Revision of RFX2411N

[sathishvps]

Now I am in designing process of RFX2411N LNA with nRF51822 while I Search for a reference schematic it has two revision 1.2 and 2.0.Which will I use?

[FormerMember]

The reference layouts for nRF51x22 (nRF51822 and nRF51422) can be found here.

For QFN, choose the QFAx reference layout.

For WLCSP, choose the CxAx reference layout.

[sathishvps]

I gone through your layout,You provide only a nordic section.I need to clarify on the RFX2411N because of the schematic version problem.It has two version.So update me with RFX2411N LNA section

[FormerMember]

RFX2411 should be placed in the 50 Ohm reference point, after all the components in the reference layout.

It will be nRF51 + matching network for the chip - RFX2411 - antenna matching network.

If RFX2411 requires any specific components to work properly, they are included in "RFX2411" above.

[sathishvps]

ok thanks .RFX2411N Provide a different version of schematic with respect to 50ohm reference point because the two version have a different component value at the impedance point of nrf51822 .If it is possible update me a design with RFX2411N

[FormerMember]

Okay, I see. I would recommend you to contact Skyworks to find out which reference layout with RFX2411N you should use.