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Quectel BG95 Series User Manual

Quectel BG95 Series
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LPWA Module Series
BG95 Hardware Design
BG95_Hardware_Design 38 / 80
The power-down scenario is illustrated in the following figure.
VBA T
PWRKEY
TBD
650ms~150 0ms
RUNNING
Power-down procedure
OFF
Module
Status
STATUS
V
IL
0.45V
Figure 9: Timing of Turning off Module
3.6.2.2. Turn off Module Using AT Command
It is also a safe way to use AT+QPOWD command to turn off the module, which is similar to turning off the
module via PWRKEY pin.
Please refer to document [2] for details about AT+QPOWD
command.
3.7. Reset the Module
RESET_N is used to reset the module and will be supported in the next hardware design version. The
module can be reset by driving RESET_N to a low level voltage for a duration between 2s and 3.8s.
Table 9: Pin Definition of RESET_N
The reset scenario is illustrated in the following figure.
Pin Name Pin No. Description DC Characteristics Comment
RESET_N 17 Reset the module V
IL
max=0.45V
RESET_N will be supported in
the next hardware design
version.

Table of Contents

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Quectel BG95 Series Specifications

General IconGeneral
Form FactorLGA
Dimensions23.6 mm × 19.9 mm × 2.2 mm
Operating Temperature-40°C to +85°C
Storage Temperature-45°C to +90°C
GNSSGPS/GLONASS/BeiDou/Galileo/QZSS
SIM Interface1.8V/3.0V
LTE-FDD BandsB1/B2/B3/B4/B5/B8/B12/B13/B18/B19/B20/B26/B28
LTE-TDD BandsB39
Data rates LTE Cat NB2Uplink: 127 kbps, Downlink: 158.5 kbps
Data rates EGPRSUp to 296 kbps DL / 236.8 kbps UL
ProtocolsTCP/UDP/HTTP/HTTPS/MQTT/LWM2M/CoAP
InterfacesUART
CertificationsCE/FCC/PTCRB/IC/NCC/RCM/CCC

Summary

Introduction

Safety Information

Crucial safety precautions for operation, service, and repair.

FCC Certification Requirements

Details FCC rules for mobile devices, exposure, and labeling.

Product Concept

General Description

Overview of the BG95 series module and its capabilities.

Key Features

Details the main features and specifications of BG95 series modules.

Functional Diagram

Illustrates the BG95 module's major functional parts in a block diagram.

Evaluation Board

Information on Quectel's evaluation board for BG95 development.

Application Interfaces

Pin Assignment

Shows the pin configuration and numbering of the BG95 module.

Pin Description

Defines the I/O parameters and provides detailed pin descriptions.

Operating Modes

Summarizes the various operating modes of the BG95 module.

Power Saving

Details Airplane Mode, PSM, e-I-DRX, and Sleep Mode features.

Power Supply

Details VBAT pins, voltage domains, and voltage drop mitigation.

Turn on and off Scenarios

Describes procedures for turning the module on and off via PWRKEY or AT commands.

Reset the Module

Explains how to reset the BG95 module using the RESET_N pin.

(U)SIM Interface

Details the (U)SIM interface circuitry and pin definitions.

USB Interface

Describes the USB 2.0 interface for communication and firmware upgrades.

UART Interfaces

Details the Main, Debug, and GNSS UART interfaces and their pin definitions.

PCM and I2C Interfaces

Describes the PCM and I2C interfaces for audio codec applications.

Network Status Indication

Explains the NETLIGHT pin for indicating network activity status.

STATUS Pin

Describes the STATUS pin for indicating the module's operation status.

Behaviors of RI

Details the behavior of the RI pin for unsolicited result codes (URCs).

USB_BOOT Interface

Describes the USB_BOOT pin for forcing the module into emergency download mode.

ADC Interfaces

Details the two ADC interfaces and their voltage range and resolution.

GPIO Interfaces

Describes the six general-purpose input/output (GPIO) interfaces.

GNSS Receiver

General Description

Overview of the integrated global navigation satellite system solution.

GNSS Performance

Shows GNSS performance metrics like sensitivity and TTFF.

Layout Guidelines

Provides guidelines for PCB layout related to GNSS traces and antennas.

Antenna Interfaces

Main Antenna Interface

Details the main antenna interface pin and operating frequencies.

RF Antenna Interface Design

Shows reference designs for the main antenna pad and π-type matching circuits.

RF Layout Design

Details microstrip and coplanar waveguide line designs for RF layout.

GNSS Antenna Interface

Defines the GNSS antenna interface pin and frequency specifications.

Antenna Installation

Outlines requirements for main and GNSS antennas.

RF Connector for Antenna Installation

Recommends U.FL-R-SMT connector and shows its dimensions.

Electrical, Reliability and Radio Characteristics

Absolute Maximum Ratings

Lists absolute maximum ratings for power supply and voltage pins.

Power Supply Ratings

Details the power supply ratings for different BG95 models.

Operation and Storage Temperatures

Specifies the operating and storage temperature ranges for the module.

RF Output Power

Shows the RF output power for various frequency bands and modulation schemes.

RF Receiving Sensitivity

Lists the conducted RF receiving sensitivity for LTE and GSM bands.

Electrostatic Discharge

Highlights ESD handling precautions and discharge characteristics.

Mechanical Dimensions

Mechanical Dimensions of the Module

Provides the top and side dimensions of the BG95 module.

Recommended Footprint

Shows the recommended footprint for mounting the BG95 module on a PCB.

Design Effect Drawings

Displays top and bottom views of the BG95 module.

Storage, Manufacturing and Packaging

Storage

Details storage restrictions, shelf life, and handling for the BG95 module.

Manufacturing and Soldering

Describes recommended reflow soldering thermal profiles and parameters.

Packaging

Shows tape dimensions and reel packaging details for the BG95 module.

Appendix A References

Related Documents

Lists related documents for further information on BG95.

Appendix B GPRS Coding Schemes

Description of Different Coding Schemes

Details GPRS coding schemes like CS-1, CS-2, CS-3, CS-4.

Appendix C GPRS Multi-slot Classes

GPRS Multi-slot Classes

Describes different GPRS multi-slot classes and their slot configurations.

Appendix D EDGE Modulation and Coding Schemes

EDGE Modulation and Coding Schemes

Details EDGE modulation and coding schemes.

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