LSF0108: Output distortion

Dylan Zheng

Part Number: LSF0108

Hi team,

There are some distortion in A port. The amplitude is unstable. The schematic and waveform are as follows. The signal frequency is 50 MHz. What may cause this issue? Your comments are appreciated.

Best regards,

Dylan

over 6 years ago

0 Karan Kotadia over 6 years ago

TI__Genius 16735 points

Hi Dylan,

What is your input voltage to port B? It looks like supply is at 3.3V but the input is near 5V?

I also don't know about what these lines are driving. You might need pullup resistors on the B side of the port.

https://training.ti.com/down-translation-lsf-family?cu=1134826

Please watch this series on the LSF devices. They will entirely explain operation.

Thanks!

-Karan

Logic

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LSF0108: Output distortion