PCA9306 support signal level

HORI KOJI

Intellectual 570 points

Other Parts Discussed in Thread: PCA9306

We are planning to use PCA9306 for level translator of MDIO(2.5M) 1.8V to 3.3V.

Is there any issues?

If there are checking points , please let me know.

I'd really appreciated it if you could support us.

Thanks

Koji

over 11 years ago

0 Brian Berner over 11 years ago

TI__Mastermind 30310 points

Based on the datasheet, the switches inside the PCA9306 should be able to pass through a bandwidth of 2.5MHz without signal degradation.

When you are selecting pull-up resistors, though, you may want to choose a strong pull-up resistor on the master side of the PCA9306 to ensure the rise time is sufficiently fast.

0 Brian Berner over 11 years ago in reply to Brian Berner

TI__Mastermind 30310 points

Also, make sure that VREF1 = 1.8 V and VREF2 is pulled up to 3.3 V through a 200kOhm resistor, as in the application circuits on pages 7 and 8 of the datasheet.

0 HORI KOJI over 11 years ago in reply to Brian Berner

Intellectual 570 points

Dear Brian san

Thank you very much for your prompt reply.

I really appreciate your support.

Thanks

Koji

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PCA9306 support signal level