CC1190EM915-RD Reference Design material

James,

Will look into this tomorrow and hopefully the reference design will be available no later than Monday.

Let me know if you need it before then and I can send it to you directly. 

Thanks Sverre - Monday will be fine.

Hi ,

 Can anybody tell me when reference design for CC1190-868MHz will be available????

The 868 MHz version will have the same PCB design as the 915 MHz version, but with a different BOM. The 868 MHz design is optimized for +20 dBm.

The attached schematic shows the 868 MHz BOM. The characterization of this design is on-going, but near completion so we do not expect changes to this BOM (however, no guarantees)

Hi Sverre,

        Thanks a lot for giving the design support.It will be really very helpful to us.Can i know when the characterization will be available on TI website for 868MHz.We are basically interested about dBm vs current consumption graph @ 868MHz.Coz, our application is very current critical & we will be looking for14dBmpower output from CC1190 @868MHz.

Sverre,

Thanks for getting the CC1190 design material posted.

One more quick question:  many of the ref. designs specify using "DE104iML or equivalent substrate".  I've reviewed the specs on this material from Isola, and it appears to be nothing more than a high-temp version of FR4.  It's Dk and Df are within tolerences of being identical to those of 'generic'  FR4.  It this your understanding?  If not, how does it differ that's significant?  My current project is a 2.4GHz system (I'll receive my CC2500-CC2591 PCBs tomorrow) and since my prototype fabricator (Advanced Circuits) doesn't stock DE104, I just went with FR4.  I could have chosen FR406, which I normally only use for high-layer count and CI digital designs, but if I can use FR4 for these radio designs I would obviously prefer to do so.  Any thoughts?

Current plan is to release a design note with results from the CC1101+CC1190 @868 MHz characterization in mid-March.

Initial measurements indicate that the current at +20 dBm output power is approximately 125 mA. We haven't worked on +14 dBm yet as the focus is on optimizing the PA load (i.e current consumption and PAE) for +20 dBm output power.

Hi,

Can anyone say me if there is a reference design for the CC1101+CC1090 at 868MHz?.

If not, then:

I have seen the CC1190 datasheet (figure 12 "CC1190+CC110X Application circuit") and appears a SAW filter and a capacitor connected to it from the CC1101 part. The SAW filter seems to be EPCOS-B3716 (by read some other thread), but I don't have any idea about such capacitor.  The questions are:

a) Value of that capacitor?

b) SAW filter is connected directly to PA_IN and LNA_OUT pins of CC1190 or such schematic is an approximation?

Thank you very much in advance.