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PCM3008: Frequency Stability of Oscillator

Sadanori Kato

Guru 36510 points

Part Number: PCM3008

Hi,

The system clock(SYSCK) of 3.072MHz, which is obtained by dividing the 12.288MHz oscillator by 4, is applied to PCM3008.
The frequency stability of the 12.288MHz oscillator is +/- 50ppm(standard value).
Is it recommended to use this oscillator with this specification for PCM3008?

Best regards,
Kato

over 2 years ago

+1 pdjuandi over 2 years ago

TI__Mastermind 29745 points

Hi,

It's not recommended, see apps. note below.

https://www.ti.com/lit/an/slaa469a/slaa469a.pdf?ts=1652218514561&ref_url=https%253A%252F%252Fwww.ti.com%252Fproduct%252FPCM3008

Regards.

0 Sadanori Kato over 2 years ago in reply to pdjuandi

Guru 36510 points

Hi pdjuandi-san,

Thank you for quick response.

I would like to confirm just in case, but please check the following diagram again.

Best regards,
Kato

+1 pdjuandi over 2 years ago in reply to Sadanori Kato

TI__Mastermind 29745 points

Ya this is fine.

0 Sadanori Kato over 2 years ago in reply to pdjuandi

Guru 36510 points

Hi pdjuandi-san,

Thank you for confirming.

Best regards,
Kato