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LTE Standard Module Series

EG91 Series Hardware Design

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2

Product Concept

2.1. General Description

EG91 series module is an embedded 4G wireless communication module with receive diversity. It
supports LTE-FDD/WCDMA/GSM wireless communication, and provides data connectivity on LTE-FDD,
DC-HSDPA, HSPA+, HSDPA, HSUPA, WCDMA, EDGE and GPRS networks. It can also provide voice
functionality

1)

to meet customers’ specific application demands. EG91 series contain 8 variants: EG91-E,

EG91-NA, EG91-NS, EG91-VX, EG91-EX, EG91-NAX, EG91-NAXD and EG91-AUX. The following table
shows the frequency bands of EG91 series module.

Table 1: Frequency Bands of EG91 Series Module

Module

LTE Bands

(with Rx-diversity)

WCDMA

(with Rx-diversity)

GSM

GNSS

2)

EG91-E

FDD:
B1/B3/B7/B8/B20/B28A

B1/B8 900/1800MHz

Not

supported

EG91-NA

FDD:
B2/B4/B5/B12/B13

B2/B4/B5 Not

supported

GPS, GLONASS,
BeiDou/Compass,
Galileo, QZSS

EG91-NS

FDD:
B2/B4/B5/B12/B13/B25/
B26

B2/B4/B5 Not

supported

GPS, GLONASS,
BeiDou/Compass,
Galileo, QZSS

EG91-VX

FDD: B4/B13

Not supported

Not supported

GPS, GLONASS,
BeiDou/Compass,
Galileo, QZSS

EG91-EX

FDD:
B1/B3/B7/B8/B20/B28

B1/B8 900/1800MHz

GPS, GLONASS,
BeiDou/Compass,
Galileo, QZSS

EG91-NAX

FDD:
B2/B4/B5/B12/B13/B25/
B26

B2/B4/B5 Not

supported

GPS, GLONASS,
BeiDou/Compass,
Galileo, QZSS

EG91-NAXD

FDD:
B2/B4/B5/B12/B13/B25/
B26

B2/B4/B5

Not supported

GPS, GLONASS,
BeiDou/Compass,
Galileo, QZSS

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Содержание EG91 Series

Страница 1: ...EG91 Series Hardware Design LTE Standard Module Series Version 1 9 Date 2020 09 03 Status Preliminary www quectel com ...

Страница 2: ...RRED BY USE OF OR RELIANCE UPON THE INFORMATION ALL INFORMATION SUPPLIED HEREIN IS SUBJECT TO CHANGE WITHOUT PRIOR NOTICE DISCLAIMER WHILE QUECTEL HAS MADE EFFORTS TO ENSURE THAT THE FUNCTIONS AND FEATURES UNDER DEVELOPMENT ARE FREE FROM ERRORS IT IS POSSIBLE THAT THESE FUNCTIONS AND FEATURES COULD CONTAIN ERRORS INACCURACIES AND OMISSIONS UNLESS OTHERWISE PROVIDED BY VALID AGREEMENT QUECTEL MAKES...

Страница 3: ...ut power in Table 27 7 Updated the conducted RF receiving sensitivity in Table 28 8 Updated the GPRS multi slot classes in Table 33 9 Added thermal consideration in Chapter 5 8 10 Added a GND pad in each of the four corners of the module s footprint in Chapter 6 2 11 Updated storage information in Chapter 7 1 12 Added packaging information in Chapter 7 3 1 2 2018 03 14 Felix YIN Rex WANG 1 Added t...

Страница 4: ...ed module operating frequencies Table 23 9 Updated antenna requirements Table 26 10 Added current consumption of EG91 NS EG91 V and EG91 EC Table 32 33 and 34 11 Added conducted RF receiving sensitivity of EG91 NS EG91 V and EG91 EC Table 39 40 and 41 1 4 2019 03 29 Ward WANG 1 Modified module name EG91 EC to EG91 EX and EG91 V to EG91 VX 2 Added newly supported 9 x of Android USB serial driver Ta...

Страница 5: ...le 37 4 Updated EG91 NA conducted RF receiving sensitivity Table 41 5 Updated EG91 NS conducted RF receiving sensitivity Table 42 6 Added EG91 NAX conducted RF receiving sensitivity Table 45 1 8 2019 11 07 Rex WANG 1 Removed related information of ThreadX OS 2 Updated the supported USB serial drivers Table 2 3 Updated the notes for GNSS performance Chapter 4 2 4 Updated the AT command be used to d...

Страница 6: ... USB Application with USB Remote Wakeup Function 32 3 5 1 3 USB Application with USB Suspend Resume and RI Function 32 3 5 1 4 USB Application without USB Suspend Function 33 3 5 2 Airplane Mode 34 3 6 Power Supply 34 3 6 1 Power Supply Pins 34 3 6 2 Decrease Voltage Drop 35 3 6 3 Reference Design for Power Supply 36 3 6 4 Monitor the Power Supply 36 3 7 Power on off Scenarios 37 3 7 1 Turn on Mod...

Страница 7: ...4 5 3 2 Recommended RF Connector for Antenna Installation 65 6 Electrical Reliability and Radio Characteristics 67 6 1 Absolute Maximum Ratings 67 6 2 Power Supply Ratings 67 6 3 Operation and Storage Temperatures 68 6 4 Current Consumption 69 6 5 RF Output Power 81 6 6 RF Receiving Sensitivity 82 6 7 Electrostatic Discharge 87 6 8 Thermal Consideration 87 7 Mechanical Dimensions 90 7 1 Mechanical...

Страница 8: ...twork Status Indicator 52 Table 18 Pin Definition of STATUS 53 Table 19 Pin Definition of ADC Interface 54 Table 20 Characteristics of ADC Interface 54 Table 21 Default Behaviors of RI 55 Table 22 Pin Definition of USB_BOOT Interface 55 Table 23 GNSS Performance 57 Table 24 Pin Definition of RF Antenna 59 Table 25 Module Operating Frequencies 59 Table 26 Pin Definition of GNSS Antenna Interface 63...

Страница 9: ... 84 Table 47 EG91 NAX Conducted RF Receiving Sensitivity 85 Table 48 EG91 NAXD Conducted RF Receiving Sensitivity 85 Table 49 EG91 AUX Conducted RF Receiving Sensitivity 86 Table 50 Electrostatic Discharge Characteristics 25ºC 45 Relative Humidity 87 Table 51 Recommended Thermal Profile Parameters 98 Table 52 Related Documents 101 Table 53 Terms and Abbreviations 101 Table 54 Description of Differ...

Страница 10: ... Interface 45 Figure 20 Reference Circuit with Translator Chip 47 Figure 21 Reference Circuit with Transistor Circuit 48 Figure 22 Primary Mode Timing 49 Figure 23 Auxiliary Mode Timing 49 Figure 24 Reference Circuit of PCM Application with Audio Codec 50 Figure 25 Reference Circuit of SPI Interface with Peripherals 51 Figure 26 Reference Circuit of Network Status Indicator 52 Figure 27 Reference ...

Страница 11: ...le Bottom Dimensions Top View 91 Figure 43 Recommended Footprint Top View 93 Figure 44 Top View of the Module 94 Figure 45 Bottom View of the Module 95 Figure 46 Recommended Reflow Soldering Thermal Profile 97 Figure 47 Tape Dimensions 99 Figure 48 Reel Dimensions 99 Figure 49 Tape and Reel Directions 100 ...

Страница 12: ...t 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...

Страница 13: ... 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 permane...

Страница 14: ...al 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 t...

Страница 15: ...raft 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...

Страница 16: ...he frequency bands of EG91 series module Table 1 Frequency Bands of EG91 Series Module Module LTE Bands with Rx diversity WCDMA with Rx diversity GSM GNSS 2 EG91 E FDD B1 B3 B7 B8 B20 B28A B1 B8 900 1800MHz Not supported EG91 NA FDD B2 B4 B5 B12 B13 B2 B4 B5 Not supported GPS GLONASS BeiDou Compass Galileo QZSS EG91 NS FDD B2 B4 B5 B12 B13 B25 B26 B2 B4 B5 Not supported GPS GLONASS BeiDou Compass ...

Страница 17: ...GA pads EG91 series module is integrated with internet service protocols like TCP UDP and PPP Extended AT commands have been developed for customers to use these internet service protocols easily 2 2 Key Features The following table describes the detailed features of EG91 series module Table 2 Key Features of EG91 series Module Feature Details Power Supply Supply voltage 3 3V 4 3V Typical supply v...

Страница 18: ...g schemes MCS 1 9 Uplink coding schemes MCS 1 9 Max 296Kbps DL Max 236 8Kbps UL Internet Protocol Features Support TCP UDP PPP FTP FTPS HTTP HTTPS NTP PING QMI NITZ MMS SMTP SSL MQTT FILE CMUX SMTPS protocols Support PAP Password Authentication Protocol and CHAP Challenge Handshake Authentication Protocol protocols which are usually used for PPP connections SMS Text and PDU modes Point to point MO...

Страница 19: ...e connection without chip selection 1 8V operation voltage with clock rates up to 50MHz Rx diversity Support LTE WCDMA Rx diversity GNSS Features Gen8C Lite of Qualcomm Protocol NMEA 0183 Data update rate 1Hz by default AT Commands Compliant with 3GPP TS 27 007 27 005 and Quectel enhanced AT commands Network Indication NETLIGHT pin for network activity status indication Antenna Interfaces Includin...

Страница 20: ...ceed the specified tolerances When the temperature returns to normal operation 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 EG91 series module and illustrates the major functional parts Power management Baseband DDR NAND flash Radio frequency Peripheral interfaces Baseband PMIC Trans...

Страница 21: ... only supported on EG91 NA NS VX EX NAX NAXD AUX 2 4 Evaluation Board Quectel provides a complete set of evaluation tools to facilitate the use and testing of EG91 series module The evaluation tool kit includes the evaluation board UMTS LTE EVB USB data cable earphone antenna and other peripherals For more details please refer to document 7 NOTE ...

Страница 22: ... equipped with 62 pin 1 1mm pitch SMT pads and 44 pin ground reserved pads that can be connected to customers cellular application platforms Sub interfaces included in these pads are described in detail in the following chapters Power supply U SIM interfaces USB interface UART interfaces PCM and I2C interfaces SPI interface Status indication USB_BOOT interface ...

Страница 23: ...Standard Module Series EG91 Series Hardware Design EG91_Series_Hardware_Design 22 106 3 2 Pin Assignment The following figure shows the pin assignment of EG91 series module Figure 2 Pin Assignment Top View ...

Страница 24: ...UX and EG91 E For more details please refer to Table 4 3 3 Pin Description The following tables show the pin definition and description of EG91 series module Table 3 IO Parameters Definition Table 4 Pin Description 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 Power Supply Pin Name Pin No I O Descr...

Страница 25: ...rn on off the module VH 0 8V The output voltage is 0 8V because of the diode drop in the Qualcomm chipset RESET_N 17 DI Reset signal of the module VIHmax 2 1V VIHmin 1 3V VILmax 0 5V Require pull up resistor to 1 8V internally Active low If unused keep it open Status Indication Pin Name Pin No I O Description DC Characteristics Comment STATUS 20 DO Indicate the module s operation status VOHmin 1 3...

Страница 26: ... USIM_GND 47 Specified ground for U SIM card Connect to ground of U SIM card connector USIM1_VDD 43 PO Power supply for U SIM card IOmax 50mA For 1 8V U SIM Vmax 1 9V Vmin 1 7V For 3 0V U SIM Vmax 3 05V Vmin 2 7V Either 1 8V or 3 0V is supported by the module automatically USIM1_DATA 45 IO Data signal of U SIM card For 1 8V U SIM VILmax 0 6V VIHmin 1 2V VOLmax 0 45V VOHmin 1 35V For 3 0V U SIM VIL...

Страница 27: ...ly for U SIM card For 1 8V U SIM Vmax 1 9V Vmin 1 7V For 3 0V U SIM Vmax 3 05V Vmin 2 7V IOmax 50mA Either 1 8V or 3 0V is supported by the module automatically USIM2_DATA 86 IO Data signal of U SIM card For 1 8V U SIM VILmax 0 6V VIHmin 1 2V VOLmax 0 45V VOHmin 1 35V For 3 0V U SIM VILmax 1 0V VIHmin 1 95V VOLmax 0 45V VOHmin 2 55V USIM2_CLK 84 DO Clock signal of U SIM card For 1 8V U SIM VOLmax ...

Страница 28: ... open RTS 37 DI Request to send VILmin 0 3V VILmax 0 6V VIHmin 1 2V VIHmax 2 0V 1 8V power domain If unused keep it open DTR 30 DI Data terminal ready Sleep mode control VILmin 0 3V VILmax 0 6V VIHmin 1 2V VIHmax 2 0V 1 8V power domain Require pull up resistor by default Low level wakes up the module If unused keep it open TXD 35 DO Transmit data VOLmax 0 45V VOHmin 1 35V 1 8V power domain If unus...

Страница 29: ...0V 1 8V power domain In master mode it is an output signal In slave mode it is an input signal If unused keep it open PCM_CLK 4 IO PCM clock VOLmax 0 45V VOHmin 1 35V VILmin 0 3V VILmax 0 6V VIHmin 1 2V VIHmax 2 0V 1 8V power domain In master mode it is an output signal In slave mode it is an input signal If unused keep it open I2C Interface Pin Name Pin No I O Description DC Characteristics Comme...

Страница 30: ...d keep it open SPI_MISO 28 DI Master input slave output of SPI interface VILmin 0 3V VILmax 0 6V VIHmin 1 2V VIHmax 2 0V 1 8V power domain If unused keep it open RF Interfaces Pin Name Pin No I O Description DC Characteristics Comment ANT_GNSS 49 EG91 NA NS VX EX NAX N AXD AUX AI GNSS antenna pad 50Ω impedance If unused keep it open The pin is defined as ANT_DIV on EG91 E ANT_DIV 49 EG91 E AI Rece...

Страница 31: ...tting 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 processor sleep state detection VILmax 0 6V VIHmin 1 2V VIHmax 2 0V If unused keep it open USB_BOOT 75 DI Force the module to enter emergency download mode VILmin 0 3V VILmax 0 6V VI...

Страница 32: ...ge connected to VBAT_RF and VBAT_BB remains applied 3 5 Power Saving 3 5 1 Sleep Mode EG91 series module is able to reduce its current consumption to a minimum value during the sleep mode The following sub chapters describe the power saving procedures of EG91 series module 3 5 1 1 UART Application If the host communicates with the module via UART interface the following preconditions can let the m...

Страница 33: ...owing figure shows the connection between the module and the host Figure 4 Sleep Mode Application with USB Remote Wakeup Sending data to EG91 series module through USB will wake up the module When EG91 series module has a URC to report the module will send remote wakeup signals via USB bus so as to wake up the host 3 5 1 3 USB Application with USB Suspend Resume and RI Function If the host support...

Страница 34: ... Suspend Function If the host does not support USB suspend function USB_VBUS should be disconnected with an external control circuit to let the module enter sleep mode Execute AT QSCLK 1 command to enable sleep mode Ensure the DTR is held at high level or keep it open Disconnect USB_VBUS The following figure shows the connection between the module and the host Figure 6 Sleep Mode Application witho...

Страница 35: ...provides the choice of the functionality level through setting fun as 0 1 or 4 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 mode RF function is disabled 1 Airplane mode control via W_DISABLE is disabled in firmware by default It can be enabled by AT QCFG airplanecontrol command and this command is unde...

Страница 36: ... drop a bypass capacitor of about 100µF with low ESR ESR 0 7Ω should be used and a multi layer ceramic chip MLCC capacitor 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 VBAT_BB VBAT_RF pins The main power supply from an external application has to be a single ...

Страница 37: ...ent up to 2A at least If the voltage drop between the input and output is not too high it is suggested that an LDO should be used to supply power for the module If there is a big voltage difference between the input source and the desired output VBAT 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 outp...

Страница 38: ...wer down mode it can be turned on to normal mode by driving the PWRKEY pin to a low level for at least 500ms It is recommended to use an open drain collector driver to control the PWRKEY After STATUS pin outputting a high level PWRKEY pin can be released A simple reference circuit is illustrated in the following figure Figure 10 Turn on the Module Using Driving Circuit Another way to control the P...

Страница 39: ...er on scenario is illustrated in the following figure VIL 0 5V VH 0 8V VBAT PWRKEY 500ms RESET_N STATUS DO I nactive Active UART I nactive Active USB 12s 13s VDD_EXT BOOT_CONFIG USB_BOOT Pins About 100ms 10s NOTE 1 100ms After this time the BOOT_CONFIG pins can be set to high level by external circuit Figure 12 Timing of Turning on Module ...

Страница 40: ...thods can be used to turn off the module Use the PWRKEY pin Use AT QPOWD command 3 7 2 1 Turn off Module Using the PWRKEY Pin Driving the PWRKEY pin to a low level voltage for at least 650ms the module will execute power off procedure after the PWRKEY is released The power off scenario is illustrated in the following figure Figure 13 Timing of Turning off Module 3 7 2 2 Turn off Module Using AT Co...

Страница 41: ... of the command Otherwise the module will be turned on again after being shut down 3 8 Reset the Module The RESET_N pin can be used to reset the module The module can be reset by driving RESET_N to a low level voltage for 150ms 460ms Table 8 Pin Definition of RESET_N Pin Name Pin No Description DC Characteristics Comment RESET_N 17 Reset the module VIHmax 2 1V VIHmin 1 3V VILmax 0 5V The recommend...

Страница 42: ...ing off the module by AT QPOWD command and PWRKEY pin failed 2 Ensure that there is no large capacitance on PWRKEY and RESET_N pins 3 9 U SIM Interfaces EG91 series module provides two U SIM interfaces and only one U SIM card can work at a time The U SIM1 and U SIM2 cards can be switched by AT QDSIM command For more details please refer to document 2 The U SIM interfaces circuitry meet ETSI and IM...

Страница 43: ...d for U SIM card USIM2_VDD 87 PO Power supply for U SIM2 card Either 1 8V or 3 0V is supported by the module automatically USIM2_DATA 86 IO Data signal of U SIM2 card USIM2_CLK 84 DO Clock signal of U SIM2 card USIM2_RST 85 DO Reset signal of U SIM2 card USIM2_ PRESENCE 83 DI U SIM2 card insertion detection EG91 series module supports U SIM card hot plug via USIM_PRESENCE USIM1_PRESENCE USIM2 _PRE...

Страница 44: ...ce with a 6 pin U SIM card connector is illustrated in the following figure Figure 18 Reference Circuit of U SIM Interface with a 6 pin U SIM Card Connector In order to enhance the reliability and availability of the U SIM cards in customers applications please follow the criteria below in the U SIM circuit design Keep placement of U SIM card connector to the module as close as possible Keep the t...

Страница 45: ... capability when long layout trace and sensitive occasion are applied and should be placed close to the U SIM card connector 3 10 USB Interface EG91 series module contains one integrated Universal Serial Bus USB interface which complies with the USB 2 0 specification and supports high speed 480Mbps and full speed 12Mbps modes The USB interface acts as slave only and is used for AT command communic...

Страница 46: ... 0 specification It is important to route the USB signal traces as differential pairs with total grounding The impedance of USB differential trace is 90Ω Do not route signal traces under crystals oscillators magnetic devices and RF signal traces It is important to route the USB differential traces in inner layer with ground shielding on not only upper and lower layers but also right and left sides...

Страница 47: ...es show the pin definition of the two UART interfaces Table 11 Pin Definition of Main UART Interfaces Pin Name Pin No I O Description Comment RI 39 DO Ring indicator 1 8V power domain DCD 38 DO Data carrier detection CTS 36 DO Clear to send RTS 37 DI Request to send DTR 30 DI Sleep mode control TXD 35 DO Transmit data RXD 34 DI Receive data Table 12 Pin Definition of Debug UART Interface Pin Name ...

Страница 48: ... TXS0108EPWR provided by Texas Instruments is recommended The following figure shows a reference design Figure 20 Reference Circuit with Translator Chip Please visit http www ti com for more information Another example with transistor translation circuit is shown as below The circuit design of dotted line section can refer to the circuit design of solid line section in terms of both module input a...

Страница 49: ...the falling edge of the PCM_CLK and transmitted on the rising edge The PCM_SYNC falling edge represents the MSB In this mode the PCM interface supports 256KHz 512KHz 1024KHz or 2048KHz PCM_CLK at 8KHz PCM_SYNC and also supports 4096KHz PCM_CLK at 16KHz PCM_SYNC In auxiliary mode the data is also sampled on the falling edge of the PCM_CLK and transmitted on the rising edge The PCM_SYNC rising edge ...

Страница 50: ...Series Hardware Design EG91_Series_Hardware_Design 49 106 Figure 22 Primary Mode Timing Figure 23 Auxiliary Mode Timing The following table shows the pin definition of PCM and I2C interfaces which can be applied on audio codec design ...

Страница 51: ...l pull up to 1 8V I2C_SDA 41 OD I2C serial data Require an external pull up to 1 8V Clock and mode can be configured by AT command and the default configuration is master mode using short frame synchronization format with 2048KHz PCM_CLK and 8KHz PCM_SYNC Please refer to document 2 about AT QDAI command for details The following figure shows a reference design of PCM interface with external codec ...

Страница 52: ...interface Table 15 Pin Definition of SPI Interface Pin Name Pin No I O Description Comment SPI_CLK 26 DO Clock signal of SPI interface 1 8V power domain SPI_MOSI 27 DO Master output slave input of SPI interface 1 8V power domain SPI_MISO 28 DI Master input slave output of SPI interface 1 8V power domain The following figure shows a reference design of SPI interface with peripherals Figure 25 Refer...

Страница 53: ...in Definition of Network Status Indicator Pin Name Pin No I O Description Comment NETLIGHT 21 DO Indicate the module s network activity status 1 8V power domain Table 17 Working State of Network Status Indicator Pin Name Logic Level Changes Network Status NETLIGHT Flicker slowly 200ms High 1800ms Low Network searching Flicker slowly 1800ms High 200ms Low Idle Flicker quickly 125ms High 125ms Low D...

Страница 54: ... I O Description Comment STATUS 20 DO Indicate the module s operation status 1 8V power domain If unused keep it open The following figure shows the reference circuit of STATUS Figure 27 Reference Circuit of STATUS 3 16 ADC Interface The module provides one analog to digital converter ADC interface AT QADC 0 command can be used to read the voltage value on ADC0 pin For more details about the comma...

Страница 55: ...t is prohibited to supply any voltage to ADC pins when ADC pins are not powered by VBAT 2 It is recommended to use resistor divider circuit for ADC application 3 17 Behaviors of RI AT QCFG risignaltype physical command can be used to configure RI behavior The default RI behaviors can be changed by AT QCFG urc ri ring command Please refer to document 2 for details No matter on which port URC is pre...

Страница 56: ...er emergency download mode when it is powered on In this mode the module supports firmware upgrade over USB interface Table 22 Pin Definition of USB_BOOT Interface Pin Name Pin No I O Description Comment USB_BOOT 75 DI Force the module to enter emergency download mode 1 8V power domain Active high It is recommended to reserve test point The following figures show the reference circuit of USB_BOOT ...

Страница 57: ...Timing Sequence for Entering Emergency Download Mode 1 Please make sure that VBAT is stable before pulling down PWRKEY pin It is recommended that the time between powering up VBAT and pulling down PWRKEY pin is no less than 30ms 2 When using MCU to control module to enter the emergency download mode please follow the above timing sequence It is not recommended to pull up USB_BOOT to 1 8V before po...

Страница 58: ...a USB interface by default By default EG91 series module 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 4 2 GNSS Performance The following table shows GNSS performance of EG91 series module Table 23 GNSS Performance Parameter Description Conditions Typ Unit Sensitivity GNSS Cold start A...

Страница 59: ...m GNSS signal power at which the module can fix position successfully within 3 minutes after executing cold start command 4 3 Layout Guidelines The following layout guidelines should be taken into account in customers design Maximize the distance among GNSS antenna main antenna and Rx diversity antenna Digital circuits such as U SIM card USB interface camera module and display connector should be ...

Страница 60: ...antenna port is 50Ω 5 1 Main Rx diversity Antenna Interfaces 5 1 1 Pin Definition The pin definition of main antenna and Rx diversity antenna interfaces is shown below Table 24 Pin Definition of RF Antenna Pin Name Pin No I O Description Comment ANT_MAIN 60 IO Main antenna pad 50Ω impedance ANT_DIV EG91 E 49 AI Receive diversity antenna pad 50Ω impedance ANT_DIV EG91 NA NS VX EX NAX NAXD 56 AI Rec...

Страница 61: ...D B4 1710 1755 2110 2155 MHz LTE FDD B5 824 849 869 894 MHz LTE FDD B7 2500 2570 2620 2690 MHz LTE FDD B8 880 915 925 960 MHz LTE FDD B12 699 716 729 746 MHz LTE FDD B13 777 787 746 756 MHz LTE FDD B20 832 862 791 821 MHz LTE FDD B25 1850 1915 1930 1995 MHz LTE FDD B26 814 849 859 894 MHz LTE FDD B28 703 748 758 803 MHz LTE FDD B66 1710 1780 2100 2200 MHz 5 1 3 Reference Design of RF Antenna Inter...

Страница 62: ...close to the antenna as possible 5 1 4 Reference Design of RF Layout For user s PCB the characteristic impedance of all RF traces should be controlled to 50 Ω The impedance of the RF traces is usually determined by the trace width W the materials dielectric constant the height from the reference ground to the signal layer H and the spacing between RF traces and grounds S Microstrip or coplanar wav...

Страница 63: ...ign EG91_Series_Hardware_Design 62 106 Figure 32 Coplanar Waveguide Design on a 2 layer PCB Figure 33 Coplanar Waveguide Design on a 4 layer PCB Layer 3 as Reference Ground Figure 34 Coplanar Waveguide Design on a 4 layer PCB Layer 4 as Reference Ground ...

Страница 64: ...s should be complete Meanwhile adding some ground vias around RF traces and the reference ground could help to improve RF performance The distance between the ground vias and RF traces should be no less than two times the width of RF signal traces 2 x W Keep RF traces away from interference sources and avoid intersection and paralleling between traces on adjacent layers For more details about RF l...

Страница 65: ...ement 2 If the module is designed with a passive antenna then the VDD circuit is not needed 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 28 Antenna Requirements Type Requirements GNSS 1 Frequency range 1559MHz 1609MHz Polarization RHCP or linear VSWR 2 Typ Passive antenna gain 0dBi Active a...

Страница 66: ...CS1900 WCDMA B1 B2 B4 LTE FDD B1 B2 B3 B4 B25 B66 Cable insertion loss 2dB LTE FDD B7 1 It is recommended to use a passive GNSS antenna when LTE B13 or B14 is supported as the use of active antenna may generate harmonics which will affect the GNSS performance 5 3 2 Recommended RF Connector for Antenna Installation If RF connector is used for antenna connection it is recommended to use U FL R SMT c...

Страница 67: ...P serial connectors listed in the following figure can be used to match the U FL R SMT Figure 37 Mechanicals of U FL LP Connectors The following figure describes the space factor of mated connector Figure 38 Space Factor of Mated Connector Unit mm For more details please visit http www hirose com ...

Страница 68: ...odule are listed in the following table Table 29 Absolute Maximum Ratings Parameter Min Max Unit VBAT_RF VBAT_BB 0 3 4 7 V USB_VBUS 0 3 5 5 V Peak Current of VBAT_BB 0 0 8 A Peak Current of VBAT_RF 0 1 8 A Voltage at Digital Pins 0 3 2 3 V 6 2 Power Supply Ratings Table 30 Power Supply Ratings Parameter Description Conditions Min Typ Max Unit VBAT VBAT_BB and VBAT_RF The actual input voltages must...

Страница 69: ...Max Unit Operation Temperature Range 1 35 25 75 ºC Extended Temperature Range 2 40 85 ºC Storage Temperature Range 40 90 ºC 1 1 Within operation temperature range the module is 3GPP compliant 2 2 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 ...

Страница 70: ...SM DRX 9 USB disconnected 1 3 mA WCDMA PF 64 USB disconnected 1 7 mA WCDMA PF 64 USB suspended 2 1 mA WCDMA PF 512 USB disconnected 1 1 mA LTE FDD PF 64 USB disconnected 2 1 mA LTE FDD PF 64 USB suspended 2 6 mA LTE FDD PF 256 USB disconnected 1 4 mA Idle state GSM DRX 5 USB disconnected 19 0 mA GSM DRX 5 USB connected 29 0 mA WCDMA PF 64 USB disconnected 19 0 mA WCDMA PF 64 USB connected 29 0 mA ...

Страница 71: ...00 4DL 1UL PCL 2 25 54dBm 136 mA DCS1800 3DL 2UL PCL 2 25 68dBm 220 mA DCS1800 2DL 3UL PCL 2 25 61dBm 306 mA DCS1800 1DL 4UL PCL 2 25 41dBm 396 mA WCDMA data transfer WCDMA B1 HSDPA CH10700 22 29dBm 507 mA WCDMA B1 HSUPA CH10700 21 79dBm 516 mA WCDMA B8 HSDPA CH3012 22 47dBm 489 mA WCDMA B8 HSUPA CH3012 21 98dBm 482 mA LTE data transfer LTE FDD B1 CH18300 22 98dBm 685 mA LTE FDD B3 CH19575 23 23dB...

Страница 72: ...isconnected 1 4 mA LTE FDD PF 64 USB disconnected 2 6 mA LTE FDD PF 64 USB suspended 2 9 mA LTE FDD PF 256 USB disconnected 1 7 mA Idle state WCDMA PF 64 USB disconnected 14 0 mA WCDMA PF 64 USB connected 26 0 mA LTE FDD PF 64 USB disconnected 15 0 mA LTE FDD PF 64 USB connected 26 0 mA WCDMA data transfer WCDMA B2 HSDPA CH9938 22 45dBm 569 mA WCDMA B2 HSUPA CH9938 21 73dBm 559 mA WCDMA B4 HSDPA C...

Страница 73: ...ower down 8 μA Sleep state AT CFUN 0 USB disconnected 1 2 mA WCDMA PF 64 USB disconnected 2 mA WCDMA PF 64 USB suspended 2 3 mA WCDMA PF 512 USB disconnected 1 3 mA LTE FDD PF 64 USB disconnected 2 5 mA LTE FDD PF 64 USB suspended 2 8 mA LTE FDD PF 256 USB disconnected 1 6 mA Idle state WCDMA PF 64 USB disconnected 19 9 mA WCDMA PF 64 USB connected 30 1 mA LTE FDD PF 64 USB disconnected 21 2 mA LT...

Страница 74: ... LTE FDD B26 CH8765 23 34dBm 647 mA WCDMA voice call WCDMA B2 CH9938 23 39dBm 571 mA WCDMA B4 CH1738 23 27dBm 593 mA WCDMA B5 CH4357 23 35dBm 554 mA Table 35 EG91 VX Current Consumption Parameter Description Conditions Typ Unit IVBAT OFF state Power down 9 μA Sleep state AT CFUN 0 USB disconnected TBD mA LTE FDD PF 64 USB disconnected TBD mA LTE FDD PF 64 USB suspended TBD mA LTE FDD PF 256 USB di...

Страница 75: ...uspend 2 1 mA WCDMA PF 512 USB disconnected 1 3 mA LTE FDD PF 64 USB disconnected 2 3 mA LTE FDD PF 64 USB suspend 2 6 mA LTE FDD PF 256 USB disconnected 1 5 mA Idle state GSM DRX 5 USB disconnected 21 0 mA GSM DRX 5 USB connected 31 0 mA WCDMA PF 64 USB disconnected 21 0 mA WCDMA PF 64 USB connected 31 0 mA LTE FDD PF 64 USB disconnected 21 0 mA LTE FDD PF 64 USB connected 31 0 mA GPRS data trans...

Страница 76: ... DCS1800 3DL 2UL PCL 2 25 8dBm 244 mA DCS1800 2DL 3UL PCL 2 25 7dBm 349 mA DCS1800 1DL 4UL PCL 2 25 6dBm 455 mA WCDMA data transfer WCDMA B1 HSDPA 22 48dBm 485 mA WCDMA B1 HSUPA 21 9dBm 458 mA WCDMA B8 HSDPA 22 6dBm 556 mA WCDMA B8 HSUPA 22 02dBm 520 mA LTE data transfer LTE FDD B1 23 37dBm 605 mA LTE FDD B3 23 3dBm 667 mA LTE FDD B7 23 2dBm 783 mA LTE FDD B8 23 09dBm 637 mA LTE FDD B20 23 21dBm 6...

Страница 77: ... LTE FDD PF 64 USB suspend 2 7 mA LTE FDD PF 256 USB disconnected 1 8 mA Idle state WCDMA PF 64 USB disconnected 16 7 mA WCDMA PF 64 USB connected 32 2 mA LTE FDD PF 64 USB disconnected 14 0 mA LTE FDD PF 64 USB connected 32 6 mA WCDMA data transfer WCDMA B2 HSDPA 21 74dBm 528 mA WCDMA B2 HSUPA 21 47dBm 536 mA WCDMA B4 HSDPA 22 67dBm 542 mA WCDMA B4 HSUPA 22 30dBm 550 mA WCDMA B5 HSDPA 22 63dBm 52...

Страница 78: ... 0 USB disconnected 1 1 mA WCDMA PF 64 USB disconnected 2 1 mA WCDMA PF 64 USB suspend 2 2 mA WCDMA PF 512 USB disconnected 1 6 mA LTE FDD PF 64 USB disconnected 2 6 mA LTE FDD PF 64 USB suspend 2 7 mA LTE FDD PF 256 USB disconnected 1 8 mA Idle state WCDMA PF 64 USB disconnected 16 7 mA WCDMA PF 64 USB connected 32 2 mA LTE FDD PF 64 USB disconnected 14 0 mA LTE FDD PF 64 USB connected 32 6 mA WC...

Страница 79: ...ent Consumption Parameter Description Conditions Typ Unit IVBAT OFF state Power down 10 μA Sleep state AT CFUN 0 USB disconnected 1 2 mA GSM DRX 2 USB disconnected 2 3 mA GSM DRX 5 USB suspend 2 0 mA GSM DRX 9 USB disconnected 1 5 mA WCDMA PF 64 USB disconnected 1 8 mA WCDMA PF 64 USB suspend 2 1 mA WCDMA PF 512 USB disconnected 1 3 mA LTE FDD PF 64 USB disconnected 2 3 mA LTE FDD PF 64 USB suspen...

Страница 80: ... mA EGSM900 2DL 3UL 29 77 dBm 446 5 mA EGSM900 1DL 4UL 28 59 dBm 540 0 mA DCS1800 4DL 1UL 30 19 dBm 154 4 mA DCS1800 3DL 2UL 29 23 dBm 258 0 mA DCS1800 2DL 3UL 27 19 dBm 332 4 mA DCS1800 1DL 4UL 26 14 dBm 419 1 mA PCS1900 4DL 1UL 30 22 dBm 155 0 mA PCS1900 3DL 2UL 29 48 dBm 259 5 mA PCS1900 2DL 3UL 27 50 dBm 333 1 mA PCS1900 1DL 4UL 26 44 dBm 416 8 mA EDGE data transfer GSM850 4DL 1UL PCL 8 25 75 ...

Страница 81: ...248 2 mA PCS1900 2DL 3UL PCL 2 22 94 dBm 351 5 mA PCS1900 1DL 4UL PCL 2 21 67 dBm 448 8 mA WCDMA data transfer WCDMA B1 HSDPA 22 30 dBm 609 6 mA WCDMA B1 HSUPA 21 50 dBm 640 5 mA WCDMA B2 HSDPA 22 14 dBm 557 4 mA WCDMA B2 HSUPA 21 18 dBm 539 4 mA WCDMA B5 HSDPA 22 6 dBm 588 2 mA WCDMA B5 HSUPA 21 45 dBm 545 2 mA WCDMA B8 HSDPA 21 92 dBm 578 1 mA WCDMA B8 HSUPA 21 93 dBm 592 5 mA LTE data transfer ...

Страница 82: ...22 93dBm 656 2 mA WCDMA B2 22 95dBm 579 8 mA WCDMA B5 22 54dBm 589 8 mA WCDMA B8 22 47dBm 627 8 mA Table 40 GNSS Current Consumption of EG91 6 5 RF Output Power The following table shows the RF output power of EG91 series module Table 41 RF Output Power Frequency Max Min GSM850 33dBm 2dB 5dBm 5dB Parameter Description Conditions Typ Unit IVBAT GNSS Searching AT CFUN 0 Cold start Passive Antenna 54...

Страница 83: ... 39dBm In GPRS 4 slots TX mode the maximum output power is reduced by 3 0dB The design conforms to the GSM specification as described in Chapter 13 16 of 3GPP TS 51 010 1 6 6 RF Receiving Sensitivity The following tables show the conducted RF receiving sensitivity of EG91 series module Table 42 EG91 E Conducted RF Receiving Sensitivity Frequency Receiving Sensitivity Typ 3GPP SIMO Primary Diversit...

Страница 84: ...MO WCDMA B2 110dBm 110dBm 112 5dBm 104 7dBm WCDMA B4 110dBm 110dBm 112 5dBm 106 7dBm WCDMA B5 111dBm 111dBm 113dBm 104 7dBm LTE FDD B2 10MHz 98dBm 99dBm 102 2dBm 94 3dBm LTE FDD B4 10MHz 97 8dBm 99 5dBm 102 2dBm 96 3dBm LTE FDD B5 10MHz 99 6dBm 100 3dBm 103dBm 94 3dBm LTE FDD B12 10MHz 99 5dBm 100dBm 102 5dBm 93 3dBm LTE FDD B13 10MHz 99 2dBm 100dBm 102 5dBm 93 3dBm Table 44 EG91 NS Conducted RF R...

Страница 85: ... Sensitivity Typ 3GPP SIMO Primary Diversity SIMO LTE FDD B4 10MHz 98 2dBm 99 2dBm 102 2dBm 96 3dBm LTE FDD B13 10MHz 99 2dBm 100dBm 102 5dBm 93 3dBm Table 46 EG91 EX Conducted RF Receiving Sensitivity Frequency Receiving Sensitivity Typ 3GPP SIMO Primary Diversity SIMO EGSM900 109 8dBm NA NA 102dBm DCS1800 109 8 dBm NA NA 102dbm WCDMA B1 110dBm 111dBm 112 5dBm 106 7dBm WCDMA B8 110dBm 111dBm 112 ...

Страница 86: ...dBm 102 2dBm 96 3dBm LTE FDD B5 10MHz 99 4dBm 100dBm 102 7dBm 94 3dBm LTE FDD B12 10MHz 99 5dBm 100dBm 102 5dBm 93 3dBm LTE FDD B13 10MHz 99 2dBm 100dBm 102 5dBm 93 3dBm LTE FDD B25 10MHz 97 6dBm 99dBm 102 2dBm 92 8dBm LTE FDD B26 10MHz 99 1dBm 99 9dBm 102 7dBm 93 8dBm Table 48 EG91 NAXD Conducted RF Receiving Sensitivity Frequency Receiving Sensitivity Typ 3GPP SIMO Primary Diversity SIMO WCDMA B...

Страница 87: ... NA NA 102 dBm EGSM900 109 7 dBm NA NA 102 dBm DCS1800 110 0 dBm NA NA 102 dBm PCS1900 109 4 dBm NA NA 102 dBm WCDMA B1 109 2 dBm NA NA 106 7 dBm WCDMA B2 109 8 dBm NA NA 104 7 dBm WCDMA B5 110 dBm NA NA 104 7 dBm WCDMA B8 110 dBm NA NA 103 7 dBm LTE FDD B1 10MHz 97 2dBm NA NA 96 3dBm LTE FDD B2 10MHz 97 7dBm NA NA 94 3dBm LTE FDD B3 10MHz 98 2dBm NA NA 93 3dBm LTE FDD B4 10MHz 97 7dBm NA NA 96 3d...

Страница 88: ...dule away from heating sources especially high power components such as ARM processor audio power amplifier power supply etc Do not place components on the opposite side of the PCB area where the module is mounted in order to facilitate adding of heatsink when necessary Do not apply solder mask on the opposite side of the PCB area where the module is mounted so as to ensure better heat dissipation...

Страница 89: ...s below 105 C When the maximum temperature of the BB chip reaches or exceeds 105 C the module works normal but provides reduced performance such as RF output power data rate etc When the maximum BB chip temperature reaches or exceeds 115 C the module will disconnect from the network and it will recover to network connected state after the maximum temperature falls below 115 C Therefore the thermal...

Страница 90: ...TE Standard Module Series EG91 Series Hardware Design EG91_Series_Hardware_Design 89 106 105 C Customers can execute AT QTEMP command and get the maximum BB chip temperature from the first returned value ...

Страница 91: ...l Dimensions This chapter describes the mechanical dimensions of the module All dimensions are measured in millimeter mm and the dimensional tolerances are 0 05 mm unless otherwise specified 7 1 Mechanical Dimensions of the Module 25 0 15 29 0 15 2 30 0 2 Pin 1 Figure 41 Module Top and Side Dimensions ...

Страница 92: ... 70 0 55 0 85 1 00 1 70 1 70 62x0 7 40x1 0 40x1 0 25 0 15 2 75 2 75 3 90 1 15 1 15 7 45 7 15 0 85 8 50 5 10 0 20 1 10 1 90 1 10 1 95 1 00 1 10 1 10 62x1 15 1 7 0 1 7 0 0 4 0 1 7 0 1 70 0 4 0 0 5 0 4 8 5 1 5 8 0 3 3 2 9 3 1 4 4 5 9 5 4 2 5 0 5 0 29 0 15 Figure 42 EG91 E Module Bottom Dimensions Top View ...

Страница 93: ...0x1 0 25 0 15 2 75 2 75 3 90 1 15 1 15 7 45 7 15 0 85 8 50 5 10 0 20 1 10 1 90 1 10 1 95 1 00 1 10 1 10 62x1 15 1 7 0 1 7 0 0 4 0 1 7 0 1 70 0 4 0 0 5 0 4 8 5 1 5 8 0 3 3 2 9 3 1 6 3 5 9 5 4 2 5 0 5 0 29 0 15 Figure 43 EG91 EX Module Bottom Dimensions Top View 1 The package warpage level of the module conforms to the JEITA ED 7306 standard NOTE ...

Страница 94: ...bottom dimensions is as the same as EG95 EX 7 2 Recommended Footprint 1 00 1 70 0 70 0 55 0 85 1 00 1 70 1 70 62x0 7 40x1 0 40x1 0 2 75 3 90 1 15 1 15 7 45 7 15 0 85 8 50 5 10 0 20 1 10 1 90 1 10 1 95 1 00 1 10 1 10 62x1 15 1 7 0 1 7 0 0 4 0 1 7 0 1 70 0 4 0 0 5 0 4 8 5 5 9 5 4 2 5 0 5 0 29 0 15 0 5 0 0 5 0 P I N 1 Figure 44 Recommended Footprint Top View ...

Страница 95: ...rdware Design EG91_Series_Hardware_Design 94 106 For easy maintenance of this module please keep about 3 mm between the module and other components on the motherboard 7 3 Top and Bottom Views of the Module Figure 45 Top View of the Module NOTE ...

Страница 96: ...46 EG91 E Bottom View of the Module Figure 47 EG91 EX Bottom View of the Module These are renderings of the module For authentic appearance please refer to the module received from Quectel 2 EG91 NA EG91 NS EG91 VX EG91 NAX EG91 NAXD and EG91 AUX modules bottom view is as the same as EG95 EX NOTES ...

Страница 97: ...ved the module must be processed in reflow soldering or other high temperature operations within 168 hours Otherwise the module should be stored in an environment where the relative humidity is less than 10 e g a drying cabinet 4 The module should be pre baked to avoid blistering cracks and inner layer separation in PCB under the following circumstances The module is not stored in Recommended Stor...

Страница 98: ...dering Push the squeegee to apply the solder paste on the surface of stencil thus making the paste fill the stencil openings and then penetrate to the PCB The force on the squeegee should be adjusted properly so as to produce a clean stencil surface on a single pass To ensure the module soldering quality the thickness of stencil for the module is recommended to be 0 13 0 15 mm For more details ple...

Страница 99: ...ned until the devices are ready to be soldered onto the application The reel is 330mm in diameter and each reel contains 250 modules The following figures show the packaging details measured in mm Factor Recommendation Soak Zone Max slope 1 3 C s Soak time between A and B 150 C and 200 C 70 120 s Reflow Zone Max slope 2 3 C s Reflow time D over 220 C 45 70 s Max temperature 238 C to 246 C Cooling ...

Страница 100: ...ndard Module Series EG91 Series Hardware Design EG91_Series_Hardware_Design 99 106 Figure 49 Tape Dimensions D i r e c t i o n o f f e e d C o v e r t a p e 13 100 44 5 0 20 0 00 48 5 Figure 50 Reel Dimensions ...

Страница 101: ...LTE Standard Module Series EG91 Series Hardware Design EG91_Series_Hardware_Design 100 106 Carrier tape packing module Carrier tape unfolding 1083 Figure 51 Tape and Reel Directions ...

Страница 102: ...T Commands Manual for EC25 and EC21 modules 4 Quectel_Module_Secondary_SMT_User_Guide Module Secondary SMT User Guide 5 Quectel_RF_Layout_Application_Note RF Layout Application Note 6 Quectel_LTE_Module_Thermal_Design_Guide Thermal design guide for LTE standard LTE A and Automotive modules 7 Quectel_UMTS LTE_EVB_User_Guide UMTS LTE EVB user guide for UMTS LTE modules Table 53 Terms and Abbreviatio...

Страница 103: ...Rate GMSK Gaussian Minimum Shift Keying GSM Global System for Mobile Communications HR Half Rate HSPA High Speed Packet Access HSDPA High Speed Downlink Packet Access HSUPA High Speed Uplink Packet Access I O Input Output Inorm Normal Current LED Light Emitting Diode LNA Low Noise Amplifier LTE Long Term Evolution MIMO Multiple Input Multiple Output MO Mobile Originated MS Mobile Station GSM engin...

Страница 104: ...exing TX Transmitting Direction UL Uplink UMTS Universal Mobile Telecommunications System URC Unsolicited Result Code U SIM Universal Subscriber Identity Module Vmax Maximum Voltage Value Vnorm Normal Voltage Value Vmin Minimum Voltage Value VIHmax Maximum Input High Level Voltage Value VIHmin Minimum Input High Level Voltage Value VILmax Maximum Input Low Level Voltage Value VILmin Minimum Input ...

Страница 105: ...91 Series Hardware Design EG91_Series_Hardware_Design 104 106 VOLmax Maximum Output Low Level Voltage Value VOLmin Minimum Output Low Level Voltage Value VSWR Voltage Standing Wave Ratio WCDMA Wideband Code Division Multiple Access ...

Страница 106: ...S Coding Schemes Table 54 Description of Different Coding Schemes Scheme CS 1 CS 2 CS 3 CS 4 Code Rate 1 2 2 3 3 4 1 USF 3 3 3 3 Pre coded USF 3 6 6 12 Radio Block excl USF and BCS 181 268 312 428 BCS 40 16 16 16 Tail 4 4 4 Coded Bits 456 588 676 456 Punctured Bits 0 132 220 Data Rate Kb s 9 05 13 4 15 6 21 4 ...

Страница 107: ...3 1 or 2 2 the first number indicates the amount of downlink timeslots while the second number indicates the amount of uplink timeslots The active slots determine the total number of slots the GPRS device can use simultaneously for both uplink and downlink communications The description of different multi slot classes is shown in the following table Table 55 GPRS Multi slot Classes Multislot Class...

Страница 108: ...s Hardware Design EG91_Series_Hardware_Design 107 106 15 5 5 NA 16 6 6 NA 17 7 7 NA 18 8 8 NA 19 6 2 NA 20 6 3 NA 21 6 4 NA 22 6 4 NA 23 6 6 NA 24 8 2 NA 25 8 3 NA 26 8 4 NA 27 8 4 NA 28 8 6 NA 29 8 8 NA 30 5 1 6 31 5 2 6 32 5 3 6 33 5 4 6 ...

Страница 109: ...ng Family 1 Timeslot 2 Timeslot 4 Timeslot MCS 1 GMSK C 8 80kbps 17 60kbps 35 20kbps MCS 2 GMSK B 11 2kbps 22 4kbps 44 8kbps MCS 3 GMSK A 14 8kbps 29 6kbps 59 2kbps MCS 4 GMSK C 17 6kbps 35 2kbps 70 4kbps MCS 5 8 PSK B 22 4kbps 44 8kbps 89 6kbps MCS 6 8 PSK A 29 6kbps 59 2kbps 118 4kbps MCS 7 8 PSK B 44 8kbps 89 6kbps 179 2kbps MCS 8 8 PSK A 54 4kbps 108 8kbps 217 6kbps MCS 9 8 PSK A 59 2kbps 118 ...

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