LMX2572: difference between LMX2572 and LMX2572LP

David chen

Expert 1200 points

Part Number: LMX2572

what is the difference between LMX2572 and LMX2572LP?

over 5 years ago

0 Noel Fung over 5 years ago

TI__Guru* 81550 points

Hi David,

Here is the difference:
- max. output frequency: 2572=6.4GHz; 2572LP=2GHz
- current consumption of 2572LP is 3-5mA smaller than 2572
- 2572LP does not support SYSREF
- 2572LP supports FSK

0 David chen over 5 years ago in reply to Noel Fung

Expert 1200 points

hi Noel:
LMX2572 also support FSK? IN datasheet in first page (Support for FSK Direct Digital Modulation)

0 Noel Fung over 5 years ago in reply to David chen

TI__Guru* 81550 points

Hi David,

Sorry for the confusion.
LMX2572 supports FSK through SPI programming while LMX2572LP supports both SPI as well as I2S programming.

0 David chen over 5 years ago in reply to Noel Fung

Expert 1200 points

hi Noel: TKS! and I also want to know If I don't need SYSREF and t max. output frequency < 2GHz, I need't to change LMX2572 configuration? it can Direct replacement?

0 Noel Fung over 5 years ago in reply to David chen

TI__Guru* 81550 points

Hi David,

Correct. In fact, they are pin-2-pin compatible as well.

0 David chen over 5 years ago in reply to Noel Fung

Expert 1200 points

Noel:
Tks !

Clock & timing

Clock & timing forum

LMX2572: difference between LMX2572 and LMX2572LP