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LARA-R2 series

Size-optimized LTE Cat 1 modules in single and multi-

mode configurations

Data Sheet

Abstract

Technical data sheet describing the LARA-R2 series multi-mode cellular modules. The modules are

a cost efficient and performance optimized LTE Cat 1 / 3G / 2G multi-mode solution covering up to

four LTE bands, up to two UMTS/HSPA bands and up to two GSM/EGPRS bands in the very small

and compact LARA form factor.

www.u-blox.com

UBX-16005783 - R15

Summary of content (48 pages)

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LARA-R2 series Size-optimized LTE Cat 1 modules in single and multimode configurations Data Sheet Abstract Technical data sheet describing the LARA-R2 series multi-mode cellular modules. The modules are a cost efficient and performance optimized LTE Cat 1 / 3G / 2G multi-mode solution covering up to four LTE bands, up to two UMTS/HSPA bands and up to two GSM/EGPRS bands in the very small and compact LARA form factor. www.u-blox.
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LARA-R2 series - Data Sheet Document Information Title LARA-R2 series Subtitle Size-optimized LTE Cat 1 modules in single and multi-mode configurations Document type Data Sheet Document number UBX-16005783 Revision and date R15 27-May-2018 Disclosure Restriction Product status Corresponding content status Functional Sample Draft For functional testing. Revised and supplementary data will be published later. In Development / Prototype Objective Specification Target values.
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LARA-R2 series - Data Sheet Contents Document Information ................................................................................................................................ 2 Contents .......................................................................................................................................................... 3 1 2 Functional description ......................................................................................................................... 5 1.
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LARA-R2 series - Data Sheet 4.2.1 Operating temperature range ........................................................................................................ 25 4.2.2 Supply/power pins ............................................................................................................................ 25 4.2.3 Current consumption ....................................................................................................................... 26 4.2.4 LTE RF characteristics .....
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LARA-R2 series - Data Sheet 1 Functional description 1.1 Overview The LARA-R2 series comprises LTE Cat 1 / 3G / 2G multi-mode modules in the very small LARA LGA form-factor (26.0 x 24.0 mm, 100-pin) that are easy to integrate in compact designs. LARA-R2 series modules support up to four LTE bands, up to two 3G UMTS/HSPA bands and up to two 2G GSM/(E)GPRS bands for voice and/or data transmission.
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LARA-R2 series - Data Sheet 1.3 Block diagram Duplexer ANT1 Switch Filters Duplexer Filter s LNA s Filters PAs Filter s Filter s Filters LNA s Filter s Filter s LNA s Filters Switch ANT_DET SDIO RF transceiver UART Memory Cellular Base-band processor 32.
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LARA-R2 series - Data Sheet 1.4 Product description LARA-R2 series modules provide LTE Cat 1 technology, some variants with 2G or 3G multi-mode fallback.
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LARA-R2 series - Data Sheet 4G LTE 3G UMTS/HSDPA/HSUPA 2G GSM/GPRS/EDGE Data rate  LTE category 1: up to 10.3 Mbit/s DL, up to 5.2 Mbit/s UL Data rate  HSDPA category 8: up to 7.2 Mbit/s DL  HSUPA category 6: up to 5.76 Mbit/s UL Data rate5  GPRS multi-slot class 336, CS1-CS4, up to 107 kbit/s DL, up to 85.6 kbit/s UL  EDGE multi-slot class 336, MCS1-MCS9, up to 296 kbit/s DL, up to 236.
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LARA-R2 series - Data Sheet 1.6 Supported features Table 3 lists some of the main features supported by LARA-R2 modules. For more details, see LARA-R2 series System Integration Manual [2] and u-blox AT Commands Manual [1]. Feature Description Network Indication GPIO configured to indicate the network status: registered home network, registered roaming, voice or data call enabled, no service. The feature can be enabled through the +UGPIOC AT command.
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LARA-R2 series - Data Sheet Feature Description module and the u-blox M8 positioning chip or module. For more details, see the GNSS Implementation Application Note [4]. Embedded AssistNow Software12 Embedded AssistNow Online and AssistNow Offline clients are available to provide better GNSS performance and faster Time-to-First-Fix. An AT command can enable / disable the clients.
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LARA-R2 series - Data Sheet 2 Interfaces 2.1 Power management 2.1.1 Module supply input (VCC) LARA-R2 series modules must be supplied through the three VCC pins by a DC power supply. Voltage must be stable, because during operation the current drawn from VCC can vary by some order of magnitude, especially due to the surging consumption profile of the GSM system (described in the LARA-R2 series System Integration Manual [2]).
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LARA-R2 series - Data Sheet 2.3 System functions 2.3.1 Module power-on LARA-R2 series modules can be switched on in one of the following ways:  Rising edge on the VCC input to a valid voltage for module supply, i.e. applying module supply: the modules switch on if the VCC supply is applied, starting from a voltage value of less than 2.1 V, with a rise time from 2.3 V to 2.8 V of less than 4 ms, reaching a proper nominal voltage value within VCC operating range.
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LARA-R2 series - Data Sheet 2.3.3 Module reset LARA-R2 series modules can be reset (rebooted) by:  AT+CFUN command (see the u-blox AT Commands Manual [1]). This causes an “internal” or “software” reset of the module. The current parameter settings are saved in the module’s nonvolatile memory and a proper network detach is performed.
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LARA-R2 series - Data Sheet 2.5 Serial communication LARA-R2 series modules provide the following serial communication interfaces:      UART interface: Universal Asynchronous Receiver/Transmitter serial interface available for the communication with a host application processor (AT commands, data communication, FW update by means of FOAT), for FW update by means of the u-blox EasyFlash tool and for diagnostic. USB interface: Universal Serial Bus 2.
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LARA-R2 series - Data Sheet UART serial interface can be conveniently configured through AT commands: see the u-blox AT Commands Manual [1] (+IPR, +ICF, +IFC, &K, \Q, +UPSV AT commands) and LARA-R2 series System Integration Manual [2]. 2.5.1.1 Multiplexer protocol LARA-R2 series modules include multiplexer functionality as per 3GPP TS 27.010 [9] on the UART physical link.
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LARA-R2 series - Data Sheet The USB interface provides the following set of USB functions:  6 CDC-ACM modem COM ports enumerated as follows: o USB1: AT and data o USB2: AT and data o USB3: AT and data o USB4: GNSS tunneling o USB5: SAP (SIM Access Profile) o USB6: diagnostic log The user can concurrently use the AT command interface on one CDC, and Packet-Switched / CircuitSwitched Data communication on another CDC.
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LARA-R2 series - Data Sheet 2.5.4 DDC (I2C) interface ☞ Communication with u-blox GNSS receivers over DDC (I2C) is not supported by LARA-R204-02B and LARA-R211-02B product versions. LARA-R2 series modules include an I2C-bus compatible DDC interface (SDA, SCL) available to communicate with a u-blox GNSS receiver and with external I2C devices as an audio codec: the LARAR2 module acts as an I2C master which can communicate with I2C slaves in accordance with the I2C bus specifications [17].
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LARA-R2 series - Data Sheet 2.8 GPIO LARA-R2 series modules include 9 pins (GPIO1-GPIO5, I2S_TXD, I2S_RXD, I2S_CLK, I2S_WA) that can be configured as general purpose input/output or to provide custom functions as summarized in Table 4 (for further details, see the LARA-R2 series System Integration Manual [2] and the GPIO section in the u-blox AT Commands Manual [1]).
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GND GND ANT1 GND ANT_DET GND GND Pin assignment ANT2 3.
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LARA-R2 series - Data Sheet No Name Power I/O domain 1 GND - N/A Ground All the GND pins must be connected to ground 2 V_BCKP - I/O V_BCKP = 1.8 V (typical) generated by the module to supply the RTC when VCC voltage is within valid operating range. See section 4.2.2 for detailed electrical specs. 3 GND - N/A Ground 4 V_INT - O 5 GND - N/A Ground All the GND pins must be connected to ground 6 DSR GDI O UART data set ready Circuit 107 (DSR) in ITU-T V.24. Output driver class A.
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LARA-R2 series - Data Sheet No Name Power I/O domain Description Remarks 19 GPIO6 GDI O Clock output Configurable clock output (see section 2.7). Output driver class A. PU/PD class a. Value at internal reset: T/PD. See section 4.2.14 for detailed electrical specs. 20 GND - N/A Ground 21 HOST_SELECT GDI I/O 22 GND - N/A Ground All the GND pins must be connected to ground 23 GPIO2 GDI I/O GPIO GPIO configurable as described in section 2.8. Output driver class A. PU/PD class a.
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LARA-R2 series - Data Sheet No Name Power I/O domain 34 I2S_WA GDI I/O / I2S word alignment / I/O GPIO Configurable as I2S word alignment, or as GPIO (see 2.8). I2S not supported by LARA-R204-02B and LARA-R220-62B. Output driver class A. PU/PD class a. Value at internal reset: T/PD. See section 4.2.14 for detailed electrical specs. 35 I2S_TXD GDI O/ I/O Configurable as I2S transmit data out, or as GPIO (see 2.8). I2S not supported by LARA-R204-02B and LARA-R220-62B. Output driver class A.
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LARA-R2 series - Data Sheet No Name Power I/O domain Description Remarks 50 GND - N/A Ground All the GND pins must be connected to ground 51 VCC - I Module supply input Supply for BB part on LARA-R211 modules. Supply for BB part and RF PA on other LARA-R2 modules. All VCC pins must be connected to external supply. See sections 4.2.2 and 4.2.3 for detailed specs. 52 VCC - I Module supply input Supply for RF PA on LARA-R211 modules. Supply for BB part and RF PA on other LARA-R2 modules.
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LARA-R2 series - Data Sheet 4 Electrical specifications ⚠ Stressing the device above one or more of the ratings listed in the Absolute Maximum Rating section may cause permanent damage. These are stress ratings only. Operating the module at these or at any conditions other than those specified in the Operating Conditions sections (section 4.2) of the specification should be avoided. Exposure to Absolute Maximum Rating conditions for extended periods may affect device reliability.
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LARA-R2 series - Data Sheet 4.2 Operating conditions ☞ Unless otherwise indicated, all operating condition specifications are at an ambient temperature of +25 °C. ⚠ Operation beyond the operating conditions is not recommended and extended exposure beyond them may affect device reliability. 4.2.1 Operating temperature range Parameter Min. Typical Max.
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LARA-R2 series - Data Sheet 4.2.3 Current consumption Mode Condition Idle-Mode (Power Saving enabled by AT+UPSV, module in low power idle-mode, equivalent to airplane mode) Averaged current value over a 100-ms period, USB not connected 0.9 mA Averaged current value over a 100-ms period, USB connected and suspended 1.1 mA Cyclic Idle/Active-Mode (Power Saving enabled by AT+UPSV, Module registered with network) Averaged current value over a 10-minute period, USB not connected 1.
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LARA-R2 series - Data Sheet 4.2.4 LTE RF characteristics The LTE bands supported by each LARA-R2 series module are defined in Table 2, while the following Table 13 describes the Transmitting and Receiving frequencies for each LTE band according to 3GPP TS 36.521-1 [11]. Parameter Min. Max.
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LARA-R2 series - Data Sheet Parameter Receiver input sensitivity Band 20 (800 MHz) Receiver input sensitivity Band 19 (850 MHz) Receiver input sensitivity Band 5 (850 MHz) Receiver input sensitivity Band 8 (900 MHz) Receiver input sensitivity Band 4 (1700 MHz) Receiver input sensitivity Band 3 (1800 MHz) Receiver input sensitivity Band 2 (1900 MHz) Receiver input sensitivity Band 1 (2100 MHz) Receiver input sensitivity Band 7 (2600 MHz) Min. Typical Max. Unit Remarks –102.
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LARA-R2 series - Data Sheet 4.2.5 3G RF characteristics The 3G bands supported by each LARA-R2 series module are defined in Table 2, while the following Table 15 describes the Transmitting and Receiving frequencies for each 3G band according to 3GPP TS 34.121-1 [12]. Parameter Min. Max.
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LARA-R2 series - Data Sheet 4.2.6 2G RF characteristics The 2G bands supported by each LARA-R2 series module are defined in Table 2, while the following Table 17 describes the Transmitting and Receiving frequencies for each 2G band according to 3GPP TS 51.010-1 [13]. Parameter Min. Max.
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LARA-R2 series - Data Sheet 4.2.8 PWR_ON pin Pin Name Parameter PWR_ON Internal supply for Power-On Input Signal Min. Typical Max. 1.80 Low-level input –0.30 High-level input 1.26 Unit Remarks V RTC supply (V_BCKP) 0.54 V 2.
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LARA-R2 series - Data Sheet 4.2.11 USB pins USB data lines (USB_D+ / USB_D–) are compliant with the USB 2.0 high-speed specification. See the Universal Serial Bus Specification Revision 2.0 [15] for detailed electrical characteristics. The values in Table 23 related to USB 2.0 high-speed physical layer specifications are for information only. Parameter Min. Typical Max. Unit VUSB_DET pin, High-level input 1.50 5.00 5.25 V VUSB_DET pin, Low-level input –0.15 0.00 0.
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LARA-R2 series - Data Sheet 4.2.13 DDC (I2C) pins DDC (I2C) lines (SCL and SDA) are compliant with the I2C-bus standard mode specification. See the I2C-Bus Specification [17] for detailed electrical characteristics. The values in Table 25 related to I2C-bus standard mode specifications are for information only. Parameter Min Internal supply for GDI domain Typical Max 1.80 Unit Remarks V Digital I/O Interfaces supply (V_INT) Low-level input –0.20 0.36 V High-level input 1.26 2.00 V 0.
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LARA-R2 series - Data Sheet 4.2.14.2 AC characteristics of I2S pins Parameter Description 1/T1 I2S_WA frequency Min Typical Unit Remarks 8.000 Max kHz =0 11.025 kHz =1 12.000 kHz =2 16.000 kHz =3 22.050 kHz =4 24.000 kHz =5 32.000 kHz =6 44.100 kHz =7 48.000 kHz =8 1/T2 I2S_CLK frequency 1/T1 = 2,..
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LARA-R2 series - Data Sheet Parameter Description 1/T1 I2S_WA frequency Min Typical Max Unit Remarks 8.000 kHz =0 11.025 kHz =1 12.000 kHz =2 16.000 kHz =3 22.050 kHz =4 24.000 kHz =5 32.000 kHz =6 44.100 kHz =7 48.
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LARA-R2 series - Data Sheet 5 Mechanical specifications Pin 1 Indicator K Q M1 M1 M2 K P E F1 L R R J2 H2 G ANT2 pin J2 B J1 J2 H1 H2 N H1 H2 H1 ANT1 pin J2 J1 H1 H2 J1 G O O I E D G H1 J1 D L F2 A C Figure 3: LARA-R2 series dimensions (bottom and side views) Parameter Description Typical A Module Height [mm] 26.0 (1023.6 mil) Tolerance +0.20/–0.20 (+7.9/–7.9 mil) B Module Width [mm] 24.0 (944.9 mil) +0.20/–0.20 (+7.9/–7.
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LARA-R2 series - Data Sheet ☞ Module Height tolerance +/–0.20 mm may be exceeded close to the corners of the PCB due to the cutting process. In the worst case, the height could be +0.40 mm more than the typical value. ☞ For information regarding Footprint and Paste Mask recommended for the application board integrating the cellular module, see the LARA-R2 series System Integration Manual [2].
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LARA-R2 series - Data Sheet 6 Qualification and approvals 6.1 Reliability tests Tests for product family qualifications according to ISO 16750 “Road vehicles – Environmental conditions and testing for electrical and electronic equipment“, and appropriate standards. 6.
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LARA-R2 series - Data Sheet 7 Product handling & soldering 7.1 Packaging LARA-R2 series modules are delivered as hermetically sealed reeled tapes, to enable efficient production, production lot set-up and tear-down. For more information about packaging, see the u-blox Package Information User Guide [6]. 7.1.1 Reels LARA-R2 series modules are deliverable in quantities of 150 pieces on a reel.
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LARA-R2 series - Data Sheet 7.1.2 Tapes Figure 5 shows the position and the orientation of LARA-R2 modules as they are delivered on the tape, while Figure 6 and Table 35 specify the tape dimensions. Pin 1 Sprocket hole Feed direction Figure 5: Orientation for LARA-R2 series modules on tape Figure 6: LARA-R2 series modules tape dimensions Parameter Typical Value Tolerance Unit A0 24.9 0.2 mm B0 26.8 0.2 mm K0 3.5 0.
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LARA-R2 series - Data Sheet 7.2 Moisture Sensitivity Levels ⚠ LARA-R2 series modules are Moisture Sensitive Devices (MSD) in accordance to the IPC/JEDEC specification. The Moisture Sensitivity Level (MSL) relates to the packaging and handling precautions required. LARA-R2 series modules are rated at MSL level 4. For more information regarding moisture sensitivity levels, labeling, storage and drying see the u-blox Package Information Guide [6].
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LARA-R2 series - Data Sheet 8 Default settings Interface AT settings Comments UART interface AT interface enabled AT command mode is enabled by default on the UART physical interface AT+IPR=0 One-shot automatic baud rate detection enabled AT+ICF=3,1 Frame format: 8 bits, no parity, 1 stop bit ☞ Since AT+IPR=0 is the default value (one-shot automatic baud rate detection enabled), the AT+ICF value in the profile is not applied (AT+IPR=0 overrules the AT+ICF setting) and the one-shot automatic fr
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LARA-R2 series - Data Sheet 9 Labeling and ordering information 9.1 Product labeling The labels of LARA-R2 series modules include important product information as described in this section. Figure 7, Figure 8 and Figure 9 illustrate the labels of LARA-R2 series modules, which include: u-blox logo, production lot, Pb-free marking, product type number, IMEI number, applicable regulatory certifications’ info, and production country.
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LARA-R2 series - Data Sheet 9.2 Explanation of codes Three different product code formats are used. The Product Name is used in documentation such as this data sheet and identifies all the u-blox products, independent of packaging and quality grade. The Ordering Code includes options and quality, while the Type Number includes the hardware and firmware versions.
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LARA-R2 series - Data Sheet Appendix A Glossary Abbreviation Definition 8-PSK 8 Phase-Shift Keying modulation ADC Analog to Digital Converter CSFB Circuit Switched Fall-Back DDC Display Data Channel (I2C compatible) Interface DL Down-link (Reception) DNS Domain Name System ERS External Reset Input Signal ESD Electrostatic Discharge FOAT Firmware update Over AT commands FOTA Firmware update Over The Air FW Firmware GDI Generic Digital Interfaces (power domain) GMSK Gaussian Minimu
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LARA-R2 series - Data Sheet Related documents [1] [2] [3] [4] [5] [6] [7] [8] [9] [10] [11] [12] [13] [14] [15] [16] [17] ☞ u-blox AT Commands Manual, Doc. No. UBX-13002752 u-blox LARA-R2 series System Integration Manual, Doc. No. UBX-16010573 u-blox Android RIL Production delivery Application note, Doc. No. UBX-13002041 u-blox GNSS Implementation Application Note, Doc. No. UBX-13001849 u-blox Mux Implementation Application Note, Doc. No. UBX-13001887 u-blox Package Information User Guide, Doc. No.
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LARA-R2 series - Data Sheet Revision history Revision Date Name Comments R01 03-Mar-2016 sses Initial release R02 31-May-2016 sses Document applicability updated to LARA-R204 and LARA-R211. Improved description of VCC, Power-on, Reset, Host select, UART, USB, HSIC, GPIO pins R03 15-Jul-2016 sses Added description of reels and tapes. Added current consumption and RF performance figures. Updated description of Power-on, Reset, UART, USB pins. R04 11-Oct-2016 sses Updated audio support.
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LARA-R2 series - Data Sheet Contact For complete contact information, visit us at www.u-blox.com. u-blox Offices North, Central and South America u-blox America, Inc. Phone: E-mail: +1 703 483 3180 info_us@u-blox.com Regional Office West Coast: Phone: E-mail: +1 408 573 3640 info_us@u-blox.com Headquarters Europe, Middle East, Africa Asia, Australia, Pacific u-blox AG Phone: +65 6734 3811 E-mail: info_ap@u-blox.com Support: support_ap@u-blox.com Phone: +41 44 722 74 44 E-mail: info@u-blox.