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DE910 Series Hardware User
Guide

1vv0300951 Rev.9 – 2015-05-11

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Содержание DE910 Series

Страница 1: ...DE910 Series Hardware User Guide 1vv0300951 Rev 9 2015 05 11...

Страница 2: ...Hardware User Guide 1vv0300951 Rev 9 2015 05 11 Reproduction forbidden without written authorization from Telit Communications S p A All Rights Reserved Page 2 of 77 APPLICABILITY TABLE PRODUCT DE910...

Страница 3: ...erve for Telit and its licensors certain exclusive rights for copyrighted material including the exclusive right to copy reproduce in any form distribute and make derivative works of the copyrighted m...

Страница 4: ...translated into any language or computer language in any form or by any means without prior written permission of Telit High Risk Materials Components units or third party products used in the product...

Страница 5: ...GA Pads Layout DE910 DUAL 19 3 1 2 LGA Pads Layout DE910 SC 20 4 Hardware Commands 21 4 1 Turning on the DE910 module 21 4 1 1 Initialization and Activation State 21 4 2 Turning off the DE910 module 2...

Страница 6: ...nna 41 6 3 3 The Design Considerations to enhanced GNSS performance 41 6 3 4 GNSS Antenna PCB Line Guidelines 44 6 3 5 GNSS Antenna Installation Guidelines 44 7 USB Port 45 8 Serial Port 46 8 1 Modem...

Страница 7: ...General 61 13 2 Module Finishing Dimensions 61 13 3 Recommended foot print for the application 62 13 4 Stencil 63 13 5 PCB Pad Design 63 13 6 Recommendations for PCB Pad Dimensions mm 63 13 7 Solder P...

Страница 8: ...ical support to report documentation errors and to order manuals contact Telit Technical Support Center TTSC at TS EMEA telit com TS NORTHAMERICA telit com TS LATINAMERICA telit com TS APAC telit com...

Страница 9: ...DE910 is the core of the interface between the module and OEM hardware Chapter 8 Serial ports Refers to the serial ports of the Telit DE910 Chapter 9 Audio Section overview Refers to the audio blocks...

Страница 10: ...y injury may occur Caution or Warning Alerts the user to important points about integrating the module If these points are not followed the module and end user equipment may fail or malfunction Tip or...

Страница 11: ...be designed Avoiding the discussed wrong solutions must be considered as mandatory While the suggested hardware configurations must not be considered mandatory the information given must be used as a...

Страница 12: ...or 1xEV DO Typical conducted sensitivity a CDMA 1xRTT Better than 108dBm 1xEV DO Better than 109dBm b GNSS Acquisition sensitivity 145dBm Navigation sensitivity 160dBm Tracking sensitivity 161dBm Cold...

Страница 13: ...Page 13 of 77 Audio PCM interface for Digital audio Message SMS MO MT Approvals Regulatory DE910 DUAL FCC IC DE910 SC CCC SRRC Carrier Verizon Sprint Aeris 2 3 RoHS Compliance As a part of Telit s cor...

Страница 14: ...1 8V R14 C125 RING O Output for Ring indicator signal RI to DTE CMOS 1 8V Asynchronous Auxiliary UART D15 TX_AUX O Auxillary UART TX Data to DTE CMOS 1 8V E15 RX_AUX I Auxillary UART RX Data from DTE...

Страница 15: ...RTC I VRTC Backup Capacitor Power R11 VAUX PWRMON O Supply Output for external accessories Power ON Monitor 1 8V Test Point C3 TP1 Test Point TP C4 TP2 Test Point TP C5 TP3 Test Point TP C6 TP4 Test P...

Страница 16: ...ound B13 GND Ground P13 GND Ground E14 GND Ground Reserved C1 Reserved Reserved D1 Reserved Reserved B2 Reserved Reserved C2 Reserved Reserved D2 Reserved Reserved B3 Reserved Reserved F3 Reserved Res...

Страница 17: ...ved K13 Reserved Reserved L13 Reserved Reserved M13 Reserved Reserved N13 Reserved Reserved A14 Reserved Reserved D14 Reserved Reserved F14 Reserved Reserved G14 Reserved Reserved H14 Reserved Reserve...

Страница 18: ...If not used should be connected to a Test Point M15 C104 RXD If not used should be connected to a Test Point L14 C105 RTS If the flow control is not used it should be connected to GND P15 C106 CTS If...

Страница 19: ...I_RX TP4 GND GND GND 6 7 RES DVI_TX TP5 RES RES GPS_LNA_E N 7 8 RES DVI_CLK GPIO_01 RES GND GND 8 9 RES DVI_WA0 GPIO_02 RES GND ANT_GPS 9 10 RES RES GPIO_03 RES GND GND 10 11 RES RES GPIO_04 RES RES V...

Страница 20: ...DVI_RX TP4 GND GND GND 6 7 RUIMRST DVI_TX TP5 RES RES GPS_LNA_E N 7 8 RES DVI_CLK GPIO_01 RES GND GND 8 9 RES DVI_WA0 GPIO_02 RES GND ANT_GPS 9 10 RES RES GPIO_03 RES GND GND 10 11 RES RES GPIO_04 RES...

Страница 21: ...om the ON_OFF pad is 0 1 mA A simple circuit to power on the module is illustrated below 4 1 1 Initialization and Activation State Upon turning on DE910 module the DE910 module is not active yet becau...

Страница 22: ...up internally Using a pull up resistor may bring latch up problems on the DE910 power regulator and improper power on off of the module The line ON_OFF must be connected only in open collector configu...

Страница 23: ...tware User Guide By hardware shutdown When the device is shut down by software command or by hardware shutdown it issues a detach request to the network that informs the network that the device will n...

Страница 24: ...nd and DTE should monitor the status of PWRMON to see the actual power off TIP To check if the device has powered off hardware line PWRMON must be monitored When PWRMON goes low the device has powered...

Страница 25: ...e that the device gets stuck waiting for some network 4 3 1 Hardware Unconditional Shutdown To unconditionally shutdown the DE910 the pad HW_SHUTDOWN must be tied low for at least 200 milliseconds and...

Страница 26: ...orization from Telit Communications S p A All Rights Reserved Page 26 of 77 For example To drive the HW_SHUTDOWN pad with a totem pole output of a 3 5 V microcontroller uP_OUT2 4 4 Summary of Turning...

Страница 27: ...r design 5 1 Power Supply Requirements The external power supply must be connected to VBATT VBATT_PA signals and must fulfill the following requirements Power Supply Nominal Supply Voltage 3 8V Normal...

Страница 28: ...S off 2 5 2 Full functionality with power saving Module registered on the network can receive incoming call sand SMS GPS on 65 Tx and Rx mode A call in progress Antenna Diversity off GPS off 670 CDMA...

Страница 29: ...cally PC internal regulator output 12V input typically automotive Battery 5 2 2 5V Input Source Power Supply Design Guidelines The desired output for the power supply is 3 8V hence there is not a big...

Страница 30: ...e regulator to respond quickly to the current peaks absorption In any case the frequency and switching design selection is related to the application to be developed due to the fact the switching freq...

Страница 31: ...ge can rise over the absolute maximum voltage for the DE910 and cause damage USE only Li Ion battery types A bypass low usually a 100uF tantalum ESR capacitor with adequate capacity must be provided i...

Страница 32: ...he power supply chip is placed can be enough to ensure a good thermal condition and avoid overheating The heat generated by the DE910 must be taken into consideration during transmission at 24 4dBm ma...

Страница 33: ...tage drops occur when the 1A current peaks are absorbed This is a must for the same above mentioned reasons Try to keep this trace as short as possible The PCB traces connecting the switching output t...

Страница 34: ...DE910 Series Hardware User Guide 1vv0300951 Rev 9 2015 05 11 Reproduction forbidden without written authorization from Telit Communications S p A All Rights Reserved Page 34 of 77...

Страница 35: ...na Requirements Frequency range Depending on the frequency band s provided by the network operator the customer must use the most suitable antenna for that those band s Bandwidth 70 MHz in CDMA BC0 14...

Страница 36: ...antenna PCB line Guidelines Make sure that the transmission line s characteristic impedance is 50ohm Keep line on the PCB as short as possible since the antenna line loss shall be less than around 0...

Страница 37: ...owing chapter 6 1 2 1 1 1 Transmission line design During the design of the DE910 interface board the placement of components has been chosen properly in order to keep the line length as short as poss...

Страница 38: ...ssion A calibrated coaxial cable has been soldered at the pad corresponding to RF output a SMA connector has been soldered to the board in order to characterize the losses of the transmission line inc...

Страница 39: ...covered by the CDMA signal If the device antenna in the application is located greater then 20cm from the human body and there are no co located transmitters then the Telit FCC IC approvals can be re...

Страница 40: ...Bandwidth 70 MHz in CDMA BC0 140 MHz in CDMA BC1 Impedance 50 Ohm When using the Telit DE910 since there s no antenna connector on the module the antenna must be connected to the DE910 antenna pad F1...

Страница 41: ...nd Patch GNSS Antenna Using this type of antenna introduces at least 3dB of loss if compared to a circularly polarized CP antenna Having a spherical gain response instead of a hemispherical gain respo...

Страница 42: ...nts Source and Load Impedance 50Ohm Insertion Loss 1575 42 1576 42MHz 1 4dB Max Insertion Loss 1565 42 1585 42MHz 2 0dB Max Insertion Loss 1597 5515 1605 886MHZ 2 0dB Max The external active antenna f...

Страница 43: ...enna pad of the DE910 then a PCB line is required This line of transmission shall fulfill the following requirements Antenna Line on PCB Requirements Characteristic Impedance 50Ohm Max Attenuation 0 3...

Страница 44: ...way from the DE910 power supply lines If EM noisy devices are around the PCB hosting the DE910 such as fast switching ICs take care of shielding of antenna line by burying it inside the layers of PCB...

Страница 45: ...ow describes the USB interface signals Pin Signal I O Function Type B15 USB_D I O USB differential Data C15 USB_D I O USB differential Data A13 VBUS I Power sense for the internal USB transceiver 5V T...

Страница 46: ...roller UART 1 8V Universal Asynchronous Receiver Transmit Microcontroller UART 5V or other voltages different from 1 8V Depending on the type of serial port on the OEM hardware a level translator circ...

Страница 47: ...a Set Ready 1 8V L14 RTS I Request to Send 1 8V P15 CTS O Clear to Send 1 8V R14 RI O Ring Indicator 1 8V The following table shows the typical input value pulled inside the baseband chipset and statu...

Страница 48: ...e to protect DE910 or customer specific requirements from ESD event to UART port M15 N15 P15 and L14 8 2 Modem Serial Port 2 Serial port 2 on the DE910 is a 1 8V UART with only the RX and TX signals T...

Страница 49: ...There are a multitude of them differing in the number of drivers and receivers and in the levels be sure to get a true RS232 level translator not a RS485 or other standards By convention the driver i...

Страница 50: ...300951 Rev 9 2015 05 11 Reproduction forbidden without written authorization from Telit Communications S p A All Rights Reserved Page 50 of 77 The RS232 serial port lines are usually connected to a DB...

Страница 51: ...log Audio it is necessary to add a dedicated CODEC on the Application design For further information please refer to the Digital Voice Interface Application Note 9 1 Electrical Characteristics The pro...

Страница 52: ...he value of the pad or queried An alternate function pad is internally controlled by the DE910 firmware and acts depending on the function implemented The following GPIOs are available on the DE910 Pi...

Страница 53: ...0 3V 2 3V Operating Range Interface levels 1 8V CMOS Parameter Min Max Input high level 1 5V 2 1V Input low level 0 0V 0 35V Output high level 1 35V 1 8V Output low level 0 0V 0 45V Current character...

Страница 54: ...g an ON OFF transition 10 3 Using a GPIO Pad as Output The GPIO pads when used as outputs can drive 1 8V CMOS digital devices or compatible hardware When set as outputs the pads have a push pull outpu...

Страница 55: ...on the network service availability and Call status In the DE910 modules the STAT_LED usually needs an external transistor to drive an external LED Because of the above the status indicated in the fo...

Страница 56: ...e related application note xE910 RTC Backup Application Note VRTC also supplies reference power to help DE910 check the time from SMPL Sudden Momentary Power Loss So it is recommended as best practice...

Страница 57: ...tput A regulated power supply output is provided in order to supply small devices from the module This output is active when the module is ON and goes OFF when the module is shut down The operating ra...

Страница 58: ...oltage range filtered 0 1 8 Volt Range 0 1023 Steps The precision is 1023 steps so since the maximum voltage is 2V the integrated voltage could be calculated with the following formula Integrated outp...

Страница 59: ...on the ADC pin input and store and convert it into 8 bit word Parameter Min Max Units Input Voltage range 0 1 2 Volt AD conversion 8 bits Resolution 10 mV Input Resistance 1 Mohm The DE910 provides o...

Страница 60: ...ons S p A All Rights Reserved Page 60 of 77 12 Test Point These pins are needed in order to analyze DE910 on the application board The signals of the DE910 are PAD Signal I O Function Type C3 TP1 Test...

Страница 61: ...ten authorization from Telit Communications S p A All Rights Reserved Page 61 of 77 13 Mounting the Module on your Board 13 1 General The DE910 has been designed in order to be compliant with a standa...

Страница 62: ...on 144 pins Top View In order to easily rework the DE910 it is suggested to consider having a 1 5 mm placement inhibit area around the module on the application It is also suggested as a common rule f...

Страница 63: ...the same as the recommended footprint 1 1 we suggest a thickness of stencil foil 120 m 13 5 PCB Pad Design Non solder mask defined NSMD type is recommended for the solder pads on the PCB PCB 13 6 Rec...

Страница 64: ...ecommendations for PCB Pad Surfaces Finish Layer thickness um Properties Electro less Ni Immersion Au 3 7 0 05 0 15 good solder ability protection high shear force values The PCB must be able to resis...

Страница 65: ...using only no clean solder paste in order to avoid the cleaning of the modules after assembly 13 7 1 Solder Reflow The following is the recommended solder reflow profile Profile Feature Pb Free Assem...

Страница 66: ...erved Page 66 of 77 Profile Feature Pb Free Assembly Peak Temperature TP 245 0 5 Time within 5 of actual Peak Temperature tP 10 30 seconds Ramp down Rate 6 second max Time 25 to Peak Temperature 8 min...

Страница 67: ...ten authorization from Telit Communications S p A All Rights Reserved Page 67 of 77 14 Packing System The DE910 modules are packaged on trays of 20 pieces each These trays can be used in SMT processes...

Страница 68: ...DE910 Series Hardware User Guide 1vv0300951 Rev 9 2015 05 11 Reproduction forbidden without written authorization from Telit Communications S p A All Rights Reserved Page 68 of 77...

Страница 69: ...Reproduction forbidden without written authorization from Telit Communications S p A All Rights Reserved Page 69 of 77 14 2 Reel The DE910 can be packaged on reels of 200 pieces each See figure for mo...

Страница 70: ...s Hardware User Guide 1vv0300951 Rev 9 2015 05 11 Reproduction forbidden without written authorization from Telit Communications S p A All Rights Reserved Page 70 of 77 14 2 2 Reel Detail 14 2 3 Packa...

Страница 71: ...ponents Moreover the customer has to take care of the following conditions a Calculated shelf life in sealed bag 12 months at 40 C and 90 relative humidity RH b Environmental condition during the prod...

Страница 72: ...upgrade the Telit s software and debug DE910 when DE910 is already mounted on a host system Users who use both of UART and USB interfaces to communicate DE910 Must implement a download method in a hos...

Страница 73: ...ent comme sp cifi dans ce manuel pour r pondre aux normes d exposition aux ondes rf Use of this device in a manner inconsistent with this manual could lead to excessive RF exposure conditions L utilis...

Страница 74: ...ditions de fonctionnement de l metteur doivent tre remis aux utilisateurs et aux installateurs conform ment la r glementation sur l exposition aux ondes rf Des fabricants des dispositifs mobiles fixes...

Страница 75: ...tted for an individual component The OEM integrator must demonstrate that the final host product is compliant with all transmitters operating simultaneously if applicable Ce module est pas certifi pou...

Страница 76: ...of the product The product has to be supplied with a stabilized voltage source and the wiring has to conform to the security and fire prevention regulations The product has to be handled with care av...

Страница 77: ...GA Pads Layout 5 1 Power Supply Requirements 8 1 Modem Serial Port1 14 1 Download and Debug Port 4 2013 04 08 3 DE910 Module Connections 3 1 Pin Out 5 1 Power Supply Requirements 8 1 Modem Serial Port...

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