Other Parts Discussed in Thread: CDCM6208, CDCI6214, LMX2485E, LMX2571
Dear Sirs,
My customer is looking for low cost PLL or clock generator in place of
MB15F63UL ( IF block only )::::: please refer attached ppt.
:Vcc= 3.3V
:Input 26MHz ( or 25MHz) TCXO
:Output frequency
1) 276.35MHz
2) 369.95MHz
Require C/N > 80~ 90dB/Hz at center frequency at offset=1kHz
Low cost ( lower price ;1chip (2ch) or 2 chip)
I will suggest customer 2chip CDCM61001 and CDI62004 or 1 chip CDCM6208.
Question 1 ( Webench designer)
In case CDCM61001, 24+199/300 MHz input are necessary for output is 369.95MHz .
Does it mean 24+0.663333..MHz = 24.663333MHz?
Question 2
In case CDCM61001, I could not have 276.35MHz in Webench. (Clock tree builder alert) ….I think it may be too low output frequency
On the other hand, in case CDCI6214 , I could not have 369.95MHz(Clock tree builder alert).. I think it may be too high output frequency
So, I think I have to suggest CDCM6208 , but its 8ch output. Cost is $5.2 at 1ku
Would you please advise another solution?
Don’t you have smaller (2~4ch) output version of CDCM6208 ?
Thank you for your support
Best Regards