AD9375 TX1 and TX2 impedance matching Network in band 300 to 1000Mhz

Looks like B0322J5050AHF does not have a DC bias in those cases you will need to add RF chokes to Tx .Can you please refer to "Transmitter Bias Design Considerations" section from UG-page 268 for more details 

Looks like B0322J5050AHF does not have a DC bias in those cases you will need to add RF chokes to Tx .Can you please refer to "Transmitter Bias Design Considerations" section from UG-page 268 for more details 

Hi, 

Thanks for the reply, but this doesn't answer the main question. The original question is the following : 

The UG says to populate L305 for the band 300-1000Mhz with the circuit of the EVM, but the  Anaren B0322J5050AHF datasheet Pin 2 is stated as GND. Is that an error or do we really have to connect it?

From your answer we need to do a wire wound choke, however the EVM with the B0322J5050AHF seems to use the pin 2 as the centertap. Is is an error from the EVM or you really want to do a centertap connection? Also, only the pin 3 seems to be connected to the Bias, is it normal?

Thanks again and have a nice day!

alexisdupont1994 said:

is an error from the EVM or you really want to do a centertap connection?

No there is no error . From the ADI EVB schematic, L305 connects one side of the BAL port to the GND and Anaren part pin2 is an internal ground . 

alexisdupont1994 said:

you really want to do a centertap connection?

No this is not a center tapped connection. 

alexisdupont1994 said:

pin 3 seems to be connected to the Bias, is it normal?

Yes.

You can implement both in your design- Populate the L305(39nH)  and also use Pin2 to Ground .