NXP Semiconductors
UM10935
PN7150 NFC Controller SBC Kit User Manual
UM10935
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User manual
COMPANY PUBLIC
Rev. 1.5 — 10 July 2019
348015
16 of 25
5.2 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 underlayer 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
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