PCM1804: Violating INTERFACE TIMING FOR PCM

Hideki Hayashi1

Part Number: PCM1804

Hi team,

If rising time or falling time, max 10ns which described at page 24 of the datasheet, is violated, what can be expected to happen?

Regards,

Hideki

over 5 years ago

0 Zak Kaye over 5 years ago

TI__Mastermind 23050 points

Hi Hideki-san,

Longer rise times can potentially degrade the quality of the clock edge and result in increased jitter in the clock. This jitter can lead to a degradation in the THD performance of the device.

Best,

Zak

0 Hideki Hayashi1 over 5 years ago in reply to Zak Kaye

TI__Genius 9590 points

Hi Zak,

Is there any possibility to shorten IC lifespan or to increase a possibility to damage IC? Customer ask this because the pins are keep 'middle voltage' (not H, also not L) for a longer time than the datasheet expect.

Regards,

Hideki

0 Zak Kaye over 5 years ago in reply to Hideki Hayashi1

TI__Mastermind 23050 points

Hi Hideki,

This is not going to damage the device. Note that keeping the pins biased between the rails though could result in higher power consumption.

Best,

Zak

Audio

Audio forum

PCM1804: Violating INTERFACE TIMING FOR PCM