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Posts: 2
Registered: ‎02-21-2017

SI5344 and SI5340 differences

HI,

 

What is/are the major difference between SI5344 and SI5340? It looks to me that they are very similar.

 

Thanks.

Posts: 459
Registered: ‎01-18-2004

Re: SI5344 and SI5340 differences


bvarella wrote:

What is/are the major difference between SI5344 and SI5340? It looks to me that they are very similar.


As far as I can tell, the input frequency range on the 5344 is a lot lower. 5344 specs minimum input frequency of 8 kHz, whereas the 5340's minimum is 10 MHz.

 

Also the reference clock on the 5344 is a dedicated input to the DSPLL, whereas it's one of the selectable inputs to the PLL on the 5340.

 

Input 3 on the 5344 can be used as the feedback input for the zero-delay mode. The feedback input on 5340 is only for ZDM, it cannot be used as a "regular" input.