Forums

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.