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Dmitriy Dmitriy
Dmitriy Dmitriy
Associate II
August 8, 2019
Question

Low pass filter for STM32WB55Vx

  • August 8, 2019
  • 4 replies
  • 1012 views

The MLPF-WB55-01E3 filter is especially for STM32WB55Cx and STM32WB55Rx. Are there differences STM32WB55Cx, STM32WB55Rx and STM32WB55Vx (WLCSP 100L DIE 495 PITCH 0.4 ) of RF pins impedance? Can I use MLPF-WB55-01E3 for STM32WB55Vx?

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4 replies

Remi QUINTIN
Remi QUINTIN
Technical Moderator
August 8, 2019

Effectively, the RF output impedance for the STM32WB55Cx/STM32WB55Rx devices is different from the one for the STM32WB55Vx.

So, another filter for the STM32WB55Vx with the reference MLPF-WB55-02E3 will be available in a few weeks.

Dmitriy Dmitriy
Dmitriy DmitriyAuthor
Associate II
August 8, 2019

Will it have same pIn-out and package as the MLPF-WB55-01E3?

Remi QUINTIN
Remi QUINTIN
Technical Moderator
August 9, 2019

Yes, it is the same package and the same land pattern for the PCB assembly, only the RF measurements are slightly different.

The datasheet will be available in a few weeks.

Dmitriy Dmitriy
Dmitriy DmitriyAuthor
Associate II
August 9, 2019

Thank you very much!

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