User's Manual

SCMB100 User Manual Rev 1.2
PRIVATE AND CONFIDENTIAL
© 2020 SmartSense by Digi. All Rights Reserved.
Page 6
Description
Symbol
Min.
Nom.
Max.
Units
Notes
Supply Voltage 1
VSYS1
1.8
3.3
3.6
V
Supply Voltage 2
VSYS2
1.8
3.3
3.6
V
To minimize current consumption, VSYS2
should match VSYS1
USB Voltage
VSUB
4.35
5
5.5
V
Not required for operation
Operating
Temperature
T
A
-40
+25
+85
°C
Hardware Variants
The SCMB100 is available in two variants:
• SCMB100-T – Configured to use the on-board inverted-F trace antenna
• SCMB100-E – Configured to use an external antenna attached via the u.fl connector
Radio Operation
The SCMB100 module has been certified using the GFSK modulation scheme employed by Bluetooth
Low Energy devices. The transmitter may use both 1Mbit/s and 2Mbit/s modulation rates. The
transmitter is not subject to any duty cycle restrictions. The output power from the transmitter must be
limited (via software) to -4dBm to remain in compliance with FCC and IC regulations. The RF power
amplifier may be enabled or disabled based on the user’s application.
This device is approved to work with either 1) the on-board inverted-F PCB trace antenna or, 2) an
external isolated magnet dipole antenna having a maximum gain of 2.5dBi.
Regulator Notices
Changes or modifications could void the user’s authority to operate the equipment.
Federal Communications Commission
The SCMB100 module complies with Part 15 of the FCC rules and regulations. Compliance with the
labeling requirements, FCC notices and antenna usage guidelines is required. To fulfill FCC Certification,
the OEM must comply with the following regulations:
1. The system integrator must ensure that the text detailed in OEM labeling requirements is
placed on the outside of the final product.
2. This device may only be used with antennas that have been tested and approved for use with
the module.
OEM labeling requirements