -- Regards, Joerg http://www.analogconsultants.com/
Joerg wrote:
> donald wrote: > >> Joerg wrote: >> >>> Hello Folks, >>> >>> After some Google searching and perusing the sites of the usual >>> contenders I only found one uC family that has serious on-chip RF >>> transceiver capabilities, the Cypress CYWUSB6953 and its brethren. >>> rfPICs and others usually only have a transmitter. >>> >>> Anyhow, the Cypress will only serve 2.45GHz but I need the lower UHF >>> bands for range reasons. Is anything coming down the pike soon or >>> will that have to remain a two-chip solution? >>> >> How about CC1110F32 from TI. >> > > Thanks, Don! How could I have missed that? I was looking at lots of > CC11xx datasheets today. Five bucks is a bit highish but would work in > this case. I guess the programmers will throw tomatoes when I suggest > that. It's a 8051 core (I love the 8051...) > > For some reason TI's server was choking a lot today. >
I've been looking at useing this myself. don
On Oct 24, 9:13 pm, Joerg <notthisjoerg...@removethispacbell.net>
wrote:

> > How about CC1110F32 from TI. > > Thanks, Don! How could I have missed that? I was looking at lots of > CC11xx datasheets today. Five bucks is a bit highish but would work in
You should consider this part limited lifespan IMHO precisely because of the 51 core. Remember Chipcon is now owned by TI. I would say if your design horizon exceeds 3~4 years it would be better not to pick this part. What part of the spectrum are you trying to cover; 433MHz? 860-ish? Quite a few solutions aimed at markets like RKE. For example Atmel covers certain frequencies from 315 to 915MHz ASK/FSK selectable.
"Joerg" <notthisjoergsch@removethispacbell.net> wrote in message news:Q4STi.351$%Y6.219@nlpi061.nbdc.sbc.com...
> donald wrote: >> Joerg wrote: >> >>> Hello Folks, >>> >>> After some Google searching and perusing the sites of the usual contenders I only found one uC family that has serious >>> on-chip RF transceiver capabilities, the Cypress CYWUSB6953 and its brethren. rfPICs and others usually only have a >>> transmitter. >>> >>> Anyhow, the Cypress will only serve 2.45GHz but I need the lower UHF bands for range reasons. Is anything coming down the >>> pike soon or will that have to remain a two-chip solution? >>> >> How about CC1110F32 from TI. >> > > Thanks, Don! How could I have missed that? I was looking at lots of CC11xx datasheets today. Five bucks is a bit highish > but would work in this case. I guess the programmers will throw tomatoes when I suggest that. It's a 8051 core (I love the > 8051...) > > For some reason TI's server was choking a lot today. > > -- > Regards, Joerg > > http://www.analogconsultants.com/
That's a neat part. 2 wire programming too. Cheers
larwe wrote:
> On Oct 24, 9:13 pm, Joerg <notthisjoerg...@removethispacbell.net> > wrote: > > >>>How about CC1110F32 from TI. >> >>Thanks, Don! How could I have missed that? I was looking at lots of >>CC11xx datasheets today. Five bucks is a bit highish but would work in > > > You should consider this part limited lifespan IMHO precisely because > of the 51 core. Remember Chipcon is now owned by TI. I would say if > your design horizon exceeds 3~4 years it would be better not to pick > this part.
That's some strange logic. TI has had '51 devices in their USB and BurrBrown product lines for some time. There is no reason to re-spin proven die, to swap-out one core, and put another in ?!. This is engineering, not fashion. -jg
Joerg <notthisjoergsch@removethispacbell.net> hath wroth:

>After some Google searching and perusing the sites of the usual >contenders I only found one uC family that has serious on-chip RF >transceiver capabilities, the Cypress CYWUSB6953 and its brethren. >rfPICs and others usually only have a transmitter. > >Anyhow, the Cypress will only serve 2.45GHz but I need the lower UHF >bands for range reasons. Is anything coming down the pike soon or will >that have to remain a two-chip solution?
Atmel: <http://www.atmel.com/dyn/products/devices.asp?family_id=651> -- Jeff Liebermann jeffl@cruzio.com 150 Felker St #D http://www.LearnByDestroying.com Santa Cruz CA 95060 http://802.11junk.com Skype: JeffLiebermann AE6KS 831-336-2558
You wrote:

> After some Google searching and perusing the sites of the usual > contenders I only found one uC family that has serious on-chip RF > transceiver capabilities, the Cypress CYWUSB6953 and its brethren. > rfPICs and others usually only have a transmitter.
If it is a 2.4GHz transceiver you need (and not a complete wireless USB link), you should have a look at www.nordicsemi.com. If you can live with a 8051-compatible CPU core (_you_ can, I suppose), something like the 24E1 might be a reasonable choice.
> Anyhow, the Cypress will only serve 2.45GHz but I need the lower UHF > bands for range reasons. Is anything coming down the pike soon or will > that have to remain a two-chip solution?
What range do you need? With chips from Nordic, we ended our free air tests when the parking lot of the company ended - nearly 100m, and zero transmission errors. Ok, in a crowded train station it was about 30m with 50% errors. Regards Michael
On Oct 25, 12:08 am, Jim Granville <no.s...@designtools.maps.co.nz>
wrote:

> There is no reason to re-spin proven die, to swap-out one core, > and put another in ?!.
Suppose I told you that I /know/ it is being done, I'm not merely theorizing? The interest is that MSP430 is low-power-optimized and a lot of applications for the Chipcon standalone txcvr parts are battery- powered. I also believe those old parts are made on a fairly ancient process which TI would like to retire, but that latter comment is just hearsay.

The 2024 Embedded Online Conference