Quectel BG95 Series User Manual

LPWA Module Series
BG95 Hardware Design
BG95_Hardware_Design 52 / 80
Table 23: Characteristics of ADC Interfaces
1. ADC0 and ADC1 cannot be used simultaneously. BG95 supports using of only one ADC interface at
a time: either ADC0 or ADC1. Currently only ADC0 is enabled, and ADC1 will be enabled in the next
hardware design version.
2. ADC input voltage must not exceed 1.8V.
3. It is prohibited to supply any voltage to ADC pin when VBAT is removed.
4. It is recommended to use resistor divider circuit for ADC application, and the divider resistor accuracy
should be no less than 1%.
3.17. GPIO Interfaces
The module provides six general-purpose input and output (GPIO) interfaces. AT+QCFG=
"gpio"*
command can be used to configure corresponding GPIO pin’s status. For more details about the AT
command, please refer to document [2].
Table 24: Pin Definition of GPIO Interfaces
Parameter Min. Typ. Max. Unit
ADC0/ADC1 Voltage Range 0.3 1.8 V
ADC0/ADC1 Resolution 64.979 uV
ADC0/ADC1 Sampling Rate 4.8 MHz
Pin Name Pin No. Description
GPIO16 16 General-purpose input and output interface
GPIO25 25 General-purpose input and output interface
GPIO26 26 General purpose input and output interface
GPIO64 64 General purpose input and output interface
GPIO65 65 General purpose input and output interface
GPIO66 66 General purpose input and output interface
NOTES

Quectel BG95 Series Specifications

General

Form Factor	LGA
Dimensions	23.6 mm × 19.9 mm × 2.2 mm
Operating Temperature	-40°C to +85°C
Storage Temperature	-45°C to +90°C
GNSS	GPS/GLONASS/BeiDou/Galileo/QZSS
SIM Interface	1.8V/3.0V
LTE-FDD Bands	B1/B2/B3/B4/B5/B8/B12/B13/B18/B19/B20/B26/B28
LTE-TDD Bands	B39
Data rates LTE Cat NB2	Uplink: 127 kbps, Downlink: 158.5 kbps
Data rates EGPRS	Up to 296 kbps DL / 236.8 kbps UL
Protocols	TCP/UDP/HTTP/HTTPS/MQTT/LWM2M/CoAP
Interfaces	UART
Certifications	CE/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.