Quectel Wireless Solutions 201909EG95NAX Users Manual

EG95 Hardware Design

LTE Standard Module Series

Rev. EG95_Hardware_Design_V1.5
Date: 2019-08-09
Status: Released

www.quectel.com

LTE Standard Module Series

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Copyright © Quectel Wireless Solutions Co., Ltd. 2019. All rights reserved.

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About the Document

History

Revision

Date

Author

Description

1.0

2017-03-22

Felix YIN/
Yeoman CHEN/
Jackie WANG

Initial

1.1

2018-01-04

Yeoman CHEN/
Rex WANG

1. Added band B28A.

2. Updated the description of UMTS and GSM
features in Table 2.

3. Updated the functional diagram in Figure 1.

4. Updated module operating frequencies in
Table 21.

5. Updated current consumption in Table 26.

6. Updated the conducted RF receiving
sensitivity in Table 28.

7. Updated the GPRS multi-slot classes in
Table 33.

8. Added thermal consideration in Chapter 5.8

9. Added a GND pad in each of the four corners
of the module’s footprint in Chapter 6.2.

10. Added packaging information in Chapter 7.3.

1.2

2018-03-14

Felix YIN/
Rex WANG

1. Added the description of EG95-NA.

2. Updated the functional diagram in Figure 1.

3. Updated pin assignment in Figure 2.

4. Updated GNSS function in Table 1.

5. Updated GNSS Features in Table 2.

6. Updated reference circuit of USB interface

in Figure 21.

7. Added description of GNSS receiver in

Chapter 4.

8. Updated pin definition of RF antenna in

Table 21.

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9. Updated module operating frequencies in

Table 22.

10. Added description of GNSS antenna

interface in Chapter 5.2.

11. Updated antenna requirements in Table 25.

12. Updated RF output power in Table 32.

1.3

2019-05-24

Ward WANG/
Nathan LIU/
Rex WANG

1. Added variant EG95-EX and related

information.

2. Updated functional diagram in Figure 1.

3. Updated pin assignment (top view) in

Figure 2.

4. Updated pin description in Table 4.

5. Updated star structure of power supply in

Figure 8.

6. Updated the reference circuit of turning on

the module using PWRKEY in Figure 10.

7. Updated the power-on scenario in Figure

12.

8. Updated reference circuit of SPI interface

with peripherals in Figure 25.

9. Updated GNSS performance in Table 20.

10. Updated module operating frequencies in

Table 22.

11. Updated GNSS frequency in Table 24.

12. Updated antenna requirements in Table 25.

13. Updated EG95-NA current consumption in

Table 30.

14. Adeed EG95-EX current consumption in

Table 31.

15. Updated EG95-E conducted RF receiving

sensitivity in Table 34.

16. Updated EG95-NA conducted RF receiving

sensitivity in Table 35.

17. Added EG95-EX conducted RF receiving

sensitivity in Table 36.Updated GNSS

current consumption of EG95 in Table

32.Updated related documents in Table

38.Updated reference circuit of PWRKEY

interface in Figure 10.

18. Updated description of (U)SIM in Chapter

3.9.

19. Updated description of UART in Chapter

3.11.

20. Added description of ADC interface in

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Chapter 3.16.

21. Added description of USB_BOOT interface

in Chapter 3.18.

22. Updated description of manufacturing and

soldering in Chapter 8.2.

1.4

2019-07-05

Ward WANG

1. Updated supported protocols (Table 2).

2. Updated timing of turning on module (Figure

12).

3. DFOTA is developed.

4. Updated description of USB_BOOT

interface and timing sequence for entering

emergency download mode (Chapter 3.18

and Figure 29).

1.5

2019-08-09

Fanny CHEN/
Rex WANG

1. Added ThreadX module EG95-NAX and

updated related contents (Table 1 and 4,

Chapter 2.2, 2.3, 3.2 and 5).

2. Updated module operating frequencies
(Table 25).

3. Updated antenna requirements (Table 28).

4. Added current consumption of EG95-NAX
(Table 35).

5. Updated RF output power (Table 37).

6. Updated EG95-NA conducted RF receiving
sensitivity (Table 39).

7. Added EG95-NAX conducted RF receiving
sensitivity (Table 41).

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Contents

About the Document ..................................................................................................................................... 2

Contents.......................................................................................................................................................... 5

Table Index ..................................................................................................................................................... 7

Figure Index.................................................................................................................................................... 9

1 Introduction........................................................................................................................................... 11

1.1. Safety Information...................................................................................................................... 12

2 Product Concept .................................................................................................................................. 13

2.1. General Description ................................................................................................................... 13

2.2. Key Features.............................................................................................................................. 14

2.3. Functional Diagram ................................................................................................................... 17

2.4. Evaluation Board ....................................................................................................................... 18

3 Application Interfaces.......................................................................................................................... 19

3.1. General Description ................................................................................................................... 19

3.2. Pin Assignment .......................................................................................................................... 20

3.3. Pin Description ........................................................................................................................... 21

3.4. Operating Modes ....................................................................................................................... 28

3.5. Power Saving ............................................................................................................................. 29

3.5.1. Sleep Mode ...................................................................................................................... 29

3.5.1.1. UART Application ................................................................................................... 29

3.5.1.2. USB Application with USB Remote Wakeup Function ......................................... 30

3.5.1.3. USB Application with USB Suspend/Resume and RI Function ........................... 30

3.5.1.4. USB Application without USB Suspend Function ................................................. 31

3.5.2. Airplane Mode .................................................................................................................. 32

3.6. Power Supply ............................................................................................................................. 32

3.6.1. Power Supply Pins ........................................................................................................... 32

3.6.2. Decrease Voltage Drop .................................................................................................... 33

3.6.3. Reference Design for Power Supply ............................................................................... 34

3.6.4. Monitor the Power Supply................................................................................................ 35

3.7. Power-on/off Scenarios ............................................................................................................. 35

3.7.1. Turn on Module Using the PWRKEY .............................................................................. 35

3.7.2. Turn off Module ................................................................................................................ 37

3.7.2.1. Turn off Module Using the PWRKEY Pin .............................................................. 37

3.7.2.2. Turn off Module Using AT Command .................................................................... 37

3.8. Reset the Module....................................................................................................................... 38

3.9. (U)SIM Interfaces....................................................................................................................... 39

3.10. USB Interface............................................................................................................................. 42

3.11. UART Interfaces ........................................................................................................................ 43

3.12. PCM and I2C Interfaces ............................................................................................................ 46

3.13. SPI Interface .............................................................................................................................. 48

3.14. Network Status Indication.......................................................................................................... 49

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3.15. STATUS...................................................................................................................................... 50

3.16. ADC Interface ............................................................................................................................ 51

3.17. Behaviors of RI .......................................................................................................................... 51

3.18. USB_BOOT Interface ................................................................................................................ 52

4 GNSS Receiver ..................................................................................................................................... 54

4.1. General Description ................................................................................................................... 54

4.2. GNSS Performance ................................................................................................................... 54

4.3. Layout Guidelines ...................................................................................................................... 55

5 Antenna Interfaces ............................................................................................................................... 56

5.1. Main/Rx-diversity Antenna Interfaces ....................................................................................... 56

5.1.1. Pin Definition .................................................................................................................... 56

5.1.2. Operating Frequency ....................................................................................................... 56

5.1.3. Reference Design of RF Antenna Interface .................................................................... 57

5.1.4. Reference Design of RF Layout ...................................................................................... 58

5.2. GNSS Antenna Interface ........................................................................................................... 60

5.3. Antenna Installation ................................................................................................................... 61

5.3.1. Antenna Requirement ...................................................................................................... 61

5.3.2. Recommended RF Connector for Antenna Installation .................................................. 62

6 Electrical, Reliability and Radio Characteristics ............................................................................. 64

6.1. Absolute Maximum Ratings....................................................................................................... 64

6.2. Power Supply Ratings ............................................................................................................... 64

6.3. Operation and Storage Temperatures....................................................................................... 65

6.4. Current Consumption ................................................................................................................ 66

6.5. RF Output Power ....................................................................................................................... 72

6.6. RF Receiving Sensitivity ............................................................................................................ 73

6.7. Electrostatic Discharge .............................................................................................................. 75

6.8. Thermal Consideration .............................................................................................................. 76

7 Mechanical Dimensions ...................................................................................................................... 78

7.1. Mechanical Dimensions of the Module ..................................................................................... 78

7.2. Recommended Footprint ........................................................................................................... 80

7.3. Top and Bottom Views of the Module ....................................................................................... 81

8 Storage, Manufacturing and Packaging ............................................................................................ 82

8.1. Storage....................................................................................................................................... 82

8.2. Manufacturing and Soldering .................................................................................................... 83

8.3. Packaging .................................................................................................................................. 84

9 Appendix A References ....................................................................................................................... 86

10 Appendix B GPRS Coding Schemes ................................................................................................. 90

11 Appendix C GPRS Multi-slot Classes................................................................................................ 91

12 Appendix D EDGE Modulation and Coding Schemes ..................................................................... 93

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Table Index

TABLE 1: FREQUENCY BANDS OF EG95 SERIES MODULE ...................................................................... 13

TABLE 2: KEY FEATURES OF EG95 MODULE ............................................................................................ 14

TABLE 3: IO PARAMETERS DEFINITION ..................................................................................................... 21

TABLE 4: PIN DESCRIPTION ........................................................................................................................ 21

TABLE 5: OVERVIEW OF OPERATING MODES........................................................................................... 28

TABLE 6: PIN DEFINITION OF VBAT AND GND ........................................................................................... 33

TABLE 7: PIN DEFINITION OF PWRKEY ...................................................................................................... 35

TABLE 8: PIN DEFINITION OF RESET_N ..................................................................................................... 38

TABLE 9: PIN DEFINITION OF (U)SIM INTERFACES ................................................................................... 40

TABLE 10: PIN DEFINITION OF USB INTERFACE ....................................................................................... 42

TABLE 11: PIN DEFINITION OF MAIN UART INTERFACES ................................................................ ......... 44

TABLE 12: PIN DEFINITION OF DEBUG UART INTERFACE ....................................................................... 44

TABLE 13: LOGIC LEVELS OF DIGITAL I/O .................................................................................................. 44

TABLE 14: PIN DEFINITION OF PCM AND I2C INTERFACES ..................................................................... 47

TABLE 15: PIN DEFINITION OF SPI INTERFACE ......................................................................................... 48

TABLE 16: PIN DEFINITION OF NETWORK STATUS INDICATOR ............................................................... 49

TABLE 17: WORKING STATE OF NETWORK STATUS INDICATOR ............................................................ 49

TABLE 18: PIN DEFINITION OF STATUS ...................................................................................................... 50

TABLE 19: PIN DEFINITION OF ADC INTERFACE ....................................................................................... 51

TABLE 20: CHARACTERISTICS OF ADC INTERFACE ................................................................................. 51

TABLE 21: DEFAULT BEHAVIORS OF RI...................................................................................................... 52

TABLE 22: PIN DEFINITION OF USB_BOOT INTERFACE ........................................................................... 52

TABLE 23: GNSS PERFORMANCE .............................................................................................................. 54

TABLE 24: PIN DEFINITION OF RF ANTENNA ................................ ............................................................. 56

TABLE 25: MODULE OPERATING FREQUENCIES ...................................................................................... 56

TABLE 26: PIN DEFINITION OF GNSS ANTENNA INTERFACE ................................................................... 60

TABLE 27: GNSS FREQUENCY ................................................................................................ .................... 60

TABLE 28: ANTENNA REQUIREMENTS ....................................................................................................... 61

TABLE 29: ABSOLUTE MAXIMUM RATINGS ................................................................................................ 64

TABLE 30: POWER SUPPLY RATINGS................................................................................................ ......... 64

TABLE 31: OPERATION AND STORAGE TEMPERATURES ........................................................................ 65

TABLE 32: EG95-E CURRENT CONSUMPTION ........................................................................................... 66

TABLE 33: EG95-NA CURRENT CONSUMPTION ........................................................................................ 68

TABLE 34: EG95-EX CURRENT CONSUMPTION ........................................................................................ 69

TABLE 35: EG95-NAX CURRENT CONSUMPTION ...................................................................................... 71

TABLE 36: GNSS CURRENT CONSUMPTION OF EG95 ............................................................................. 72

TABLE 37: RF OUTPUT POWER .................................................................................................................. 73

TABLE 38: EG95-E CONDUCTED RF RECEIVING SENSITIVITY ................................................................ 73

TABLE 39: EG95-NA CONDUCTED RF RECEIVING SENSITIVITY .............................................................. 74

TABLE 40: EG95-EX CONDUCTED RF RECEIVING SENSITIVITY .............................................................. 74

TABLE 41: EG95-NAX CONDUCTED RF RECEIVING SENSITIVITY ........................................................... 75

TABLE 42: ELECTROSTATIC DISCHARGE CHARACTERISTICS (25ºC, 45% RELATIVE HUMIDITY) ........ 76

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TABLE 43: RECOMMENDED THERMAL PROFILE PARAMETERS .............................................................. 83

TABLE 44: RELATED DOCUMENTS ............................................................................................................. 86

TABLE 45: TERMS AND ABBREVIATIONS ................................................................................................... 86

TABLE 46: DESCRIPTION OF DIFFERENT CODING SCHEMES ................................ ................................. 90

TABLE 47: GPRS MULTI-SLOT CLASSES .................................................................................................... 91

TABLE 48: EDGE MODULATION AND CODING SCHEMES ......................................................................... 93

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Figure Index

FIGURE 1: FUNCTIONAL DIAGRAM............................................................................................................. 17

FIGURE 2: PIN ASSIGNMENT (TOP VIEW) ................................ ................................ ................................ .. 20

FIGURE 3: SLEEP MODE APPLICATION VIA UART ..................................................................................... 29

FIGURE 4: SLEEP MODE APPLICATION WITH USB REMOTE WAKEUP ................................................... 30

FIGURE 5: SLEEP MODE APPLICATION WITH RI ....................................................................................... 31

FIGURE 6: SLEEP MODE APPLICATION WITHOUT SUSPEND FUNCTION ............................................... 31

FIGURE 7: POWER SUPPLY LIMITS DURING BURST TRANSMISSION..................................................... 33

FIGURE 8: STAR STRUCTURE OF POWER SUPPLY .................................................................................. 34

FIGURE 9: REFERENCE CIRCUIT OF POWER SUPPLY............................................................................. 34

FIGURE 10: TURN ON THE MODULE USING DRIVING CIRCUIT ............................................................... 35

FIGURE 11: TURN ON THE MODULE USING BUTTON ............................................................................... 36

FIGURE 12: TIMING OF TURNING ON MODULE ......................................................................................... 36

FIGURE 13: TIMING OF TURNING OFF MODULE ....................................................................................... 37

FIGURE 14: REFERENCE CIRCUIT OF RESET_N BY USING DRIVING CIRCUIT ...................................... 38

FIGURE 15: REFERENCE CIRCUIT OF RESET_N BY USING BUTTON ..................................................... 39

FIGURE 16: TIMING OF RESETTING MODULE ........................................................................................... 39

FIGURE 17: REFERENCE CIRCUIT OF (U)SIM INTERFACE WITH AN 8-PIN (U)SIM CARD CONNECTOR

............................................................................................................................................................... 41

FIGURE 18: REFERENCE CIRCUIT OF (U)SIM INTERFACE WITH A 6-PIN (U)SIM CARD CONNECTOR . 41

FIGURE 19: REFERENCE CIRCUIT OF USB INTERFACE........................................................................... 43

FIGURE 20: REFERENCE CIRCUIT WITH TRANSLATOR CHIP .................................................................. 45

FIGURE 21: REFERENCE CIRCUIT WITH TRANSISTOR CIRCUIT............................................................. 45

FIGURE 22: PRIMARY MODE TIMING .......................................................................................................... 46

FIGURE 23: AUXILIARY MODE TIMING ....................................................................................................... 47

FIGURE 24: REFERENCE CIRCUIT OF PCM APPLICATION WITH AUDIO CODEC ................................... 48

FIGURE 25: REFERENCE CIRCUIT OF SPI INTERFACE WITH PERIPHERALS ........................................ 49

FIGURE 26: REFERENCE CIRCUIT OF NETWORK STATUS INDICATOR .................................................. 50

FIGURE 27: REFERENCE CIRCUIT OF STATUS ......................................................................................... 50

FIGURE 28: REFERENCE CIRCUIT OF USB_BOOT INTERFACE ............................................................... 53

FIGURE 29: TIMING SEQUENCE FOR ENTERING EMERGENCY DOWNLOAD MODE ............................. 53

FIGURE 30: REFERENCE CIRCUIT OF RF ANTENNA INTERFACE ............................................................ 58

FIGURE 31: MICROSTRIP LINE DESIGN ON A 2-LAYER PCB .................................................................... 58

FIGURE 32: COPLANAR WAVEGUIDE DESIGN ON A 2-LAYER PCB.......................................................... 59

FIGURE 33: COPLANAR WAVEGUIDE DESIGN ON A 4-LAYER PCB (LAYER 3 AS REFERENCE GROUND)

............................................................................................................................................................... 59

FIGURE 34: COPLANAR WAVEGUIDE DESIGN ON A 4-LAYER PCB (LAYER 4 AS REFERENCE GROUND)

............................................................................................................................................................... 59

FIGURE 35: REFERENCE CIRCUIT OF GNSS ANTENNA ........................................................................... 61

FIGURE 36: DIMENSIONS OF THE U.FL-R-SMT CONNECTOR (UNIT: MM) ............................................... 62

FIGURE 37: MECHANICALS OF U.FL-LP CONNECTORS ........................................................................... 63

FIGURE 38: SPACE FACTOR OF MATED CONNECTOR (UNIT: MM) ................................ .......................... 63

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FIGURE 39: REFERENCED HEATSINK DESIGN (HEATSINK AT THE TOP OF THE MODULE) .................. 77

FIGURE 40: REFERENCED HEATSINK DESIGN (HEATSINK AT THE BACKSIDE OF CUSTOMERS’ PCB)

............................................................................................................................................................... 77

FIGURE 41: MODULE TOP AND SIDE DIMENSIONS................................ ................................ ................... 78

FIGURE 42: MODULE BOTTOM DIMENSIONS (TOP VIEW)........................................................................ 79

FIGURE 43: RECOMMENDED FOOTPRINT (TOP VIEW) ............................................................................ 80

FIGURE 44: TOP VIEW OF THE MODULE ................................................................................................... 81

FIGURE 45: BOTTOM VIEW OF THE MODULE ........................................................................................... 81

FIGURE 46: REFLOW SOLDERING THERMAL PROFILE ............................................................................ 83

FIGURE 47: TAPE DIMENSIONS .................................................................................................................. 84

FIGURE 48: REEL DIMENSIONS .................................................................................................................. 85

FIGURE 49: TAPE AND REEL DIRECTIONS ................................................................................................ 85

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1 Introduction

This document defines the EG95 module and describes its air interface and hardware interface which are

connected with customers’ applications.

This document can help customers quickly understand module interface specifications, electrical and

mechanical details, as well as other related information of EG95 module. Associated with application note

and user guide, customers can use EG95 module to design and set up mobile applications easily.

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1.1. Safety Information

The following safety precautions must be observed during all phases of operation, such as usage, service
or repair of any cellular terminal or mobile incorporating EG95 module. Manufacturers of the cellular
terminal should send the following safety information to users and operating personnel, and incorporate
these guidelines into all manuals supplied with the product. If not so, Quectel assumes no liability for
customers’ failure to comply with these precautions.

Full attention must be given to driving at all times in order to reduce the risk of an

accident. Using a mobile while driving (even with a handsfree kit) causes

distraction and can lead to an accident. Please comply with laws and regulations
restricting the use of wireless devices while driving.

Switch off the cellular terminal or mobile before boarding an aircraft. The operation
of wireless appliances in an aircraft is forbidden to prevent interference with
communication systems. If the device offers an Airplane Mode, then it should be
enabled prior to boarding an aircraft. Please consult the airline staff for more
restrictions on the use of wireless devices on boarding the aircraft.

Wireless devices may cause interference on sensitive medical equipment, so
please be aware of the restrictions on the use of wireless devices when in
hospitals, clinics or other healthcare facilities.

Cellular terminals or mobiles operating over radio signals and cellular network
cannot be guaranteed to connect in all possible conditions (for example, with
unpaid bills or with an invalid (U)SIM card). When emergent help is needed in such
conditions, please remember using emergency call. In order to make or receive a
call, the cellular terminal or mobile must be switched on in a service area with
adequate cellular signal strength.

The cellular terminal or mobile contains a transmitter and receiver. When it is ON, it
receives and transmits radio frequency signals. RF interference can occur if it is
used close to TV set, radio, computer or other electric equipment.

In locations with potentially explosive atmospheres, obey all posted signs to turn
off wireless devices such as your phone or other cellular terminals. Areas with
potentially explosive atmospheres include fuelling areas, below decks on boats,
fuel or chemical transfer or storage facilities, areas where the air contains
chemicals or particles such as grain, dust or metal powders, etc.

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2 Product Concept

2.1. General Description

EG95 module is an embedded 4G wireless communication module with receive diversity. It supports
LTE-FDD/WCDMA/GSM wireless communication, and provides data connectivity on LTE-FDD,

DC-HSDPA, HSPA+, HSDPA, HSUPA, WCDMA, EDGE and GPRS networks. It can also provide voice
functionality 1) to meet customers’ specific application demands. EG95 contains 4 variants: EG95-E,
EG95-NA, EG95-EX 2) and EG95-NAX 2). The following table shows the frequency bands of EG95 series
module.

Table 1: Frequency Bands of EG95 Series Module

1.

1)

EG95 contains Telematics version and Data-only version. Telematics version supports voice and

data functions, while Data-only version only supports data function.

2.

2)

EG95-EX and EG95-NAX are based on ThreadX modules.

3.

3)

GNSS function is optional.

Module

LTE Bands
(with Rx-diversity)

WCDMA

(with Rx-diversity)

GSM

GNSS

2)

EG95-E

FDD:

B1/B3/B7/B8/B20/B28A

B1/B8

900/1800MHz

Not supported

EG95-NA

FDD:
B2/B4/B5/B12/B13

B2/B4/B5

Not supported

GPS, GLONASS,
BeiDou/Compass,
Galileo, QZSS

EG95-EX 2)

FDD:

B1/B3/B7/B8/B20/B28

B1/B8

900/1800MHz

GPS, GLONASS,
BeiDou/Compass,
Galileo, QZSS

EG95-NAX 2)

FDD:

B2/B4/B5/B12/B13/B25/

B26

B2/B4/B5

Not supported

GPS, GLONASS,

BeiDou/Compass,

Galileo, QZSS

NOTES

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With a compact profile of 29.0mm × 25.0mm × 2.3mm, EG95 can meet almost all requirements for M2M
applications such as automotive, smart metering, tracking system, security, router, wireless POS, mobile
computing device, PDA phone, tablet PC, etc.

EG95 is an SMD type module which can be embedded into applications through its 106 LGA pads.

EG95 is integrated with internet service protocols like TCP, UDP and PPP. Extended AT commands have
been developed for customers to use these internet service protocols easily.

2.2. Key Features

The following table describes the detailed features of EG95 module.

Table 2: Key Features of EG95 Module

Feature

Details

Power Supply

Supply voltage: 3.3V~4.3V
Typical supply voltage: 3.8V

Transmitting Power

Class 4 (33dBm±2dB) for EGSM900
Class 1 (30dBm±2dB) for DCS1800
Class E2 (27dBm±3dB) for EGSM900 8-PSK
Class E2 (26dBm±3dB) for DCS1800 8-PSK
Class 3 (24dBm+1/-3dB) for WCDMA bands
Class 3 (23dBm±2dB) for LTE-FDD bands

LTE Features

Support up to non-CA Cat 4 FDD
Support 1.4/3/5/10/15/20MHz RF bandwidth
Support MIMO in DL direction
FDD: Max 150Mbps (DL)/Max 50Mbps (UL)

UMTS Features

Support 3GPP R8 DC-HSDPA, HSPA+, HSDPA, HSUPA and WCDMA
Support QPSK, 16-QAM and 64-QAM modulation
DC-HSDPA: Max 42Mbps (DL)
HSUPA: Max 5.76Mbps (UL)
WCDMA: Max 384Kbps (DL)/ Max 384Kbps (UL)

GSM Features

R99:

CSD: 9.6kbps

GPRS:

Support GPRS multi-slot class 33 (33 by default)
Coding scheme: CS-1, CS-2, CS-3 and CS-4
Max 107Kbps (DL), Max 85.6Kbps (UL)

EDGE:

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Support EDGE multi-slot class 33 (33 by default)
Support GMSK and 8-PSK for different MCS (Modulation and Coding
Scheme)
Downlink coding schemes: CS 1-4 and MCS 1-9
Uplink coding schemes: CS 1-4 and MCS 1-9
Max 296Kbps (DL)/Max 236.8Kbps (UL)

Internet Protocol Features

Support TCP/UDP/PPP/FTP/FTPS/HTTP/HTTPS/NTP/PING/QMI/NITZ/
MMS/SMTP/SSL/MQTT/FILE/CMUX*/SMTPS* protocols
Support PAP (Password Authentication Protocol) and CHAP (Challenge
Handshake Authentication Protocol) protocols which are usually used for
PPP connections

SMS

Text and PDU modes
Point-to-point MO and MT
SMS cell broadcast
SMS storage: ME by default

(U)SIM Interfaces

Support 1.8V and 3.0V (U)SIM cards

Audio Features

Support one digital audio interface: PCM interface
GSM: HR/FR/EFR/AMR/AMR-WB
WCDMA: AMR/AMR-WB
LTE: AMR/AMR-WB
Support echo cancellation and noise suppression

PCM Interface

Used for audio function with external codec

Support 16-bit linear data format
Support long frame synchronization and short frame synchronization

Support master and slave mode, but must be the master in long frame

synchronization

USB Interface

Compliant with USB 2.0 specification (slave only); the data transfer rate
can reach up to 480Mbps
Used for AT command communication, data transmission, GNSS NMEA
sentences output, software debugging, firmware upgrade and voice over

USB

Support USB serial drivers for: Windows 7/8/8.1/10, Linux 2.6/3.x/4.1~4.15,

Android 4.x/5.x/6.x/7.x/8.x/9.x, etc.

UART Interface

Main UART:

Used for AT command communication and data transmission

Baud rates reach up to 921600bps, 115200bps by default
Support RTS and CTS hardware flow control

Debug UART:

Used for Linux console and log output
115200bps baud rate

SPI Interface 2)

Provides a duplex, synchronous and serial communication link with the
peripheral devices.
Dedicated to one-to-one connection, without chip selection.

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1.8V operation voltage with clock rates up to 50MHz.

Rx-diversity

Support LTE/WCDMA Rx-diversity

GNSS Features

Gen8C Lite of Qualcomm
Protocol: NMEA 0183

AT Commands

Compliant with 3GPP TS 27.007, 27.005 and Quectel enhanced AT
commands

Network Indication

NETLIGHT pin for network activity status indication

Antenna Interfaces

Including main antenna interface (ANT_MAIN), Rx-diversity antenna
(ANT_DIV) interface and GNSS antenna interface (ANT_GNSS)1)

Physical Characteristics

Size: (29.0±0.15)mm × (25.0±0.15)mm × (2.3±0.2)mm
Package: LGA
Weight: approx. 3.8g

Temperature Range

Operation temperature range: -35°C ~ +75°C 3)
Extended temperature range: -40°C ~ +85°C

4)

Storage temperature range: -40°C ~ +90°C

Firmware Upgrade

USB interface or DFOTA

RoHS

All hardware components are fully compliant with EU RoHS directive

1.

1)

GNSS antenna interface is only supported on EG95-NA/-EX/-NAX.

2.

2)

SPI interface is not supported on ThreadX modules.

3. 3) Within operation temperature range, the module is 3GPP compliant.

4. 4) Within extended temperature range, the module remains the ability to establish and maintain a
voice, SMS, data transmission, emergency call* (emergency call is not supported on ThreadX
module), etc. There is no unrecoverable malfunction. There are also no effects on radio spectrum
and no harm to radio network. Only one or more parameters like P

out

might reduce in their value and
exceed the specified tolerances. When the temperature returns to normal operation temperature
levels, the module will meet 3GPP specifications again.

5. “*” means under development.

NOTES

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EG95 Hardware Design

EG95_Hardware_Design 17 / 93

2.3. Functional Diagram

The following figure shows a block diagram of EG95 and illustrates the major functional parts.

⚫ Power management
⚫ Baseband
⚫ DDR+NAND flash
⚫ Radio frequency
⚫ Peripheral interfaces

Baseband

PMIC

Transceiver

NAND

DDR2

SDRAM

PA

PAM

Switch

ANT_MAIN ANT_DIV

VBAT_BB

VBAT_RF

PWRKEY

VDD_EXT

USB PCM UARTI2C

RESET_N

19.2M
XO

STATUS

GPIOs

Control

IQ Control

Duplexer

SAW

Tx

PRx DRx

(U)SIM2

SPI

(U)SIM1

SAW

LNA

ANT_GNSS

1)

SAW

GPS

Figure 1: Functional Diagram

1)

GNSS antenna interface is only supported on EG95-NA/-EX/-NAX.

NOTE

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EG95 Hardware Design

EG95_Hardware_Design 18 / 93

2.4. Evaluation Board

Quectel provides a complete set of evaluation tools to facilitate the use and testing of EG95 module. The

evaluation tool kit includes the evaluation board (UMTS<E EVB), USB data cable, earphone, antenna
and other peripherals. For more details, please refer to document [7].

LTE Standard Module Series

EG95 Hardware Design

EG95_Hardware_Design 19 / 93

3 Application Interfaces

3.1. General Description

EG95 is equipped with 62-pin 1.1mm pitch SMT pads and 44-pin ground/reserved pads that can be
connected to customers’ cellular application platforms. Sub-interfaces included in these pads are
described in detail in the following chapters:

⚫ Power supply
⚫ (U)SIM interfaces
⚫ USB interface
⚫ UART interfaces
⚫ PCM and I2C interfaces
⚫ SPI interface 1)
⚫ Status indication
⚫ USB_BOOT interface

⚫

1)

SPI interface is not supported on ThreadX modules.

NOTE

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EG95 Hardware Design

EG95_Hardware_Design 20 / 93

3.2. Pin Assignment

The following figure shows the pin assignment of EG95 module.

NC

PCM_SYNC

PCM_CLK

PCM_DIN

PCM_DOUT

NC

NC

PWRKEY

1)

NC

RESET_N

RESERVED

1
2
3
4
5
6
7

11
12
13
14
15
16
17
18

50

51

52

53

54

55

58

59

60

61

62

USB_DM

AP_READY

STATUS

NETLIGHT

DBG_RXD

DBG_TXD

ADC0

RESERVED

SPI_CLK

SPI_MOSI

SPI_MISO

VDD_EXT

DTR

GND

USIM1_CLK
USIM1_DATA
USIM1_RST
USIM1_VDD

RI
DCD

CTS

TXD

RXD
VBAT_BB

VBAT_BB

USIM_GND

GND

31

30

29

28

27

26

23

22

21

20

19

10

9

USB_DP

USB_VBUS

NC

GND

NC
NC

RTS

I2C_SCL

I2C_SDA

8

49
48
47
46
45
44
43

40

41

42

39
38
37
36
35
34
33
32

24 57

56

GND

GND

ANT_MAIN

GND

GND

NC

VBAT_RF

VBAT_RF

GND

GND

NC

GND

USIM1_PRESENCE

63

64

65

66

67

68

83

84

85

86

87

88

98

97

96

95

94

93

78

77

76

75

74

73

91 92

89 90

71

72

69

70

80 79

82 81

100

99

102 101

POWER USB UART

(U)SIM

OTHERS

GND

NC

PCM

ANT

25

USIM2_PRESENCE

USIM2_CLK

USIM2_RST

USIM2_DATA

USIM2_VDD

SPI

USB_BOOT

103

104

105

106

ANT_DIV (EG95-NA/-EX/-NAX)

ANT_GNSS (EG95-NA/-EX/-NAX)

RESERVED

RESERVED (Pin 56 on EG95-E)

ANT_DIV (EG95-E)

Figure 2: Pin Assignment (Top View)

LTE Standard Module Series

EG95 Hardware Design

EG95_Hardware_Design 21 / 93

1. 1) PWRKEY output voltage is 0.8V because of the diode drop in the Qualcomm chipset.

2. Keep all RESERVED pins and unused pins unconnected.

3. GND pads should be connected to ground in the design.

4. Please note that the definition of pin 49 and 56 are different among EG95-E and EG95-NA/-EX/-NAX.
For more details, please refer to Table 4.

3.3. Pin Description

The following tables show the pin definition and description of EG95.

Table 3: IO Parameters Definition

Type

Description

AI

Analog Input

AO

Analog Output

DI

Digital Input

DO

Digital Output

IO

Bidirectional

OD

Open Drain

PI

Power Input

PO

Power Output

Table 4: Pin Description

Power Supply

Pin Name

Pin No.

I/O

Description

DC

Characteristics

Comment

VBAT_BB

32, 33

PI

Power supply for

module’s

baseband part

Vmax=4.3V
Vmin=3.3V
Vnorm=3.8V

It must be provided with

sufficient current up to

0.8A.

VBAT_RF

52, 53

PI

Power supply for

Vmax=4.3V

It must be provided with

NOTES

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EG95_Hardware_Design 22 / 93

module’s RF part

Vmin=3.3V
Vnorm=3.8V

sufficient current up to

1.8A in a burst

transmission.

VDD_EXT

29

PO

Provide 1.8V for

external circuit

Vnorm=1.8V

I

O

max=50mA

Power supply for

external GPIO’s pull up

circuits.
If unused, keep it open.

GND

3, 31, 48,
50, 54, 55,
58, 59, 61,
62, 67~74,
79~82,
89~91,
100~106

Ground

Power-on/off

Pin Name

Pin No.

I/O

Description

DC Characteristics

Comment

PWRKEY

15

DI

Turn on/off the

module

V

H

=0.8V

The output voltage is

0.8V because of the

diode drop in the

Qualcomm chipset.

RESET_N

17

DI

Reset signal of the

module

V

IH

max=2.1V

V

IH

min=1.3V

V

IL

max=0.5V

Pull-up to 1.8V
internally.
Active low.

If unused, keep it

open.

Status Indication

Pin Name

Pin No.

I/O

Description

DC Characteristics

Comment

STATUS

20

DO

Indicate the

module’s operation

status

V

OH

min=1.35V

V

OL

max=0.45V

1.8V power domain.

If unused, keep it

open.

NETLIGHT

21

DO

Indicate the

module’s network

activity status

V

OH

min=1.35V

V

OL

max=0.45V

1.8V power domain.

If unused, keep it

open.

USB Interface

Pin Name

Pin No.

I/O

Description

DC Characteristics

Comment

USB_VBUS

8

PI

USB connection

detection

Vmax=5.25V
Vmin=3.0V
Vnorm=5.0V

Typical: 5.0V

If unused, keep it

open.

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EG95 Hardware Design

EG95_Hardware_Design 23 / 93

USB_DP

9

IO

USB differential

data bus (+)

Compliant with USB

2.0 standard

specification.

Require differential

impedance of 90Ω.

USB_DM

10

IO

USB differential

data bus (-)

Compliant with USB

2.0 standard

specification.

Require differential

impedance of 90Ω.

(U)SIM Interfaces

Pin Name

Pin No.

I/O

Description

DC Characteristics

Comment

USIM_GND

47

Specified ground

for (U)SIM card

Connect to ground of

(U)SIM card

connector.

USIM1_VDD

43

PO

Power supply for

(U)SIM card

For 1.8V (U)SIM:

Vmax=1.9V
Vmin=1.7V

For 3.0V (U)SIM:

Vmax=3.05V
Vmin=2.7V

I

O

max=50mA

Either 1.8V or 3.0V is

supported by the

module automatically.

USIM1_DATA

45

IO

Data signal of

(U)SIM card

For 1.8V (U)SIM:

V

IL

max=0.6V

V

IH

min=1.2V

V

OL

max=0.45V

V

OH

min=1.35V

For 3.0V (U)SIM:

V

IL

max=1.0V

V

IH

min=1.95V

V

OL

max=0.45V

V

OH

min=2.55V

USIM1_CLK

46

DO

Clock signal of

(U)SIM card

For 1.8V (U)SIM:

V

OL

max=0.45V

V

OH

min=1.35V

For 3.0V (U)SIM:

V

OL

max=0.45V

V

OH

min=2.55V

LTE Standard Module Series

EG95 Hardware Design

EG95_Hardware_Design 24 / 93

USIM1_RST

44

DO

Reset signal of

(U)SIM card

For 1.8V (U)SIM:

V

OL

max=0.45V

V

OH

min=1.35V

For 3.0V (U)SIM:

V

OL

max=0.45V

V

OH

min=2.55V

USIM1_
PRESENCE

42

DI

(U)SIM card

insertion detection

V

IL

min=-0.3V

V

IL

max=0.6V

V

IH

min=1.2V

V

IH

max=2.0V

1.8V power domain.

If unused, keep it

open.

USIM2_VDD

87

PO

Power supply for

(U)SIM card

For 1.8V (U)SIM:

Vmax=1.9V
Vmin=1.7V

For 3.0V (U)SIM:

Vmax=3.05V
Vmin=2.7V

I

O

max=50mA

Either 1.8V or 3.0V is

supported by the

module automatically.

USIM2_DATA

86

IO

Data signal of

(U)SIM card

For 1.8V (U)SIM:

V

IL

max=0.6V

V

IH

min=1.2V

V

OL

max=0.45V

V

OH

min=1.35V

For 3.0V (U)SIM:

V

IL

max=1.0V

V

IH

min=1.95V

V

OL

max=0.45V

V

OH

min=2.55V

USIM2_CLK

84

DO

Clock signal of

(U)SIM card

For 1.8V (U)SIM:

V

OL

max=0.45V

V

OH

min=1.35V

For 3.0V (U)SIM:

V

OL

max=0.45V

V

OH

min=2.55V

USIM2_RST

85

DO

Reset signal of

(U)SIM card

For 1.8V (U)SIM:

V

OL

max=0.45V

V

OH

min=1.35V

For 3.0V (U)SIM:

V

OL

max=0.45V

V

OH

min=2.55V

LTE Standard Module Series

EG95 Hardware Design

EG95_Hardware_Design 25 / 93

USIM2_
PRESENCE

83

DI

(U)SIM card

insertion detection

V

IL

min=-0.3V

V

IL

max=0.6V

V

IH

min=1.2V

V

IH

max=2.0V

1.8V power domain.

If unused, keep it

open.

Main UART Interface

Pin Name

Pin No.

I/O

Description

DC Characteristics

Comment

RI

39

DO

Ring indicator

V

OL

max=0.45V

V

OH

min=1.35V

1.8V power domain.

If unused, keep it

open.

DCD

38

DO

Data carrier

detection

V

OL

max=0.45V

V

OH

min=1.35V

1.8V power domain.

If unused, keep it

open.

CTS

36

DO

Clear to send

V

OL

max=0.45V

V

OH

min=1.35V

1.8V power domain.

If unused, keep it

open.

RTS

37

DI

Request to send

V

IL

min=-0.3V

V

IL

max=0.6V

V

IH

min=1.2V

V

IH

max=2.0V

1.8V power domain.

If unused, keep it

open.

DTR

30

DI

Data terminal

ready. Sleep mode

control.

V

IL

min=-0.3V

V

IL

max=0.6V

V

IH

min=1.2V

V

IH

max=2.0V

1.8V power domain.

Pull-up by default.

Low level wakes up

the module.

If unused, keep it

open.

TXD

35

DO

Transmit data

V

OL

max=0.45V

V

OH

min=1.35V

1.8V power domain.

If unused, keep it

open.

RXD

34

DI

Receive data

V

IL

min=-0.3V

V

IL

max=0.6V

V

IH

min=1.2V

V

IH

max=2.0V

1.8V power domain.

If unused, keep it

open.

Debug UART Interface

Pin Name

Pin No.

I/O

Description

DC Characteristics

Comment

DBG_TXD

23

DO

Transmit data

V

OL

max=0.45V

V

OH

min=1.35V

1.8V power domain.

If unused, keep it

open.

DBG_RXD

22

DI

Receive data

V

IL

min=-0.3V

V

IL

max=0.6V

V

IH

min=1.2V

1.8V power domain.

If unused, keep it

open.

LTE Standard Module Series

EG95 Hardware Design

EG95_Hardware_Design 26 / 93

V

IH

max=2.0V

PCM Interface

Pin Name

Pin No.

I/O

Description

DC Characteristics

Comment

PCM_DIN

6

DI

PCM data input

V

IL

min=-0.3V

V

IL

max=0.6V

V

IH

min=1.2V

V

IH

max=2.0V

1.8V power domain.

If unused, keep it

open.

PCM_DOUT

7

DO

PCM data output

V

OL

max=0.45V

V

OH

min=1.35V

1.8V power domain.

If unused, keep it

open.

PCM_SYNC

5

IO

PCM data frame

synchronization

signal

V

OL

max=0.45V

V

OH

min=1.35V

V

IL

min=-0.3V

V

IL

max=0.6V

V

IH

min=1.2V

V

IH

max=2.0V

1.8V power domain.

In master mode, it is

an output signal. In

slave mode, it is an

input signal.

If unused, keep it

open.

PCM_CLK

4

IO

PCM clock

V

OL

max=0.45V

V

OH

min=1.35V

V

IL

min=-0.3V

V

IL

max=0.6V

V

IH

min=1.2V

V

IH

max=2.0V

1.8V power domain.

In master mode, it is

an output signal. In

slave mode, it is an

input signal.

If unused, keep it

open.

I2C Interface

Pin Name

Pin No.

I/O

Description

DC Characteristics

Comment

I2C_SCL

40

OD

I2C serial clock.

Used for external

codec

An external pull-up
resistor is required.

1.8V only.

If unused, keep it

open.

I2C_SDA

41

OD

I2C serial data.

Used for external

codec

An external pull-up
resistor is required.

1.8V only.

If unused, keep it

open.

ADC Interface

Pin Name

Pin No.

I/O

Description

DC Characteristics

Comment

LTE Standard Module Series

EG95 Hardware Design

EG95_Hardware_Design 27 / 93

ADC0

24

AI

General purpose

analog to digital

converter

Voltage range:

0.3V to VBAT_BB

If unused, keep it

open.

SPI Interface

1)

Pin Name

Pin No.

I/O

Description

DC Characteristics

Comment

SPI_CLK

26

DO

Clock signal of SPI

interface

V

OL

max=0.45V

V

OH

min=1.35V

1.8V power domain.

If unused, keep it

open.

SPI_MOSI

27

DO

Master output slave

input of SPI

interface

V

OL

max=0.45V

V

OH

min=1.35V

1.8V power domain.

If unused, keep it

open.

SPI_MISO

28

DI

Master input slave

output of SPI

interface

V

IL

min=-0.3V

V

IL

max=0.6V

V

IH

min=1.2V

V

IH

max=2.0V

1.8V power domain.

If unused, keep it

open.

RF Interfaces

Pin Name

Pin No.

I/O

Description

DC Characteristics

Comment

ANT_GNSS

49
(EG95­NA/-EX/

-NAX)

AI

GNSS antenna pad

50Ω impedance.

If unused, keep it

open.

The pin is defined as

ANT_DIV on
EG95-E.

ANT_DIV
49

(EG95-E)

AI

Receive diversity

antenna pad

50Ω impedance.

If unused, keep it

open.

Pin 56 is reserved on

EG95-E.

56
(EG95­NA/-EX/

-NAX)

ANT_MAIN

60

IO

Main antenna pad

50Ω impedance.

Other Pins

Pin Name

Pin No.

I/O

Description

DC Characteristics

Comment

AP_READY

19

DI

Application

processor sleep

state detection

V

IL

min=-0.3V

V

IL

max=0.6V

V

IH

min=1.2V

V

IH

max=2.0V

1.8V power domain.

If unused, keep it

open.

LTE Standard Module Series

EG95 Hardware Design

EG95_Hardware_Design 28 / 93

1. 1) SPI interface is not supported on ThreadX modules.

2. Keep all RESERVED pins and unused pins unconnected.

3.4. Operating Modes

The table below briefly summarizes the various operating modes referred in the following chapters.

Table 5: Overview of Operating Modes

Mode

Details

Normal
Operation

Idle

Software is active. The module has registered on network, and it is

ready to send and receive data.

Talk/Data

Network connection is ongoing. In this mode, the power consumption is
decided by network setting and data transfer rate.

Minimum
Functionality
Mode

AT+CFUN command can set the module to a minimum functionality mode without
removing the power supply. In this case, both RF function and (U)SIM card will be invalid.

Airplane
Mode

AT+CFUN command or W_DISABLE# pin can set the module to enter airplane mode. In

this case, RF function will be invalid.

USB_BOOT

75

DI

Force the module

to enter emergency

download mode

V

IL

min=-0.3V

V

IL

max=0.6V

V

IH

min=1.2V

V

IH

max=2.0V

1.8V power domain.

It is recommended to

reserve the test

points.

RESERVED Pins

Pin Name

Pin No.

I/O

Description

DC Characteristics

Comment

NC

1,2, 11~14,

16, 51,
57, 63~66,
76~78,
88, 92~99

NC

Keep these pins

unconnected.

RESERVED

18, 25, 56

Reserved

Keep these pins

unconnected.

Pin 56 is only

reserved on EG95-E.

NOTES

LTE Standard Module Series

EG95 Hardware Design

EG95_Hardware_Design 29 / 93

Sleep Mode

In this mode, the current consumption of the module will be reduced to the minimal level.
During this mode, the module can still receive paging message, SMS, voice call and
TCP/UDP data from the network normally.

Power Down
Mode

In this mode, the power management unit shuts down the power supply. Software is not
active. The serial interface is not accessible. Operating voltage (connected to VBAT_RF
and VBAT_BB) remains applied.

3.5. Power Saving

3.5.1. Sleep Mode

EG95 is able to reduce its current consumption to a minimum value during the sleep mode. The following

sub-chapters describe the power saving procedures of EG95 module.

3.5.1.1. UART Application

If the host communicates with the module via UART interface, the following preconditions can let the

module enter sleep mode.

⚫ Execute AT+QSCLK=1 command to enable sleep mode.
⚫ Drive DTR to high level.

The following figure shows the connection between the module and the host.

RXD

TXD

RI

DTR

AP_READY

TXD

RXD
EINT
GPIO
GPIO

Module

Host

GND

GND

Figure 3: Sleep Mode Application via UART

Driving the host DTR to low level will wake up the module.

⚫ When EG95 has a URC to report, RI signal will wake up the host. Please refer to Chapter 3.17 for

details about RI behavior.

⚫ AP_READY will detect the sleep state of host (can be configured to high level or low level detection).

Please refer to AT+QCFG="apready" for details.