Datasheet

NXP Semiconductors

UM10935

PN7150 NFC Controller SBC Kit User Manual

UM10935

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User manual

COMPANY PUBLIC

Rev. 1.1 — 18 May 2016

348011

14 of 23

4.2 Using different TVDD supply option

The OM5578/PN7150S kit comes with Configuration 2: external 5V used to generate

TVDD (refer to “AN11756 – PN7150 Hardware Design Guide” for more details). The 5V

being provided by the under layer SBC platform via the VANT pin of connector TB2.

However, it is still possible to switch to Configuration 1: VBAT used to generate the

TVDD. This is done by removing R3 and placing a 0 ohm resistor in R4 place.

Then related registry setting must be applied accordingly (see “AN11756 – PN7150

Hardware Design Guide”).

Fig 18. PN7150 NFC Controller TVDD supply option

R3 and R4