ISO7740: Review of circuit

Sahil Berde

Part Number: ISO7740

Hi,

Can you please review the below circuit?

0 Koteshwar Rao over 3 years ago

Hi Sahol,

Thanks for sharing the schematic for review. The schematic looks good, please see below a couple suggestions.

Please make sure the 0.1µF decaps are placed close to device VCC/GND pins in the PCB layout, preferably within 2mm of distance on the same layer as device.
Floating EN pins are prone to EMI noises, hence, it is recommended that they are hard pulled up to their respective VCC, either directly or through a pull-up resistor.

Regards,
Koteshwar Rao

0 Sahil Berde over 3 years ago in reply to Koteshwar Rao

Thank you for your review

Please see my comments in BOLD.

Please make sure the 0.1µF decaps are placed close to device VCC/GND pins in the PCB layout, preferably within 2mm of distance on the same layer as device.(We have followed the same)
Floating EN pins are prone to EMI noises, hence, it is recommended that they are hard pulled up to their respective VCC, either directly or through a pull-up resistor.(We have implemented it))

0 Koteshwar Rao over 3 years ago in reply to Sahil Berde

Hi Sahol,

Thank you for confirming.

Regards,
Koteshwar Rao

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