Hi alls,
Im working with trx cc1120 for wmbus application.
I'm interested in 169MHz application, so bought trxeb evaluation board+cc1120 operating at 868MHz and in added cc1120 operating at 169MHz, as raccomanded texas.
Now im tryng to write code for 868 wmbus application with cc1120 but i've found a limit in mode T about data rate.
I work with 100Ksps data rate, with frequency deviation 50KHz for FSK modulation(as protocol).
Clarkson theorem tell me that i need 300KHz filter bandwidth in above condition but cc1120 support a maximum of 250KHz filter bw.
So I lose many packets when sending them, and event that not happens if i try to reduce data rate.
I think that the problem is bandwidth receiver filter but im not really sure.
Are there solutions with cc1120 to this problem?Or some other ideas?
I'm interessed to compare two technologies with seem tranceiver so i would not buy even cc1101.
regards
