LMK04826BEVM: LMK04826 JESD204B

kwan k

Prodigy 90 points

Part Number: LMK04826BEVM
Other Parts Discussed in Thread: LMK04826

Hello

I want to generate 6 pairs of device clock and sysref. I need help to setup the device, can somebody help me?

Thanks, kk

over 6 years ago

0 Puneet Sareen over 6 years ago

TI__Expert 8865 points

Hello KK,

Yes, let me know the input frequency, output frequencies and i can help you with setup.
Are you working wit the LMK04826 EVM?

Best regards
Puneet

0 kwan k over 6 years ago in reply to Puneet Sareen

Prodigy 90 points

Hi Puneet
I want to generate 4x 491.52Mz and 4x 3.84 MHz. I m confused with all the mux settings. can you help me for setup?
Thanks, kk

0 Puneet Sareen over 6 years ago in reply to kwan k

TI__Expert 8865 points

Hello KK,
What input frequency you want to use and which SYSREF mode (SPI/PIN)? Should the SYSREF be configured in continuous mode or pulsed?
Best regards
Puneet

0 kwan k over 6 years ago in reply to Puneet Sareen

Prodigy 90 points

Hi
30.72MHz. Which mode should I use, single loop or dual loop?

0 Puneet Sareen over 6 years ago in reply to kwan k

TI__Expert 8865 points

Hello KK,

If the input clock needs jitter cleaning, then you can use dual loop. If it is clean clock, then you can use single loop PLL2 only.

I created a TICSpro configuration file which you can load. This is for PLL2 only configuration. You will have to apply the clock at OSCin.

Dont hesitate to contact me if you see any issue.

Best regards

Puneet

LMK04826_TICS_e2e.zip

0 kwan k over 6 years ago in reply to Puneet Sareen

Prodigy 90 points

Thanks Puneet, can you also generate one settings for pulsed mode?

0 Puneet Sareen over 6 years ago in reply to kwan k

TI__Expert 8865 points

Hello Kk,

Please find attached the configuration. I enabled the pulser. By the way, you can put the device in different modes by using the "Set Modes" page in TICSpro. Dont hesitate to contact for any firther questions.

Best regards

Puneet

LMK04826_TICS_pul_e2e.zip

Clock & timing

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LMK04826BEVM: LMK04826 JESD204B