Quectel EC200A Series User Manual

LTE Standard Module Series
3.2.2.1. USB Application with USB Suspend/Resume and RI Function
If the host supports USB Suspend/Resume, but does not support remote wakeup function, the MAIN_RI
signal is needed to wake up the host.
There are three preconditions to let the module enter sleep mode.
⚫ Execute AT+QSCLK=1 to enable the sleep mode.
⚫ Ensure the MAIN_DTR is held at high level or keep it open.
⚫ The host’s USB bus, which is connected with the module’s USB interface, enters Suspend state.
The following figure shows the connection between the module and the host.
USB_VBUS
USB_DP
USB_DM
AP_READY
VDD
USB_DP
USB_DM
GPIO
Module Host
GND
GND
MAIN_RI
EINT
Figure 4: Sleep Mode Application with MAIN_RI
⚫ Sending data to EC200A series through USB will wake up the module.
⚫ When EC200A series has a URC to report, the URC will trigger the behavior of MAIN_RI pin. Please
refer to Chapter 4.9 for details about MAIN_RI behavior.
3.2.2.2. USB Application without USB Suspend Function
If the host does not support USB Suspend function, please disconnect USB_VBUS with additional control
circuit to let the module enter into sleep mode.
⚫ Execute AT+QSCLK=1 command to enable the sleep mode.
⚫ Ensure the MAIN_DTR is held at high level or keep it open.
⚫ Disconnect USB_VBUS.

Quectel EC200A Series Specifications

General

Category	Control Unit
Form Factor	LCC
Network Technology	LTE, UMTS, GSM
GSM Bands	850/900/1800/1900 MHz
GNSS	GPS/GLONASS/BeiDou/Galileo/QZSS
Dimensions	29.0mm × 29.0mm × 2.4mm
Operating Temperature	-40°C to +85°C
Storage Temperature	-45°C to +90°C
UMTS Bands	B1/B5/B8
GSM Data Rate	Up to 85.6 kbps
Voice	VoLTE
Interface	UART, USB, I2C, GPIO
SIM Interface	1.8V/3V
Supply Voltage	3.3V to 4.3V
Power Consumption	TBD
Certifications	CE, FCC, GCF, PTCRB
Module Type	LTE Cat 1 Module
LTE Bands	B1/B3/B5/B8
LTE Data Rate	10 Mbps (DL), 5 Mbps (UL)

Summary

Safety Information

About the Document

Revision History

Lists changes made to the document over versions.

Introduction

Special Marks

Explains special symbols used in the document for functions, features, or pins.

Product Overview

Key Features

Lists essential features of the EC200A module across various interfaces like USB, SIM, Audio.

Pin Assignment

Illustrates the physical pin layout and assignment of the EC200A module.

Pin Description

Provides DC characteristics and detailed descriptions for each module pin.

Evaluation Board (EVB)

Information and usage of the Evaluation Board (EVB) for module development.

Operating Characteristics

Operating Modes

Outlines the different operational states of the module, including Idle, Sleep, and Power Down.

Sleep Mode

Details power saving procedures, UART and USB application conditions for sleep mode.

Airplane Mode

Describes how to enable and configure airplane mode, disabling RF functions.

Power Supply

Power Supply Pins

Details the VBAT and VDD_EXT power supply pins and their functions.

Power Supply Reference Design

Provides a reference design for the module's power supply, including component recommendations.

Module Control

Turn On Module

Explains how to power on the module using the PWRKEY pin or button.

Turn Off Module

Describes procedures to power down the module via PWRKEY or AT command.

Reset Module

Explains how to reset the module using the RESET_N pin with circuit examples.

Application Interfaces

USB Interface

Details the USB 2.0 interface, its functions, and pin definitions.

USB_BOOT Interface

Describes the USB_BOOT pin for initiating emergency download mode.

(U)SIM Interface

Covers the (U)SIM interface requirements, pin definitions, and hot-plug detection.

PCM and I2C Interface

Details the PCM audio interface and I2C interface capabilities with reference designs.

UART Interface

Explains the main and debug UART interfaces, baud rates, and flow control.

SDIO Interface

Details the SDIO interface supporting SD 3.0 protocol with pin definitions.

ADC Interface

Describes the two Analog-to-Digital Converter (ADC) interfaces and how to read values.

Indication Signals

Defines pins for network status (NET_MODE, NET_STATUS) and activity indication.

Network Status Indication

Explains how NET_MODE and NET_STATUS pins indicate network registration and activity status.

Status Pin Behavior

Describes the behavior of the STATUS pin for module operation indication.

RF Specifications

Antenna Interface & Frequency Bands

Defines antenna interfaces and lists frequency bands supported by EC200A variants.

Tx Power

Shows the RF output power for different frequencies and communication modes.

Rx Sensitivity

Lists the conducted RF receiving sensitivity for EC200A variants across different bands.

Antenna Interface Reference Design

Provides a reference circuit for connecting main and diversity antennas.

RF Routing Reference Design

Details PCB layout guidelines for RF traces to maintain 50 Ω impedance.

Antenna Design Requirements

Specifies key requirements for antenna design, including VSWR and efficiency.

RF Connector Recommendation

Recommends the U.FL-R-SMT connector for antenna connection.

Electrical Characteristics and Reliability

Absolute Maximum Ratings

Lists the absolute maximum ratings for power supply and voltage on module pins.

Power Supply Ratings

Specifies the module's power supply ratings for VBAT and USB_VBUS inputs.

Power Consumption

Details the power consumption of the module in various states, modes, and data transfer scenarios.

Digital I/O Characteristics

Defines the voltage requirements for 1.8 V and (U)SIM digital interfaces.

ESD Characteristics

Lists electrostatics discharge characteristics for module pins and interfaces.

Operating and Storage Temperatures

Specifies the operating and storage temperature ranges for the module, including extended ranges.

Mechanical Information

Mechanical Dimensions

Shows the physical dimensions of the EC200A module in millimeters, with tolerances.

Recommended Footprint

Provides the recommended PCB footprint layout for mounting the module.

Top and Bottom Views

Displays renderings of the module's top and bottom views for identification.

Storage, Manufacturing and Packaging

Storage Conditions

Details recommended storage conditions, shelf life, and floor life for module integrity.

Manufacturing and Soldering

Provides guidelines for solder paste application, reflow temperature, and soldering processes.

Carrier Tape Dimension

Shows dimension details for the carrier tape used in module packaging.

Plastic Reel Dimension

Details the dimensions of the plastic reel used for holding carrier tape.

Packaging Process

Illustrates the step-by-step process for packaging modules into reels, bags, and boxes.

Appendix References

Related Documents

Lists related documents such as user guides and application notes for further reference.

Terms and Abbreviations

Defines common technical terms and abbreviations used throughout the manual.

Warnings and Compliance

End Product Labeling

Provides guidance on FCC ID labeling requirements for the final product integrating the module.

FCC Interference Statement

States FCC compliance rules, interference limits, and user guidance for radio devices.

Radiation Exposure Statement

Outlines FCC limits for RF output power and human exposure, including antenna gain limits.