LMX2592: Mount the LMX2592 on the LMX2572 circuit board

Koshi Ninomiya

Part Number: LMX2592
Other Parts Discussed in Thread: LMX2572,

Tool/software:

Dear Team,

My customer has evaluated the LMX2572 and has the prototype board of the LMX2572.
This time, they want to evaluate the LMX2592 and want to mount the LMX2592 on the LMX2572 circuit board.
There are the following pin differences between the two products.

<LMX2592> : <LMX2572>
Pin 32: NC :   RampDir
Pin 30: NC :   RampClk
Pin 28: NC :   SysRefReq
Pin 5 : NC :   SYNC

Is it possible to perform evaluation even if the LMX2592 is mounted on the LMX2572 circuit board?

Best Regards,

Koshi Ninomiya

5 months ago

0 Noel Fung 5 months ago

TI__Guru** 111590 points

Hi Ninomiya-san,

These devices are pin compatible.

For those pins you mentioned, leave them unconnected with LMX2592.

Don't forget to pull-up the RFout pins with LMX2592, LMX2572 does not require external pull-up.

0 Koshi Ninomiya 5 months ago in reply to Noel Fung

TI__Expert 5655 points

Hi Noel-san,

When the LMX2592 is mounted on the on the LMX2572 circuit board, should traces for the LMX2572 (RampDir, RampClk, SysRefReq, SYNC) be cutted? Or is it OK to leave those lines as it is?

Best Regards,

Koshi Ninomiya

+1 Noel Fung 5 months ago in reply to Koshi Ninomiya

TI__Guru** 111590 points

Hi Ninomiya-san,

you can leave those lines as is.

Clock & timing

Clock & timing forum

LMX2592: Mount the LMX2592 on the LMX2572 circuit board