NORA-W36 series - System integration manual
UBX-22021120 - R01
Module integration
Page 8 of 48
C1-Public
2
Module integration
NORA-W36 must be integrated together with a host CPU system, as shown in
Figure 2: NORA-W36 integration in host system
The module is controlled by the host CPU using the
nRESET
and UART signals. The power supply is
sourced from the
VCC
and
VIO
pins.
Observe these design considerations when integrating the module with the host system:
•
If not used in the host board design, test points for LEDs, switches, and GPIO signals should be
considered in the integration.
•
NORA-W361 supports U.FL connector pads for use with an external antenna, which is mandatory
if the application is hosted in a metal enclosure.
•
NORA-W366 has an integrated antenna and is suitable for products mounted in a plastic housing.
2.1
Power management
2.1.1
System supply (VDD) and digital I/O reference
NORA-W36 has a single power supply input,
VDD
, which is also the I/O voltage reference. The nominal
voltage is 3.3 VDC ±10%.
2.1.2
Power supply configuration
NORA-W3 can be configured for operating the MCU cores with a switch mode power supply (SMPS),
standby power supply (SPS). SPS is the default configuration. LDO configuration is selected by
changing the strapping, but this is not recommended for normal operation.
