LMK5B12204: About EEPROM setting

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Guru 21045 points

Part Number: LMK5B12204
Other Parts Discussed in Thread: LMK05318B

Hi Team,

We are looking for jitter cleaner device that meet the following specifications.

-System 1 Input =74.25MHz / Output=74.25MHz

-System 2 Input =148.5MHz / Output=148.5MHz

-Hard pin setting (so don’t use I2C)

We understand that LMK5B12204 EEPROM mode but there is no setting that satisfies System 1 and System 2.

Do you have any device that meet the above conditions?

And, would it be possible for you to set the EEPROM at your factory before shipping?

*We guess that this action is difficult.

However, we would appreciate it if you could comment.

Regards,

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over 2 years ago

0 Asim Khan over 2 years ago

TI__Genius 9260 points

HI Hide,

I have sent your request to our DPLL expert. They are currently out of office. So expect a reply by next week.

Best,

Asim

0 Hide over 2 years ago in reply to Asim Khan

Guru 21045 points

Asim-san,

Thank you for your response.

I’m looking forward to hearing from you.

Regards,

Hide

0 Jennifer Bernal over 2 years ago in reply to Hide

TI__Genius 16605 points

Hide-san,

It is possible to implement System 1 and 2 configurations in LMK5B12204. Please elaborate why you believe it is not possible.
Do you want to output 74.25 MHz and 148.5 MHz at the same time? Or are the two system settings applicable to two separate boards/systems?
There is a built-in EEPROM on the LMK05318B that can be programmed up to 100 times. We urge customers to program the EEPROM themselves. Depending on the business case, we can support the custom EEPROM configuration.

Regards,

Jennifer

0 Hide over 2 years ago in reply to Jennifer Bernal

Guru 21045 points

Hi Jennifer

I'm sorry I didn't make it clear enough.

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[Your comment 1]

I would like to set by Hard pin only (so don’t use I2C).

I understand that EEPROM default setting can’t support System 1 and System 1.

(I refer to “9.5.9 EEPROM Start-Up Mode Default Configuration”)

Is my understanding correct?

And, could you tell me the simplest EEPROM setting?

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[Your comment 2]

Same time and Other specifications are TBD.

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[Your comment 3]

Thank you for the information.

-----

Regards,

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0 Jennifer Bernal over 2 years ago in reply to Hide

TI__Genius 16605 points

Hide,

What do you mean by simplest EEPROM setting? Not sure what you mean by simple?

Yes, correct the default is stated in 9.5.9 section

Regards,

Jennifer

0 Hide over 2 years ago in reply to Jennifer Bernal

Guru 21045 points

Hi Jennifer-san,

I apologize for the confusion.

I would like to know your recommended setting of EEPROM.

Regards,

Hide

+1 Jennifer Bernal over 2 years ago in reply to Hide

TI__Genius 16605 points

Hide,

You may configure the outputs in TICSPRO LMK05318B profile. Once the configuration is finalized you can generate the EEPROM (.epr) file.

Please try generating a config. If you encounter troubles, I can support your questions.

0488.LMK05318B TICS Pro GUI Overview.pdf

Regards,

Jennifer

0 Hide over 2 years ago in reply to Jennifer Bernal

Guru 21045 points

Jennifer-san,

Thank you for the information and advice.

Regards,

Hide

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LMK5B12204: About EEPROM setting