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LARA-R2 series - System Integration Manual

UBX-16010573 - R12

Contents

Page 6 of 157

2.15.2

Layout checklist ......................................................................................................................... 130

2.15.3

Antenna checklist ...................................................................................................................... 130

Handling and soldering ........................................................................................... 131

3.1

Packaging, shipping, storage and moisture preconditioning ............................................................. 131

3.2

Handling ........................................................................................................................................... 131

3.3

Soldering .......................................................................................................................................... 132

3.3.1

Soldering paste ......................................................................................................................... 132

3.3.2

Reflow soldering ....................................................................................................................... 132

3.3.3

Optical inspection ...................................................................................................................... 133

3.3.4

Cleaning .................................................................................................................................... 133

3.3.5

Repeated reflow soldering ......................................................................................................... 134

3.3.6

Wave soldering ......................................................................................................................... 134

3.3.7

Hand soldering .......................................................................................................................... 134

3.3.8

Rework ...................................................................................................................................... 134

3.3.9

Conformal coating .................................................................................................................... 134

3.3.10

Casting ...................................................................................................................................... 134

3.3.11

Grounding metal covers ............................................................................................................ 134

3.3.12

Use of ultrasonic processes ........................................................................................................ 134

Approvals .................................................................................................................. 135

4.1

Product certification approval overview............................................................................................. 135

4.2

US Federal Communications Commission notice ............................................................................... 136

4.2.1

Safety warnings review the structure ......................................................................................... 136

4.2.2

Declaration of conformity .......................................................................................................... 136

4.2.3

Modifications ............................................................................................................................ 137

4.3

Innovation, Science and Economic Development Canada notice ....................................................... 138

4.3.1

Declaration of Conformity ......................................................................................................... 138

4.3.2

Modifications ............................................................................................................................ 139

4.4

European Conformance CE mark ...................................................................................................... 141

Product testing ......................................................................................................... 142

5.1

u-blox in-series production test ......................................................................................................... 142

5.2

Test parameters for OEM manufacturers .......................................................................................... 143

5.2.1

“Go/No go” tests for integrated devices .................................................................................... 143

5.2.2

Functional tests providing RF operation ..................................................................................... 143

Appendix ........................................................................................................................ 145

Migration between SARA-U2 and LARA-R2 ........................................................... 145

A.1

Overview .......................................................................................................................................... 145

A.2

Pin-out comparison between SARA-U2 and LARA-R2 ....................................................................... 149

A.3

Schematic for SARA-U2 and LARA-R2 integration ............................................................................. 151

Glossary .................................................................................................................... 152

Related documents ........................................................................................................ 155

Revision history .............................................................................................................. 156

Содержание LARA-R203

Страница 1: ...he features and the system integration of LARA R2 series multi mode cellular modules These modules are a complete cost efficient and performance optimized LTE Cat 1 3G 2G multi mode solution covering...

Страница 2: ...BX 17012269 End of Life LARA R204 02B 01 31 35 A01 03 UBX 18013471 Initial Production LARA R211 LARA R211 02B 00 30 31 A01 00 UBX 17012270 Initial Production LARA R211 02B 01 30 31 TBD UBX 17054295 In...

Страница 3: ...ecessary information to successfully design in and configure these u blox cellular modules This manual has a modular structure It is not necessary to read it from the beginning to the end The followin...

Страница 4: ...4 1 7 Antenna interface 35 1 7 1 Antenna RF interfaces ANT1 ANT2 35 1 7 2 Antenna detection interface ANT_DET 37 1 8 SIM interface 37 1 8 1 SIM card interface 37 1 8 2 SIM card detection interface SIM...

Страница 5: ...ET_N 86 2 3 3 Module host configuration selection 87 2 4 Antenna interface 88 2 4 1 Antenna RF interface ANT1 ANT2 88 2 4 2 Antenna detection interface ANT_DET 95 2 5 SIM interface 97 2 6 Data communi...

Страница 6: ...oduct certification approval overview 135 4 2 US Federal Communications Commission notice 136 4 2 1 Safety warnings review the structure 136 4 2 2 Declaration of conformity 136 4 2 3 Modifications 137...

Страница 7: ...LARA R2 series System Integration Manual UBX 16010573 R12 Contents Page 7 of 157 Contact 157...

Страница 8: ...orm factor compatible with the u blox SARA LISA and TOBY cellular module families this facilitates easy migration from u blox GSM GPRS CDMA UMTS HSPA and LTE high data rate modules maximizes the inves...

Страница 9: ...Jamming detection Embedded TCP UDP stack Embedded HTTP FTP SSL FOTA eCall ERA GLONASS Dual stack IPv4 IPv6 Standard Professional Automotive LARA R202 North America 2 4 5 12 850 1900 1 1 1 1 1 9 LARA...

Страница 10: ...Hz Band 3 1800 MHz LARA R280 Band 1 2100 MHz LTE Power Class Power Class 3 23 dBm UMTS HSDPA HSUPA Power Class Class 3 24 dBm GSM GPRS GMSK Power Class Power Class 4 33 dBm for E GSM band Power Class...

Страница 11: ...1 of the module via power amplifier PA SAW band pass filters band specific duplexer and antenna switch Dual receiving paths are implemented according to LTE Receiver Diversity radio technology support...

Страница 12: ...of the LARA R2 series modules with pins grouped by function Function Pin Name Pin No I O Description Remarks Power VCC 51 52 53 I Module supply input VCC supply circuit affects the RF performance and...

Страница 13: ...quired certification schemes See section 1 7 for description and requirements See section 2 4 for external circuit design in ANT2 62 I Secondary antenna Rx only for Rx diversity 50 nominal characteris...

Страница 14: ...output Circuit 125 RI in ITU T V 24 See section 1 9 1 for functional description See section 2 6 1 for external circuit design in DTR 9 I UART data terminal ready input 1 8 V input Circuit 108 2 DTR...

Страница 15: ...nded See section 1 9 3 for functional description See section 2 6 3 for external circuit design in DDC SCL 27 O I 2 C bus clock line 1 8 V open drain for communication with I2C slave devices See secti...

Страница 16: ...natively configurable as GPIO I 2 S not supported by LARA R204 02B and LARA R220 62B See sections 1 10 and 1 12 for functional description See sections 2 7 and 2 8 for external circuit design in Clock...

Страница 17: ...ng the VCC supply Idle Module is switched on with application interfaces temporarily disabled or suspended the module is temporarily not ready to communicate with an external device by means of the ap...

Страница 18: ...1 9 1 4 and the u blox AT Commands Manual 2 When a data or voice connection is initiated the module enters connected mode from active mode Connected mode is suspended if Tx Rx data is not in progress...

Страница 19: ...to the low current consumption during low power idle mode with power saving enabled as described in section 1 5 1 5 LARA R211 modules provide separate supply inputs over the three VCC pins VCC pins 52...

Страница 20: ...ded operating range is not recommended and may affect device reliability VCC average current Support with adequate margin the highest averaged VCC current consumption value in connected mode condition...

Страница 21: ...han the one in the low bands due to the 3GPP transmitter output power specifications During a GSM call current consumption is not so significantly high in receiving or in monitor bursts and it is low...

Страница 22: ...with a periodicity of 4 615 ms width of 1 frame 8 slots bursts so with a 1 2 duty cycle according to 2G TDMA If the module is in GPRS connected mode in the 1800 or 1900 MHz bands the current consumpt...

Страница 23: ...G that differs from the TDMA implemented in the 2G case In the worst case scenario corresponding to a continuous transmission and reception at maximum output power approximately 250 mW or 24 dBm the a...

Страница 24: ...nsmission and reception are continuously enabled in FDD In the worst case scenario corresponding to a continuous transmission and reception at maximum output power approximately 250 mW or 24 dBm the a...

Страница 25: ...k This is the paging period parameter fixed by the base station through broadcast channel sent to all users on the same serving cell For 2G radio access technology the paging period can vary from 470...

Страница 26: ...igure 10 illustrates a typical example of the module current consumption profile when power saving is disabled In such case the module is registered with the network and while active mode is maintaine...

Страница 27: ...e specified in the Input characteristics of Supply Power pins table in LARA R2 series Data Sheet 1 The RTC can be supplied from an external back up battery through the V_BCKP when the main module volt...

Страница 28: ...of the cellular module as described in Figure 12 The output of this regulator is enabled when the module is switched on and it is disabled when the module is switched off Baseband Processor 51 VCC 52...

Страница 29: ...lication releases the PWR_ON input pin from the low logic level after the VCC supply voltage stabilizes at its proper nominal value within the operating range When the LARA R2 series modules are in th...

Страница 30: ...l Tristate Floating Internal Reset OFF ON Start of interface configuration Module interfaces are configured Start up event Figure 14 LARA R2 series switch on sequence description The greeting text can...

Страница 31: ...F command waiting for the command response for an appropriate time period see the u blox AT Commands Manual 2 and then a proper VCC supply must be held at least until the end of the modules internal s...

Страница 32: ...does not occur e g applying a proper low level to the PWR_ON input or applying a proper low level to the RESET_N input and enters not powered mode if the supply is removed from the VCC pins VCC V_BCK...

Страница 33: ...P Then the module remains in power off mode as long as a switch on event does not occur e g applying a proper low level to the PWR_ON input or applying a proper low level to the RESET_N input and ente...

Страница 34: ...a low level on the RESET_N input during modules normal operation the RESET_N line should be set low only if reset or shutdown via AT commands fails or if the module does not provide a reply to a spec...

Страница 35: ...range of the antenna connected to the ANT1 port depends on the operating bands of the used cellular module and the used mobile network Return Loss S11 10 dB VSWR 2 1 recommended S11 6 dB VSWR 3 1 acc...

Страница 36: ...performance requirements as the TIS specified by applicable related certification schemes Table 8 Summary of secondary Rx antenna RF interface ANT2 requirements Item Requirements Remarks Efficiency im...

Страница 37: ...rd or chip Both 1 8 V and 3 V SIM types are supported activation and deactivation with an automatic voltage switch from 1 8 V to 3 V is implemented according to the ISO IEC 7816 3 specifications The V...

Страница 38: ...is a 9 wire 1 8 V unbalanced asynchronous serial interface available on all the LARA R2 series modules supporting AT command mode8 Data mode and Online command mode8 Multiplexer protocol functionality...

Страница 39: ...ult The following baud rates can be configured by AT command see u blox AT Commands Manual 2 IPR 9 600 bit s 19 200 bit s 38 400 bit s 57 600 bit s 115 200 bit s default value when one shot autobaudin...

Страница 40: ...nnel Channel 1 5 AT commands data connection Channel 6 GNSS tunneling 10 Table 10 Default UART AT interface configuration 1 9 1 3 UART signal behavior At the module switch on before the UART interface...

Страница 41: ...if the line is not activated by the DTE an active pull up is enabled inside the module on the RTS input If the HW flow control is enabled as it is by default the module monitors the RTS line to detect...

Страница 42: ...ts the DCD line to the ON state then answers with a CONNECT to confirm the ATD 99 command The DCD ON is not related to the context activation but with the data mode Circuit Switched Data call To estab...

Страница 43: ...ival if several events occur coincidently or in quick succession each event independently triggers the RI line although the line will not be deactivated between each event As a result the RI line may...

Страница 44: ...and wake up 0 Enabled AT K3 ON ON or OFF Data sent by the DTE are correctly received by the module Data sent by the module is correctly received by the DTE 0 Enabled AT K3 OFF ON or OFF Data sent by t...

Страница 45: ...er activities If the module needs to transmit some data e g URC the UART is temporarily enabled to send data If the DTE sends data with HW flow control disabled the first character sent causes the UAR...

Страница 46: ...up to active mode according to any required activity related to the network e g for the periodic paging reception described in section 1 5 1 5 or for any other required RF transmission reception or a...

Страница 47: ...ive and the timeout from last data received to idle mode start is set to 2000 frames AT UPSV 1 2000 Hardware flow control is disabled Figure 22 shows the case where the UART module is disabled and onl...

Страница 48: ...tings To set the AT UPSV 1 AT UPSV 2 or AT UPSV 3 configuration over the USB interface the autobauding must be previously disabled on the UART by the IPR AT command over the used USB AT interface and...

Страница 49: ...the VUSB_DET input the VUSB_DET senses the USB supply voltage and absorbs only a few microamperes The USB interface is controlled and operated with AT commands according to 3GPP TS 27 007 6 3GPP TS 2...

Страница 50: ...B endpoints available with the default USB profile Default profile configuration Interface 0 Abstract Control Model EndPoint Transfer Interrupt Interface 1 Data EndPoint Transfer Bulk EndPoint Transfe...

Страница 51: ...suspended and a power saving configuration is enabled by the AT UPSV command the module automatically enters the low power idle mode whenever possible but it wakes up to active mode according to any r...

Страница 52: ...see 1 14 14 and the Firmware update application note 23 FW upgrades by means of the u blox EasyFlash tool see the Firmware update application note 23 Trace log capture diagnostic purpose The HSIC inte...

Страница 53: ...ver from any host processor The modules feature embedded GNSS aiding that is a set of specific features developed by u blox to enhance GNSS performance decreasing the Time To First Fix TTFF thus allow...

Страница 54: ...e duration of the GNSS receiver VCC outage and to maintain the configuration settings saved in the backup RAM 1 9 5 SDIO interface The Secure Digital Input Output interface is not supported by the 02...

Страница 55: ...is set high low with a 50 duty cycle high for 16 clock cycles low for 16 clock cycles according to the 32 clock cycle frame length The I2 S interface can be alternatively set in different roles by th...

Страница 56: ...ected to the cellular module GPIO2 GPIO1 GPIO4 GNSS data ready 17 Sense when u blox GNSS receiver connected to the module is ready for sending data by the DDC I 2 C GPIO3 GPIO3 GNSS RTC sharing 18 RTC...

Страница 57: ...board and diagnostic circuit on antenna assembly design in guidelines 1 14 3 Jamming detection Congestion detection i e jamming detection is not supported by the 02 and 62 product versions In real ne...

Страница 58: ...details about embedded TCP IP and UDP IP functionalities see the u blox AT Commands Manual 2 1 14 7 FTP LARA R2 series provide embedded File Transfer Protocol FTP services Files are read and stored in...

Страница 59: ...ducts For a complete list of supported configurations and settings see the u blox AT Commands Manual 2 Settings Value Meaning Certificates validation level Level 0 The server certificate will not be c...

Страница 60: ...a SIM with access to the data bearers supported by the network With the BIP for Over the Air SIM provisioning the data transfer from and to the SIM uses either an already active PDP context or a new...

Страница 61: ...us applications Positioning through cellular information CellLocate u blox CellLocate enables the device position estimation based on the parameters of the mobile network cells visible to the specific...

Страница 62: ...lls provides increased accuracy based on the intersection of areas of visibility CellLocate is implemented using a set of two AT commands that allow configuration of the CellLocate service AT ULOCCELL...

Страница 63: ...hen a position is sent to the CellLocate server u blox is unable to track the SIM used or the specific device 1 14 13 Wi Fi integration Integration of u blox short range communication Wi Fi modules is...

Страница 64: ...se the temperature nearby The best solution is always to properly design the system where the module is integrated Nevertheless an extra check security mechanism embedded into the module is a good sol...

Страница 65: ...e conditions Figure 26 shows the flow diagram implemented for the Smart Temperature Supervisor IF STS enabled Read temperature IF t 1 Ti t 1 IF t 2 Ti t 2 Send notification warning Send notification d...

Страница 66: ...ing the AT UPSV command for the complete description of the AT UPSV command see the u blox AT Commands Manual 2 When power saving is enabled the module automatically enters the low power idle mode whe...

Страница 67: ...equired to guarantee SIM card functionality and compliance with applicable conformance standards also reducing the risk of RF coupling Carefully follow the suggestions provided in section 2 5 for sche...

Страница 68: ...st power efficiency for the overall application and minimizes current drawn from the main supply source See sections 2 2 1 2 and 2 2 1 6 0 2 2 1 12 for the specific design in The use of an LDO linear...

Страница 69: ...ing regulator is suggested when the difference from the available supply rail to the VCC value is high switching regulators provide good efficiency transforming a 12 V or greater voltage supply to the...

Страница 70: ...R 0402 10 16 V GRM155R71C103KA01 Murata C3 680 pF Capacitor Ceramic X7R 0402 10 16 V GRM155R71H681KA01 Murata C4 22 pF Capacitor Ceramic C0G 0402 5 25 V GRM1555C1H220JZ01 Murata C5 10 nF Capacitor Cer...

Страница 71: ...urata C2 100 F Capacitor Tantalum B_SIZE 20 6 3V 15m T520B107M006ATE015 Kemet C3 5 6 nF Capacitor Ceramic X7R 0402 10 50 V GRM155R71H562KA88 Murata C4 6 8 nF Capacitor Ceramic X7R 0402 10 50 V GRM155R...

Страница 72: ...applying the VCC supply The module can be otherwise switched on by forcing a low level on the RESET_N pin during the VCC rising edge and then releasing the RESET_N pin when the VCC supply voltage sta...

Страница 73: ...maximum limit of the module VCC normal operating range e g 4 1 V as in the circuit described in Figure 31 and Table 23 This reduces the power on the linear regulator and improves the whole thermal de...

Страница 74: ...ry with its output circuit must be capable of avoiding a VCC voltage drop below the operating range summarized in Table 6 during transmit bursts 2 2 1 5 Guidelines for VCC supply circuit design using...

Страница 75: ...a GRM155R71C103K to filter digital logic noise from clocks and data sources 100 nF capacitor e g Murata GRM155R61C104K to filter digital logic noise from clocks and data sources A suitable series ferr...

Страница 76: ...g the module still switched on and functional Figure 33 describes a possible application circuit C1 C4 GND C3 C2 C6 LARA R211 52 VCC 53 VCC 51 VCC Li Ion Li Pol Battery C7 SW VIN SHDNn GND FB C8 R1 R2...

Страница 77: ...rating under unsafe thermal conditions The L6924U as a linear charger is more suitable for applications where the charging source has a relatively low nominal voltage 5 V so that a switching charger i...

Страница 78: ...Vout Vin Li Ion Li Pol Battery Pack GND System 12 V Primary Source Charge controller DC DC converter and battery FET control logic Vbat Figure 35 Charger regulator with an integrated power path manag...

Страница 79: ...53 VCC 51 VCC Primary Source R3 U1 EN ILIM ISET TMR AGND VIN C2 C1 12V NTC PGND SW SYS BAT C4 R1 R2 D1 Li Ion Li Pol Battery Pack B1 C5 Li Ion Li Polymer Battery Charger Regulator with Power Path Mana...

Страница 80: ...than 50 m to minimize voltage drops Adequate maximum Drain current see the LARA R2 series Data Sheet 1 for module consumption figures Low leakage current to minimize the current consumption C3 GND C2...

Страница 81: ...ase Shielding of the switching DC DC converter circuit or at least the use of shielded inductors for the switching DC DC converter may be considered since all switching power supplies may potentially...

Страница 82: ...1 minute after VCC removal b using a 70 mF capacitor to let the RTC run for 10 hours after VCC removal c using a non rechargeable battery Reference Description Part Number Manufacturer C1 100 F Tanta...

Страница 83: ...circuit with a u blox GNSS receiver The internal regulator for V_BCKP is optimized for low leakage current and very light loads Do not apply loads which might exceed the limit for the maximum availabl...

Страница 84: ...it for maximum available current from V_INT supply see the LARA R2 series Data Sheet 1 as this can cause malfunctions in the internal circuitry Since the V_INT supply is generated by an internal switc...

Страница 85: ...suitable to drive the PWR_ON input from an application processor as the pin is equipped with an internal active pull up resistor to the V_BCKP supply as described in Figure 39 A compatible push pull...

Страница 86: ...t is equipped with an internal pull up to V_BCKP supply as described in Figure 40 A compatible push pull output of an application processor can also be used In any case take care to set the proper lev...

Страница 87: ...pply voltage to the HOST_SELECT pin before the switch on of its supply source V_INT to avoid latch up of circuits and allow a proper boot of the module If the external signal connected to the cellular...

Страница 88: ...ted o The radiation performance mainly depends on the antennas It is required to select antennas with optimal radiating performance in the operating bands o RF cables should be carefully selected to h...

Страница 89: ...iding appropriate gain figure i e combined antenna directivity and efficiency figure so that the electromagnetic field radiation intensity do not exceed the regulatory limits specified in some countri...

Страница 90: ...m 35 m 35 m 270 m 270 m 760 m L1 Copper L3 Copper L2 Copper L4 Copper FR 4 dielectric FR 4 dielectric FR 4 dielectric 380 m 500 m 500 m Figure 42 Example of a 50 coplanar waveguide transmission line d...

Страница 91: ...ctric thickness is below 200 m to reduce parasitic capacitance to ground The transmission line width and spacing to GND must be uniform and routed as smoothly as possible avoid abrupt changes of width...

Страница 92: ...e application PCB can be reduced down to a minimum size that must be similar to one quarter of a wavelength of the minimum frequency that must be radiated As a numerical example Frequency 750 MHz Wave...

Страница 93: ...2602 GSM WCDMA LTE SMD Antenna 698 960 MHz 1710 2170 MHz 2490 2700 MHz 50 0 x 8 0 x 3 2 mm Table 32 Examples of internal surface mount antennas Table 33 lists some examples of possible internal off bo...

Страница 94: ...waterproof IP67 rated with cable and SMA M 698 960 MHz 1710 2170 MHz 2400 2700 MHz 205 8 x 58 x 12 4 mm Laird Tech TRA6927M3PW 001 GSM WCDMA LTE screw mount antenna with N type F 698 960 MHz 1710 2170...

Страница 95: ...1 GHz LQG15HS68NJ02 Murata R1 10 k Resistor 0402 1 0 063 W RK73H1ETTP1002F KOA Speer J1 J2 SMA Connector 50 Through Hole Jack SMA6251A1 3GT50G 50 Amphenol C4 C5 22 pF Capacitor Ceramic C0G 0402 5 25...

Страница 96: ...ans that that the antenna is not connected or the RF cable is broken Reported values below the measurement range minimum limit 1 k highlights a short to GND at the antenna or along the RF cable Measur...

Страница 97: ...for applications requiring a change of SIM card during the product lifetime A SIM card holder can have 6 or 8 positions if a mechanical card presence detector is not provided or it can have 6 2 or 8...

Страница 98: ...ronics PESD0402 140 on each externally accessible SIM line close to each related pad of the SIM connector the ESD sensitivity rating of the SIM interface pins is 1 kV HBM so that according to the EMC...

Страница 99: ...SIM SIM_CLK SIM_IO SIM_RST to prevent RF coupling especially in case the RF antenna is placed closer than 10 30 cm from the SIM card holder Limit the capacitance and series resistance on each signal o...

Страница 100: ...M connector to prevent RF coupling especially in case the RF antenna is placed closer than 10 30 cm from the SIM card holder Provide a low capacitance i e less than 10 pF ESD protection e g Tyco Elect...

Страница 101: ...h between more than 2 SIM a circuit similar to the one described in Figure 49 can be implemented for a 4 SIM circuit using proper 4 throw switch instead of the suggested 2 throw switches Follow these...

Страница 102: ...detection not implemented 2 5 1 2 Guidelines for SIM layout design The layout of the SIM card interface lines VSIM SIM_CLK SIM_IO SIM_RST may be critical if the SIM card is placed far away from the LA...

Страница 103: ...0 V Application Processor DTE is used then it is recommended to connect the 1 8 V UART interface of the module DCE by means of appropriate unidirectional voltage translators using the module V_INT ou...

Страница 104: ...TE is used then it is recommended to connect the 1 8 V UART interface of the module DCE by means of appropriate unidirectional voltage translators using the module V_INT output as a 1 8 V supply for t...

Страница 105: ...l communication 1 8 V DTE If a 3 0 V Application Processor DTE is used then it is recommended to connect the 1 8 V UART interface of the module DCE by means of appropriate unidirectional voltage trans...

Страница 106: ...ule side to the RS 232 standard If a 1 8 V Application Processor DTE is used the circuit that should be implemented as described in Figure 56 TxD Application Processor 1 8V DTE RxD RTS CTS DTR DSR RI...

Страница 107: ...er saving is enabled the application circuit with the TXD and RXD lines only is not recommended During command mode the DTE must send to the module a wake up character or a dummy AT before each comman...

Страница 108: ...the line connected to this pin as described in Figure 58 and Table 44 The USB interface pins ESD sensitivity rating is 1 kV Human Body Model according to JESD22 A114F A higher protection level could...

Страница 109: ...is as close as possible to 30 Consider design rules for USB_D USB_D similar to RF transmission lines these being coupled differential micro strip or buried stripline avoid any stubs abrupt change of...

Страница 110: ...ame PCB of the LARA R2 series module without using connectors cables as described in Figure 61 The modules include also the HOST_SELECT pin to select the module host application processor configuratio...

Страница 111: ...itive analog inputs since the signals can cause the radiation of some harmonics of the digital data frequency Figure 42 and Figure 43 provide two examples of proper 50 coplanar waveguide designs The f...

Страница 112: ...ch are not tolerant to higher voltage values e g 3 0 V Connect the DDC I2 C pull ups to the V_INT 1 8 V supply source or another 1 8 V supply source enabled after V_INT e g as the GNSS 1 8 V supply pr...

Страница 113: ...ule is connected to the V_BCKP backup supply input pin of the GNSS receiver to provide the supply for the GNSS real time clock and backup RAM when the VCC supply of the cellular module is within its o...

Страница 114: ...e needed to properly supply an external LNA depending on the characteristics of the used LNA adding a series ferrite bead and a bypass capacitor e g the Murata BLM15HD182SN1 ferrite bead and the Murat...

Страница 115: ...lox GNSS 3 0 V receiver 24 GPIO3 1V8 B1 A1 GND U3 B2 A2 VCCB VCCA Unidirectional Voltage Translator C4 C5 3V0 TxD1 R1 IN OUT GNSS LDO Regulator SHDNn R2 VMAIN 3V0 U1 23 GPIO2 26 SDA 27 SCL R4 R5 1V8 S...

Страница 116: ...rface circuit design will be described in detail in a successive release of the System Integration Manual Do not apply voltage to any SDIO interface pin before the switch on of SDIO interface supply s...

Страница 117: ...i e synch signal frequency configurable by AT UI2S I2S_sample_rate parameter o 8 kHz o 11 025 kHz o 12 kHz o 16 kHz o 22 05 kHz o 24 kHz o 32 kHz o 44 1 kHz o 48 kHz The same serial clock frequency o...

Страница 118: ...ch can concurrently communicate with other I2 C devices and control an external audio codec The V_INT output supplies the external audio codec defining proper digital interfaces voltage level Addition...

Страница 119: ...sitivity rating of I2 S interface pins is 1 kV Human Body Model according to JESD22 A114 A higher protection level could be required if the lines are externally accessible and it can be achieved by mo...

Страница 120: ...wnlink path speaker receiver are the following The physical width of the audio output lines on the application board must be wide enough to minimize series resistance since the lines are connected to...

Страница 121: ...e on Technology Corporation T1 NPN BJT Transistor BC847 Infineon Table 49 Components for network indication application circuit Use transistors with at least an integrated resistor in the base pin or...

Страница 122: ...radiate some digital frequency harmonics which can produce Electro Magnetic Interference affecting module RF and analog parts circuits performance or implement proper countermeasures to avoid any pos...

Страница 123: ...Foot print Top View K M1 M1 M2 E H J E B K G H J D A D O O L N L I F1 F2 G G H H H G G Pin 1 ANT1 ANT2 K M1 M1 M2 E H J E B K G H J D A D O O L N L I F1 F2 G G H H H G G ANT1 ANT2 Pin 1 Paste mask To...

Страница 124: ...a given operating ambient temperature This improves the device long term reliability in particular for applications operating at high ambient temperature Recommended hardware techniques to be used to...

Страница 125: ...301 489 1 19 Applicability of the ESD immunity test to the relative device ports or the relative interconnecting cables to auxiliary equipments depends on device accessible interfaces and manufacturer...

Страница 126: ...ee ETSI EN 301 489 1 19 to satisfy the requirements for ESD immunity test summarized in Table 51 Antenna interface The ANT1 port of LARA R2 series modules provides ESD immunity up to 4 kV for direct C...

Страница 127: ...A higher protection level could be required if SIM interface pins are externally accessible on the application board The following precautions are suggested to achieve higher protection level A low ca...

Страница 128: ...0k Connector 27pF ESD Secondary Cellular Antenna 33pF 82nH 82nH 56 Connector Primary Cellular Antenna 33pF ANT1 GND 16 GPIO1 3V8 Network Indicator RSVD 33 RSVD 99 HSIC_DATA 100 HSIC_STRB 21 HOST_SELEC...

Страница 129: ...onnected to all the UART pins of the LARA R2 series modules TXD RXD DTR DCD for diagnostic purpose in particular providing a 0 series jumper on each line to detach each UART pin of the module from the...

Страница 130: ...and should not be routed close to any RF line part HSIC traces must be designed as 50 nominal characteristic impedance transmission lines Keep the SDIO traces short avoid stubs avoid coupling with an...

Страница 131: ...ng area The main principle of an EPA is that there are no highly charging materials near ESD sensitive electronics all conductive materials are grounded workers are grounded and charge build up on ESD...

Страница 132: ...nes for temperature profiling for mass soldering reflow and wave processes published 2001 Reflow profiles are to be selected according to the following recommendations Failure to observe these recomme...

Страница 133: ...ical inspection After soldering the LARA R2 series modules inspect the modules optically to verify that the module is properly aligned and centered 3 3 4 Cleaning Cleaning the soldered modules is not...

Страница 134: ...rovide 100 protection for the module from coating liquids with low viscosity and therefore care is required in applying the coating Conformal coating of the module will void the warranty 3 3 10 Castin...

Страница 135: ...e to be deployed in the market The required certification scheme approvals and relative testing specifications differ depending on the country or the region where the device that integrates LARA R2 se...

Страница 136: ...rference received including interference that may cause undesired operation Radiofrequency radiation exposure Information this equipment complies with FCC radiation exposure limits prescribed for an u...

Страница 137: ...hanges or modifications not expressly approved by the party responsible for compliance could void the user s authority to operate the equipment Additional Note as per 47CFR15 105 this equipment has be...

Страница 138: ...his equipment should be installed and operated with a minimum distance of 20 cm between the radiator and the body of the user or nearby persons This transmitter must not be co located or operating in...

Страница 139: ...xposure Information The radiated output power of the u blox Cellular Module is below the Innovation Science and Economic Development Canada ISED radio frequency exposure limits The u blox Cellular Mod...

Страница 140: ...d IC lorsqu il est install dans des produits h tes particuliers qui fonctionnent dans des conditions d exposition des appareils mobiles les antennes se situent plus de 20 centim tres du corps d une pe...

Страница 141: ...This equipment should be installed and operated with a minimum distance of 20 cm between the radiator and the body of the user or nearby persons This transmitter must not be co located or operating i...

Страница 142: ...cal automatic test equipment ATE in a production line The following typical tests are among the production tests Digital self test firmware download Flash firmware verification IMEI programming Measur...

Страница 143: ...formance tests see the following section 5 2 2 for details 5 2 1 Go No go tests for integrated devices A Go No go test is typically performed to compare the signal quality with a Golden Device in a lo...

Страница 144: ...ring cellular signaling protocol This emission can generate interference that can be prohibited by law in some countries The use of this feature is intended for testing purposes in controlled environm...

Страница 145: ...USB _ D RSVD GND GPIO2 GPIO3 SDA SCL GPIO4 GND GND GND GND VCC VCC RSVD I2S_TXD I2S_CLK SIM_CLK SIM_IO VSIM SIM_DET VCC SIM_RST I2S_RXD I2S_WA GND GND GND GND GND GND GND GND GND ANT _ DET ANT SARA U...

Страница 146: ...lar module Nested application board TOBY cellular module Figure 74 Nested design concept description SARA LARA LISA and TOBY modules alternatively mounted on the same PCB A different top side stencil...

Страница 147: ...Rx diversity Antenna Detection VCC module supply in V_BCKP V_INT 1 8 V supply out PWR_ON RESET_N Host select SIM 1 8 V 3 0 V SIM detection UART 1 8 V USB 2 0 HSIC SDIO 1 8 V DDC I 2 C 1 8 V Analog aud...

Страница 148: ...0 LARA R204 LARA R211 800 850 900 950 1700 1750 1800 1850 1900 1950 2000 2050 2100 2150 2200 13 13 4 4 746 787 1710 2155 750 2500 2550 2600 2650 2700 700 800 850 900 950 1700 1750 1800 1850 1900 1950...

Страница 149: ...nctional difference 13 RXD UART Data Output 1 8 V Driver strength 6 mA RXD UART Data Output 1 8 V Driver strength 6 mA No functional difference 14 GND Ground GND Ground 15 PWR_ON Power on Input No int...

Страница 150: ...nal difference 41 VSIM SIM Supply Output VSIM SIM Supply Output No functional difference 42 SIM_DET 1 8V SIM Detection SIM_DET 1 8 V GPIO settable as SIM Detection No functional difference 43 GND Grou...

Страница 151: ..._DET 10k Connector 27pF ESD Secondary Cellular Antenna 33pF 82nH 82nH 56 Connector Primary Cellular Antenna 33pF ANT ANT1 V_INT BCLK LRCLK Audio Codec MAX9860 SDIN SDOUT SDA SCL 36 I2S_CLK 34 I2S_WA 3...

Страница 152: ...CSFB Circuit Switched Fall Back DC Direct Current DCE Data Communication Equipment DDC Display Data Channel interface DL Down Link Reception DRX Discontinuous Reception DSP Digital Signal Processing D...

Страница 153: ...pment Identity IP Internet Protocol ISO International Organization for Standardization ITU International Telecommunications Union LCC Leadless Chip Carrier LDO Low Dropout LGA Land Grid Array LNA Low...

Страница 154: ...HT Through Hole Technology TI Texas Instruments TIS Total Isotropic Sensitivity TP Test Point TRP Total Radiated Power TTFF Time To First Fix UART Universal Asynchronous Receiver Transmitter UDP User...

Страница 155: ...S 36 521 1 Evolved Universal Terrestrial Radio Access User Equipment conformance specification Radio transmission and reception Part 1 Conformance Testing 15 3GPP TS 36 521 2 Evolved Universal Terrest...

Страница 156: ...Apr 2017 sses Updated LARA R204 02B LARA R211 02B product status Added maximum antenna gain for LARA R211 R06 29 May 2017 sses Updated LARA R203 02B product status to Engineering Samples R07 30 Jun 2...

Страница 157: ...om Regional Office China Beijing Phone 86 10 68 133 545 E mail info_cn u blox com Support support_cn u blox com Regional Office China Chongqing Phone 86 23 6815 1588 E mail info_cn u blox com Support...

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u-blox LARA-R203, Руководство по системной интеграции

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