Installation Instructions

AI-NB25
NB-IoT Module
Sichuan AI-Link Technology Co.,Ltd. page 4 of 20
1. Overview
AI-NB25 is an NB-IoT module that communicates with the infrastructure of mobile network operators
through the 3GPP Rel-13 radio protocol. The core communication chip is the first NB-IoT chipset
developed by MTK. It has embedded 2MB Flash and 2MB RAM. It integrates MCU, PMU, Flash, RAM, DSP,
RF and other units. It has the characteristics of high integration and low cost.
AI-NB25 module integrates RF power amplifier PA, crystal, LDO, DC-DC, reserves eSIM card, and
reserves UART, ADC, SIM, RESET and GPIO interfaces to expand various applications. Some interfaces can
be reused to facilitate customer secondary product development.
AI-NB25 module supports work in bands B1, B2,B3,B4,B5,B12,B66,B71 and B85 . It can provide data
transmission, short message and other services, and also supports the 3GPP Rel-13 standard.
AI-NB25 module is an SMD type module with size only 18.7mm x 16.0mm x 2.5mm. There are total
54 pins. It can be embedded in various product applications through welding pad. The product size is
small and itsperipheral interface is rich.Compared with similar products, the advantage is obvious.
AI-NB25 module is the basic module for data wide communication in the field of Internet of Things. It
can provide stable and extensive communication. The application scenario is more extensive, so long as
the coverage of NB-IoT signals can support communication services.
1.1 Fundamental Performance
Projects
Information
Voltage Input
VBAT power supply voltage range: 2.1V ~ 3.63V,
typical supply voltage 3.3V
Bands
Support B1\B2\B3\B4\B5\B8\B12\B66\B71\B85
RF Power
23±2dBm
Current consumed
5uA MAX (PSM model)
Temperature range
-40°C ~ 85°C
SMS / Voice
Support SMS
SIM cards
Support only 1 set external SIM card
Antenna interface
50ohm RF impedance ( Support only 1 set external antenna)
Size
18.7mm x16.0mm x2.5mm