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TOBY-L2 and MPCI-L2 series - System Integration Manual

UBX-13004618 - R07

Advance Information

Design-in

Page 78 of 158

2.2.1.7

Guidelines for external battery charging circuit

TOBY-L2 modules do not have an on-board charging circuit. Figure 37 provides an example of a battery charger
design, suitable for applications that are battery powered with a Li-Ion (or Li-Polymer) cell.
In the application circuit, a rechargeable Li-Ion (or Li-Polymer) battery cell, that features proper pulse and DC
discharge current capabilities and proper DC series resistance, is directly connected to the

VCC

supply input of

TOBY-L2 module. Battery charging is completely managed by the STMicroelectronics L6924U Battery Charger IC
that, from a USB power source (5.0 V typ.), charges as a linear charger the battery, in three phases:



Pre-charge constant current

(active when the battery is deeply discharged): the battery is charged with a

low current, set to 10% of the fast-charge current



Fast-charge constant current

: the battery is charged with the maximum current, configured by the value

of an external resistor to a value suitable for USB power source (~500 mA)



Constant voltage

: when the battery voltage reaches the regulated output voltage (4.2 V), the L6924U

starts to reduce the current until the charge termination is done. The charging process ends when the
charging current reaches the value configured by an external resistor to ~15 mA or when the charging timer
reaches the value configured by an external capacitor to ~9800 s

Using a battery pack with an internal NTC resistor, the L6924U can monitor the battery temperature to protect
the battery from operating under unsafe thermal conditions.
Alternatively the L6924U, providing input voltage range up to 12 V, can charge from an AC wall adapter. When
a current-limited adapter is used, it can operate in quasi-pulse mode, reducing power dissipation.

C5

C8

C7

C6

C9

GND

TOBY-L2 series

71

VCC

72

VCC

70

VCC

+

USB

Supply

C3

R4

θ

U1

I

USB

I

AC

I

END

T

PRG

SD

V

IN

V

INSNS

MODE
ISEL

C2

C1

5V0

TH

GND

V

OUT

V

OSNS

V

REF

R1
R2
R3

Li-Ion/Li-Pol
Battery Pack

D1

B1

C4

Li-Ion/Li-Polymer
Battery Charger IC

C10

Figure 37: Li-Ion (or Li-Polymer) battery charging application circuit

Reference

Description

Part Number - Manufacturer

B1

Li-Ion (or Li-Polymer) battery pack with 470



NTC

Various manufacturer

C1, C4

1 µF Capacitor Ceramic X7R 0603 10% 16 V

GRM188R71C105KA12 - Murata

C2, C6

10 nF Capacitor Ceramic X7R 0402 10% 16 V

GRM155R71C103KA01 - Murata

C3

1 nF Capacitor Ceramic X7R 0402 10% 50 V

GRM155R71H102KA01 - Murata

C5

330 µF Capacitor Tantalum D_SIZE 6.3 V 45 m



T520D337M006ATE045 - KEMET

C7

100 nF Capacitor Ceramic X7R 0402 10% 16 V

GRM155R61A104KA01 - Murata

C8

68 pF Capacitor Ceramic C0G 0402 5% 50 V

GRM1555C1H680JA01 - Murata

C9

15 pF Capacitor Ceramic C0G 0402 5% 50 V

GRM1555C1H150JA01 - Murata

C10

8.2 pF Capacitor Ceramic C0G 0402 5% 50 V

GRM1555C1H8R2DZ01 - Murata

D1

Low Capacitance ESD Protection

USB0002RP or USB0002DP - AVX

R1, R2

24 k



Resistor 0402 5% 0.1 W

RC0402JR-0724KL - Yageo Phycomp

R3

3.3 k



Resistor 0402 5% 0.1 W

RC0402JR-073K3L - Yageo Phycomp

R4

1.0 k



Resistor 0402 5% 0.1 W

RC0402JR-071K0L - Yageo Phycomp

U1

Single Cell Li-Ion (or Li-Polymer) Battery Charger IC

L6924U - STMicroelectronics

Table 19: Suggested components for Li-Ion (or Li-Polymer) battery charging application circuit

«
...
76
77
78
79
80
...
»

Содержание MPCI-L2 series

Страница 1: ...hese modules are a complete and cost efficient LTE 3G 2G solution offering up to 150 Mb s download and 50 Mb s upload data rates covering up to six LTE bands up to five WCDMA DC HSPA bands and four GS...

Страница 2: ...CI L200 MPCI L200 00S 00 09 71 A01 15 UBX 14044437 MPCI L210 MPCI L210 00S 00 09 71 A01 15 UBX 14044437 u blox reserves all rights to this document and the information contained herein Products names...

Страница 3: ...d MPCI L2 series System Integration Manual provides the necessary information to successfully design and configure the u blox cellular modules This manual has a modular structure It is not necessary t...

Страница 4: ...Module power off 32 1 6 3 Module reset 34 1 6 4 Module configuration selection by host processor 34 1 7 Antenna interface 35 1 7 1 Antenna RF interfaces ANT1 ANT2 35 1 7 2 Antenna detection interface...

Страница 5: ...ply VCC or 3 3Vaux 70 2 2 2 RTC supply output V_BCKP 82 2 2 3 Generic digital interfaces supply output V_INT 84 2 3 System functions interfaces 85 2 3 1 Module power on PWR_ON 85 2 3 2 Module reset RE...

Страница 6: ...matic checklist 134 2 17 2 Layout checklist 135 2 17 3 Antenna checklist 135 3 Handling and soldering 136 3 1 Packaging shipping storage and moisture preconditioning 136 3 2 Handling 136 3 3 Soldering...

Страница 7: ...No go tests for integrated devices 147 5 2 2 RF functional tests 147 Appendix 149 A Glossary 149 B Migration between TOBY L1 and TOBY L2 151 B 1 Overview 151 B 2 Pin out comparison between TOBY L1 and...

Страница 8: ...series With LTE Category 4 data rates at up to 150 Mb s down link and 50 Mb s up link the TOBY L2 and MPCI L2 series modules are ideal for applications requiring the highest data rates and high speed...

Страница 9: ...210 Band 5 850 MHz Band 8 900 MHz Band 2 1900 MHz Band 1 2100 MHz TOBY L280 Band 5 850 MHz Band 8 900 MHz Band 2 1900 MHz Band 1 2100 MHz Band support TOBY L200 GSM 850 MHz E GSM 900 MHz DCS 1800 MHz...

Страница 10: ...ch DDC I2C SDIO UART Digital audio I2S ANT_DET Host Select Figure 1 TOBY L2 series block diagram As described in the Figure 2 each MPCI L2 series module integrates one TOBY L2 series module The MPCI L...

Страница 11: ...eiver Highly linear RF demodulator modulator capable GMSK 8 PSK QPSK 16 QAM 64 QAM Fractional N Sigma Delta RF synthesizer VCO Power Amplifiers PA amplify the Tx signal modulated by the RF transceiver...

Страница 12: ...rcuit design in System PWR_ON 20 I Power on input Internal active pull up to the VCC enabled See section 1 6 1 for functional description See section 2 3 1 for external circuit design in RESET_N 23 I...

Страница 13: ...not supported Input for VBUS 5 V typical USB supply sense See section 1 9 1 for functional description See section 2 6 1 for external circuit design in USB_D 27 I O USB Data Line D USB interface for...

Страница 14: ...O UART data set ready output GPIO Note UART DSR not supported by TOBY L200 00S TOBY L210 00S TOBY L200 50S TOBY L210 50S GPIO not supported by 00 01 50 product versions 1 8 V Circuit 107 in ITU T V 2...

Страница 15: ...O SDIO serial data 3 Note not supported by 00 01 product versions SDIO interface for communication with external Wi Fi chip See section 1 9 4 for functional description See section 2 6 4 for external...

Страница 16: ...configurable functions See section 1 11 for functional description See section 2 8 for external circuit design in GPIO4 25 I O GPIO Note not supported by 00 01 50 product versions 1 8 V GPIO with alte...

Страница 17: ...Primary antenna Main Tx Rx antenna interface 50 nominal characteristic impedance Antenna circuit affects the RF performance and compliance of the device integrating the module with applicable require...

Страница 18: ...ate by u blox EasyFlash tool and diagnostic 90 nominal differential impedance Z0 30 nominal common mode impedance ZCM Pull up or pull down resistors and external series resistors as required by the US...

Страница 19: ...off event see 1 6 2 the modules enter power off mode from active mode When in power off mode TOBY L2 modules can be switched on by PWR_ON RESET_N or an RTC alarm When in power off mode TOBY L2 modules...

Страница 20: ...ta signals from an external device unless power saving configuration is enabled by AT UPSV see sections 1 9 1 4 1 9 2 4 and u blox AT Commands Manual 3 When a data connection is initiated the module e...

Страница 21: ...during normal operation Within VCC or 3 3Vaux extended operating range See Supply Power pins section in the TOBY L2 Data Sheet 1 or in the MPCI L2 Data Sheet 2 The modules may switch off if the supply...

Страница 22: ...figures are quite less high than the one in the low bands due to 3GPP transmitter output power specifications During a GSM call current consumption is not so significantly high in receiving or in mon...

Страница 23: ...according to 2G TDMA If the module is in GPRS connected mode in the 1800 or 1900 MHz bands the current consumption figures are quite less high than the one in the low bands due to 3GPP transmitter out...

Страница 24: ...D WCDMA implemented in the 3G that differs from the TDMA implemented in the 2G case In the worst scenario corresponding to a continuous transmission and reception at maximum output power approximately...

Страница 25: ...commands are logically divided into a slot of 0 5 ms time length of one Resource Block thus the rate of power change can reach a maximum rate of 2 kHz Figure 8 shows an example of the module current c...

Страница 26: ...ck receptions is defined by the network This is the paging period parameter fixed by the base station through broadcast channel sent to all users on the same serving cell In case of 2G radio access te...

Страница 27: ...he paging period than that in the power saving mode Figure 10 illustrates a typical example of the module current consumption profile when power saving is disabled In such case the module is registere...

Страница 28: ...ied in the Input characteristics of Supply Power pins table in TOBY L2 series Data Sheet 1 The RTC can be supplied from an external back up battery through the V_BCKP when the main module voltage supp...

Страница 29: ...ternally used to source the generic digital I O interfaces of the TOBY L2 module as described in Figure 12 The output of this regulator is enabled when the module is switched on and it is disabled whe...

Страница 30: ...erating range The status of the PWR_ON input pin of TOBY L2 modules while applying the VCC module supply is not relevant during this phase the PWR_ON pin can be set high or low by the external circuit...

Страница 31: ...rface due to host device enumeration timings see section 1 9 1 The module is fully ready to operate after all interfaces are configured VCC or 3 3Vaux V_BCKP PWR_ON RESET_N or PERST V_INT Internal Res...

Страница 32: ...tal interfaces supply output V_INT is switched off by the module It is highly recommended to avoid an abrupt removal of the 3 3Vaux supply during MPCI L2 modules normal operations the power off proced...

Страница 33: ...OFF Tristate Floating ON Operational Tristate AT CPWROFF sent to the module 0 s 2 5 s 5 s OK replied by the module VCC can be removed Figure 15 TOBY L2 series power off sequence description The Intern...

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

Страница 35: ...line to allow proper RF reception The ANT2 Hirose U FL R SMT coaxial connector receptacle of MPCI L2 series modules has a nominal characteristic impedance of 50 and must be connected to the secondary...

Страница 36: ...onnection matches the 50 characteristic impedance of the ANT1 port The impedance of the antenna termination must match as much as possible the 50 nominal impedance of the ANT1 port over the operating...

Страница 37: ...e to comply with the Over The Air OTA radiated performance requirements as the TIS specified by applicable related certification schemes Table 9 Summary of secondary Rx antenna RF interface ANT2 requi...

Страница 38: ...ding automatic detection and configuration of the voltage required by the connected SIM card or chip Both 1 8 V and 3 V SIM types are supported Activation and deactivation with automatic voltage switc...

Страница 39: ...High Speed USB 2 0 compliant interface with maximum data rate of 480 Mb s representing the main interface for transferring high speed data with a host application processor the USB interface is availa...

Страница 40: ...nterface 1 Communication Data EndPoint Transfer Interrupt EndPoint Transfer Bulk EndPoint Transfer Bulk Interface 2 Communication Control AT commands EndPoint Transfer Interrupt Interface 3 Communicat...

Страница 41: ...C ECM for Ethernet over USB 3 CDC ACM for AT commands and data In case of this USB profile with the set of 4 functions described above the VID and PID are the following VID 0x1546 PID 0x1143 The switc...

Страница 42: ...evice In addition the module enters the suspended state when the hub port it is attached to is disabled This is referred to as USB selective suspend If the USB is suspended and a power saving configur...

Страница 43: ...he data circuit terminating equipment DCE according to the ITU T V 24 Recommendation 7 A host application processor connected to the module through the UART interface represents the data terminal equi...

Страница 44: ...ts 8N1 8 data bits no parity 1 stop bit default frame format 8E1 8 data bits even parity 1 stop bit 8O1 8 data bits odd parity 1 stop bit 7N2 7 data bits no parity 2 stop bits 7N1 7 data bits no parit...

Страница 45: ...ual channels are defined Channel 0 Control channel Channel 1 5 AT commands data connection Channel 6 GNSS tunneling not supported by 00 01 50 product versions Channel 7 SIM Access Profile not supporte...

Страница 46: ...and and the hardware flow control is not implemented in the DTE DCE connection data sent by the DTE can be lost the first character sent when the module is in low power idle mode will not be a valid c...

Страница 47: ...the DCD module output line is set by default to the OFF state high level at UART initialization The module then sets the DCD line according to the carrier detect status ON if the carrier is detected...

Страница 48: ...idle mode whenever possible and otherwise the active mode is maintained by the module see section 1 4 for definition and description of module operating modes referred to in this section The AT UPSV...

Страница 49: ...N or OFF Data sent by the DTE is correctly received by the module Data sent by the module is correctly received by the DTE if it is ready to receive data otherwise data is lost 2 Disabled AT K0 OFF ON...

Страница 50: ...the low power idle mode whenever possible but it wakes up to active mode according to the UART periodic wake up so that the module cyclically enters the low power idle mode and the active mode Additi...

Страница 51: ...ted in Figure 22 even if hardware flow control is disabled with AT UPSV 2 configuration AT UPSV 3 power saving enabled and controlled by the DTR line The UART interface is immediately disabled after t...

Страница 52: ...ow examples of common scenarios and timing constraints AT UPSV 1 power saving configuration is active and the timeout from last data received to idle mode start is set to 2000 frames AT UPSV 1 2000 Ha...

Страница 53: ...T would affect the data communication Additional considerations If the USB is connected and not suspended the module is forced to stay in active mode therefore the AT UPSV settings are overruled but t...

Страница 54: ...ol messages to the GNSS receiver via a dedicated DDC I2 C interface A 2 nd interface connected to the GNSS receiver is not necessary AT commands via the AT interfaces of the cellular module UART USB a...

Страница 55: ...because Wi Fi control messages are relayed to the Wi Fi module via the dedicated SDIO interface for more details see the Wi Fi AT commands in the u blox AT Commands Manual 3 u blox has implemented spe...

Страница 56: ...l SIM card hot insertion removal GPIO5 I2 S digital audio interface I2S digital audio interface I2S_RXD I2S_TXD I2S_CLK I2S_WA I2S_RXD I2S_TXD I2S_CLK I2S_WA 26 MHz clock output 26 MHz clock output fo...

Страница 57: ...rcuit description MPCI L2 series modules include the LED_WWAN active low open drain output to provide the Wireless Wide Area Network status indication as specified by the PCI Express Mini Card Electro...

Страница 58: ...ve antenna detection functionality are the following an RF antenna assembly with a built in resistor diagnostic circuit must be used an antenna detection circuit must be implemented on the application...

Страница 59: ...t versions TOBY L2 and MPCI L2 series modules provide embedded TCP IP and UDP IP protocol stack a PDP context can be configured established and handled via the data connection management packet switch...

Страница 60: ...For customers using u blox GNSS receivers TOBY L2 series cellular modules feature embedded AssistNow clients AssistNow A GPS provides better GNSS performance and faster Time To First Fix The clients c...

Страница 61: ...turn the server provides the estimated position based on the CellLocate database The u blox cellular module can either send the parameters of the visible home network cells only normal scan or the par...

Страница 62: ...er or the position estimated from CellLocate The choice depends on which positioning method provides the best and fastest solution according to the user configuration exploiting the benefit of having...

Страница 63: ...red for cellular only operation Wi Fi driver Web User Interface WebUI Connection Config Manager For more details see the Wi Fi Cellular Integration Application Note 14 1 15 13 Firmware update Over AT...

Страница 64: ...tails regarding the In band Modem solution for the European eCall and the Russian ERA GLONASS emergency call applications see the u blox eCall ERA GLONASS Application Note 19 1 15 16 SIM Access Profil...

Страница 65: ...Bluetooth Interface Bluetooth Transceiver Device including SIM Remote SIM Mobile Equipment SAP Server Bluetooth Transceiver Figure 28 Remote SIM access via Bluetooth and wired connection The applicat...

Страница 66: ...ed thresholds to identify the actual working temperature range Temperature measurement is done inside the cellular module the measured value could be different from the environmental temperature Ta Wa...

Страница 67: ...ess Shut the device down Yes No Yes Yes No No No Yes Send shutdown notification Feature enabled full logic or indication only IF Full Logic Enabled Feature disabled no action Temperature is within nor...

Страница 68: ...n power saving is enabled the module automatically enters the low power idle mode whenever possible reducing current consumption see section 1 5 1 5 TOBY L2 Data Sheet 1 and MPCI L2 Data Sheet 2 Durin...

Страница 69: ...te design is required to guarantee USB 2 0 high speed interface functionality Carefully follow the suggestions provided in the relative section 2 6 1 for schematic and layout design 4 SIM interface VS...

Страница 70: ...The switching step down regulator is the typical choice when the available primary supply source has a nominal voltage much higher e g greater than 5 V than the operating supply voltage of TOBY L2 and...

Страница 71: ...n the difference from the available supply rail to the VCC or the 3 3Vaux value is high since switching regulators provide good efficiency transforming a 12 V or greater voltage supply to the typical...

Страница 72: ...5750 15 50 V C5750X7R1H106MB TDK C2 10 nF Capacitor Ceramic X7R 0402 10 16 V GRM155R71C103KA01 Murata C3 680 pF Capacitor Ceramic X7R 0402 10 16 V GRM155R71H681KA01 Murata C4 22 pF Capacitor Ceramic C...

Страница 73: ...Ceramic X5R 1210 10 25 V GRM32ER61E226KE15 Murata 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...

Страница 74: ...e components listed in Table 16 show an example of a power supply circuit where the VCC or 3 3Vaux module supply is provided by an LDO linear regulator capable of delivering the required current with...

Страница 75: ...IZE 6 3 V 45 m T520D337M006ATE045 KEMET R1 27 k Resistor 0402 5 0 1 W RC0402JR 0727KL Yageo Phycomp R2 4 7 k Resistor 0402 5 0 1 W RC0402JR 074K7L Yageo Phycomp R3 12 k Resistor 0402 5 0 1 W RC0402JR...

Страница 76: ...for GND connection Even if all the VCC 3 3Vaux pins and all the GND pins are internally connected within the module it is recommended to properly connect all of them to supply the module to minimize...

Страница 77: ...0JA01 Murata C3 8 2 pF Capacitor Ceramic C0G 0402 5 50 V GRM1555C1H8R2DZ01 Murata C4 10 nF Capacitor Ceramic X7R 0402 10 16 V GRM155R71C103KA01 Murata C5 100 nF Capacitor Ceramic X7R 0402 10 16 V GRM1...

Страница 78: ...resistor the L6924U can monitor the battery temperature to protect the battery from operating under unsafe thermal conditions Alternatively the L6924U providing input voltage range up to 12 V can cha...

Страница 79: ...GND Power path management IC 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 38 Charger regulator with in...

Страница 80: ...L2 series 71 VCC 72 VCC 70 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 wit...

Страница 81: ...more likely to happen with switching DC DC converters in which case it is better to select the highest operating frequency for the switcher and add a large L C filter before connecting to the TOBY L2...

Страница 82: ...n during battery disconnection TOBY L2 series C1 a 3 V_BCKP R2 TOBY L2 series C2 superCap b 3 V_BCKP D3 TOBY L2 series B3 c 3 V_BCKP Figure 40 Real time clock supply V_BCKP application circuits a usin...

Страница 83: ...ceiver is disabled This enables the u blox GNSS receiver to recover from a power breakdown with either a hot start or a warm start depending on the duration of the positioning VCC outage and to mainta...

Страница 84: ...ection is required Do not apply loads which might exceed the limit for maximum available current from V_INT supply see the TOBY L2 series Data Sheet 1 as this can cause malfunctions in internal circui...

Страница 85: ...An open drain or open collector output is suitable to drive the PWR_ON input from an application processor as PWR_ON input is equipped with an internal active pull up resistor to the VCC supply as des...

Страница 86: ...ction e g EPCOS CA05P4S14THSG varistor close to accessible point An open drain output is suitable to drive the RESET_N and PERST inputs from an application processor as they are equipped with an inter...

Страница 87: ...configuration by the host application processor Guidelines for HOST_SELECT0 and HOST_SELECT1 pins circuit design will be described in detail in a successive release of the document Do not apply volta...

Страница 88: ...ternal antennas basically do not imply physical restriction to the design of the PCB where the TOBY L2 and MPCI L2 series module is mounted o The radiation performance mainly depends on the antennas I...

Страница 89: ...tennas providing 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 s...

Страница 90: ...y from 0 8 mm to 1 37 mm Select thicker cables to minimize insertion loss Cable length standard length is typically 100 mm or 200 mm custom lengths may be available on request Select shorter cables to...

Страница 91: ...L2 Copper L4 Copper FR 4 dielectric FR 4 dielectric FR 4 dielectric 380 m 500 m 500 m Figure 45 Example of 50 coplanar waveguide transmission line design for the described 4 layer board layup 35 m 35...

Страница 92: ...The transmission lines width and spacing to GND must be uniform and routed as smoothly as possible avoid abrupt changes of width and spacing to GND Add GND stitching vias around transmission lines as...

Страница 93: ...d plane of the application PCB can be reduced down to a minimum size that must be similar to one quarter of wavelength of the minimum frequency that has to be radiated As numerical example Frequency 7...

Страница 94: ...Table 26 lists some examples of possible internal off board PCB type antennas with cable and connector Manufacturer Part Number Product Name Description Taoglas FXUB63 07 0150C GSM WCDMA LTE PCB Ante...

Страница 95: ...ination antenna 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 9...

Страница 96: ...2 140 Tyco Electronics L1 L2 68 nH Multilayer Inductor 0402 SRF 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...

Страница 97: ...means 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 antenna or along the RF cable Measure...

Страница 98: ...Only 6 contacts are required and must be connected to the module SIM interface Removable SIM cards are suitable for applications requiring a change of SIM card during the product lifetime A SIM card h...

Страница 99: ...ach externally accessible SIM line close to each relative pad of the SIM connector ESD sensitivity rating of the SIM interface pins is 1 kV HBM So that according to EMC ESD requirements of the custom...

Страница 100: ...prevent RF coupling especially in case the RF antenna is placed closer than 10 30 cm from the SIM lines Limit capacitance and series resistance on each SIM signal to match the SIM requirements 27 7 ns...

Страница 101: ...line very close to each related pad of the SIM 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 very low capacitance...

Страница 102: ...plication requirements The dual SIM connection circuit described in Figure 52 can be implemented for SIM chips as well providing proper connection between SIM switch and SIM chip as described in Figur...

Страница 103: ...14 UIM_RESET RST 1RST 2RST SEL SECOND SIM CARD VPP C6 VCC C1 IO C7 CLK C3 RST C2 GND C5 J2 C6 C7 C8 C10 C9 D5 D6 D7 D8 Application Processor GPIO R1 Figure 52 Application circuit for the connection to...

Страница 104: ...oid coupling with RF line or sensitive analog inputs In the second case the same harmonics can be picked up and create self interference that can reduce the sensitivity of LTE 3G 2G receiver channels...

Страница 105: ...s of the application an additional ESD protection device with very low capacitance should be provided close to accessible point on the line connected to this pin as described in Figure 53 and Table 33...

Страница 106: ...r Route USB_D USB_D lines as short as possible Ensure the differential characteristic impedance Z0 is as close as possible to 90 Ensure the common mode characteristic impedance ZCM is as close as poss...

Страница 107: ...S DTR DSR RI DCD GND TOBY L2 series 1 8V DCE 16 TXD 13 DTR 17 RXD 14 RTS 15 CTS 10 DSR 11 RI 12 DCD GND 0 TP 0 TP 0 TP 0 TP 0 TP 0 TP 0 TP 0 TP Figure 56 UART interface application circuit with comple...

Страница 108: ...ART interface application circuit with partial V 24 link 5 wire in the DTE DCE serial communication 1 8V DTE If a 3 0 V Application Processor DTE is used then it is recommended to connect the 1 8 V UA...

Страница 109: ...mplemented as described in Figure 60 TxD Application Processor 1 8V DTE RxD RTS CTS DTR DSR RI DCD GND TOBY L2 series 1 8V DCE 16 TXD 13 DTR 17 RXD 14 RTS 15 CTS 10 DSR 11 RI 12 DCD GND 0 TP 0 TP 0 TP...

Страница 110: ...nes only is not recommended During command mode the DTE must send to the module a wake up character or a dummy AT before each command line see section 1 9 2 4 for the complete description but during d...

Страница 111: ...he voltage domain of the DDC pins which are not tolerant to higher voltage values e g 3 0 V Connect the DDC I 2 C pull ups to the V_INT 1 8 V supply source or another 1 8 V supply source enabled after...

Страница 112: ...The V_BCKP output of the cellular module is connected to the V_BCKP input pin of the GNSS receiver to provide the supply for the GNSS RTC and backup RAM when the VCC supply of the cellular module is w...

Страница 113: ...ta Sheet 1 Additional filtering may be 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 BLM...

Страница 114: ...ion circuit for a u blox 1 8 V GNSS receiver u blox GNSS 3 0 V receiver 24 GPIO3 25 GPIO4 1V8 B1 A1 GND U3 B2 A2 VCCB VCCA Unidirectional Voltage Translator C4 C5 3V0 TxD1 EXTINT0 R1 IN OUT GNSS LDO R...

Страница 115: ...cific line lengths and layout implemented In general the SDIO series resistors are not strictly required but it is recommended to slow the SDIO signal for example with 22 or 33 resistors and avoid any...

Страница 116: ...R8 470 Resistor 0402 5 0 1 W RK73B1ETTP471J KOA R9 47 k Resistor 0402 5 0 1 W RK73B1ETTD473J KOA U1 LDO Linear Regulator 3 0 V 0 3 A LT1962EMS8 3 3 Linear Technology U2 LDO Linear Regulator 1 8 V 0 3...

Страница 117: ...e codec DAC and ADC integrated in the external audio codec respectively converts an incoming digital data stream to analog audio output through a mono amplifier and converts the microphone input signa...

Страница 118: ...k Resistor 0402 5 0 1 W RC0402JR 074K7L Yageo Phycomp R3 10 k Resistor 0402 5 0 1 W RC0402JR 0710KL Yageo Phycomp R4 R5 2 2 k Resistor 0402 5 0 1 W RC0402JR 072K2L Yageo Phycomp SPK 32 Speaker Variou...

Страница 119: ...vided over GPIO1 Reference Description Part Number Manufacturer R1 10 k Resistor 0402 5 0 1 W Various manufacturers R2 47 k Resistor 0402 5 0 1 W Various manufacturers R3 820 Resistor 0402 5 0 1 W Var...

Страница 120: ...lly accessible on the application board e g if an accessible push button is directly connected to the W_DISABLE pin and it can be achieved by mounting an ESD protection e g EPCOS CA05P4S14THSG varisto...

Страница 121: ...N application circuit ESD sensitivity rating of the LED_WWAN pin is 1 kV Human Body Model according to JESD22 A114 Higher protection level could be required if the line is externally accessible and it...

Страница 122: ...s and RF circuits performance Implement proper countermeasures to avoid any possible Electro Magnetic Compatibility issue Make sure that the module RF and analog parts circuits and high speed digital...

Страница 123: ...F2 1 30 mm L 7 15 mm P2 1 25 mm G 1 10 mm M1 1 80 mm P3 2 85 mm Table 45 TOBY L2 series module suggest footprint dimensions The Non Solder Mask Defined NSMD pad type is recommended over the Solder Mas...

Страница 124: ...PCI Express Full Mini card modules Manufacturer Part Number Description JAE Electronics MM60 series 52 circuit 0 8 mm pitch PCI Express Mini card edge female connector Molex 67910 series 52 circuit 0...

Страница 125: ...ions during RF connector mating To unplug the RF cable assembly it is encouraged to use a suitable extraction tool for the RF connector such as the Hirose U FL LP N or the Hirose U FL LP V N extractio...

Страница 126: ...mechanical shells enclosure or forced air flow The increase of the thermal dissipation i e the reduction of the Module to Ambient thermal resistance will decrease the temperature of the modules inter...

Страница 127: ...ing European Norms for device ESD immunity ESD testing standard CENELEC EN 61000 4 2 22 and the radio equipment standards ETSI EN 301 489 1 23 ETSI EN 301 489 7 24 ETSI EN 301 489 24 25 which requirem...

Страница 128: ...closure port Not Applicable Test not applicable to u blox reference design because it does not provide enclosure surface The test is applicable only to equipment providing conductive enclosure surface...

Страница 129: ...ation board enclosure It is suggested to use as short as possible connection lines at SIM pins Maximum ESD sensitivity rating of SIM interface pins is 1 kV Human Body Model according to JESD22 A114 Hi...

Страница 130: ...CVCC C1 CCVPP C6 CCIO C7 CCCLK C3 CCRST C2 GND C5 47pF 47pF 100nF 59 VSIM 57 SIM_IO 56 SIM_CLK 58 SIM_RST 47pF ESD ESD ESD ESD 81 ANT1 87 ANT2 Primary cellular antenna TP TP Secondary cellular antenna...

Страница 131: ...C5 47pF 47pF 100nF 59 VSIM 57 SIM_IO 56 SIM_CLK 58 SIM_RST 47pF ESD ESD ESD ESD 81 ANT1 87 ANT2 Primary cellular antenna TP TP Secondary cellular antenna 5 V_INT TP 15pF 8 2pF 100 F 75 ANT_DET GND RT...

Страница 132: ...lular antenna 5 V_INT TP 15pF 8 2pF 100 F 75 ANT_DET GND RTC back up 26 HOST_SELECT0 62 HOST_SELECT1 SDA SCL 26 27 RSVD RSVD 6 61 GPIO6 22 GPIO2 24 GPIO3 25 GPIO4 60 GPIO5 21 GPIO1 Wi Fi enable ELLA W...

Страница 133: ...2 series Application Processor Open Drain Output 22 PERST GND GND USB 2 0 Host D D 27 USB_D 28 USB_D 68pF Primary Antenna Secondary Antenna 42 LED_WWAN 15pF 8 2pF 20 W_DISABLE Open Drain Output 24 3 3...

Страница 134: ...resistance must be limited on each SIM signal to match the SIM specifications Insert the suggested capacitors on each SIM signal and low capacitance ESD protections if accessible Check UART signals d...

Страница 135: ...es to preserve signal integrity USB_D USB_D traces should meet the characteristic impedance requirement 90 differential and 30 common mode and should not be routed close to any RF line part Keep the S...

Страница 136: ...The EPA can be a small working station or a large manufacturing area The main principle of an EPA is that there are no highly charging materials near ESD sensitive electronics all conductive materials...

Страница 137: ...d surface color Consider the IPC 7530 Guidelines for temperature profiling for mass soldering reflow and wave processes published 2001 Reflow profiles are to be selected according to the following rec...

Страница 138: ...s 3 3 3 Optical inspection After soldering the TOBY L2 series modules inspect the modules optically to verify that the module is properly aligned and centered 3 3 4 Cleaning Cleaning the modules is no...

Страница 139: ...he RF shields do not provide 100 protection for the module from coating liquids with low viscosity therefore care is required in applying the coating Conformal Coating of the module will void the warr...

Страница 140: ...t integrates TOBY L2 and MPCI L2 series modules must be approved under all the certification schemes required by the specific application device to be deployed in the market The required certification...

Страница 141: ...xcessive sound pressure from earphones and headphones can cause hearing loss No natural rubbers hygroscopic materials or materials containing asbestos are employed 4 2 2 Declaration of Conformity This...

Страница 142: ...a s used for TOBY L201 i e the combined transmission line connector cable losses and radiating element gain must not exceed 9 5 dBi LTE FDD 17 band 9 9 dBi LTE FDD 13 band 9 7 dBi LTE FDD 5 band 6 8 d...

Страница 143: ...ditions o this device may not cause interference o this device must accept any interference including interference that may cause undesired operation of the device Radio Frequency RF Exposure Informat...

Страница 144: ...ca eic site smt gst nsf fra sf08792 html IMPORTANT les fabricants d applications portables contenant les modules TOBY L2 and MPCI L2 series doivent faire certifier leur produit final et d poser direc...

Страница 145: ...ty R TTE art 3 1a o EN 60950 1 2006 A11 2009 A1 2010 A12 2011 A2 2013 o EN 62311 2008 Radiofrequency radiation exposure Information this equipment complies with radiation exposure limits prescribed fo...

Страница 146: ...llustrates typical 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 pro...

Страница 147: ...etails 5 2 1 Go No go tests for integrated devices A Go No go test is typically to compare the signal quality with a Golden Device in a location with excellent network coverage and known signal qualit...

Страница 148: ...g LTE 3G 2G 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 purpose in controlled environment...

Страница 149: ...DSP Digital Signal Processing DTE Data Terminal Equipment ECM Ethernet networking Control Model EDGE Enhanced Data rates for GSM Evolution EMC Electro Magnetic Compatibility EMI Electro Magnetic Inter...

Страница 150: ...Remote Network Driver Interface Specification RSE Radiated Spurious Emission RTC Real Time Clock SAW Surface Acoustic Wave SDIO Secure Digital Input Output SIM Subscriber Identification Module SMS Sho...

Страница 151: ..._DET SDA SIM_IO SIM_RST GPIO5 GPIO6 SDIO_D2 SDIO_CLK RSVD RSVD I2S_WA I2S_CLK I2S_RXD SDIO_D1 VCC GND SCL SIM_CLK VSIM HOST_SELECT1 RSVD I2S_TXD SDIO_D3 RI DSR RSVD V_INT VUSB_DET GND RSVD GPIO1 RSVD...

Страница 152: ...n 50 F supported by future product versions Table 49 Summary of TOBY L1 series and TOBY L2 series modules interfaces Figure 84 summarizes the LTE 3G and 2G operating frequency bands of TOBY L1 and TOB...

Страница 153: ...al pull up PWR_ON Power on Input Internal 50k pull up to VCC Pull up External Internal 21 GPIO1 GPIO 11 WWAN status indication on 00 product version GPIO1 GPIO 8 WWAN status indication on 00 and 01 pr...

Страница 154: ...14 Reserved SDIO 68 RSVD Reserved SDIO_D1 SDIO serial data 1 14 Reserved SDIO 69 GND Ground GND Ground 70 72 VCC Module Supply Input 3 40 V 4 50 V normal range No 2G current pulses No switch on apply...

Страница 155: ...PIO3 25 GPIO4 60 GPIO5 21 GPIO1 Wi Fi enable ELLA W1 series Wi Fi Module ANT1 29 ANT2 26 BPF 53 RSVD I2S_RXD 51 RSVD I2S_TXD 52 RSVD I2S_CLK 50 RSVD I2S_WA V_INT 16 RSVD TXD 17 RSVD RXD 12 RSVD DCD 14...

Страница 156: ...th org 21 GSM Association TS 09 Battery Life Measurement and Current Consumption Technique http www gsma com newsroom wp content uploads 2013 09 TS 09 v7 6 pdf 22 CENELEC EN 61000 4 2 2001 Electromagn...

Страница 157: ...d GPIOs definition and description Additional design in examples minor corrections and improvements R04 30 Sep 2014 lpah Updated FW version for Engineering Samples Additional design in and minor corre...

Страница 158: ...re Pte Ltd Phone 65 6734 3811 E mail info_ap u blox com Support support_ap u blox com Regional Office Australia Phone 61 2 8448 2016 E mail info_anz u blox com Support support_ap u blox com Regional O...

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