NXP Semiconductors PN7462 series User Manual page 35

NXP Semiconductors
In case TVDD_OUT is used
• VUP_TX needs to be supplied.
Remark: The TVDD_OUT pin must not be left floating, and needs to be at the same
voltage as the TVDD_IN pin.
(1)
T X2
antenna
T X1
supply
PN7462 family
T VSS
(1) Using the PN7462 family´s TXLDO
(2) Without using PN7462 family´s TXLDO
The capacitance value must be chosen so that the capacitance value is correct at 5 V
Fig 11. Powering the contactless interface – using a single power supply
UM10858
User manual
COMPANY PUBLIC
VBUS
PN7462 family
supply
470 nF
VUP_T X
T VDD_OUT
T VDD_IN
6.8 µF
All information provided in this document is subject to legal disclaimers.
Rev. 1.4 — 14 May 2018
314514
PN7462 family HW user manual
(2)
T X2
antenna
T X1
supply
PN7462 family
T VSS
UM10858
VBUS
PN7462 family
supply
470 nF
VUP_T X
T VDD_OUT
T VDD_IN
6.8 µF
aaa-021 143
© NXP B.V. 2018. All rights reserved.
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