How to bypass FIR filters in AD9371?

Hello,

My customer are designing new FIR filter (in FPGA) because FIR performance in AD9371 doesn’t meet their repeater requirement.

For this , they wants to bypass FIR filters in AD9371 like below picture

Questions:

1.  - They want to bypass TFIR/ RFIR. Is it possible?

     - If it possible, how to bypass TFIR/ RFIR?

     - If they do the bypass TFIR/RFIR, is the delay of transmit path & receive path reduced?

 

2.  -  If they can’t do bypass TFIR/RFIR, how to control the coefficient of Filters?

     - How to extract the coefficient of Filters in AD9371?Filter

     - Zero IF fiducially, Passband: 0~49.2MHz,   Stopband: 50.8MHz,  Stopband Attenuation: Over 50dB

 

Please advise me.

 

Regards,

Se-woong

AD9371_FIR_bypass_function_request-20th-June-2018.pptx