NXP Semiconductors PN7462 series User Manual page 33

NXP Semiconductors
6.1.1 Microcontroller supply
In order to use the PN7462 family as microcontroller with host interface following
voltages (minimum requirements) need to be supplied:
• VBUS
• PVDD_IN (if PVDD_OUT is not used, it needs to be shorted to GND)
• DVDD pin must be connected to VDD and buffered with 1 µF capacitor to GND
The SPI/ I²C master interface requires additional supply:
• PVDD_M_IN
Fig 10
blocks (DVDD). The host interface pads are supplied using PVDD_IN and master
interface pads are supplied using PVDD_M_IN. The pads can be supplied using an
internal LDO, or using an external supply. The internal LDO requires that VBUS > 4 V.
When PVDD_LDO is used, the maximum total current available from PVDD_OUT for the
pads supply is 30 mA.
When an external source is used for PVDD_IN and PVDD_IN_M, PVDD_OUT must be
connected to the ground with a ground resistance of less than 10 Ω.
UM10858
User manual
COMPANY PUBLIC
shows the power supply of the chip (VBUS), including the supply of the digital
All information provided in this document is subject to legal disclaimers.
Rev. 1.4 — 14 May 2018
314514
UM10858
PN7462 family HW user manual
© NXP B.V. 2018. All rights reserved.
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