Quectel EG95-E User manual

EG95 Hardware Design
LTE Module Series
Rev. EG95_Hardware_Design_V1.2
Date: 2018-03-14
Status: Released
www.quectel.com

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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.

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Contents
About the Document...................................................................................................................................2
Contents.......................................................................................................................................................4
Table Index...................................................................................................................................................6
Figure Index.................................................................................................................................................7
1Introduction..........................................................................................................................................9
1.1. Safety Information....................................................................................................................10
2Product Concept................................................................................................................................11
2.1. General Description................................................................................................................. 11
2.2. Key Features ...........................................................................................................................12
2.3. Functional Diagram .................................................................................................................14
2.4. Evaluation Board .....................................................................................................................15
3Application Interfaces .......................................................................................................................16
3.1. General Description.................................................................................................................16
3.2. Pin Assignment........................................................................................................................17
3.3. Pin Description.........................................................................................................................18
3.4. Operating Modes .....................................................................................................................24
3.5. Power Saving...........................................................................................................................24
3.5.1. Sleep Mode ....................................................................................................................24
3.5.1.1. UART Application.................................................................................................25
3.5.1.2. USB Application with USB Remote Wakeup Function ........................................25
3.5.1.3. USB Application with USB Suspend/Resume and RI Function ..........................26
3.5.1.4. USB Application without USB Suspend Function................................................27
3.5.2. Airplane Mode ................................................................................................................27
3.6. Power Supply...........................................................................................................................28
3.6.1. Power Supply Pins.........................................................................................................28
3.6.2. Decrease Voltage Drop..................................................................................................29
3.6.3. Reference Design for Power Supply..............................................................................30
3.6.4. Monitor the Power Supply..............................................................................................30
3.7. Turn on and off Scenarios .......................................................................................................30
3.7.1. Turn on Module Using the PWRKEY.............................................................................30
3.7.2. Turn off Module..............................................................................................................32
3.7.2.1. Turn off Module Using the PWRKEY Pin.............................................................32
3.7.2.2. Turn off Module Using AT Command...................................................................33
3.8. Reset the Module.....................................................................................................................33
3.9. (U)SIM Interfaces.....................................................................................................................35
3.10. USB Interface ..........................................................................................................................38
3.11. UART Interfaces ......................................................................................................................40
3.12. PCM and I2C Interfaces ..........................................................................................................42
3.13. SPI Interface ............................................................................................................................45
3.14. Network Status Indication........................................................................................................45

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3.15. STATUS ...................................................................................................................................46
3.16. Behaviors of RI ........................................................................................................................47
4GNSS Receiver...................................................................................................................................48
4.1. General Description.................................................................................................................48
4.2. GNSS Performance.................................................................................................................48
4.3. Layout Guidelines....................................................................................................................49
5Antenna Interfaces.............................................................................................................................50
5.1. Main/Rx-diversity Antenna Interfaces......................................................................................50
5.1.1. Pin Definition ..................................................................................................................50
5.1.2. Operating Frequency .....................................................................................................50
5.1.3. Reference Design of RF Antenna Interface...................................................................51
5.1.4. Reference Design of RF Layout.....................................................................................52
5.2. GNSS Antenna Interface .........................................................................................................54
5.3. Antenna Installation .................................................................................................................55
5.3.1. Antenna Requirement ....................................................................................................55
5.3.2. Recommended RF Connector for Antenna Installation .................................................56
6Electrical, Reliability and Radio Characteristics............................................................................58
6.1. Absolute Maximum Ratings.....................................................................................................58
6.2. Power Supply Ratings .............................................................................................................58
6.3. Operation and Storage Temperatures.....................................................................................59
6.4. Current Consumption ..............................................................................................................60
6.5. RF Output Power.....................................................................................................................63
6.6. RF Receiving Sensitivity..........................................................................................................64
6.7. Electrostatic Discharge............................................................................................................65
6.8. Thermal Consideration ............................................................................................................66
7Mechanical Dimensions....................................................................................................................68
7.1. Mechanical Dimensions of the Module....................................................................................68
7.2. Recommended Footprint .........................................................................................................70
7.3. Design Effect Drawings of the Module ....................................................................................71
8Storage, Manufacturing and Packaging..........................................................................................72
8.1. Storage ....................................................................................................................................72
8.2. Manufacturing and Soldering ..................................................................................................73
8.3. Packaging ................................................................................................................................74
9Appendix A References.....................................................................................................................75
10 Appendix B GPRS Coding Schemes...............................................................................................78
11 Appendix C GPRS Multi-slot Classes..............................................................................................79
12 Appendix D EDGE Modulation and Coding Schemes ...................................................................81

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Table Index
TABLE 1: FREQUENCY BANDS OF EG95 MODULE.......................................................................................11
TABLE 2: KEY FEATURES OF EG95 MODULE............................................................................................... 12
TABLE 3: IO PARAMETERS DEFINITION........................................................................................................ 18
TABLE 4: PIN DESCRIPTION ........................................................................................................................... 18
TABLE 5: OVERVIEW OF OPERATING MODES............................................................................................. 24
TABLE 6: VBAT AND GND PINS....................................................................................................................... 28
TABLE 7: PIN DEFINITION OF PWRKEY ........................................................................................................ 31
TABLE 8: PIN DEFINITION OF RESET_N ....................................................................................................... 33
TABLE 9: PIN DEFINITION OF (U)SIM INTERFACES..................................................................................... 35
TABLE 10: PIN DEFINITION OF USB INTERFACE ......................................................................................... 38
TABLE 11: PIN DEFINITION OF MAIN UART INTERFACE ............................................................................. 40
TABLE 12: PIN DEFINITION OF DEBUG UART INTERFACE ......................................................................... 40
TABLE 13: LOGIC LEVELS OF DIGITAL I/O .................................................................................................... 41
TABLE 14: PIN DEFINITION OF PCM AND I2C INTERFACES ....................................................................... 44
TABLE 15: PIN DEFINITION OF SPI INTERFACE........................................................................................... 45
TABLE 16: PIN DEFINITION OF NETWORK STATUS INDICATOR ................................................................ 46
TABLE 17: WORKING STATE OF THE NETWORK STATUS INDICATOR...................................................... 46
TABLE 18: PIN DEFINITION OF STATUS ........................................................................................................ 46
TABLE 19: DEFAULT BEHAVIORS OF RI ........................................................................................................ 47
TABLE 20: GNSS PERFORMANCE................................................................................................................. 48
TABLE 21: PIN DEFINITION OF RF ANTENNA ............................................................................................... 50
TABLE 22: MODULE OPERATING FREQUENCIES ........................................................................................ 50
TABLE 23: PIN DEFINITION OF GNSS ANTENNA INTERFACE.................................................................... 54
TABLE 24: GNSS FREQUENCY ...................................................................................................................... 54
TABLE 25: ANTENNA REQUIREMENTS.......................................................................................................... 55
TABLE 26: ABSOLUTE MAXIMUM RATINGS .................................................................................................. 58
TABLE 27: POWER SUPPLY RATINGS ........................................................................................................... 58
TABLE 28: OPERATION AND STORAGE TEMPERATURES .......................................................................... 59
TABLE 29: EG95-E CURRENT CONSUMPTION ............................................................................................. 60
TABLE 30: EG95-NA CURRENT CONSUMPTION........................................................................................... 62
TABLE 31: GNSS CURRENT CONSUMPTION OF EG95-NA......................................................................... 63
TABLE 32: RF OUTPUT POWER ..................................................................................................................... 63
TABLE 33: EG95-E CONDUCTED RF RECEIVING SENSITIVITY.................................................................. 64
TABLE 34: EG95-NA CONDUCTED RF RECEIVING SENSITIVITY ............................................................... 65
TABLE 35: ELECTROSTATIC DISCHARGE CHARACTERISTICS ................................................................. 65
TABLE 36: RELATED DOCUMENTS................................................................................................................ 75
TABLE 37: TERMS AND ABBREVIATIONS ...................................................................................................... 75
TABLE 38: DESCRIPTION OF DIFFERENT CODING SCHEMES .................................................................. 78
TABLE 39: GPRS MULTI-SLOT CLASSES ...................................................................................................... 79
TABLE 40: EDGE MODULATION AND CODING SCHEMES........................................................................... 81

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Figure Index
FIGURE 1: FUNCTIONAL DIAGRAM ............................................................................................................... 15
FIGURE 2: PIN ASSIGNMENT (TOP VIEW)..................................................................................................... 17
FIGURE 3: SLEEP MODE APPLICATION VIA UART....................................................................................... 25
FIGURE 4: SLEEP MODE APPLICATION WITH USB REMOTE WAKEUP .................................................... 26
FIGURE 5: SLEEP MODE APPLICATION WITH RI ......................................................................................... 26
FIGURE 6: SLEEP MODE APPLICATION WITHOUT SUSPEND FUNCTION ................................................ 27
FIGURE 7: POWER SUPPLY LIMITS DURING BURST TRANSMISSION...................................................... 29
FIGURE 8: STAR STRUCTURE OF THE POWER SUPPLY............................................................................ 29
FIGURE 9: REFERENCE CIRCUIT OF POWER SUPPLY .............................................................................. 30
FIGURE 10: TURN ON THE MODULE USING DRIVING CIRCUIT................................................................. 31
FIGURE 11: TURN ON THE MODULE USING BUTTON ................................................................................. 31
FIGURE 12: TIMING OF TURNING ON MODULE ........................................................................................... 32
FIGURE 13: TIMING OF TURNING OFF MODULE ......................................................................................... 33
FIGURE 14: REFERENCE CIRCUIT OF RESET_N BY USING DRIVING CIRCUIT ...................................... 34
FIGURE 15: REFERENCE CIRCUIT OF RESET_N BY USING BUTTON ...................................................... 34
FIGURE 16: TIMING OF RESETTING MODULE ............................................................................................. 34
FIGURE 17: REFERENCE CIRCUIT OF (U)SIM1 INTERFACE WITH AN 8-PIN (U)SIM CARD CONNECTOR
................................................................................................................................................................... 36
FIGURE 18: REFERENCE CIRCUIT OF (U)SIM1 INTERFACE WITH A 6-PIN (U)SIM CARD CONNECTOR36
FIGURE 19: REFERENCE CIRCUIT OF (U)SIM2 INTERFACE WITH AN 8-PIN (U)SIM CARD CONNECTOR
................................................................................................................................................................... 37
FIGURE 20: REFERENCE CIRCUIT OF (U)SIM2 INTERFACE WITH A 6-PIN (U)SIM CARD CONNECTOR37
FIGURE 21: REFERENCE CIRCUIT OF USB INTERFACE ............................................................................ 39
FIGURE 22: REFERENCE CIRCUIT WITH TRANSLATOR CHIP ................................................................... 41
FIGURE 23: REFERENCE CIRCUIT WITH TRANSISTOR CIRCUIT .............................................................. 42
FIGURE 24: PRIMARY MODE TIMING ............................................................................................................ 43
FIGURE 25: AUXILIARY MODE TIMING .......................................................................................................... 43
FIGURE 26: REFERENCE CIRCUIT OF PCM APPLICATION WITH AUDIO CODEC .................................... 44
FIGURE 27: REFERENCE CIRCUIT OF SPI INTERFACE WITH PERIPHERALS ......................................... 45
FIGURE 28: REFERENCE CIRCUIT OF THE NETWORK STATUS INDICATOR ........................................... 46
FIGURE 29: REFERENCE CIRCUIT OF STATUS ........................................................................................... 47
FIGURE 30: REFERENCE CIRCUIT OF RF ANTENNA INTERFACE ............................................................. 51
FIGURE 31: MICROSTRIP LINE DESIGN ON A 2-LAYER PCB...................................................................... 52
FIGURE 32: COPLANAR WAVEGUIDE LINE DESIGN ON A 2-LAYER PCB.................................................. 52
FIGURE 33: COPLANAR WAVEGUIDE LINE DESIGN ON A 4-LAYER PCB (LAYER 3 AS REFERENCE
GROUND) .................................................................................................................................................. 53
FIGURE 34: COPLANAR WAVEGUIDE LINE DESIGN ON A 4-LAYER PCB (LAYER 4 AS REFERENCE
GROUND) .................................................................................................................................................. 53
FIGURE 35: REFERENCE CIRCUIT OF GNSS ANTENNA............................................................................. 54
FIGURE 36: DIMENSIONS OF THE U.FL-R-SMT CONNECTOR (UNIT: MM)................................................ 56
FIGURE 37: MECHANICALS OF U.FL-LP CONNECTORS............................................................................. 56

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FIGURE 38: SPACE FACTOR OF MATED CONNECTOR (UNIT: MM) ........................................................... 57
FIGURE 39: REFERENCED HEATSINK DESIGN (HEATSINK AT THE TOP OF THE MODULE) .................. 66
FIGURE 40: REFERENCED HEATSINK DESIGN (HEATSINK AT THE BOTTOM OF CUSTOMERS’ PCB) . 67
FIGURE 41: MODULE TOP AND SIDE DIMENSIONS..................................................................................... 68
FIGURE 42: MODULE BOTTOM DIMENSIONS (TOP VIEW) ......................................................................... 69
FIGURE 43: RECOMMENDED FOOTPRINT (TOP VIEW) .............................................................................. 70
FIGURE 44: TOP VIEW OF THE MODULE ...................................................................................................... 71
FIGURE 45: BOTTOM VIEW OF THE MODULE.............................................................................................. 71
FIGURE 46: REFLOW SOLDERING THERMAL PROFILE.............................................................................. 73
FIGURE 47: TAPE DIMENSIONS ..................................................................................................................... 74
FIGURE 48: REEL DIMENSIONS ..................................................................................................................... 74

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1Introduction
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. You must comply with laws and regulations
restricting the use of wireless devices while driving.
Switch off the cellular terminal or mobile before boarding an aircraft. Make sure it is
switched off. The operation of wireless appliances in an aircraft is forbidden, so as
to prevent interference with communication systems. Consult the airline staff about
the use of wireless devices on boarding the aircraft, if your device offers an
Airplane Mode which must be enabled prior to boarding an aircraft.
Switch off your wireless device when in hospitals,clinics or other health care
facilities. These requests are designed to prevent possible interference with
sensitive medical equipment.
Cellular terminals or mobiles operating over radio frequency signal and cellular
network cannot be guaranteed to connect in all conditions, for example no mobile
fee or with an invalid (U)SIM card. While you are in this condition and need
emergent help, please remember using emergency call. In order to make or
receive a call, the cellular terminal or mobile must be switched on and in a service
area with adequate cellular signal strength.
Your cellular terminal or mobile contains a transmitter and receiver. When it is ON,
it receives and transmits radio frequency energy. 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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2Product 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
functionality1) to meet customers’ specific application demands. The following table shows the frequency
bands of EG95 module.
Table 1: Frequency Bands of EG95 Module
1. 1) EG91 contains Telematics version and Data-only version. Telematics version supports voice and
data functions, while Data-only version only supports data function.
2. 2) GNSS function is optional.
3. “*” means under development.
With a compact profile of 29.0mm × 25.0mm × 2.25mm, 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.
Module
LTE Bands
(with Rx-diversity)
WCDMA
(with Rx-diversity)
GSM
GNSS2)
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
NOTES

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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 1.4MHz~20MHz RF bandwidth
Support MIMO in DL direction
FDD: Max 150Mbps (DL)/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)/384Kbps (UL)
GSM Features
R99:
CSD: 9.6kbps
GPRS:
Support GPRS multi-slot class 33
Coding scheme: CS-1, CS-2, CS-3 and CS-4
Max 107Kbps (DL), Max 85.6Kbps (UL)
EDGE:
Support EDGE multi-slot class 33
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/HTTP/NTP/PING/QMI/CMUX*/HTTPS*/
SMTP*/MMS*/FTPS*/SMTPS*/SSL*/FILE* protocols
Support PAP (Password Authentication Protocol) and CHAP (Challenge
Handshake Authentication Protocol) protocols which are usually used for

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PPP connections
SMS
Text and PDU mode
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 XP, Windows Vista, Windows
7/8/8.1/10, Windows CE 5.0/6.0/7.0*, Linux 2.6/3.x/4.1~4.14,
Android 4.x/5.x/6.0/7.x
UART Interface
Main UART:
Used for AT command communication and data transmission
Baud rate 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
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 Interface
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 × (2.25±0.2)mm
Package: LGA

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Weight: approx. 3.8g
Temperature Range
Operation temperature range: -35°C ~ +75°C 2)
Extended temperature range: -40°C ~ +85°C 3)
Storage temperature range: -40°C ~ +90°C
Firmware Upgrade
USB interface and DFOTA*
RoHS
All hardware components are fully compliant with EU RoHS directive
1. 1) GNSS antenna interface is only supported on EG95-NA.
2. 2) Within operating temperature range, the module is 3GPP compliant.
3. 3) Within extended temperature range, the module remains the ability to establish and maintain a
voice, SMS, data transmission, emergency call, 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 Pout might reduce in their value and exceed the specified tolerances. When the temperature
returns to normal operating temperature levels, the module will meet 3GPP specifications again.
4. “*” means under development.
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
NOTES

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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_GNSS1)
SAW
GPS
Figure 1: Functional Diagram
1) GNSS antenna interface is only supported on EG95-NA.
2.4. Evaluation Board
In order to help customers develop applications conveniently with EG95, Quectel supplies an evaluation
board (EVB), USB data cable, earphone, antenna and other peripherals to control or test the module.
NOTE

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3Application Interfaces
3.1. General Description
EG95 is equipped with 62-pin 1.1mm pitch SMT pads plus 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
Status indication

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3.2. Pin Assignment
The following figure shows the pin assignment of EG95 module.
RESERVED
PCM_SYNC
PCM_CLK
PCM_DIN
PCM_DOUT
RESERVED
RESERVED
PWRKEY1)
RESERVED
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
RESERVED
CLK_OUT
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
RESERVED (EG95-E)
31 30 29 28 27 26 23 22 21 20 19
10
9
USB_DP
USB_VBUS
RESERVED
GND
RESERVED
RESERVED
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
RESERVED
VBAT_RF VBAT_RF
GND
GND
ANT_DIV (EG95-E)
RESERVED
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 RESERVED
PCM ANT
25
USIM2_PRESENCE
USIM2_CLK
USIM2_RST
USIM2_DATA
USIM2_VDD
SPI
USB_BOOT
103
104 105
106
ANT_GNSS (EG95-NA)/
ANT_DIV (EG95-NA)/
Figure 2: Pin Assignment (Top View)

LTE Module Series
EG95 Hardware Design
EG95_Hardware_Design 18 / 81
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 between EG95-E and EG95-NA.
3.3. Pin Description
The following tables show the pin definition and description of EG95.
Table 3: IO Parameters Definition
Type
Description
IO
Bidirectional
DI
Digital input
DO
Digital output
PI
Power input
PO
Power output
AI
Analog input
AO
Analog output
OD
Open drain
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 able to
provide sufficient
current up to 0.8A.
VBAT_RF
52, 53
PI
Power supply for
module’s RF part
Vmax=4.3V
Vmin=3.3V
Vnorm=3.8V
It must be able to
provide sufficient
current up to 1.8A in a
NOTES

LTE Module Series
EG95 Hardware Design
EG95_Hardware_Design 19 / 81
transmitting burst.
VDD_EXT
29
PO
Provide 1.8V for
external circuit
Vnorm=1.8V
IOmax=50mA
Power supply for
external GPIO’s pull up
circuits.
GND
3, 31, 48,
50, 54, 55,
58, 59, 61,
62, 67~74,
79~82,
89~91,
100~106
Ground
Turn on/off
Pin Name
Pin No.
I/O
Description
DC Characteristics
Comment
PWRKEY
15
DI
Turn on/off the
module
VIHmax=2.1V
VIHmin=1.3V
VILmax=0.5V
The output voltage is
0.8V because of the
diode drop in the
Qualcomm chipset.
RESET_N
17
DI
Reset signal of the
module
VIHmax=2.1V
VIHmin=1.3V
VILmax=0.5V
Status Indication
Pin Name
Pin No.
I/O
Description
DC Characteristics
Comment
STATUS
20
DO
Indicate the
module’s operation
status
VOin=1.35V
VOLmax=0.45V
1.8V power domain.
If unused, keep this
pin open.
NETLIGHT
21
DO
Indicate the
module’d network
activity status
VOin=1.35V
VOLmax=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 detection
Vnorm=5.0V
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.