Hi,
I am working with the CC1101 and CC1190 and have many related questions that I would like to run by someone experienced with TI radio chips. Sorry for stacking all of them at once. Answers or comments to any of the question would really help. Thanks in advance for the help.
- Is Japan the only country with ISM for SRDs in the 950 to 960MHz band? I hear that they are moving their RFID band to 915 band but not sure if they are moving the SRDs also.
- With using just the CC1101 (without the CC1190) is there a way to accomplish a common design, the CC1101 is specified up to 940MHz is there a way it can be used up to 960Mhz or do we need to use the CC1101E for that band?
- We are planning to use the Johanson Technology balun, 0896BM15A0001, that is specified from 863 to 928Mhz, can that part be pushed to use also in the 950-960MHz band I wonder? Or if not is there an alternative balun for the 1101 or 1101E for that band?
- From the output of the balun (without the CC1190) I understand that we only need a low pass LC filter to reduce harmonics enough for EU and US regulations. In the 950-960MHz bands would there need to be any extra filtering required?
- If we use the CC1190 will there be a need to use a SAW filter before it for EU regulations I understand that it is necessary for EU band regulations?
- In the US band is a SAW filter required before the CC1190?
- After the CC1190 is there any need for additional filtering other than the LC discretes specified?
- On the LC discretes specified after the CC1190, TI specifies LQW inductors from Murata, would the LQP inductors of the same values and tolerance be ok to use? The reason I ask is that LQP inductors are much cheaper like 5c instead of 12c for the LQW.
Regards,
Brian Wang