User's Manual

© 2017 M-Labs Technologies LLC
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Power and Battery
The battery monitor is internal analog input scaled such that the DC value of the power input
pin to the LTE-V system is measured. This value is scaled to span the most significant 8 bits of
the A/D and consequently covers a scale from 0 to 25.5 Volts.
Timers
Timers resident on the baseband chip generate periodic interrupts for power down wakeup,
watchdog support, periodic report generation and other timer related functions.
Watchdog
SQN3223 chipset provides internal software Watchdog. Also the LTE-V includes an MCU that
acts as a failsafe external watchdog. The MCU power cycles the system, if no activity is
detected for 1 hour.
Accelerometer
The accelerometer can be used for motion detection and driver behavior monitoring.
2.2 Basic RF Performance
Items Requirements
Remark
TRP free space B4/B13: >= 20 dBm TRP free space
TIS free space
Main: <= -91dBm
Div: <= -88dBm
TIS free space
Antenna loss <= -3dB TRP-TX Power Conducted
Antenna Loss <= -3dB
RX receive sensitivity conducted
– TIS
Board RF Specification
LTE_B4 RX
B4 Frequency range
2110-2155MHZ
Sensitivity -99.5dBm (10MHZ_50RB_Downlink)
Dynamic range
-23～-99.5dBm
LTE_B4 TX
B4 Frequency range
1710MHz～1755MHz
Maximum Frequency error ±10Hz
Maximum output power
23dBm
Minimum control output power
<-40dBm
ACLR
UTRA2: 46.48 UTRA1: 41.21 E-UTRA1:39.23
UTRA2: 43.87 UTRA1: 40.51 E-UTRA2:38.05
OBW
8.87MHZ (10MHZ Nominal)
IQ OFFSET
< -55.6dbc