OPT3007: Schematic check

Lumina Gui

Genius 3690 points

Part Number: OPT3007

Hi TI Teams,

Can u help to check the schematic of OPT3007 and give some suggestion for the design?

OPT3007 Schematic.pdf

We also have some question about the input voltage ripple, the input voltage is 1.8V and the voltage ripple is 100mV.

Thanks,

Kind Regards

over 2 years ago

0 Brent Elliott over 2 years ago

TI__Expert 6800 points

Hi Lumina,

You will need pull up resistors on the SDA and SCL lines unless the controllers have internal pullups. The device should operate fine under this ripple.

Thank you,

Brent Elliott

0 Lumina Gui over 2 years ago in reply to Brent Elliott

Genius 3690 points

Hi Brent,

Thanks a lot for your reply. We have designed the pull-up resistor on the complete terminal. Does the optical sensing module end also need such a design (pull up resistors on the SDA and SCL lines)?

Thanks,

Kind Regards

0 Brent Elliott over 2 years ago in reply to Lumina Gui

TI__Expert 6800 points

Hi Lumina,

There shouldn't be an issue as long as the SDA and SCL lines both have pull-up resistors on the complete circuit.

Thank you,

Brent Elliott

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OPT3007: Schematic check