LDC1000: DRDY Behavior Datasheet

Andre Lukassen

Part Number: LDC1000

Hello guys,

I´am a little bit confused with the Datasheet. Why is here the INTB Pin longer high (red arrow) and why is the CMD: Read 0x21 suddenly started at the beginning?

regards

André

over 5 years ago

0 Kristin Jones93 over 5 years ago

TI__Genius 17440 points

Hi Andre,

The INTB pin is a logic low when asserted and a logic high when deasserted. In this case, the data conversions are ready faster than the SPI can read them.

The read command on register 0x21 is started at the beginning because INTB is asserted, meaning new data is ready. The INTB pin will pulse at every 1/ODR if no data is read or if the read is in progress. At the red arrow, INTB is deasserted because the read command on register 0x21 has registered internally.

Regards,

0 Andre Lukassen over 5 years ago in reply to Kristin Jones93

Prodigy 220 points

Thank you Kristin

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LDC1000: DRDY Behavior Datasheet