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MSton.1
Associate
September 20, 2022
Solved

STM32WB55V* MLPF-WB55-02E3 or MLPF-WB55-01E3 matching network for UFBGA129

Hello STM32-Team,

do i have to use the MLPF-WB55-02E3 or MLPF-WB55-01E3 matching network for UFBGA129. In the Appnote AN5165 (Table 6) the matching network MLPF-WB55-01E3 matching network is recommended, but in the Datasheet of the MLPF-WB55-01E3 its only for the STM32WB55Cx/Rx. In the MLPF-WB55-02E3 datasheet its for the STM32WB55Vx and the UFBGA129 would be the STM32WB55Vx.

So im a bit confused whats the right choice for the UFBGA129.

Thanks an Greetings,

Matthias

This topic has been closed for replies.
Remi QUINTIN
Remi QUINTINBest answer
ST Technical Moderator
October 6, 2022

MLPF-WB55-01E3 must be used for ALL the QFNxx packages for all the STM32WBxx family.

MLPF-WB55-02E3 must be used for ALL the WLCPxx and BGAxx packages for all the STM32WBxx family.

6 replies

MSton.1
MSton.1Author
Associate
October 5, 2022

Are there any updates on my question? Any additional informations needed?

Remi QUINTIN
Remi QUINTINBest answer
ST Technical Moderator
October 6, 2022

MLPF-WB55-01E3 must be used for ALL the QFNxx packages for all the STM32WBxx family.

MLPF-WB55-02E3 must be used for ALL the WLCPxx and BGAxx packages for all the STM32WBxx family.

Remi QUINTIN
ST Technical Moderator
October 6, 2022

Note that MLPF-WB55-02E3 is a bumpless version.

we now recommend to use the bump version: MPLF-WB55-02D3.

The bump version is less sensitive to board layout and offers a better rejection of harmonics.

MPLF-WB55-02D3 has also been designed for WLCSP et BGA packages and is now in production.

Due to the bumpless characteristic, the MLPF-WB55-02E3 IPD may be more sensitive to the board characteristics.

MSton.1
MSton.1Author
Associate
October 6, 2022

Hello Remi,

Thanks for the reply so it's wrong in the AN5165.

Is it MLPF-WB55-02D3 or MPLF-WB55-02D3?

Do you know when the bump version will be aviable? At the moment i can't find anything for the PN MLPF-WB55-02D3 or MPLF-WB55-02D3.

Greetings,

Matthias

Remi QUINTIN
ST Technical Moderator
October 6, 2022

It is MLPF-WB55-02D3. MLPF stands for Matched Low Pass Filter.

I have a preliminary version of the data brief of this IPD.

I need to check whether I can post it on this forum.

I will look for the PN.

Remi QUINTIN
ST Technical Moderator
October 6, 2022

If fact the PN is MLPF-WB-02D3 (55 was removed)

I join the datasheet below.