LMX2694EPEVM: recommended oscillator to populated on

giovanny Mateus

Prodigy 70 points

Part Number: LMX2694EPEVM
Other Parts Discussed in Thread: LMX2594EVM

at the moment im ussing the pll of the microcotroller to generate the 100MHz

i know that is not a realiable reference, but it keeps things working

Could you please , also suggest a pad (close to Y1) to pull the 3,3 V

thanks

over 3 years ago

0 Noel Fung over 3 years ago

TI__Guru* 88450 points

Hi Giovanny,

Any 7mmx5mm XO can fit the board. You can pick either a single-ended output or differential output XO. Table 4 of the EVM user's guide has the instruction how to populate the EVM to match the XO.

0 giovanny Mateus over 3 years ago in reply to Noel Fung

Prodigy 70 points

Hi Fung,

From Table 4: the pads for R24 and C34 dot not exist at all

i guess there are some disvadvantages when populating a XO on the LMX2694EPEVM (thats why, TI did not release the product with XO on ). Therefore, I think , that not any 7mmx5mm fullfil this job..

Thanks for you reply

0 Noel Fung over 3 years ago in reply to giovanny Mateus

TI__Guru* 88450 points

Hi Giovanny,

R24 and C34 are at the bottom side of the board.

The lead time of a high performance XO is very long and the supply is sometime not stable, this is the reason why we are not putting a XO on the board.