BG95 Hardware Design
LPWA Module Series
Rev. BG95_Hardware_Design_V1.0
Date: 2019-05-15
Status: Preliminary
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LPWA Module Series
BG95 Hardware Design
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BG95 Hardware Design
About the Document
History
Revision Date Author Description
LPWA Module Series
1.0 2019-05-15
Lim PENG/
Garey XIE
Initial
BG95_Hardware_Design 2 / 80
LPWA Module Series
BG95 Hardware Design
Contents
About the Document ................................................................................................................................ 2
Contents .................................................................................................................................................... 3
Table Index ............................................................................................................................................... 5
Figure Index .............................................................................................................................................. 7
1 Introduction ....................................................................................................................................... 8
1.1. Safety Information .................................................................................................................... 9
2 Product Concept ............................................................................................................................. 13
2.1. General Description ................................................................................................................ 13
2.2. Key Features .......................................................................................................................... 15
2.3. Functional Diagram ................................................................................................................ 18
2.4. Evaluation Board .................................................................................................................... 19
3 Application Interfaces ..................................................................................................................... 20
3.1. Pin Assignment ...................................................................................................................... 21
3.2. Pin Description ....................................................................................................................... 22
3.3. Operating Modes .................................................................................................................... 29
3.4. Power Saving ......................................................................................................................... 30
3.4.1. Airplane Mode .............................................................................................................. 30
3.4.2. Power Saving Mode (PSM).......................................................................................... 31
3.4.3. Extended Idle Mode DRX (e-I-DRX) ............................................................................ 32
3.4.4. Sleep Mode* ................................................................................................................ 32
3.4.4.1. UART Applic ation .............................................................................................. 32
3.5. Power Supply ......................................................................................................................... 33
3.5.1. Power Supply Pins ....................................................................................................... 33
3.5.2. Decrease Voltage Drop ............................................................................................... 34
3.5.3. Monitor the Power Supply ............................................................................................ 35
3.6. Turn on and off Scenarios ...................................................................................................... 35
3.6.1. Turn on Module Using the PWRKEY Pin ..................................................................... 35
3.6.2. Turn off Module ............................................................................................................ 37
3.6.2.1. Turn off Module Using the PWRKEY Pin ........................................................... 37
3.6.2.2. Turn off Module Using AT Command ................................................................ 38
3.7. Reset the Module ................................................................................................................... 38
3.8. (U)SIM Interface ..................................................................................................................... 40
3.9. USB Interface ......................................................................................................................... 42
3.10. UART Interfaces ..................................................................................................................... 44
3.11. PCM* and I2C* Interfaces ......................................................................................................
47
3.12. Network Status Indication ....................................................................................................... 48
3.13. STATUS ................................................................................................................................. 49
3.14. Behaviors of RI* ..................................................................................................................... 49
3.15. USB_BOOT Interface ............................................................................................................. 50
3.16. ADC Interfaces ....................................................................................................................... 51
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3.17. GPIO Interfaces ...................................................................................................................... 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 Antenna Interface .......................................................................................................... 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 Requirements ................................................................................................ 61
5.3.2. Recommended RF Connector for Antenna Installation ................................................ 62
6 Electrical, Reliability and Radio Characteristics .......................................................................... 64
6.1. Absolute Maximum Ratings .................................................................................................... 6
4
6.2. Power Supply Ratings ............................................................................................................ 64
6.3. Operation and Storage Temperatures .................................................................................... 65
6.4. RF Output Power .................................................................................................................... 65
6.5. RF Receiving Sensitivity ......................................................................................................... 66
6.6. Electrostatic Discharge ........................................................................................................... 67
7 Mechanical Dimensions.................................................................................................................. 69
7.1. Mechanical Dimensions of the Module ................................................................................... 69
7.2. Recommended Footprint ........................................................................................................ 71
7.3. Design Effect Drawings of the Module .................................................................................... 72
8 Storage, Manufacturing and Packaging ........................................................................................ 73
8.1. Storage ................................................................................................................................... 73
8.2. Manufacturing and Soldering .................................................................................................. 74
8.3. Packaging ............................................................................................................................... 75
9 Appendix A References .................................................................................................................. 77
10 Appendix B GPRS Coding Schemes ............................................................................................. 80
11 Appendix C GPRS Multi-slot Classes ............................................................................................
81
12 Appendix D EDGE Modulation and Coding Schemes .................................................................. 83
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Table Index
TABLE 1: VERSION SELECTION FOR BG95 SERIES MODULE ................................................................... 13
TABLE 2: FREQUENCY BANDS AND GNSS TYPES OF BG95 SERIES MODULE ...................................... 13
TABLE 3: KEY FEATURES OF BG95 SERIES MODULES ............................................................................. 16
TABLE 4: DEFINITION OF I/O PARAMETERS ................................................................................................ 22
TABLE 5: PIN DESCRIPTION ........................................................................................................................... 23
TABLE 6: OVERVIEW OF OPERATING MODES ............................................................................................ 30
TABLE 7: VBAT AND GND PINS ...................................................................................................................... 34
TABLE 8: PIN DEFINITION OF PWRKEY ........................................................................................................ 36
TABLE 9: PIN DEFINITION OF RESET_N ....................................................................................................... 38
TABLE 10: PIN DEFINITION OF (U)SIM INTERFACE ..................................................................................... 40
TABLE 11: PIN DEFINITION OF USB INTERFACE ......................................................................................... 42
TABLE 12: PIN DEFINITION OF MAIN UART INTERFACE ............................................................................ 44
TABLE 13: PIN DEFINITION OF DEBUG UART INTERFACE......................................................................... 45
TABLE 14: PIN DEFINITION OF GNSS UART INTERFACE ........................................................................... 45
TABLE 15: LOGIC LEVELS OF DIGITAL I/O ................................................................................................... 45
TABLE 16: PIN DEFINITION OF PCM AND I2C INTERFACES ...................................................................... 47
TABLE 17: PIN DEFINITION OF NETLIGHT .................................................................................................... 48
TABLE 18: WORKING STATE OF NETLIGHT ................................................................................................. 48
TABLE 19: PIN DEFINITION OF STATUS ....................................................................................................... 49
TABLE 20: DEFAULT BEHAVIORS OF RI ....................................................................................................... 50
TABLE 21: PIN DEFINITION OF USB_BOOT INTERFACE............................................................................. 50
TABLE 22: PIN DEFINITION OF ADC INTERFACE ......................................................................................... 51
TABLE 23: CHARACTERISTICS OF ADC INTERFACES ................................................................................ 52
TABLE 24: PIN DEFINITION OF GPIO INTERFACES ..................................................................................... 52
TABLE 25: LOGIC LEVELS OF GPIO INTERFACES ...................................................................................... 53
TABLE 26: GNSS PERFORMANCE ................................................................................................................. 54
TABLE 27: PIN DEFINITION OF MAIN ANTENNA INTERFACE ..................................................................... 56
TABLE 28: BG95 OPERATING FREQUENCY ................................................................................................. 56
TABLE 29: PIN DEFINITION OF GNSS ANTENNA INTERFACE .................................................................... 60
TABLE 30: GNSS FREQUENCY ...................................................................................................................... 60
TABLE 31: ANTENNA REQUIREMENTS ......................................................................................................... 61
TABLE 32: ABSOLUTE MAXIMUM RATINGS ................................................................................................. 64
TABLE 33: POWER SUPPLY RATINGS .......................................................................................................... 64
TABLE 34: OPERATION AND STORAGE TEMPERATURES ......................................................................... 65
TABLE 35: BG95 RF OUTPUT POWER ........................................................................................................... 66
TABLE 36: BG95 CONDUCTED RF RECEIVING SENSITIVITY ..................................................................... 66
TABLE 37: ELECTROSTATIC DISCHARGE CHARACTERISTICS (25ºC, 45% RELATIVE HUMIDITY) ....... 68
TABLE 38: RECOMMENDED THERMAL PROFILE PARAMETERS .............................................................. 74
TABLE 39: REEL PACKAGING ........................................................................................................................ 76
TABLE 40: RELATED DOCUMENTS ............................................................................................................... 77
TABLE 41: TERMS AND ABBREVIATIONS ..................................................................................................... 77
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TABLE 42: DESCRIPTION OF DIFFERENT CODING SCHEMES .................................................................. 80
TABLE 43: GPRS MULTI-SLOT CLASSES ...................................................................................................... 81
TABLE 44: EDGE MODULATION AND CODING SCHEMES .......................................................................... 83
BG95_Hardware_Design 6 / 80
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Figure Index
FIGURE 1: FUNCTIONAL DIAGRAM ............................................................................................................... 18
FIGURE 2: PIN ASSIGNMENT (TOP VIEW) .................................................................................................... 21
FIGURE 3: SLEEP MODE APPLICATION VIA UART ...................................................................................... 33
FIGURE 4: POWER SUPPLY LIMITS DURING BURST TRANSMISSION ..................................................... 34
FIGURE 5: STAR STRUCTURE OF THE POWER SUPPLY ........................................................................... 35
FIGURE 6: TURN ON THE MODULE USING DRIVING CIRCUIT ................................................................... 36
FIGURE 7: TURN ON THE MODULE USING KEYSTROKE ........................................................................... 36
FIGURE 8: TIMING OF TURNING ON MODULE ............................................................................................. 37
FIGURE 9: TIMING OF TURNING OFF MODULE ........................................................................................... 38
FIGURE 10: TIMING OF RESET MODULE ...................................................................................................... 39
FIGURE 11: REFERENCE CIRCUIT OF RESET_N BY USING DRIVING CIRCUIT ...................................... 39
FIGURE 12: REFERENCE CIRCUIT OF RESET_N BY USING BUTTON ...................................................... 39
FIGURE 13: REFERENCE CIRCUIT OF (U)SIM INTERFACE WITH AN 8-PIN (U)SIM CARD CONNECTOR
................................................................................................................................................................... 41
FIGURE 14: REFERENCE CIRCUIT OF (U)SIM INTERFACE WITH A 6-PIN (U)SIM CARD CONNECTOR 41
FIGURE 15: REFERENCE CIRCUIT OF USB INTERFACE ............................................................................ 43
FIGURE 16: REFERENCE CIRCUIT WITH TRANSLATOR CHIP ................................................................... 46
FIGURE 17: REFERENCE CIRCUIT WITH TRANSISTOR CIRCUIT .............................................................. 46
FIGURE 18: REFERENCE CIRCUIT OF PCM APPLICATION WITH AUDIO CODEC ................................... 47
FIGURE 19: REFERENCE CIRCUIT OF THE NETWORK STATUS INDICATOR .......................................... 48
FIGURE 20: REFERENCE CIRCUIT OF STATUS ........................................................................................... 49
FIGURE 21: REFERENCE CIRCUIT OF USB_BOOT INTERFACE ................................................................ 51
FIGURE 22: REFERENCE CIRCUIT OF RF ANTENNA INTERFACE ............................................................ 58
FIGURE 23: MICROSTRIP LINE DESIGN ON A 2-LAYER PCB ..................................................................... 58
FIGURE 24: COPLANAR WAVEGUIDE LINE DESIGN ON A 2-LAYER PCB ................................................. 59
FIGURE 25: COPLANAR WAVEGUIDE LINE DESIGN ON A 4-LAYER PCB (LAYER 3 AS REFERENCE
GROUND) .................................................................................................................................................. 59
FIGURE 26: COPLANAR WAVEGUIDE LINE DESIGN ON A 4-LAYER PCB (LAYER 4 AS REFERENCE
GROUND) .................................................................................................................................................. 59
FIGURE 27: REFERENCE CIRCUIT OF GNSS ANTENNA INTERFACE ....................................................... 61
FIGURE 28: DIMENSIONS OF THE U.FL-R-SMT CONNECTOR (UNIT: MM) ............................................... 62
FIGURE 29: MECHANICALS OF U.FL-LP CONNECTORS ............................................................................. 63
FIGURE 30: SPACE FACTOR OF MATED CONNECTOR (UNIT: MM) .......................................................... 63
FIGURE 31: MODULE TOP AND SIDE DIMENSIONS .................................................................................... 69
FIGURE 32: MODULE BOTTOM DIMENSIONS (BOTTOM VIEW) ................................................................. 70
FIGURE 33: RECOMMENDED FOOTPRINT (TOP VIEW) .............................................................................. 71
FIGURE 34: TOP VIEW OF THE MODULE ...................................................................................................... 72
FIGURE 35: BOTTOM VIEW OF THE MODULE .............................................................................................. 72
FIGURE 36: RECOMMENDED REFLOW SOLDERING THERMAL PROFILE ............................................... 74
FIGURE 37: TAPE DIMENSIONS ..................................................................................................................... 75
FIGURE 38: REEL DIMENSIONS ..................................................................................................................... 76
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LPWA Module Series
BG95 Hardware Design
1 Introduction
This document defines BG95 module and describes its air interface and hardware interfaces which are
connected with customers’ applications.
This document can help customers quickly understand the interface specifications, electrical and
mechanical details, as well as other related information of BG95. To facilitate its application in different
fields, reference design is also provided for customers’ reference. Associated with application notes and
user guides, customers can use the module to design and set up mobile applications easily.
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LPWA Module Series
BG95 Hardware Design
1.1. Safety Information
The following safety precautions must be observed during all phases of the operation, such as usage,
service or repair of any cellular terminal or mobile incorporating BG95. 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 fueling 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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1.2. FCC Certification Requirements.
According to the definition of mobile and fixed device is described in Part 2.1091(b), this device is a
mobile device.
And the following conditions must be met:
1. This Modular Approval is limited to OEM installation for mobile and fixed applications only. The antenna
installation and operating configurations of this transmitter, including any applicable source-based time-
averaging duty factor, antenna gain and cable loss must satisfy MPE categorical Exclusion Requirements
of 2.1091.
2. The EUT is a mobile device; maintain at least a 20 cm separation between the EUT and the user’s
body and must not transmit simultaneously with any other antenna or transmitter.
3.A label with the following statements must be attached to the host end product: This device contains
FCC ID: XMR201910BG96M3.
4.To comply with FCC regulations limiting both maximum RF output power and human exposure to RF
radiation, maximum antenna gain (including cable loss) must not exceed:
❒ GSM850 :≤8.571 dBi
❒ GSM1900 :≤10.030dBi
❒ Catm LTE Band2/25: ≤11.000dBi
❒ Catm LTE Band4/66: ≤8.000dBi
❒ Catm LTE Band5/26: ≤12.541dBi
❒ Catm LTE Band12/85: ≤11.798dBi
❒ Catm LTE Band13: ≤12.214dBi
❒ Catm LTE Band14: ≤12.272 dBi
❒ NB LTE Band2/25: ≤11.000dBi
❒ NB LTE Band4/66: ≤8.000dBi
❒ NB LTE Band5/26: ≤12.541dBi
❒ NB LTE Band12/85: ≤11.798dBi
❒ NB LTE Band13: ≤12.214dBi
❒ BNLTE Band14: ≤12.272 dBi
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LPWA Module Series
BG95 Hardware Design
❒ NB LTE Band71: ≤11.687 dBi
5. This module must not transmit simultaneously with any other antenna or transmitter
6. The host end product must include a user manual that clearly defines operating requirements and
conditions that must be observed to ensure compliance with current FCC RF exposure guidelines.
For portable devices, in addition to the conditions 3 through 6 described above, a separate approval is
required to satisfy the SAR requirements of FCC Part 2.1093
If the device is used for other equipment that separate approval is required for all other operating
configurations, including portable configurations with respect to 2.1093 and different antenna
configurations.
For this device, OEM integrators must be provided with labeling instructions of finished products.
Please refer to KDB784748 D01 v07, section 8. Page 6/7 last two paragraphs:
A certified modular has the option to use a permanently affixed label, or an electronic label. For a
permanently affixed label, the module must be labeled with an FCC ID - Section 2.926 (see 2.2
Certification (labeling requirements) above). The OEM manual must provide clear instructions
explaining to the OEM the labeling requirements, options and OEM user manual instructions that are
required (see next paragraph).
For a host using a certified modular with a standard fixed label, if (1) the module’s FCC ID is not visible
when installed in the host, or (2) if the host is marketed so that end users do not have straightforward
commonly used methods for access to remove the module so that the FCC ID of the module is visible;
then an additional permanent label referring to the enclosed module:“Contains Transmitter Module
FCC ID: XMR201910BG96M3” or “Contains FCC ID: XMR201910BG96M3” must be used. The host
OEM user manual must also contain clear instructions on how end users can find and/or access the
module and the FCC ID.
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The final host / module combination may also need to be evaluated against the FCC Part 15B criteria
for unintentional radiators in order to be properly authorized for operation as a Part 15 digital device.
The user’s manual or instruction manual for an intentional or unintentional radiator shall caution the
user that changes or modifications not expressly approved by the party responsible for compliance
could void the user's authority to operate the equipment. In cases where the manual is provided only in
a form other than paper, such as on a computer disk or over the Internet, the information required by
this section may be included in the manual in that alternative form, provided the user can reasonably be
expected to have the capability to access information in that form.
This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions:
(1) This device may not cause harmful interference, and (2) this device must accept any interference
received, including interference that may cause undesired operation.
Changes or modifications not expressly approved by the manufacturer could void the user’s authority to
operate the equipment.
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2 Product Concept
2.1. General Description
BG95 is a series of embedded IoT (LTE Cat M1, LTE Cat NB2 and EGPRS) wireless communication
module. It provides data connectivity on LTE-FDD/GPRS/EGPRS networks, and supports half-duplex
operation in LTE networks. It also provides GNSS
application demands.
1)
and voice 2) functionality to meet customers’ specific
Table 1: Version Selection for BG95 Series Module
Version Cat M1 VoLTE
BG95-M1
BG95-M2*
BG95-M3*
BG95-N1*
BG95-M4 4)
BG95-M5 4)
BG95-MF 4)
Y Y N N N Y
Y Y Y N N Y
Y Y Y Y N Y
N N Y N N Y
Y Y Y N N Y
Y Y Y N N Y
Y Y Y N Y Y
Cat NB2
NB1
3)
/
GSM
Table 2: Frequency Bands and GNSS Types of BG95 Series Module
Wi-Fi
Positioning
GNSS
(Optional)
Module Supported Bands LTE Bands Power Class GNSS (Optional)
Cat M1 Only:
LTE-FDD:
BG95-M1
BG95_Hardware_Design 13 / 80
B1/B2/B3/B4/B5/B8/B12/B13/
B14/B18/B19/B20/B25/B26*/B27/
B28/B66/B85
Power Class 5 (20dBm)
GPS,
GLONASS, BeiDou,
Galileo
BG95-M2*
BG95-M3*
BG95-N1*
BG95 Hardware Design
Cat M1:
LTE-FDD:
B1/B2/B3/B4/B5/B8/B12/B13/
B14/B18/B19/B20/B25/B26*/
B27/B28/B66/B85
Cat NB2:
LTE-FDD:
B1/B2/B3/B4/B5/B8/B12/B13/
B18/B19/B20/B25/B26*/B28/B66/
B71/B85
Cat M1:
LTE-FDD:
B1/B2/B3/B4/B5/B8/B12/B13/
B14/B18/B19/B20/B25/B26*/B27/
B28/B66/B85
Cat NB2:
LTE-FDD:
B1/B2/B3/B4/B5/B8/B12/B13/
B18/B19/B20/B25/B26*/
B28/B66/B71/B85
EGPRS:
850/900/1800/1900MHz
Cat NB2
Only:
LTE FDD:
B1/B2/B3/B4/B5/B8/B12/B13/
B18/B19/B20/B25/B26*/
B28/B66/B71/B85
Power Class 5 (20dBm)
Power Class 5 (20dBm)
Power Class 5 (20dBm)
LPWA Module Series
GPS,
GLONASS, BeiDou,
Galileo
GPS,
GLONASS, BeiDou,
Galileo
GPS,
GLONASS, BeiDou,
Galileo
BG95-M4 4)
BG95-M5 4)
Cat M1:
LTE-FDD:
B1/B2/B3/B4/B5/B8/B12/B13/
B14/B18/B19/B20/B25/B26/B27/
B28/B31/B66/B72/B73/B85
Cat NB2:
LTE-FDD:
B1/B2/B3/B4/B5/B8/B12/B13/
B18/B19/B20/B25/B26/B28/B31/
B66/B72/B73/B85
Cat M1:
LTE-FDD:
B1/B2/B3/B4/B5/B8/B12/B13/
B14/B18/B19/B20/B25/B26/B27/
B28/B66/B85
Cat NB2:
LTE-FDD:
Power Class 5 (20dBm)
Power Class 3 (23dBm)
GPS,
GLONASS, BeiDou,
Galileo
GPS,
GLONASS, BeiDou,
Galileo
BG95_Hardware_Design 14 / 80
BG95-MF 4)
BG95 Hardware Design
B1/B2/B3/B4/B5/B8/B12/B13/
B18/B19/B20/B25/B26/B28/B66/
B71/B85
Cat M1:
LTE-FDD:
B1/B2/B3/B4/B5/B8/B12/B13/
B14/B18/B19/B20/B25/B26/B27/
B28/B66/B85
Cat NB2:
LTE-FDD:
B1/B2/B3/B4/B5/B8/B12/B13/
B18/B19/B20/B25/B26/
B28/B66/B71/B85
Wi-Fi (For Positioning Only):
2.4GHz/5GHz
Power Class 5 (20dBm)
LPWA Module Series
GPS,
GLONASS, BeiDou,
Galileo
NOTES
1)
1.
GNSS function is optional.
2)
2.
BG95 series module supports VoLTE (Voice over LTE) under LTE Cat M1 and CS voice under
GSM.
3)
3.
LTE Cat NB2 is backward compatible with LTE Cat NB1.
4)
4.
BG95-M4/-M5/-MF are still under planning. Therefore, details of them are currently not included
and will be added in a future release of this document.
5. “*” means under development.
With a compact profile of 23.6mm × 19.9mm × 2.2mm, BG95 can meet almost all requirements for M2M
applications such as smart metering, tracking system, security, wireless POS, etc.
BG95 is an SMD type module which can be embedded into applications through its 102 LGA pads. It
supports 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 BG95 series modules.
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Table 3: Key Features of BG95 Series Modules
Features Details
BG95-M1/-M2/-N1:
Supply voltage: 2.4V~4.8V
Power Supply
Typical supply voltage: 3.3V
BG95-M3:
Supply voltage: 3.3V~4.3V
Typical supply voltage: 3.8V
Class 5 (20dBm±2dB) for LTE-FDD bands
Class 4 (33dBm±2dB) for GSM850
Class 4 (33dBm±2dB) for EGSM900
Class 1 (30dBm±2dB) for DCS1800
Transmitting Power
Class 1 (30dBm±2dB) for PCS1900
Class E2 (27dBm±3dB) for GSM850 8-PSK
Class E2 (27dBm±3dB) for EGSM900 8-PSK
Class E2 (26dBm±3dB) for DCS1800 8-PSK
Class E2 (26dBm±3dB) for PCS1900 8-PSK
LPWA Module Series
LTE Features
GSM Features
Internet Protocol
Features*
Support LTE Cat M1 and LTE Cat NB2
Support 1.4MHz RF bandwidth for LTE Cat M1
Support 200KHz RF bandwidth for LTE Cat NB2
Support SISO in DL direction
Cat M1: Max. 589Kbps (DL)/1.12Mbps (UL)
Cat NB2: Max. 136Kbps (DL)/150Kbps (UL)
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:
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)
Support PPP/TCP/UDP/SSL/TLS/FTP(S)/HTTP(S)/NITZ/PING/MQTT/
CoAP protocols
Support PAP (Password Authentication Protocol) and CHAP (Challenge
Handshake Authentication Protocol) protocols which are usually used for
PPP connections
Text and PDU mode
SMS
Point to point MO and MT
SMS cell broadcast
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BG95 Hardware Design
SMS storage: ME by default
(U)SIM Interface Support 1.8V USIM/SIM card
Audio Feature* Support one digital audio interface: PCM interface
Compliant with USB 2.0 specification (slave only)
Support operations at low-speed and full-speed
USB Interface
Used for AT command communication, data transmission, GNSS NMEA
output, software debugging and firmware upgrade
Support USB serial drivers for Windows 7/8/8.1/10, Linux 2.6/3.x (3.4 or
later)/4.1~4.15, Android 4.x/5.x/6.x/7.x/8.x/9.x
Main UART:
Used for data transmission and AT command communication
115200bps baud rate by default
The default frame format is 8N1 (8 data bits, no parity, 1 stop bit)
Support RTS and CTS hardware flow control
UART Interfaces
Debug UART:
Used for software debugging and log output
Support 115200bps baud rate
GNSS UART:
Used for GNSS data and NMEA sentences output
115200bps baud rate by default
LPWA Module Series
AT Commands
3GPP TS 27.007 and 3GPP TS 27.005 AT commands, as well as Quectel
enhanced AT commands
Network Indication One NETLIGHT pin for network connectivity status indication
Antenna Interfaces
Physical Characteristics
Temperature Range
Including main antenna (ANT_MAIN) and GNSS antenna (ANT_GNSS)
interfaces
Size: (23.6±0.15)mm × (19.9±0.15)mm × (2.2±0.2)mm
Weight: approx. 2.15g
1)
2)
Operation temperature range: -35°C ~ +75°C
Extended temperature range: -40°C ~ +85°C
Storage temperature range: -40°C ~ +90°C
Firmware Upgrade USB interface, DFOTA*
RoHS All hardware components are fully compliant with EU RoHS directive
NOTES
1. “*” means under development.
1)
2.
Within operation temperature range, the module is 3GPP compliant.
2)
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
BG95_Hardware_Design 17 / 80
LPWA Module Series
BG95 Hardware Design
are also no effects on radio spectrum and no harm to radio network. Only one or more parameters like
P
might reduce in their value and exceed the specified tolerances. When the temperature returns to
out
the normal operating temperature levels, the module will meet 3GPP specifications again.
2.3. Functional Diagram
The following figure shows a block diagram of BG95 and illustrates the major functional parts.
Power management
Baseband
Radio frequency
Peripheral interfaces
VBAT_RF
VBAT_BB
PWRKEY
RESET_N
PMIC
PA
(GSM)
Control
Tx
ANT_MAIN
(ASM)
Rx
Transceiver/PA/switch
IQ Control
ANT_GNSS
SAW
LNA
GNSS
Baseband
ADC1
ADC0
VDD_EXT
19.2 M
XO
USB
eSIM
(U)SIM PCM*
UARTs
I2C*
GPIOs
STATUS NETLIGHT
Figure 1: Functional Diagram
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LPWA Module Series
BG95 Hardware Design
NOTES
1. eSIM function is optional. If eSIM is selected, then the external (U)SIM cannot be used
simultaneously.
2. RESET_N will be supported in the next hardware design version.
3. ADC0 and ADC1 cannot be used simultaneously. BG95 supports using of only one ADC interface at a
time: either ADC0 or ADC1. Currently only ADC0 is enabled, and ADC1 will be enabled in the next
hardware design version.
4. “*” means under development.
2.4. Evaluation Board
In order to help customers to develop applications conveniently with BG95, Quectel supplies the
evaluation board (EVB), USB to RS-232 converter cable, USB data cable, earphone, antenna and other
peripherals to control or test the module. For more details, please refer to document [1] .
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LPWA Module Series
BG95 Hardware Design
3 Application Interfaces
BG95 is equipped with 102 LGA pads that can be connected to customers’ cellular application platforms.
The following sub-chapters will provide detailed description of interfaces listed below:
Power supply
(U)SIM interface
USB interface
UART interfaces
PCM* and I2C* interfaces
Status indication
USB_BOOT interface
ADC interfaces
GPIO interfaces
NOTE
“*” means under development.
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BG95 Hardware Design
3.1. Pin Assignment
The following figure shows the pin assignment of BG95.
LPWA Module Series
PS M_I ND*
ADC 1
GND
PCM _C LK*
PCM _SY NC*
PCM _I N*
PCM _OU T*
USB_VBUS
USB_DP
USB_DM
RESERVED
RESERVED
RESERVED
RESERVED
PW RKEY
GPIO 16
RESET_N
W_DI SA BLE# *
GND
62
GND
61
ANT _M AIN
60
GND
59
GND
RESERVED
58
RESERVED
56
GND
55
GND
54
1
1)
2
82 81
80 79
3
4
5
6
7
GPIO 64
63
64
102 101
83
84
100
99
8
GPIO 65
9
85
65
65
10
GPIO 66
11
12
13
86
66
67
87
68
88
14
2)
15
16
3)
17
89 90
69
91 92
71
70
72
18
RESERVED
VB AT_ RF
VB AT_ RF
53
98
97
96
95
94
93
52
51
78
77
76
USB_BOOT
75
74
73
GND
50
49
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
ANT _G NSS
GND
USIM_GND
USIM_CLK
USIM_DATA
USIM_RST
USIM_VDD
USIM_PRESENCE*
I2C_SDA*
I2C_SCL*
RI
DCD
RTS
CTS
TXD
RXD
VB AT_ BB
VB AT_ BB
19
AP _R EAD Y*
PO WER USB UART
20
ST ATU S
NETLIGHT
21
22
DBG_RXD
(U)SIM
23
DBG_TXD
24 57
1)
ADC 0
PCM
25
GPIO 25
26
30
DTR
GPIO 26
GNSS _UART_T XD
GN SS_U ART _R XD
ANT
GND
VDD _EX T
GND
RESERVED
OTHE RS
31
29
28
27
Figure 2: Pin Assignment (Top View)
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LPWA Module Series
BG95 Hardware Design
NOTES
1)
1.
ADC0 and ADC1 cannot be used simultaneously. BG95 supports using of only one ADC interface
at a time: either ADC0 or ADC1. Currently only ADC0 is enabled, and ADC1 will be enabled in the
next hardware design version.
2)
2.
PWRKEY output voltage is 1.5V because of the diode drop in the Qualcomm chipset. PWRKEY
should never be pulled down to GND permanently.
3. 3) RESET_N will be supported in the next hardware design version.
4. Keep all RESERVED pins and unused pins unconnected.
5. GND pins should be connected to ground in the design.
6. “*” means under development.
3.2. Pin Description
The following tables show the pin definition and description of BG95.
Table 4: Definition of I/O Parameters
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
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LPWA Module Series
BG95 Hardware Design
Table 5: Pin Description
Power Supply
Pin Name Pin No. I/O Description DC Characteristics Comment
BG95-M1/-M2/-N1:
Vmax=4.8V
Vmin=2.4V
Power supply
VBAT_BB 32, 33 PI
for the module’s
baseband part
Vnorm=3.3V
BG95-M3:
Vmax=4.3V
Vmin=3.3V
Vnorm=3.8V
BG95-M1/-M2/-N1:
Vmax=4.8V
Vmin=2.4V
Power supply
VBAT_RF 52, 53 PI
for the module’s
RF part
Vnorm=3.3V
BG95-M3:
Vmax=4.3V
Vmin=3.3V
Vnorm=3.8V
1.8V output
VDD_EXT 29 PO
power supply
for external
circuit
Vnorm=1.8V
I
max=50mA
O
Power supply for
external GPIO’s
pull-up circuits.
If unused, keep this
pin open.
3, 31, 48,
50, 54, 55,
58, 59, 61,
GND
62, 67~74,
Ground
79~82,
89~91,
100~102
Turn on/off
Pin Name Pin No. I/O Description DC Characteristics Comment
The output voltage is
1.5V because of the
diode drop in the
Qualcomm chipset.
PWRKEY 1) 15 DI
Turn on/off the
module
Vnorm=1.5V
V
max=0.45V
IL
PWRKEY should
BG95_Hardware_Design 23 / 80
LPWA Module Series
BG95 Hardware Design
never be pulled down
to GND permanently.
Reset
Pin Name Pin No. I/O Description DC Characteristics Comment
RESET_N will be
RESET_N 2) 17 DI
Reset the
module
V
max=0.45V
IL
supported in the next
hardware design
version.
Status Indication
Pin Name Pin No. I/O Description DC Characteristics Comment
Indicate the
STATUS 20 DO
module’s
operation
status
Indicate the
NETLIGHT 21 DO
module’s
network activity
status
V
min=1.35V
OH
V
max=0.45V
OL
V
min=1.35V
OH
V
max=0.45V
OL
1.8V power domain.
If unused, keep this
pin open.
1.8V power domain.
If unused, keep this
pin open.
USB Interface
Pin Name Pin No. I/O Description DC Characteristics Comment
Vmax=5.25V
USB_VBUS 8 PI USB detection
Vmin=3.0V
Vnorm=5.0V
USB_DP 9 IO
USB differential
data bus (+)
Compliant with USB
2.0 standard
specification.
USB_DM 10 IO
USB differential
data bus (-)
Require differential
impedance of 90Ω.
(U)SIM Interface
Pin Name Pin No. I/O Description DC Characteristics Comment
V
min=-0.3V
USIM_
PRESENCE*
42 DI
USIM_VDD 43 PO
(U)SIM card
insertion
detection
Power supply
for (U)SIM card
USIM_RST 44 DO Reset signal of V
IL
V
max=0.6V
IL
V
min=1.2V
IH
V
max=2.0V
IH
Vmax=1.9V
Vmin=1.7V
max=0.45V
OL
1.8V power domain.
If unused, keep this
pin open.
Only 1.8V (U)SIM
card is supported.
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LPWA Module Series
BG95 Hardware Design
(U)SIM card VOHmin=1.35V
V
min=-0.3V
IL
V
max=0.6V
IL
USIM_DATA 45 IO
USIM_CLK 46 DO
Data signal of
(U)SIM card
Clock signal of
(U)SIM card
V
min=1.2V
IH
V
max=2.0V
IH
V
max=0.45V
OL
V
min=1.35V
OH
V
max=0.45V
OL
V
min=1.35V
OH
Specified
USIM_GND 47
ground for
(U)SIM card
Main UART Interface
Pin Name Pin No. I/O Description DC Characteristics Comment
V
min=-0.3V
Data terminal
DTR 30 DI
ready (sleep
mode control)
RXD 34 DI Receive data
TXD 35 DO Transmit data
CTS 36 DO Clear to send
RTS 37 DI
DCD 38 DO
Request to
send
Data carrier
detection
IL
V
max=0.6V
IL
V
min=1.2V
IH
V
max=2.0V
IH
V
min=-0.3V
IL
V
max=0.6V
IL
V
min=1.2V
IH
V
max=2.0V
IH
V
max=0.45V
OL
V
min=1.35V
OH
V
max=0.45V
OL
V
min=1.35V
OH
V
min=-0.3V
IL
V
max=0.6V
IL
V
min=1.2V
IH
V
max=2.0V
IH
V
max=0.45V
OL
V
min=1.35V
OH
1.8V power domain.
If unused, keep this
pin open.
1.8V power domain.
If unused, keep this
pin open.
1.8V power domain.
If unused, keep this
pin open.
1.8V power domain.
If unused, keep this
pin open.
1.8V power domain.
If unused, keep this
pin open.
1.8V power domain.
If unused, keep this
pin open.
1.8V power domain.
If unused, keep this
pin open.
RI 39 DO
Ring indication
signal
V
max=0.45V
OL
V
min=1.35V
OH
Debug UART Interface
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