N20B Introduction
Overview
N20B is a small, high performance and reliable assisted GNSS module. This is an independent SMT GNSS module based on MTK high sensitivity navigation engine. It has tiny package and extremely low power consumption, makes it easier to be applied to power sensitive devices.
Feature
General Features
Support EPO™ orbit prediction
Support EASY™ self-generated orbit prediction
Support GPS/Galileo/Glonass/BD2
Support SBAS ranging
WAAS, EGNOS, GAGAN, MSAS
Built-in LNA
Dimensions
16*12.2*2.5 mm
Weight
<1 g
Operation temperature
-40℃~+85 ℃
Specifications
Power supply
+2.8V ~4.3V
Backup power
+2.0V ~4.3V
Power consumption
Acquisition: 25mA
Tracking: 22mA
Sleep: 340μA
Backup: 14μA
Tracking: 22mA
Sleep: 340μA
Backup: 14μA
Antenna type
Active and Passive
Antenna power
External
Interfaces
Serial interfaces
UART
Digital I/O
PPS
INT Input
GPIO
INT Input
GPIO
Protocols
NMEA
PMTK
PMTK
Performance data
Receiver type
33 tracking / 99 acquisition- channel GNSS receiver
Maximum update rate
10Hz
Sensitivity
Tracking: -165 dBm
Reacquisition: -160 dBm
Cold starts: -148 dBm
Reacquisition: -160 dBm
Cold starts: -148 dBm
Time-To-First-Fix
Cold starts: 25s (typical)
Warm starts: 23s
Hot starts: <1s
EPO Assist: 15s (CTTFF)
Warm starts: 23s
Hot starts: <1s
EPO Assist: 15s (CTTFF)
Accuracy
Automatic Position: 2.5m CEP
Speed: 0.1m/s
Speed: 0.1m/s
