LMX2582: 2 distinct output frequencies

Nandini Muralidharan

Part Number: LMX2582
Other Parts Discussed in Thread: LMK1C1102

Tool/software:

Hi,

With LMX2582, we want to get two different output frequencies.

1st output frequency: 28.125MHz to 1800MHz

2nd output frequency: 100MHz

The input oscillator to PLL is 100MHz

With TiCS PRO, I am not sure how to set this up. Can you pls assist?

Thanks

0 Noel Fung 6 months ago

Hi Nandini,

This is not possible with LMX2582, both outputs share the same divider, if outputA is 1.8GHz, outputB can only be either VCO frequency or 1.8GHz.

You can use a clock buffer, such as LMK1C1102, to fanout two 100MHz copies. One of the outputs is used as the reference clock to LMX2582.

0 Nandini Muralidharan 6 months ago in reply to Noel Fung

Thank you Noel.

I need some assistance to set the device in TICS pro. Is this something you can assist with?

Please let me know how to reach out to you further on this?

0 Noel Fung 6 months ago in reply to Nandini Muralidharan

Hi Nandini,

Please continue to use E2E whenever you have application issues. Thank you.

Clock & timing forum