As it supports upto 56 MHz bandwidth. Rx band width is also configurable? What is the signal level of the undesirable signal it can reject?
Rejection for undesirable signal(blocker) depends on at what point you are referring to. If it is BB filter then it may not be much near the required BW, you can design a custom filter using Filter wizard and find the rejection it provides.
We recommend to use filter wizard to generate filters as it take cares of the analog filter roll-off by compensating in digital filters.
Our typical band width is between 3 Mhz tp 20 MHz. So by choosing the filter setting properly is it possible to get atleast 50 dB rejection of the RF signal. or is it required to put another filter before AD 9364.
Use filter wizard to get the exact rejections for your requirement
MATLAB Filter Design Wizard for AD9361 [Analog Devices Wiki]
The Filter design wizard you have mentioned is FIR filter design in the digital section (After the three HB filters)?
Actually the requirement is to use a band pass filter in the analog
As the AD 9364 does not have band pass in the analog domain (input signal before down conversion)
So Should I use external bandpass filter to reject signal outside band
As band pass signals are converted into separate analog I,Q paths inside AD 9364 .Can the internal low pass work the same as bandpass filter of the complete signal. The data sheet says typically the analog bandwidth is 1.4 x times the baseband signal( which is programmable).
on chip is LPF and it is direct conversion architecture.
In real time all the bands are of particular range and needs to be rejected by external filter.
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