LMK05318B: LMK05318B output need 25ppm drift

Eddie Chou

Part Number: LMK05318B

Hi Team,

My customer is using LMK05318B output need +25ppm drift.

CH0~2: 156.25MHz, LVDS => 156.254131MHz

CH3, 6: OFF

CH4: 25MHz, CMOS +25ppm ==>25.000625MHz

CH5: 156.25MHz, LVPECL ==> 156.254131MHz

CH7: 156.25MHz, CMOS ==> 156.254131MHz

I have modify tcs file below, would you help to confirm below configuration? thanks.

Thanks & Regards

Eddie Chou

0 Jennifer Bernal over 2 years ago

Hi Eddie,

The TICS file does not match the outputs you listed above. Does the customer want 156.2539 MHz or 156.254131 MHz? Also, CH6 is disabled in the config.
If I look at the shared tics file, I have made some adjustments:
1. Identical frequencies should be placed on adjacent channels to avoid coupling from other output frequencies.
2. Outputs are sourced from the BAW VCO (PLL1) which has better jitter performance.
3. e2e_LMK05318B output need 25ppm drift_Sept 20 2022.tcs

Regards,

Jennifer

Clock & timing forum