Can the TRF6900 operate at 370MHz?
The TRF6900 operates down to 350MHz (and probably lower); TI made some tests with the VCO, PA, LNA and Mixer. All blocks seemed to work well down to 350MHz, however, the TRF6900 is not specified or guaranteed to work at frequencies other than those in the datasheet. Note: To operate on 350MHz you have to change the proposed VCO Tank circuit. The tuning range of the DDS or the reference frequency is no problem. Q: I have Windows NT, can the MSP-EVKTRF6900 software run on my computer. A No. Q: Is it possible to realize a link in 868Mhz with 10 channels between 868.0 and 868.6 with a bandwidth of 50kHz and 50dB of protection between the two adjacent channels. The bitrate is 10K bit/s. A: The system requirements of the TRF6900 fit exactly. 50dB of “protection” will be necessary therefore, a good IF filter is necessary. Keep in mind that 50dB is not easy to achieve with two 10.7MHz ceramic filters. There are 26kHz wide 10.7MHz ceramic filters on the market from Murata. However, if insuffici