Synthesizer CDCE913 -> Setup I2C Registers

Thomas Hagel

Other Parts Discussed in Thread: CDCE913, CDCE937, CLOCKPRO

Hi E2E! I Need some help with the Synthesizer CDCE913. My input frequency is 20MHz and i´d like to setup the I2C Registers for the Output Y1 -> for the Output-Frequency 409,6kHz, 512kHz and 614,4kHz!

Thanks for your help!

over 10 years ago

0 Arvind Sridhar over 10 years ago

TI__Mastermind 24205 points

Hi Thomas,

Just to confirm, is it 409.6 kHz/614.4 kHz or 4096/6144 kHz?

Regards

Arvind Sridhar

0 Thomas Hagel over 10 years ago in reply to Arvind Sridhar

Prodigy 50 points

Hi Arvind,
oh, sorry! I meant the frequencies 409.6kHz, 512kHz and 614.4kHz!
Regards

Thomas!

0 Arvind Sridhar over 10 years ago in reply to Thomas Hagel

TI__Mastermind 24205 points

Hi Thomas,

Sorry for the late reply. Unfortunately, we can achieve 512 kHz and 2 x required frequency (for 614.4 kHz and 409.6 kHz) using CDCE937. See configuration below

Regards

Arvind Sridhar

0 Thomas Hagel over 10 years ago in reply to Arvind Sridhar

Prodigy 50 points

Hi Arvind!
Thank you very much! Is there no possibility to solve the problem with the CDCE913?
Regards,
Thomas!

0 Arvind Sridhar over 10 years ago in reply to Thomas Hagel

TI__Mastermind 24205 points

Hi Thomas,

You could achieve the required frequencies using 3 CDCE913 devices. Each CDCE913 can be configured to generate a single frequency. Would that work out for you?

Regards

Arvind Sridhar

0 Thomas Hagel over 10 years ago in reply to Arvind Sridhar

Prodigy 50 points

Hi Arvind,

that´s right!, I´d like to configure the CDCE913 with a single frequency on Y1! Each frequency should be possible to adjust in the CDCE (409.6kHz, 512kHz and 614.4kHz)!

Regards,

Thomas

0 Arvind Sridhar over 10 years ago in reply to Thomas Hagel

TI__Mastermind 24205 points

Hi Thomas,

See individual configurations with CDCE913

In order to get a solution with the ClockPro tool Wizard, enter a frequency (> 1 MHz) that is a multiple of the required kHz frequency. You could modify the PDiv1 divider to get the required frequencies once the tool recommends a solution and you are able to get into the setup details.

Regards

Arvind Sridhar

0 Thomas Hagel over 10 years ago in reply to Arvind Sridhar

Prodigy 50 points

Hi Arvind,

it works!

Thank you very much!

Clock & timing

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Synthesizer CDCE913 -> Setup I2C Registers