TCA9617A: Bidirectional Levelshifter for MIPI RFFE?

Marks Greulich

Part Number: TCA9617A
Other Parts Discussed in Thread: TXU0101

Tool/software:

Hi guys,

is there anything to use to shift the level (e.g. 5V to 1.8V) for a MIPI RFFE interface which is bidirectional? Speed doesnt matter.

Cheers,

Marks

8 months ago

0 Clemens Ladisch 8 months ago

Guru 303040 points

The TCA9617A (or any other I²C level shifter) can be used for any bidirectional open-drain signals. As far as I can see, SCLK and SDATA have pull-downs at the master, so they are not compatible with open-drain signals.

The SCLK signal is unidirectional, so you could use the TXU0101. But I think that there is not any integrated translator that can handle SDATA.

0 Marks Greulich 8 months ago in reply to Clemens Ladisch

Intellectual 540 points

Alright - I was afraid that there is nothing what makes it more comfortable. So just grad an IC (like the SN74LVC8T245QPWRQ1) where I manually change the direction of that levelshifter for SDATA...

0 Michael Ikwuyum 8 months ago in reply to Marks Greulich

TI__Mastermind 40335 points

Hi Marks,

Yes, that works, thanks.

Best Regards,

Michael.

Interface

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TCA9617A: Bidirectional Levelshifter for MIPI RFFE?