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Quectel EM05, Hardware Design

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Quectel EM05 Hardware Design Download Page 13

                                                                       

LTE  Module  Series 

                                                            EM05  Hardware  Design

 

 

EM05_Hardware_Design                                          Confidential / Released                                        12 / 59 

 
 

 

2.3. Functional Diagram 

 

The following figure shows a block diagram of EM05. 

Baseband

PMIC

T

ra

ns

ce

iv

er

PA

Switch

LNA

Switch

ANT_MAIN

ANT_DIV

ANT_GNSS

A

P

T

VCC

RESET#

19.2M

XO

SAW

C

on

tr

ol

IQ

Control

Filter

SAW

Tx

PRx

DRx

P

C

I E

xp

re

ss

 M

.2

 K

ey

-B

 in

te

rf

ac

e

FULL_CARD_POWER_OFF#

W_DISABLE1#

USB2.0

USIM

LED#

WOWWAN#

NAND +

DDR2 SDRAM

PCM

 

Figure 1: Functional Diagram 

 

 

 

Quectel 

Confidential

Summary of Contents for EM05

Page 1: ...EM05 Hardware Design LTE Module Series Rev EM05_Hardware_Design_V1 0 Date 2017 09 22 www quectel com ...

Page 2: ...IDED IS BASED UPON CUSTOMERS REQUIREMENTS QUECTEL MAKES EVERY EFFORT TO ENSURE THE QUALITY OF THE INFORMATION IT MAKES AVAILABLE QUECTEL DOES NOT MAKE ANY WARRANTY AS TO THE INFORMATION CONTAINED HEREIN AND DOES NOT ACCEPT ANY LIABILITY FOR ANY INJURY LOSS OR DAMAGE OF ANY KIND INCURRED BY USE OF OR RELIANCE UPON THE INFORMATION ALL INFORMATION SUPPLIED HEREIN IS SUBJECT TO CHANGE WITHOUT PRIOR NO...

Page 3: ...odule Series EM05 Hardware Design EM05_Hardware_Design Confidential Released 2 59 About the Document History Revision Date Author Description 1 0 2017 09 22 Yeoman CHEN Daryl DU Initial Quectel Confidential ...

Page 4: ... Suspend Resume and WOWWAN Functions 20 3 4 2 Airplane Mode 21 3 5 Power Supply 22 3 5 1 Decrease Voltage Drop 22 3 5 2 Reference Design for Power Supply 23 3 5 3 Monitor the Power Supply 24 3 6 Turn on and off Scenarios 24 3 6 1 Turn on the Module Using the FUL_CARD_POWER_OFF 24 3 6 2 Turn off the Module 26 3 6 2 1 Turn off the Module Using the FUL_CARD_POWER_OFF Pin 26 3 6 2 2 Turn off the Modul...

Page 5: ...ility and Radio Characteristics 46 6 1 Absolute Maximum Ratings 46 6 2 Power Supply Requirements 46 6 3 I O Requirements 47 6 4 Operating Temperature 47 6 5 Current Consumption 48 6 6 RF Output Power 50 6 7 RF Receiving Sensitivity 51 6 8 ESD Characteristics 52 6 9 Thermal Consideration 52 7 Mechanical Dimensions and Packaging 54 7 1 Mechanical Dimensions of the Module 54 7 2 Standard Dimensions o...

Page 6: ...IONS OF LED SIGNAL 37 TABLE 15 STATE OF THE WOWWAN SIGNAL 37 TABLE 16 FUNCTION OF THE DPR SIGNAL 38 TABLE 17 PIN DEFINITION OF CONFIGURATION PINS 39 TABLE 18 LIST OF CONFIGURATION PINS 39 TABLE 19 MODULE OPERATING FREQUENCIES 41 TABLE 20 GNSS FREQUENCY 42 TABLE 21 ANTENNA REQUIREMENTS 42 TABLE 22 MAJOR SPECIFICATIONS OF MM4829 2702 CONNECTOR 43 TABLE 23 ABSOLUTE MAXIMUM RATINGS 46 TABLE 24 POWER S...

Page 7: ... SIM CARD CONNECTOR 30 FIGURE 17 REFERENCE CIRCUIT OF NORMALLY OPEN U SIM CARD CONNECTOR 30 FIGURE 18 REFERENCE CIRCUIT OF A 6 PIN U SIM CARD CONNECTOR 31 FIGURE 19 REFERENCE CIRCUIT OF USB INTERFACE 32 FIGURE 20 PRIMARY MODE TIMING 33 FIGURE 21 AUXILIARY MODE TIMING 34 FIGURE 22 REFERENCE CIRCUIT OF PCM APPLICATION WITH AUDIO CODEC 35 FIGURE 23 LED SIGNAL REFERENCE CIRCUIT DIAGRAM 36 FIGURE 24 WO...

Page 8: ...ications This document can help customers to quickly understand the interface specifications electrical and mechanical details as well as other related information of EM05 module To facilitate its application in different fields reference design is also provided for customers reference Associated with application note and user guide customers can use the module to design and set up mobile applicat...

Page 9: ...ing 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 guarantee...

Page 10: ...omers can select a dedicated type based on the region or operator The following table shows the frequency bands of EM05 series module Table 1 Frequency Bands of EM05 Series Module EM05 can be applied in the following fields Rugged Tablet PC and Laptop Computer Remote Monitor System Handheld mobile device Wireless POS System Smart Metering System Other Wireless Terminal Devices Modules LTE Bands WC...

Page 11: ...eatures 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 CDMA2000 Features Support 3GPP2 CDMA2000 1X Advanced CDMA2000 1x EV DO Rev A EVDO Max 3 1Mbps DL 1 8Mbps UL 1X Advanced Max 307 2Kbps DL 307 2Kbps UL Internet Protocol Features Support TCP UDP PPP FTP HTTP NTP PING QM...

Page 12: ...ation 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 firmware upgrade software debugging and GNSS NMEA output Support USB drivers for Windows XP Windows Vista Windows 7 Windows 8 8 1 Windows 10 WinCE 5 0...

Page 13: ...ure shows a block diagram of EM05 Baseband PMIC Transceiver PA Switch LNA Switch ANT_MAIN ANT_DIV ANT_GNSS APT VCC RESET 19 2M XO SAW Control IQ Control Filter SAW Tx PRx DRx PCI Express M 2 Key B interface FULL_CARD_POWER_OFF W_DISABLE1 USB2 0 USIM LED WOWWAN NAND DDR2 SDRAM PCM Figure 1 Functional Diagram Quectel Confidential ...

Page 14: ...ical connections and signal levels of EM05 comply with PCI Express M 2 specifications This chapter mainly describes the definition and application of the following interfaces of EM05 Power supply U SIM card interface USB interface PCM and I2C interface Control and indicator signals Configuration pins Quectel Confidential ...

Page 15: ...5 GND 33 NC 31 NC 29 GND 27 DPR 25 WOWWAN 23 CONFIG_0 21 Notch Notch Notch Notch GND 11 USB_DM 9 USB_DP 7 GND 5 GND 3 CONFIG_3 1 No Pin Name 74 VCC 72 VCC 70 VCC 68 NC 66 USIM_DET 64 RESERVED 62 RESERVED 60 NC 58 NC 56 NC 54 NC 52 NC 50 NC 48 TX_BLANKING 46 RESERVED 44 GNSS_IRQ 42 I2C_SDA 40 I2C_SCL 38 NC 36 USIM_VDD 34 USIM_DATA 32 USIM_CLK 30 USIM_RESET 28 PCM_SYNC 26 W_DISABLE2 24 PCM_OUT 22 PC...

Page 16: ...ut Pin No M 2 Socket 2 SSIC Pinout EM05 Pin Name I O Description Comment 1 CONFIG_3 CONFIG_3 Connected to GND internally EM05 is configured as WWAN SSIC 0 2 3 3V VCC PI Power supply 3 135V 4 4V 3 GND GND Ground 4 3 3V VCC PI Power supply 3 135V 4 4V 5 GND GND Ground 6 FUL_CARD_ POWER_OFF FUL_CARD_ POWER_OFF DI A signal control to power on off the module When it is at low level the module powers of...

Page 17: ... Key Notch Notch 17 Key Notch Notch 18 Key Notch Notch 19 Key Notch Notch 20 GPIO_5 AUDIO_0 PCM_CLK IO PCM clock In master mode it is an output signal In slave mode it is an input signal If unused keep it open 1 8V 21 CONFIG_0 CONFIG_0 Unconnected internally EM05 is configured as WWAN SSIC 0 22 GPIO_6 AUDIO_1 PCM_IN DI PCM data input 1 8V 23 GPIO_11 WAKE_ON_ WWAN WOWWAN OD A signal to wake up the ...

Page 18: ...SSIC RxN NC NC 36 UIM PWR USIM_VDD PO Power supply for U SIM card 1 8V 3 0V 37 SSIC RxP NC NC 38 N C NC NC 39 GND GND Ground 40 GPIO_0 GNSS_SCL I2C_SCL DO I2C serial clock Used for external codec Pulled up to 1 8V internally 41 N C NC NC 42 GPIO_1 GNSS_SDA I2C_SDA IO I2C serial data Used for external codec Pulled up to 1 8V internally 43 N C NC NC 44 GPIO_2 GNSS_IRQ GNSS_IRQ DI 1 8V 45 GND GND Gro...

Page 19: ...D Reserved 65 ANTCTL3 RESERVED Reserved 66 SIM_DETECT USIM_DET DI U SIM card insertion detection 1 8V 67 RESET RESET DI Reset the module Active low 1 8V 68 SUSCLK 32kHz NC NC 69 CONFIG_1 CONFIG_1 Connected to GND internally EM05 is configured as WWAN SSIC 0 70 3 3V VCC PI Power supply 3 135V 4 4V 71 GND GND Ground 72 3 3V VCC PI Power supply 3 135V 4 4V 73 GND GND Ground 74 3 3V VCC PI Power suppl...

Page 20: ...ork 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_DIS...

Page 21: ...ost USB_DP USB_DM USB_DP USB_DM Module Host GND GND Figure 3 Sleep Mode Application with USB Remote Wakeup Sending data to EM05 through USB will wake up the module When EM05 has a URC to report the module will send remote wake up signals via USB bus so as to wake up the host 3 4 1 2 USB Application with USB Suspend Resume and WOWWAN Functions If the host supports USB suspend resume but does not su...

Page 22: ...l be inaccessible This mode can be set via the following ways Hardware The W_DISABLE1 pin is pulled up by default driving it to low level will let the module enter into airplane mode Software AT CFUN command provides the choice of the functionality level AT CFUN 0 Minimum functionality mode both U SIM and RF functions are disabled AT CFUN 1 Full functionality mode by default AT CFUN 4 Airplane mod...

Page 23: ...SR ESR 0 7Ω should be used and a multi layer ceramic chip capacitor MLCC array should also be reserved due to its ultra low ESR It is recommended to use three ceramic capacitors 100nF 33pF 10pF for composing the MLCC array and place these capacitors close to VCC pins The main power supply from an external application has to be a single voltage source The width of VCC trace should be no less than 2...

Page 24: ...ere is a big voltage difference between the input source and the desired output VCC a buck converter is preferred to be used as the power supply The following figure shows a reference design for 5V input power source The typical output of the power supply is about 3 3V and the maximum load current is 3A LDO_IN C1 C2 MIC29302WU U1 IN OUT EN GND ADJ 2 4 1 3 5 3 3V 100nF C3 470uF C4 100nF R2 82K 1 47...

Page 25: ...off When it is at high level the module powers on It is pulled to low level internally For 1 8V VIHmax 2 1V VIHmin 1 19V VILmax 0 5V For 3 3V VIHmax 3 6V VIHmin 2 0V VILmax 0 8V Pulled down internally EM05 can be turned on by driving the FUL_CARD_POWER_OFF pin to a high level It is recommended to use a GPIO from host to control the FUL_CARD_POWER_OFF A simple reference circuit is illustrated in th...

Page 26: ... 3V Figure 9 Turn on the Module Automatically The turn on scenario is illustrated in the following figure VIL 0 2V VIH 1 19V VCC FUL_CARD_POWER_OFF RESET_N Booting Active Module State NOTE 12s OFF Figure 10 Timing of Turning on Module Please make sure that VCC is stable before pulling up FUL_CARD_POWER_OFF pin The time between them is no less than 30ms NOTE Quectel Confidential ...

Page 27: ... module will be forced to shut down But this may damage the internal flash it is recommended to drive the FUL_CARD_POWER_OFF pin to low after pulling down RESET for about 100ms The power down scenario is illustrated in the following figure VCC FUL_CARD_POWER_OFF 100ms RUNNING PMIC RESET OFF Module Status RESET Figure 11 Timing of Turning off the Module Through FUL_CARD_POWER_OFF 3 6 2 2 Turn off t...

Page 28: ...k and save important data After the module is logged off it sends POWERED DOWN and shuts down the internal power supply If the POWERED DOWN URC is outputted then the power on VCC pins can be cut off 3 7 Reset the Module The RESET pin can be used to reset the module The module can enter into reset state by driving RESET to a low level voltage for 150ms 460ms Table 8 RESET_N Pin Description An open ...

Page 29: ...ng Driving Circuit RESET S2 Close to S2 TVS Figure 14 Reference Circuit of RESET by Using Button The reset scenario is illustrated in the following figure VIL 0 5V VIH 1 3V VCC 150ms Resetting Module Status Running RESET Restart 460ms Figure 15 Timing of Resetting Module Please ensure that there is no large capacitance on RESET pin NOTE Quectel Confidential ...

Page 30: ... 30 DO Reset signal of U SIM card USIM_DET 66 DI U SIM card insertion detection Active high Pulled up to 1 8V internally When U SIM card is present it is at high level pulled up to 1 8V When U SIM card is absent it is at low level EM05 supports U SIM card hot plug via the USIM_DET pin which is a level trigger pin The USIM_DET is normally short circuited to ground when U SIM card is not inserted Wh...

Page 31: ...ly Short Circuited U SIM Card Connector Normally Short Circuited U SIM Card Connector When the U SIM is absent CD is short circuited to SW and USIM_DET is at low level When the U SIM is inserted CD is open to SW and USIM_DET is at high level The following figure shows a reference design for normally open U SIM card connector Module USIM_VDD USIM_RST USIM_CLK USIM_DATA USIM_DET 0R 0R 0R 100nF U SIM...

Page 32: ...odule as close as possible Keep the trace length as less than 200mm as possible Keep U SIM card signals away from RF and VCC traces Assure the ground between the module and the U SIM card connector short and wide Keep the trace width of ground and USIM_VDD no less than 0 5mm to maintain the same electric potential To avoid cross talk between USIM_DATA and USIM_CLK keep them away from each other an...

Page 33: ...oints ESD Array NM_0R NM_0R 0R 0R Minimize these stubs Module MCU Figure 19 Reference Circuit of USB Interface In order to ensure the integrity of USB data line signal R1 R2 R3 and R4 components must be placed close to the module and also these resistors should be placed close to each other The extra stubs of trace must be as short as possible In order to ensure the USB interface design correspond...

Page 34: ...upports the following modes Primary mode short frame synchronization works as both master and slave Auxiliary mode long frame synchronization works as master only In primary mode the data is sampled on the falling edge of the PCM_CLK and transmitted on the rising edge The PCM_SYNC falling edge represents the MSB In this mode PCM_CLK supports 128kHz 256kHz 512kHz 1024kHz and 2048kHz for different s...

Page 35: ... PCM_IN 22 DI PCM data input 1 8V power domain PCM_OUT 24 DO PCM data output 1 8V power domain PCM_SYNC 28 IO PCM data frame synchronization signal 1 8V power domain PCM_CLK 20 IO PCM data bit clock 1 8V power domain I2C_SCL 40 DO I2C serial clock Pulled up to 1 8V internally I2C_SDA 42 IO I2C serial data Pulled up to 1 8V internally Clock and mode can be configured by AT command and the default c...

Page 36: ...the PCM lines especially for PCM_CLK 3 EM05 works as a master device pertaining to I2C interface 4 EM05 CML does not support I2C interface 3 11 Control and Indicator Signals The following table shows the pin definition of control and indicator signals Table 12 Pin Definition of Control and Indicator Signals Pin No Pin Name I O Power Domain Description 8 W_DISABLE1 DI 3 3V Airplane mode control Act...

Page 37: ...al of EM05 is used to indicate the RF status of the module which can absorb the current up to 40mA According to the following circuit in order to reduce the current of the LED a resistor must be placed in series with the LED The LED is emitting light when the LED output signal is active low LED VCC R Figure 23 LED Signal Reference Circuit Diagram The following table shows the RF status indications...

Page 38: ...WAN signal is shown as below Table 15 State of the WOWWAN Signal Wake up the host 1s High Low external pull up Figure 24 WOWWAN Behavior LED Description Low Level Light on RF function is turned on High impedance Light off RF function is turned off if any of the following circumstances occurs The card is not powered W_DISABLE1 signal is at low level Disable the RF AT CFUN 0 AT CFUN 4 No WOWWAN Oper...

Page 39: ... DPR Dynamic Power Reduction for body SAR detection The signal is sent by a host system proximity sensor to the wireless device to provide an input trigger which will reduce output power in the radio transmit Table 16 Function of the DPR Signal means under development No DPR Function 1 High Floating Max Tx power will NOT be backed off 2 Low Max Tx power will be backed off by executing AT commands ...

Page 40: ...tion of Configuration Pins The 4 configuration pins on EM05 module are defined as below Table 18 List of Configuration Pins Pin No Pin Name Description 1 CONFIG_3 Connected to GND internally 21 CONFIG_0 NC 69 CONFIG_1 Connected to GND internally 75 CONFIG_2 Connected to GND internally Config_0 Pin 21 Config_1 Pin 69 Config_2 Pin 75 Config_3 Pin 1 Module Type and Main Host Interface Port Configurat...

Page 41: ...olution that supports Gen8C Lite of Qualcomm GPS GLONASS BeiDou Galileo and QZSS EM05 supports standard NMEA 0183 protocol and outputs NMEA sentences at 1Hz data update rate via USB interface by default By default EM05 GNSS engine is switched off It has to be switched on via AT command For more details about GNSS engine technology and configurations please refer to document 3 Quectel Confidential ...

Page 42: ...t and a GNSS antenna interface The antenna interfaces have an impedance of 50Ω And the GNSS antenna interface is optional The antenna interfaces are shown below Figure 26 RF Antenna Connectors 5 1 Main Rx diversity Antenna Interfaces Table 19 Module Operating Frequencies 3GPP Band Transmit Receive Unit B1 1920 1980 2110 2170 MHz B3 1710 1785 1805 1880 MHz B5 824 849 869 894 MHz BC0 824 849 869 894...

Page 43: ...023 MHz GLONASS 1597 5 1605 8 MHz BeiDou 1561 098 2 046 MHz 5 3 Antenna Installation 5 3 1 Antenna Requirement The following table shows the requirements on main antenna Rx diversity antenna and GNSS antenna Table 21 Antenna Requirements Type Requirements GNSS Frequency range 1561MHz 1615MHz Polarization RHCP or linear VSWR 2 Typ Passive antenna gain 0dBi Active antenna noise figure 1 5dB Active a...

Page 44: ... Recommended RF Connector for Antenna Installation EM05 supports antenna connection via buckled RF connectors Buckled RF connector MM4829 2702 supplied by MURATA or other equivalent connectors are recommended The dimensions of MM4829 2702 connector are shown as below Figure 27 Dimensions of the MM4829 2702 Connector Unit mm Table 22 Major Specifications of MM4829 2702 Connector Item Specification ...

Page 45: ...d in conjunction with EM05 can be two types of mating plugs that meet a maximum height of 1 2mm using a Ø 0 81mm coax cable or a maximum height of 1 45mm utilizing a Ø 1 13mm coax cable The following figure shows the specifications of 0 81mm coaxial cable mating the recommended RF connector Figure 28 Specifications of 0 81mm Coaxial Cable Figure 29 Connection between the RF Connector and the 0 81m...

Page 46: ...Hardware_Design Confidential Released 45 59 The following figure shows the specifications of 1 13mm coaxial cable mating the recommended RF connector Figure 30 Connection between the RF Connector and the 1 13mm Coaxial Cable Quectel Confidential ...

Page 47: ...module are listed in the following table Table 23 Absolute Maximum Ratings Parameter Min Max Unit VCC 0 3 4 7 V Peak Current of VCC 0 1 0 A Voltage at Digital Pins 0 3 2 3 V 6 2 Power Supply Requirements The input voltage of EM05 is 3 3V 5 as specified by document 1 The following table shows the power supply requirements of EM05 Table 24 Power Supply Requirements Parameter Description Min Typ Max ...

Page 48: ...rature 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 the normal operating temperature lev...

Page 49: ... PF 128 3 0 mA WCDMA PF 256 2 8 mA FDD LTE PF 64 3 9 mA FDD LTE PF 128 3 3 mA TDD LTE PF 256 3 0 mA TDD LTE PF 64 3 9 mA TDD LTE PF 128 3 3 mA TDD LTE PF 128 2 9 mA Idle state AT CFUN 0 USB connected 25 0 mA WCDMA PF 64 USB connected 28 0 mA WCDMA PF 64 USB disconnected 18 0 mA BC0 SCI 1 USB connected 31 0 mA FDD LTE PF 64 USB connected 29 0 mA FDD LTE PF 64 USB disconnected 19 0 mA TDD LTE PF 64 ...

Page 50: ...LTE FDD B5 23 04dBm 640 0 mA LTE FDD B8 23 45dBm 640 0 mA LTE TDD B38 23 41dBm 400 0 mA LTE TDD B39 23 41dBm 295 0 mA LTE TDD B40 23 17dBm 430 0 mA LTE TDD B41 23 37dBm 390 0 mA WCDMA voice call WCDMA B1 22 89dBm 600 0 mA WCDMA B8 22 82dBm 550 0 mA CDMA voice call BC0 Max Power 23 93dBm 598 0 mA BC0 Min Power 60 07dBm 123 0 mA Parameter Description Conditions Typ Unit IVcc OFF state Power down 5 u...

Page 51: ...onnected 25 0 mA FDD LTE PF 64 USB connected 29 0 mA FDD LTE PF 64 USB disconnected 19 0 mA TDD LTE PF 64 USB connected 29 0 mA TDD LTE PF 64 USB disconnected 19 0 mA LTE data transfer GNSS OFF LTE TDD B38 23dBm 400 0 mA LTE TDD B39 23dBm 295 0 mA LTE TDD B40 23dBm 430 0 mA LTE TDD B41 23dBm 390 0 mA Frequency Max Min LTE FDD Bands 23dBm 2dB 44dBm LTE TDD Bands 23dBm 2dB 44dBm CDMA Band 24dBm 2 1d...

Page 52: ... 96 3dBm LTE TDD B40 10M 98 0dBm 98 2dBm 101 3dBm 96 3dBm LTE TDD B41 10M 97 5dBm 99 0dBm 101 0dBm 94 3dBm Frequency Primary Diversity SIMO 3GPP SIMO LTE TDD B38 10M 97 5dBm 99 0dBm 101 2dBm 96 3dBm LTE TDD B39 10M 99 0dBm 100 2dBm 102 5dBm 96 3dBm LTE TDD B40 10M 98 0dBm 98 2dBm 101 3dBm 96 3dBm LTE TDD B41 10M 97 5dBm 99 0dBm 101 0dBm 94 3dBm LTE FDD B1 10M 98 5dBm 99 0dBm 101 7dBm 97 0dBm LTE F...

Page 53: ...nder extended temperatures or extreme conditions such as with maximum power or data rate etc for a long time it is strongly recommended to add a heat sink a thermal compound or pad must be used between the module and the metal heat sink between the module and the main PCB for thermal dissipation Please add ground vias as many as possible on PCB for better heat dissipation It is NOT recommended to ...

Page 54: ...Dissipation Area on Bottom Side of the Module The table below shows the heat dissipation performance after adding a heat sink between the module and the main PCB Table 33 Heat Dissipation Performance The test condition is under ambient temperature 70 C with LTE Band 8 BW 20M and max power Scenario Testing Time Temperature Baseband PA Unit No heat sink 15 minutes 112 112 C Add a heat sink 15 minute...

Page 55: ...Packaging This chapter mainly describes mechanical dimensions and packaging specifications of EM05 module All dimensions are measured in mm and the tolerances for dimensions without tolerance values are 0 05mm 7 1 Mechanical Dimensions of the Module Figure 32 Mechanical Dimensions of EM05 Unit mm Quectel Confidential ...

Page 56: ...wing figure shows the standard dimensions of M 2 PCI Express Please refer to document 1 for details Figure 33 Standard Dimensions of M 2 Type 3042 S3 Unit mm According to M 2 nomenclature EM05 is Type 3042 S3 B 30 0mm 42 0mm max component height on the top is 1 5mm and single sided key ID is B Figure 34 M 2 Nomenclature Quectel Confidential ...

Page 57: ...leased 56 59 7 3 Design Effect Drawings of the Module Figure 35 Top View of the Module Figure 36 Bottom View of the Module These are design effect drawings of EM05 module For more accurate pictures please refer to the module that you get from Quectel NOTE Quectel Confidential ...

Page 58: ...9 7 4 M 2 Connector EM05 adopts a standard PCI Express M 2 connector which compiles with the directives and standards listed in the document 1 7 5 Packaging The EM05 is packaged in tray Each tray contains 10pcs of modules The smallest package of EM05 contains 100pcs Quectel Confidential ...

Page 59: ...l GNSS AT Commands Manual for EC25 EC21 EC20 EG95 EG91 and EM05 modules Abbreviation Description bps Bits Per Second DC HSPA Dual carrier High Speed Packet Access DFOTA Delta Firmware Upgrade Over The Air DL Down Link ESD Electrostatic Discharge FDD Frequency Division Duplexing GLONASS GLObalnaya Navigatsionnaya Sputnikovaya Sistema the Russian Global Navigation Satellite System GNSS Global Naviga...

Page 60: ...C Multiplayer Ceramic Chip Capacitor MMS Multimedia Messaging Service MO Mobile Originated MT Mobile Terminated PDU Protocol Data Unit PPP Point to Point Protocol RF Radio Frequency Rx Receive SAR Specific Absorption Rate SMS Short Message Service Tx Transmit UART Universal Asynchronous Receiver Transmitter UL Up Link URC Unsolicited Result Code U SIM Universal Subscriber Identification Module CDM...

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