Can external input FMCW be used as local oscillator signal?I want to input FMCW signal, I wonder what the locking time of the PLL is after input. Is it related to the input FMCW frequency? FMCW frequency is 4GHz at most.
Are you trying to give FMCW signal as external LO?
ADRV9009 is also a direct conversion transceiver that converts RF to digital IQ samples on the Rx and digital IQ samples to RF signal on the TX.
You need to synthesize the FMCW digital IQ samples in baseband and use ADRV9009 to transmit and receive the same.
Thanks so much for reply!
I do want give FMCW signal as external LO generated by other chips,If I receive the same FMCW signal, then the transmitter also outputs an FMCW signal, right?
I also worry about that, each frequency signal of FMCW takes a very short time, can the PLL steadily output this FMCW signal?
In addition, can I control the stepping frequency of LO output at a certain frequency? Can I control the phase of the output signal at LO
Looking forward to your reply
This was not a tested application with our chip. You can test using our eval board and check the same.