u blox San Diego LISAC200A CDMA 1xRTT Cellular Module User Manual

u-blox San Diego, Inc. CDMA 1xRTT Cellular Module Users Manual

Contents

Users Manual

locate, communicate, accelerate  LISA-C200 & FW75-C200 CDMA 1xRTT Wireless Modules System Integration Manual Abstract This  document describes  the features  and  the  integration of u-blox LISA-C200  and FW75-C200  CDMA2000 1xRTT wireless modules. These modules are complete and cost efficient CDMA solutions offering 153 kb/s data speed  dual-band 800/1900 MHz data transmission technology in compact form factors. www.u-blox.com
LISA-C200&FW75-C200-System IntegrationManualCDMA-2X-11004-3 Page2of43Document Information Title LISA-C200 & FW75-C200 Subtitle  CDMA 1xRTT Wireless Modules Document type  System Integration Manual Document number  CDMA-2X-11004-3 Document status Preliminary Document status information Objective Specification Advance Information This document contains target values. Revised and supplementary data will be published later. This document contains data based on early testing. Revised and supplementary data will be published later. Preliminary This document contains data from product verification. Revised and supplementary data may be published later. Released  This document contains the final product specification. This document applies to the following products: Name Type number Firmware version PCN / IN LISA-C200 LISA-C200-01S E0.S.03.00.10R UBX-TN-12041 LISA-C200 LISA-C200-21S E0.V.03.00.02R UBX-TN-12041 FW75-C200 FW-C200-01S E0.S.03.00.10R UBX-TN-12041 FW75-C200 FW-C200-21S E0.V.03.00.02R UBX-TN-12041 This document and the use of any information contained therein, is subject to the acceptance of the u-blox terms and conditions. They can be downloaded from www.u-blox.com. u-blox makes no warranties based on the accuracy or completeness of the contents of this document and reserves the right to mak e changes to specifications and product descriptions at any time without  notice. u-blox reserves all rights to this document and the information contained herein. Reproduction, use or disclosure to third parties without express permission  is strictly prohibited. Copyright ©  2012, u-blox AG. u-blox®  is a registered trademark of  u-blox Holding AG in the EU and other countries.
LISA-C200&FW75-C200-System IntegrationManualCDMA-2X-11004-3 PreliminaryPrefacePage 3 of 43Preface u-blox Technical Documentation As  part   of   our   commitment  to   customer support,   u-blox  maintains  an  extensive volume  of   technical documentation for  our products. In addition to our product-specific technical data sheets, the following manuals are available to assist u-blox customers in product design and development. AT Commands  Manual:  This  document provides  the description  of  the supported  AT  commands  by  the LISA-C200 & FW75-C200 module to verify all implemented functionalities. System Integration  Manual: This Manual provides hardware design instructions and information on how to set up production and final product tests. Application Note: document provides  general design  instructions  and information  that applies to all u-blox Wireless modules. See Section  Related documents  for  a list of Application Notes related to  your Wireless Module. How to use this Manual The LISA-C200  & FW75-C200  System  Integration  Manual provides  the necessary information to successfully design in and configure these u-blox wireless modules. This manual  has a modular structure. It is not necessary to read it from the beginning to the end. The following symbols are used to highlight important information within the manual:             An index finger points out key information pertaining to module integration and performance.           A warning symbol indicates actions that could negatively impact or damage the module. Questions. If you have any questions about u-blox Wireless Integration, please:     Read this manual carefully.     Contact our information service on the homepage  http://www.u-blox.com     Read the questions and answers on our FAQ database on the homepage  http://www.u-blox.com Technical Support Worldwide Web Our website (www.u-blox.com) is a rich pool of information. Product  information,  technical documents and helpful FAQ can be accessed 24h a day. By E-mail Contact the nearest  Technical Support  office  by email. Use our service pool email addresses rather than any personal email address of our staff. This makes  sure that your request is processed  as soon as possible.  You will find the contact details at the end of the document. Helpful Information when Contacting Technical Support When contacting Technical Support please have the following information ready:     Module type (e.g. LISA-C200) and firmware version     Module configuration     Clear description of your question or the problem     A short description of the application Your complete contact details
LISA-C200&FW75-C200-System IntegrationManualCDMA-2X-11004-3 PreliminaryContentsPage 4 of 43Contents Preface ................................................................................................................................3 Contents..............................................................................................................................4 1 System description .......................................................................................................6 1.1 Overview .............................................................................................................................................. 6 1.2 Architecture..........................................................................................................................................  7 1.2.1 Functional blocks........................................................................................................................... 7 1.3 Pin description ...................................................................................................................................... 8 1.4 Power management ........................................................................................................................... 10 1.4.1 Power supply circuit overview ...................................................................................................... 10 1.4.2 Module supply (VCC) .................................................................................................................. 11 1.4.3 Current consumption profiles ...................................................................................................... 17 1.5 System functions ................................................................................................................................ 18 1.5.1 Module power on ....................................................................................................................... 18 1.5.2 Module power off ....................................................................................................................... 20 1.5.3 Module reset ............................................................................................................................... 20 1.6 RF connection ..................................................................................................................................... 20 1.7 Serial communication ......................................................................................................................... 21 1.7.1 Serial interfaces configuration ..................................................................................................... 21 1.7.2 Asynchronous serial interface (UART)........................................................................................... 22 1.7.3 USB interface............................................................................................................................... 24 1.7.4 MUX Protocol (3GPP 27.010) ...................................................................................................... 25 1.8 Reserved pins (RSVD) .......................................................................................................................... 25 1.9 Schematic for LISA-C200 and FW75-C200 modules integration ......................................................... 26 1.10 Approvals........................................................................................................................................ 27 1.10.1 Declaration of Conformity for products marked with the FCC logo - United States only .............. 27 1.10.2 Modifications .............................................................................................................................. 27 2 Design-In .....................................................................................................................28 2.1 Design-in checklist .............................................................................................................................. 28 2.1.1 Schematic checklist ..................................................................................................................... 28 2.1.2 Antenna checklist ........................................................................................................................ 28 2.2 Connectors (FW75) ............................................................................................................................. 29 2.2.1 FW75-C200 modem connector ................................................................................................... 29 2.2.2 FW75-C200 Board to Board host connector ................................................................................ 29 2.2.3 FW75-C200 RF antenna connector.............................................................................................. 30 2.3 Design Guidelines ............................................................................................................................... 31 2.3.1 Layout guidelines per pin function ............................................................................................... 31 2.4 Antenna guidelines ............................................................................................................................. 32 2.4.1 Antenna termination ................................................................................................................... 33
LISA-C200&FW75-C200-System IntegrationManualCDMA-2X-11004-3 PreliminaryContentsPage 5 of 432.4.2 Antenna radiation .......................................................................................................................  34 2.5 ESD immunity test precautions ........................................................................................................... 35 2.5.1 General precautions .................................................................................................................... 36 2.5.2 Antenna interface precautions..................................................................................................... 37 2.5.3 Module interfaces precautions..................................................................................................... 38 3 Features description...................................................................................................39 3.1 Firmware (upgrade) Over The Air (FOTA.............................................................................................. 39 3.2 UDP/IP ................................................................................................................................................ 39 3.3 HTTP................................................................................................................................................... 39 Appendix ..........................................................................................................................40 A Glossary ......................................................................................................................40 Related documents...........................................................................................................42 Revision history ................................................................................................................42 Contact .............................................................................................................................. 43
LISA-C200&FW75-C200-System IntegrationManualCDMA-2X-11004-3 PreliminarySystem descriptionPage 6 of 43 1 System description 1.1  Overview u-blox C200 wireless modules integrate a complete CDMA 1xRTT 153 kb/s packet data modem into a single module solution. These modems  are certified to  operate on US CDMA carriers. In addition they can operate on carriers requiring a SIM data card interface. 3G CDMA 2000 1xRTT Characteristics CDMA Terrestrial Radio Access Frequency Division Duplex (FDD) operating mode Dual-band support: Band Class 0 – US Cellular Band Class 1 – US PCS CDMA Packet Switched  data up to 153 kb/s DL/UL Table 1: 3G CDMA 2000 1xRTT characteristics These modems are US CDMA certified to support 1xRTT data speeds on US CDMA carriers Sprint and Verizon. FW75-C200   is strictly a data modem for embedded solutions while LISA-C200 also supports audio (analog and digital) functionality. Data communication is through 2 data interfaces; 5 wires UART and Full Speed USB. The interfaces are intended to support a vast quantity of AT commands  that will enable easy adoption to existing host application processors. Power on is initiated by HW logic and Power down by HW logic and SW control. LISA-C200 antenna interface is provided through a 50 ohm pad while FW75-C200 uses the  popular “U.FL” RF connector. Other key components  are the extensive SW AT commands meeting the needs of :     Carrier AT commands     Industry standard AT command both 3GPP and 3GPP2 u-blox AT Commands
LISA-C200&FW75-C200-System IntegrationManualCDMA-2X-11004-3 PreliminarySystem descriptionPage 7 of 43 1.2  Architecture ANT Diplexer Digital and analog voice (**) 3G PA RF Transceiver UART 3G PA LNA SAW Filter 19.2 MHz 32.768 kHz Wireless Base-band Processor USB GPIOs (**) Vcc (Supply) LNA Memory Power On V_INT (I/O) Power Management Unit HW shutdown (*) HW Reset (**) (*): FW75 (**): LISA-C200 Figure 1: Block diagram 1.2.1  Functional blocks LISA-C200  &  FW75-C200  modules  consist  of   the  following   internal  functional  blocks:  RF   front-end,  RF transceiver, Baseband section and Power Management Unit. RF Front-End The Antenna connector is directly connected to  the Diplexer which separates the 800 and 1900 MHZ bands. Each 800 & 1900 MHz RF chain are connected to  their respective transceiver paths via duplexers   as shown in prior block diagram. Each duplexer  provides the filtering and Rx/Tx path separation before connecting to the LNA and RF PA devices. A separate shield compartment houses the 800 MHZ and 1900 MHZ   RF power amplifiers. This compartment provides high Tx signal isolation, preventing de-sensing of the Rx frontend circuitry. RF Transceiver The transceiver includes the following key components:     Dual-band 800 & 1900 MHz CDMA transceiver, excluding the RF Power Amplifiers, duplexers and diplexer.     19.2 MHz Crystal Oscillator While operating, the RF  transceiver  performs direct up-conversion  and down-conversion  of  the baseband I/Q signals, with the RF voltage controlled gain amplifier being used to set the uplink TX power. In the downlink path, the internal LNA enhances the RX sensitivity. An internal automatic gain control amplifier optimizes the signal levels before delivering to the analog I/Q to baseband for further digital processing.
LISA-C200&FW75-C200-System IntegrationManualCDMA-2X-11004-3 PreliminarySystem descriptionPage 8 of 43 In all the modes, Tx & Rx RF synthesizers  are an on-chip voltage controlled oscillator are used to generate the local oscillator signal. The frequency reference to RF synthesizers  are provided by a free running 19.2 MHz XO. The Rx path locks and tracks to the base station carrier. An learning algorithm is implemented  to capture the temperature characteristic of the xtal, comparing the XO and carrier frequencies, while measuring the thermistor in close proximity to the crystal oscillator.  A  lookup table is saved  over temperature and time. The known frequency difference of the free running crystal oscillator is corrected  in the baseband processor enabling quick acquisition. Baseband section and power management unit Another shielding  section  includes  all the digital circuitry and the power supplies,  basically  the following functional blocks:     Wireless baseband processor, a mixed signal ASIC which integrates:     Microprocessor for controller functions, CDMA upper layer software     ARM9 coprocessor and HW accelerator for CDMA Layer 1 control software and routines     Dedicated HW for peripherals control, as UART,  USB, etc     Memory system in a Multi-Chip Package (MCP) integrating two devices:     NOR flash non-volatile memory     DDR SRAM volatile memory     Power Management Unit (PMU), used to derive all the system supply voltages from the module supply VCC 1.3  Pin description Table 2 provides a summary of the module pin names and descriptions.             For the exact specification including pin numbering and additional information see the LISA-C200 Data Sheet [1] or the FW75-C200 Data Sheet [2]. Name Module Power domain I/O Description Remarks VCC All VCC - Module supply  Module supply input V_INT FW75-C200 - O Digital I/O Interfaces supply V_INT = 2.85V (typical) generated by the module outputwhen it isswitched-on and the RESET_N(externalresetinput pin) is not forced to the low level.V_INT = 1.8V (typical)  generated by the  module LISA-C200 - O Digital I/O Interfaces supply output when it isswitched-on and the RESET_N(externalreset input pin) is not forced to the low level. PWR_ON All POS I Power-on input PWR_ON pin has Internal pull-up  resistor. GPIO1..10 LISA-C200 GDI I/O GPIO GPIO6..10 Reserved. RESET_N LISA-C200 ERS I External reset input RESET_N pin has Internal pull-up resistor. HW_SHUTDOWN FW75-C200 ERS I External Shutdown input HW_SHUTDOWN pin has Internal pull-up resistor. ANT All ANT - I/O RF antenna STATUS FW75-C200 GDI O LED Indicator Indicated by buffered External LED : Off – Not Powered On – Powered, associated, and authenticated but not transmitting or receiving. Slow  Blink but not associated  or  authenticated; searching. Intermittent Blink - activity proportional to transmitting/receiving speed. For voice applications, turning  off  and  on  the intermittent blink based on the ring pulse cycle can indicate a ring event.
LISA-C200&FW75-C200-System IntegrationManualCDMA-2X-11004-3 PreliminarySystem descriptionPage 9 of 43 Name Module  Power domain I/O  Description  Remarks RI CTS RTS LISA-C200 FW75-C200 LISA-C200 FW75-C200 LISA-C200 FW75-C200 GDI  O UART ring indicator  Circuit 125 (RI) in ITU-T V.24. Value at internal reset: T/PU. Use to wake up host processor. The output signal is active low. Internal active pull-up to 1.8 V. Internal active pull-up to 2.85 V GDI  O UART clear to send  Circuit 106 (CTS) in ITU-T V.24. Internal active pull-up to 1.8 V. Internal active pull-up to 2.85 V. GDI  I UART ready to send  Circuit 105 (RTS) in ITU-T V.24. Internal passive pull-up to 1.8 V. Internal passive pull-up to 2.85 V. GDI  O UART received data Circuit 104 (RxD) in ITU-T V.24. RXD  LISA-C200 FW75-C200 TXD  LISA-C200 FW75-C200 Internal active pull-up to 1.8 V. Internal active pull-up to 2.85 V. GDI  I UART transmitted data  Circuit 103 (TxD) in ITU-T V.24. Internal passive pull-up to 1.8 V. Internal passive pull-up to 2.85 V. VUSB_DET  All USB  I USB detect input   Input for VBUS (5 V typical) USB supply sense. USB_D-  All USB  I/O USB Data Line D- 90  nominal differential impedance. Pull-up or pull-down resistors and external series resistors   as required by the USB  2.0 high-speed specification [9] are part of the USB  pad driver and need not be provided externally. USB_D+  All USB  I/O USB Data Line D+ 90  nominal differential impedance. Pull-up or pull-down resistors and external series resistors   as required by the USB  2.0 high-speed specification [9] are part of the USB  pad driver and need not be provided externally. MIC_N LISA-C200  AUDIO I Differential analog audio input (negative) MIC_P LISA-C200  AUDIO I Differential analog audio input (positive) SPK_P LISA-C200  AUDIO O  Differential analog audio output (positive) SPK_N LISA-C200  AUDIO O  Differential analog audio output (negative) Differential analog microphone input. Internal DC blocking 0.1 µF capacitor. Differential analog microphone input. Internal DC blocking 0.1 µF capacitor. Differential  analog audio  output  shared for  all path modes:  earpiece, headset and  loudspeaker mode. Differential  analog audio  output  shared for  all path modes:  earpiece, headset and  loudspeaker mode. PCM_SYNC LISA-C200  GDI  O Digital Sync  Digital Audio Sync pulse. PCM_DO LISA-C200  GDI  O Data Output   Digital Audio Output. PCM_CLK  LISA-C200  GDI  O Clock Output   Digital Audio Clock Output. PCM_DI LISA-C200  GDI  I Data Input  Digital Audio Input. SCL LISA-C200  DDC O I2C bus clock line Fixed open drain. No internal pull-up. Value at internal reset: T. SDA LISA-C200  DDC I/O I2C bus data line Fixed open drain. No internal pull-up.            Value at internal reset: T.    SIM_CLK All SIM O SIM clock Value at internal reset: L. SIM_IO  All SIM  I/O SIM data Internal 4.7 k pull-up resistor to VSIM. Value at internal reset: L/PD. SIM_RST All SIM  O SIM reset Value at internal reset: L. VSIM  ALL - O SIM supply output   1.80 V typical or 2.90 V typical generated by the module according to the SIM card type. SIM_GND FW75-C200 SIM  O SIM GROUND RSVD All RSVD - RESERVED pin Unless otherwise specified, leave unconnected. GND All GND - Ground  All GND pads must be connected to ground. Table 2: Pin description summary
LISA-C200&FW75-C200-System IntegrationManualCDMA-2X-11004-3 PreliminarySystem descriptionPage 10 of 431.4  Power management 1.4.1  Power supply circuit overview LISA-C200 & FW75-C200 modules feature a power management concept optimized for  the most efficient use of supplied power. This is achieved  by hardware design utilizing a power efficient circuit topology (Figure 2), and by power management software controlling the module’s power saving mode. 2 x 3G Power Amplifier(s) u-blox C200 Memory NOR Flash RF Transceiver DDR SRAM Linear LDO Linear LDO EBU VCC VCC VCC 42 µF Switching Step-Down Switching Step-Down Linear LDO Linear LDO I/O CORE Analog SIM Linear LDO RTC Power Management Unit Baseband Processor V_INT VSIM 4.7 µF  2.2 µF Figure 2: Power management simplified block diagram Pins with supply function are reported in Table 3. LISA-C200  & FW75-C200 modules  must be supplied  via the  VCC pins.  There  is only one main power supply input, available on the three1 or five2 VCC pins that must be all connected to the external power supply 1 LISA-C200.
LISA-C200&FW75-C200-System IntegrationManualCDMA-2X-11004-3 PreliminarySystem descriptionPage 11 of 43The VCC pins are directly connected to the RF power amplifiers and to the integrated Power Management Unit (PMU) within the module: all supply  voltages  needed by the  module are generated from  the  VCC supply  by integrated voltage regulators. When a 1.8 V or a 3 V SIM card type is connected,  LISA-C200 & FW75-C200 modules automatically supply the SIM card via the VSIM pin. Activation and deactivation of the SIM interface with automatic voltage switch from 1.8 to 3 V is implemented,  in accordance to the ISO-IEC 7816-3 specifications. The 2.8 voltage domain used internally also available on the V_INT pin, to allow more economical and efficient integration of the LISA-C200 & FW75-C200 modules in the final application. The integrated Power Management Unit also provides the control state machine for system start up and system shut down control. 1.4.2   Module supply (VCC) LISA-C200 & FW75-C200 modules must be supplied through the VCC pins by a DC power supply. Voltages must be stable: during operation, the current drawn from VCC can vary by some orders of magnitude. Name Description Remarks VCC Module power supply input VCC pins are internally connected, but all the available pads or pins must be connected to the external supply in order to minimize the power loss due to series resistance. Clean and stable supply is required: low  ripple and low voltage drop must be guaranteed.  Voltage provided must always be above the minimum limit of the operating range. GND Ground  GND pins are internally connected but a good (low impedance) external ground can improve RF performance: all available pads or pins must be connected to ground. Table 3: Module supply pins             Higher  ESD protection level can be required if VCC is externally  accessible on the application board. Higher protection level can be achieved by mounting an ESD protection (e.g. EPCOS CA05P4S14THSG varistor array) on the line connected to this pin.             The voltage provided to the VCC pins must be within the normal operating range limits as specified in the LISA-C200 Data Sheet [1] or FW75-C200 Data Sheet [2]. Complete functionality of the module is only guaranteed within the specified minimum and maximum VCC voltage operating range.             Ensure that the input voltage at the VCC pins never drops below the minimum limit of the operating range when the module is switched on.            Operation  above  the  operating  range  maximum  limit  is  not  recommended and  extended exposure beyond it may affect device reliability.            Stress beyond the VCC absolute maximum ratings can cause permanent damage to the module: if necessary, voltage spikes beyond VCC absolute maximum ratings must be restricted to values within the specified limits by using appropriate protection.             When designing  the  power supply  for  the  application, pay specific  attention  to  power losses  and transients. The DC power supply must be able to  provide a voltage profile to the  VCC pins with the following characteristics:     Voltage drop during transmission must be lower than 250 mV 2 FW75-C200.
LISA-C200&FW75-C200-System IntegrationManualCDMA-2X-11004-3 PreliminarySystem descriptionPage 12 of 43Any degradation in power supply performance (due to losses, noise or transients) will directly affect the RF  performance of  the  module since the single external DC power source indirectly supplies all the digital and analog interfaces, and also directly  supplies the RF power amplifier (PA). 1.4.2.1 VCC application circuits LISA-C200 & FW75-C200 modules must be supplied through the VCC pins by one (and only one) proper DC power supply that  must be one of  the following:     Switching regulator     Low Drop-Out (LDO) linear regulator     Rechargeable Li-Ion battery Primary (disposable) battery Main Supply Available? No, portable device  Battery Li-Ion 3.7 V Yes, always available Main Supply Voltage >5 V? No, less than 5 V Yes, greater than 5 V Linear LDO Regulator Switching Step-Down Regulator Figure 3: VCC supply concept selection 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 LISA-C200  &  FW75-C200 modules  operating supply voltage. The use of switching  step-down  provides  the best  power  efficiency for  the  overall application and minimizes current drawn from the main supply source. The use of  an LDO linear regulator becomes convenient  for a primary supply with a relatively low voltage (e.g. less than 5 V). In this  case the typical 90%  efficiency of the switching  regulator will diminish  the  benefit of voltage step-down and no true advantage will be gained in input current savings. On the opposite side, linear regulators are not recommended for high voltage step-down  as they will dissipate  a considerable amount of energy in thermal power. If LISA-C200 & FW75-C200 modules are deployed in a mobile unit where no permanent primary supply source is available, then a battery will be required to provide VCC. A standard  3-cell Lithium-Ion  battery pack directly connected to  VCC is  the  usual choice for  battery-powered devices.  During charging, batteries  with  Ni-MH chemistry typically reach a maximum voltage that is above the maximum rating for VCC, and should therefore be avoided. The use of primary (not rechargeable) battery is uncommon, since the most cells available are seldom capable of delivering the peak current due to  high internal resistance. Keep in mind that the use of batteries requires the implementation of a suitable charger circuit (not included in LISA-C200 & FW75-C200 modules). The charger circuit should be designed in order to prevent over-voltage on VCC beyond the upper limit of the absolute maximum rating. The following sections highlight some design aspects for each of the supplies listed above.
LISA-C200&FW75-C200-System IntegrationManualCDMA-2X-11004-3 PreliminarySystem descriptionPage 13 of 43Switching regulator The characteristics of the switching regulator connected to VCC pins should meet the following requirements:     Power capability: the switching regulator with its output circuit must be capable of providing a voltage value to the VCC pins within  the specified operating range and must be capable of delivering greater than 1.2 Amps for safe design margin     Low output ripple: the switching regulator together with its output circuit must be capable of providing a clean (low  noise) VCC voltage profile     High switching frequency: for best performance and for smaller applications select a switching frequency  600 kHz (since L-C output filter is typically smaller for high switching frequency). The use of  a switching regulator with  a variable switching frequency or with  a switching frequency lower than 600 kHz must be carefully evaluated since this can produce noise in the VCC voltage profile. An  additional L-C low-pass filter between the switching regulator output to VCC supply pins can mitigate the ripple on VCC, but adds extra voltage drop due to resistive losses on series inductors     PWM mode operation: select preferably regulators with Pulse Width Modulation (PWM) mode. While in active mode Pulse Frequency  Modulation (PFM) mode and PFM/PWM mode transitions must be avoided to reduce the noise on the VCC voltage profile. Switching regulators able to switch between low ripple PWM mode and high efficiency burst or PFM mode can be used, provided the  mode transition from  idle mode (current consumption approximately 2 mA) to active mode (current consumption approximately 100 mA): it is  permissible   to use a regulator that switches  from  the PWM  mode to  the burst  or PFM  mode at an appropriate current threshold (e.g. 60 mA)     Output voltage slope: ( not necessary for CDMA solution, ok to delete-RJC) the use of the soft start function provided by some voltage regulator must be carefully evaluated, since the voltage at the VCC pins must ramp from 2.5 V to 3.2 V within 1 ms to allow a proper switch-on of the module Figure 4 and the components listed in Table 4 show an example of a high reliability power supply circuit, where the module VCC is supplied by a step-down switching regulator capable of delivering 2.5 A current pulses with low output ripple and with fixed switching frequency in PWM mode operation greater than 1 MHz. The use of a switching 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 supply to the typical 3.8 V value of the VCC supply. 12V u-blox C200 R1 5 9 10 C1 RUN VC RT 4 VIN BD  1 BOOST   2 SW  3 C7    L1 L2 C8 C9 VCC C2   C3 R2 R3 C4   C5  C6 7   PG 6   SYNC U1 GND 11 FB    8 D1 R4 R5 GND Figure 4: Suggested schematic design for the VCC voltage supply application circuit using a step-down regulator
LISA-C200&FW75-C200-System IntegrationManualCDMA-2X-11004-3 PreliminarySystem descriptionPage 14 of 43Reference Description Part Number – Manufacturer C1 47 µF Capacitor Aluminum 0810 50 V MAL215371479E3 – Vishay C2 10 µF Capacitor Ceramic X7R 5750 15% 50 V C5750X7R1H106MB – TDK C3 10 nF Capacitor Ceramic X7R 0402 10% 16 V GRM155R71C103KA01 – Murata C4 680 pF Capacitor Ceramic X7R 0402 10%  16 V GRM155R71H681KA01 – Murata C5 22 pF Capacitor Ceramic COG 0402 5% 25 V GRM1555C1H220JZ01 – Murata C6 10 nF Capacitor Ceramic X7R 0402 10% 16 V GRM155R71C103KA01 – Murata C7 470 nF Capacitor Ceramic X7R 0603 10%  25 V GRM188R71E474KA12 – Murata C8 22 µF Capacitor Ceramic X5R 1210 10% 25 V GRM32ER61E226KE15 – Murata C37 330 µF Capacitor Tantalum D_SIZE 6.3 V 45 m T520D337M006ATE045 - KEMET D1 Schottky Diode 40 V 3 A MBRA340T3G - ON Semiconductor L1  10 µH Inductor 744066100 30% 3.6 A  744066100 - Wurth Electronics L2  1 µH Inductor 7445601 20%  8.6 A  7445601 - Wurth Electronics R1 470 k Resistor 0402 5%  0.1 W  2322-705-87474-L - Yageo R2 15 k Resistor 0402 5% 0.1 W  2322-705-87153-L - Yageo R3 22 k Resistor 0402 5% 0.1 W  2322-705-87223-L - Yageo R4 390 k Resistor 0402 1%  0.063 W RC0402FR-07390KL - Yageo R5 100 k Resistor 0402 5%  0.1 W  2322-705-70104-L - Yageo U1 Step Down Regulator MSOP10 3.5 A 2.4 MHz LT3972IMSE#PBF - Linear Technology Table 4: Suggested components for the VCC voltage supply application circuit using a step-down regulator Low Drop-Out (LDO) linear regulator The  characteristics  of   the  LDO  linear  regulator  connected  to   the   VCC pins  should  meet  the  following requirements:     Power capabilities: the LDO linear regulator with its output circuit must be capable of providing a proper voltage value to the VCC pins and of delivering 1.2 A     Power dissipation: the power handling capability of the LDO linear regulator must be checked to limit its junction temperature to the maximum rated operating range (i.e. check the voltage drop from the max input voltage to the min output voltage to evaluate the power dissipation of the regulator) Figure 5 and the components listed  in Table 5 show  an example of  a  power supply  circuit, where the  VCC module supply  is  provided by an LDO  linear regulator capable of  delivering 1.2 Amps,  with  proper  power handling capability. The use of a linear regulator is suggested when the difference from the available supply rail and the VCC value is low: linear regulators provide high efficiency when transforming a 5 V supply to the 3.6 V typical value of the VCC supply. u-blox C200 5V 2   IN OUT   4 VCC C1 R1    1   SHDN U1 GND 3 ADJ  5 R2 C2 R3 GND Figure 5: Suggested schematic design for the VCC voltage supply application circuit using an LDO linear regulator
CDMA-2X-11004-3 PreliminarySystem descriptionPage 15 of 43LISA-C200&FW75-C200-System IntegrationManualReference Description Part Number - Manufacturer C1 10 µF Capacitor Ceramic X5R 0603 20% 6.3 V GRM188R60J106ME47 - Murata C2 10 µF Capacitor Ceramic X5R 0603 20% 6.3 V GRM188R60J106ME47 - Murata R1 47 k Resistor 0402 5% 0.1 W RC0402JR-0747KL - Yageo Phycomp R2 4.7 k Resistor 0402 5%  0.1 W RC0402JR-074K7L - Yageo Phycomp R3 2.2 k Resistor 0402 5%  0.1 W RC0402JR-072K2L - Yageo Phycomp U1 LDO Linear Regulator ADJ 3.0 A LT1764AEQ#PBF - Linear Technology Table 5: Suggested components for VCC voltage supply application circuit using an LDO linear regulator Rechargeable Li-Ion battery Rechargeable Li-Ion batteries connected to the VCC pins should meet the following requirements:     Maximum pulse and DC discharge current: the rechargeable Li-Ion battery with its output circuit must be capable of delivering 1.2 A to the VCC pins and must be capable of delivering a DC current greater than the module maximum average current consumption to VCC pins. The maximum  pulse discharge current and the maximum DC discharge  current are not always  reported in  battery data sheets,  but  the  maximum DC discharge current is typically almost equal to the battery capacity in Amp-hours divided by 1 hour     DC series resistance: the rechargeable Li-Ion battery with its output circuit must be capable of avoiding a VCC voltage drop greater than 250 mV during peak currents (Max Tx Power). Primary (disposable) battery The characteristics of a primary (non-rechargeable) battery connected to  VCC pins should meet the following requirements:     Maximum pulse and DC discharge current: the non-rechargeable battery with its output circuit must be capable of delivering 1.2 A to the VCC pins and must be capable of delivering a DC current greater than the module maximum average current consumption at the VCC pins. The maximum  pulse and the maximum DC discharge current is not always reported in battery data sheets, but the maximum DC discharge current is typically almost equal to the battery capacity in Amp-hours divided by 1 hour     DC series resistance: the non-rechargeable battery with its output circuit must be capable of avoiding a VCC voltage drop greater than 250 mV during peak currents (Max Tx Power). Additional recommendations for the VCC supply application circuits To  reduce voltage drops, use a  low  impedance power source.   The  resistance  of  the  power supply  lines (connected to the VCC and GND pins of  the module) on the application board and battery pack should also be considered and minimized: cabling and routing must be as short as possible in order to minimize power losses. Three3  or five4 pins are allocated for VCC supply. Another seven pins are designated for GND connection. Even if all the VCC 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 in order to minimize  series resistance losses. The  placement ceramic capacitors on  the  VCC line on the main board close to  the connector will benefit operation. To reduce voltage ripple and noise, place the following near the VCC pins:     100 nF capacitor (e.g Murata GRM155R61A104K) to filter digital logic noise from clocks and data sources     22 µF capacitor (e.g. Murata GRM31CR60J226K) to supply local DC energy.             Figure 6 shows the complete configuration but the mounting of each single component depends on the application design. 3 LISA-C200. 4 FW75.
CDMA-2X-11004-3 PreliminarySystem descriptionPage 16 of 43LISA-C200&FW75-C200-System IntegrationManualu-blox C200 3.6V VCC VCC VCC LISA-C200 +  VCC FW75 C1 C2  VCC GND Figure 6: Suggested schematic design to reduce voltage ripple and noise and to avoid undershoot/ overshoot on voltage drops Reference Description Part Number - Manufacturer C1 22 µF Capacitor Ceramic 6.3 V 45 GRM31CR60J226K - Murata C2 100 nF Capacitor Ceramic X7R 0402 10%  16 V GRM155R61A104KA01 - Murata Table 6: Suggested components to reduce voltage ripple and noise and to avoid undershoot/ overshoot on voltage drops
CDMA-2X-11004-3 PreliminarySystem descriptionPage 17 of 43LISA-C200&FW75-C200-System IntegrationManual1.4.3   Current consumption profiles During operation, the current drawn by the LISA-C200 & FW75-C200 modules through the VCC pins can vary by several orders of magnitude. This ranges from continuous high current drawn in CDMA connected mode, to the low current consumption during in idle mode. 1.4.3.1    CDMA connected mode During a CDMA connection, the module can transmit and receive continuously due to the Frequency Division Duplex (FDD)  mode of operation with  the Code Division Multiple Access (CDMA).  The current consumption depends  again on  output RF  power, which is always  regulated by network commands.  These power control commands are logically divided into a slot of 1.25 ms, thus the rate of  power change can reach a maximum rate of 800 Hz. Since transmission and reception are continuously enabled due to FDD CDMA 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 250 mW or 24 dBm), the current dra wn by the module at the VCC pins is in the order of continuous 600-700 mA. Even at lowest  output RF  power (approximately 0.01 µW or -50 dBm), the current is in the order of  less than 100 mA due to module baseband processing and transceiver activity. An example of current consumption  profile  of  the  data  module in  CDMA continuous transmission  mode is shown in Figure 7. Curre nt [mA] 700 610 mA 600 500 400 Depends  on  TX  pow er 300 200 100 <100 mA Not actual data f or illustration 0 1 slot 3G frame Time [ms] Figure 7: VCC current consumption profile versus time during a CDMA connection, with VCC=3.8 V When a packet data connection is established, the actual current profile depends on the amount of transmitted packets; there might be some periods of  inactivity between allocated slots where current consumption  drops about 100 mA. Alternatively, at higher data rates the transmitted power is likely to increase due to the higher quality signal required by the network  to cope with enhanced data speed.
CDMA-2X-11004-3 PreliminarySystem descriptionPage 18 of 43LISA-C200&FW75-C200-System IntegrationManual1.5    System functions 1.5.1   Module power on The module power on sequence is initiated in one of these ways:     Rising edge on the VCC pin to a valid voltage for module supply AND if the PWR_ON pin is permanently low when VCC is applied     Falling edge on the PWR_ON pin (pin must be held low for >150 msec) Name Description Remarks PWR_ON Power on input PWR_ON pin has internal pull up resistor. Recommended to use open collector or drain configuration to pull down. Table 7: Power on pin             The PWR_ON pin ESD sensitivity rating is 1 kV (Human Body Model according to JESD22-A114F). Higher protection  level could be required if  the  line is externally  accessible on the application board. Higher protection level can be achieved by mounting an ESD protection (e.g. EPCOS CA05P4S14THSG varistor array) on the line connected to this pin. 1.5.1.1    Rising edge on VCC     \When a supply  is connected to  VCC pins, the module supply supervision circuit controls the subsequent activation of the power up state machines: the module is switched on when the voltage rises up to the VCC operating range minimum limit (3.4 V) starting from a voltage value lower than 2.25 V (See LISA-C200 Data Sheet [1] or the FW75-C200 Data Sheet [2]), provided that the PWR_ON pin is permanently  low when VCC is applied. 1.5.1.2    Falling edge on PWR_ON The module power on sequence starts when a falling edge is forced on the PWR_ON input pin. After applying a falling edge, it is suggested to hold a low level on the PWR_ON signal for at least 300 ms to properly switch on the module. The electrical characteristics of the PWR_ON input pin are different from the other digital I/O interfaces: the high and the low  logic levels have different operating ranges and the pin is not-tolerant  to voltages up to the battery voltage. The detailed electrical characteristics are described in the LISA-C200 Data Sheet [1] or the FW75-C200 Data Sheet [2]. Once the module has been turned on, PWR_ON pin has no effect. On the other hand it makes no sense to keep this pin low once the module has been turned on: if the pin is kept low it will draw unnecessary current. Following are some typical examples of application circuits to turn the module on using the PWR_ON input pin. The simplest way to turn on the module is to use a push button that shorts the PWR_ON pin to ground. If the PWR_ON input is connected  to an external device (e.g. application processor), it is suggested to use an open drain output  on the external device.
CDMA-2X-11004-3 PreliminarySystem descriptionPage 19 of 43LISA-C200&FW75-C200-System IntegrationManualu-blox C200 Power-on push button ESD PWR_ON Application Processor u-blox C200 Open Drain Output PWR_ON Figure 8: PWR_ON application circuits using a push button and an open drain output of an application processor Reference Description Remarks ESD CT0402S14AHSG - EPCOS Varistor array for ESD protection Table 8: Example of pull-up resistor and ESD protection for the PWR_ON application circuits 1.5.1.3    Additional considerations The module is switched on when the voltage rises up to the VCC operating range: the first time that the module is used,  it is  switched  on  in this  way. Then, the proper way to switch  off  the  module is  by means of the AT+CPWROFF command. When the  module is in power-off mode, i.e. the AT+CPWROFF command has been sent  and a voltage value within  the operating range limits  is still provided to the VCC pin, the digital input- output pads of the baseband chipset (i.e. all the digital pins of the module) are locked in tri-state (i.e. floating). The power down tri-state function isolates the module pins from its environment, when no proper operation of the outputs can be guaranteed. The module can be switched on from power-off mode by forcing a proper start-up  event (i.e. a falling  edge on the PWR_ON pin). After the detection of a start-up event, all the digital pins of the module are held in tri-state until all the internal LDO voltage regulators are turned on in a defined power-on sequence. Then, as described in Datasheet the baseband core is still held in reset state for a time interval: the internal reset signal (which is not available on a module pin) is still low and any signal from the module digital interfaces is held in reset state. The reset state of all the digital pins is reported in the pin description table of the LISA-C200 Data Sheet [1] or the FW75-C200 Data Sheet  [2].  When the  internal signal  is  released,  the configuration of the module interfaces starts: during this phase any digital pin is set in a proper sequence from the reset state to the default operational configuration. Finally, the module is fully ready to operate when all interfaces are configured.             The Internal Reset signal is not available on a module pin.
CDMA-2X-11004-3 PreliminarySystem descriptionPage 20 of 43LISA-C200&FW75-C200-System IntegrationManual1.5.2   Module power off The correct way to switch off LISA-C200 & FW75-C200 modules is by means of +CPWROFF AT command (more details in u-blox C200 AT Commands  Manual [3]): in this way the current parameter settings are saved in the module’s non-volatile memory and a proper network detach is performed. An under-voltage shutdown will be done if the VCC supply is removed,  but in this case the current parameter settings are not  saved in the module’s non-volatile memory and a proper network detach cannot be performed. 1.5.3   Module reset The module reset can be performed: Forcing a low level on the RESET_N input pin, causing an “external” or “hardware” reset (LISA-C200 only) AT+CFUN command (more details in u-blox C200 AT Commands  Manual [3]): in this case an  “internal”  or “software” reset is performed, causing an asynchronous  reset of the baseband processor 1.6  RF connection The ANT connector has 50     nominal characteristic impedance and must be connected to the antenna through a 50     transmission line to allow transmission and reception of radio frequency (RF) signals  in the Cell and PCS operating bands. Name Description  Remarks ANT FW75 LISA-C200 RF connector Zo = 50  nominal characteristic impedance. U.FL connector Surface Mount pad Table 9: Antenna connector The ANT port ESD immunity rating is 500 V (according to IEC 61000-4-2). Higher protection level could be required if the line is externally  accessible on the application board. Choose an antenna with  optimal radiating characteristics for the best electrical performance and overall module functionality. Focus on minimizing the insertion loss between radiating antenna and the module RF connector. Overall system performance depends on antenna reception and transmission. See section 2.4 for further details regarding antenna guidelines.
CDMA-2X-11004-3 PreliminarySystem descriptionPage 21 of 43LISA-C200&FW75-C200-System IntegrationManual1.7  Serial communication LISA-C200 & FW75-C200 modules provide the following serial communication interfaces where AT command interface and Packet-Switched  Data communication are concurrently available:     One asynchronous  serial  interface (UART)  that  provides  RS-232  functionality conforming to  ITU-T V.24 Recommendation [4], with limited data rate.     One full-speed USB 2.0 compliant interface, with maximum data rate of 12 Mb/s.     Only one interface is active. Default is USB, if no USB is detected then it is assumed  that the UART interface is desired. LISA-C200 & FW75-C200 modules are designed to operate as a CDMA wireless modem, which represents the data circuit-terminating equipment (DCE) as described   by the ITU-T  V.24 Recommendation  [4].  A  customer application processor  connected to  the  module  through  one  of  the interfaces  represents the data terminal equipment (DTE). All the interfaces listed above are controlled and operated with:     Sprint required AT Commands Verizon required AT Commands AT commands according to 3GPP TS 27.010 [7] AT commands according to 3GPP TS 27.005 [6]     AT commands according to 3GPP TS 27.010     u-blox AT commands             For the  complete list  of  supported  AT  commands  and  their  syntax  refer  to  the  u-blox  C200 AT Commands Manual [3]. The USB interface, using all the lines provided (VUSB_DET, USB_D+ and USB_D-), can be used for  firmware upgrade:             To directly enable  PC (or  similar) connection to  the  module for  firmware  upgrade, provide direct access on the application board to the VUSB_DET, USB_D+ and USB_D- lines of the module . Also provide access to the PWR_ON & HW_SHUTDOWN pins, or enable the DC supply connected to the VCC pin to start  the  module firmware  upgrade The following sub-chapters describe serial interface configuration and provide a detailed description of each interface for the application circuits. 1.7.1  Serial interfaces configuration UART  and  USB   serial   interfaces  are  available as   AT   command  interface  and  for  Packet-Switched  Data communication. The serial interfaces  are configured as described  in Table 10 (for information about further settings, please refer to the u-blox C200 AT Commands Manual [3]). Note : The UART is 5 wire implementation therefore DTR, DSR and DCD functions are not available.
CDMA-2X-11004-3 PreliminarySystem descriptionPage 22 of 43LISA-C200&FW75-C200-System IntegrationManualInterface AT Settings Comments UART interface Enabled Multiplexing mode can be enabled by AT+CMUX command providing following  channels:      Channel 0: control channel      Channel 1: AT commands      Channel 2: data connection AT+IPR=115200 Baud rate: 115200 b/s AT+ICF=0,0 Frame format: 8 bits, no parity, 1 stop bit USB interface Enabled  Table 10: Default serial interfaces configuration 1.7.2  Asynchronous serial interface (UART) The UART interface is a 5-wire unbalanced  asynchronous  serial interface that provides AT commands interface and PSD data communication. UART  interface provides  RS-232  functionality conforming to the ITU-T  V.24 Recommendation  (more details available in ITU Recommendation [4]), with CMOS compatible signal levels: 0 V for low data bit or ON state, and 2.8 V for high data bit or OFF state. One external voltage translators (e.g. Maxim MAX13234E) could be used to provide RS-232 (5 lines) compatible signal levels. This chip translates the voltage levels from 1.8 V (module side) to the RS-232 standard. For detailed electrical characteristics refer to LISA-C200  Data Sheet  [1] or the FW75- C200 Data Sheet [2].            FW75-C200 logic levels are 2.8 V interface. LISA-C200 logic levels are 1.8 V interface. The LISA-C200 & FW75-C200 modules are designed to operate as a CDMA wireless modem, which represents the data circuit-terminating equipment (DCE) as described  by the ITU-T V.24 Recommendation [4]. A customer application processor  connected to  the  module  through  the UART  interface represents  the data terminal equipment (DTE).             The signal names of the LISA-C200 & FW75-C200 modules UART interface conform to  the ITU-T V.24 Recommendation [4]. UART interfaces include the following lines: Name Description Remarks RI Ring Indicator Module output RTS Ready to send Module hardware flow control input  Circuit 105 (Request to send) in ITU-T V.24 FW75 - Internal active pull-up to V_INT (2.8 V) interface. LISA-C200- Internal active pull-up to V_INT (1.8 V) interface. CTS Clear to send  Module hardware flow control output  Circuit 106 (Ready for sending) in ITU-T V.24 FW75-C200 - Internal active pull-up to V_INT (2.8 V) interface. LISA-C200- Internal active pull-up to V_INT (1.8 V) interface. TxD Transmitted  data  Module data input  Circuit 103 (Transmitted data) in ITU-T V.24 Internal active pull-up to V_INT (2.8 V) enabled. FW75-C200- Internal active pull-up to V_INT (2.8 V) interface. LISA-C200- Internal active pull-up to V_INT (1.8 V) interface. RxD Received data Module data output  Circuit 104 (Received data) in ITU-T V.24 FW75-C200- Internal active pull-up to V_INT (2.8 V) interface. LISA-C200- Internal active pull-up to V_INT (1.8 V) interface. GND Ground Table 11: UART interface signals
CDMA-2X-11004-3 PreliminarySystem descriptionPage 23 of 43LISA-C200&FW75-C200-System IntegrationManualThe UART interface pins ESD sensitivity rating is 1 kV (Human Body Model according to JESD22-A114F). Higher protection level could be required if the lines are externally  accessible on the application board. Higher protection level can be achieved by mounting an ESD protection (e.g. EPCOS CA05P4S14THSG varistor array) on the lines connected to these pins. UART application circuits Providing the TxD, RxD, RI, RTS and CTS lines only (not using the complete V.24 link) Modem DSR, DCD and DTR lines is not available in the application, the application circuit described in Figure 9 must be implemented: Application Processor (DTE) u-blox C200 (DCE) TxD RxD RTS CTS DTR DSR RI DCD GND 0   TP 0   TP 0   TP 0   TP TXD RXD RTS CTS RI GND Figure 9: UART interface application circuit with partial V.24 link (5-wire) in the DTE/DCE serial communication Additional considerations             If the module USB interface is connected  to the application processor, testpoints can be added on the lines to accommodate the access and a 0  series resistor must be mounted on each line to detach the module pin from any other connected device. Otherwise, if the USB interface is not connected to the application processor,  it  is  highly recommended to  provide direct access  to  VUSB_DET,  USB_D+, USB_D- lines  for execution of  firmware upgrade over USB  and for  debug purpose. In both cases, provide as well access to RESET_N pin, or to the PWR_ON pin, or enable the DC supply connected to the VCC pin to start the module firmware upgrade.
CDMA-2X-11004-3 PreliminarySystem descriptionPage 24 of 43LISA-C200&FW75-C200-System IntegrationManual1.7.3  USB interface LISA-C200 & FW75-C200 modules provide a full-speed USB interface at  12  Mb/s compliant with  the Universal Serial Bus Revision 2.0 specification [9]. It acts as a USB device and can be connected to any USB host such as a PC or other Application Processor. The USB-device  shall  look for all upper-SW-layers like any other serial device. This  means that LISA-C200  & FW75-C200 modules emulate all serial control logical lines.             If the logical  DTR line isn't enabled  by the USB host, the module doesn’t  answer  to AT commands  by the USB interface. Name Description  Remarks VUSB_DET  USB detect input   Apply 5 V typical to enable USB USB_D+  USB Data Line D+ 90  nominal differential impedance. Pull-up or pull-down resistors and external series resistors as required by the USB 2.0 high-speed specification [9] are part of the USB pad driver and need not be provided externally. USB_D-  USB Data Line D- 90  nominal differential impedance. Pull-up or pull-down resistors and external series resistors as required by the USB 2.0 high-speed specification [9] are part of the USB pad driver and need not be provided externally. Table 12: USB pins             The USB interface pins ESD sensitivity rating is 1 kV (Human Body Model according to JESD22-A114F). Higher protection level could be required if  the lines are externally  accessible on the application board. Higher protection level can be achieved by mounting a very low capacitance (i.e. less or equal to 1 pF) ESD protection (e.g. Tyco Electronics PESD0402-140 ESD protection device) on the lines connected to these pins. LISA-C200  &  FW75-C200 module identifies  itself  by its  VID (Vendor ID)  and PID  (Product  ID)  combination, included in the USB device descriptor. VID and PID of LISA-C200 & FW75-C200 modules are the following: VID = 0x1546 PID = 0x1121 1.7.3.1    USB application circuit Since the module acts  as a USB device, the USB supply  (5.0 V typ.) must  be provided to VUSB_DET by the connected USB host. The USB interface is enabled only when a valid voltage as USB supply is detected by the VUSB_DET input. Neither the USB interface, nor the whole module is supplied by the VUSB_DET input: the VUSB_DET  senses the USB supply voltage and absorbs few microamperes. The USB_D+ and USB_D- lines carry the USB serial data and signaling. The lines are used in single ended mode for relatively low speed signaling handshake, as well as in differential mode for fast signaling and data transfer. USB pull-up or pull-down resistors on pins USB_D+ and USB_D- as required  by the Universal Serial Bus Revision 2.0 specification [9] are part of the USB pad driver and do not need to be externally provided. External  series  resistors  on  pins USB_D+ and  USB_D- as  required by the Universal   Serial  Bus  Revision  2.0 specification [9] are also integrated: characteristic impedance of USB_D+ and USB_D-  lines is specified by the USB  standard.  The  most  important  parameter is  the  differential  characteristic  impedance applicable for odd-mode electromagnetic field, which should be as close as possible  to  90     differential: signal integrity may be degraded if the PCB layout is not optimal, especially when the USB signaling lines are very long.
CDMA-2X-11004-3 PreliminarySystem descriptionPage 25 of 43LISA-C200&FW75-C200-System IntegrationManualUSB DEVICE CONNECTOR u‐bloxC200VBUS VUSB_DET D+  USB_D+ D-  USB_D- GND D1 D2 D3  C1 GND Figure 10: USB Interface application circuit Reference Description Part Number - Manufacturer D1, D2, D3 Very Low Capacitance ESD Protection PESD0402-140 - Tyco Electronics C2 100 nF Capacitor Ceramic X7R 0402 10%  16 V GRM155R61A104KA01 - Murata Table 13: Component for USB application circuit If the USB interface is not connected to the application processor, it is highly recommended to provide direct access to the VUSB_DET, USB_D+, USB_D- lines for execution of firmware upgrade over USB and for  debug purpose: testpoints can be added on the lines to accommodate the access. Provide access to RESET_N pin, or to the PWR_ON pin, or enable the DC supply connected to the VCC pin to start the module firmware upgrade             If the USB interface is not used, the USB_D+, USB_D- and VUSB_DET pins can be left unconnected, but it is highly recommended to provide direct access to the lines for execution of firmware upgrade and for debug purpose. 1.7.4   MUX Protocol (3GPP 27.010) LISA-C200 & FW75-C200 modules have a software layer with MUX functionality, 3GPP  TS 27.010 Multiplexer Protocol [7], available on the UART physical link. The USB interface doesn’t  support  the multiplexer protocol. This  is a data link protocol (layer 2 of OSI model)  which uses HDLC-like  framing and operates  between the module (DCE) and the application processor  (DTE) and allows a number of simultaneous sessions over the UART: the  user  can  concurrently use AT  command  interface  on  one  MUX  channel  and Packet-Switched  Data communication on  another MUX channel..   Each session consists of a stream of bytes transferring various kinds of data such as SMS, PSD, AT commands in general. This permits, for example,  SMS to be transferred to the DTE when a data connection  is in progress. The following virtual channels are defined:     Channel 0: control channel     Channel 1: AT commands     Channel 2: data connection 1.8    Reserved pins (RSVD) LISA-C200  & FW75-C200  modules  have pins  reserved  for future use. All the RSVD pins/pads must  be left unconnected on the application board.
CDMA-2X-11004-3 PreliminarySystem descriptionPage 26 of 43LISA-C200&FW75-C200-System IntegrationManual1.9 Schematic for LISA-C200 and FW75-C200 modules integration Figure 11 shows the integration of a LISA-C200 / FW75-C200 modules into an application board, using all the module interfaces. 3V6 + 22µF 100nF FW75-C200 ANT VCC VCC VCC VCC V_INT Antenna Connection FW75 – U.FL Connector LISA-C200 SMT PAD 1k SIM Card Holder SW1 Application Processor Open Drain Output Ferrite Bead VCC GND PWR_ON GPIO5 VSIM SIM_IO SIM_CLK SIM_RST 470k 47pF 47pF 47pF 47pF 100nF ESD ESD ESD ESD ESD ESD SW2 CCVCC (C1) CCVPP (C6) CCIO (C7) CCCLK (C3) CCRST (C2) GND (C5) Open Drain Output 47pF HW_SHUTDOWN  (FW75-C200) RESET_N (LISA-C200) DTE FW75 - 2.8V LISA – 1.8V TXD RXD RTS CTS DTR DSR 0  TP 0  TP 0  TP 0  TP TXD RXD RTS CTS DTR DSR GPIO2 GPIO3 GPIO4 LISA‐C200onlyRI GND RI GND USB 2.0 Host VBUS D+ D- GND 100nF VUSB_DET USB_D+ USB_D- GND 3V8 Network Indicator GPIO1 Figure 11: Example schematic integrating FW75-C200/LISA-C200 module in an application board, using all the interfaces             UART FW75-C200  and LISA-C200 pins use different voltage levels (1.8V  LISA-C200, 2.8V FW75-C200)
CDMA-2X-11004-3 PreliminarySystem descriptionPage 27 of 43LISA-C200&FW75-C200-System IntegrationManual1.10 Approvals LISA-C200 & FW75-C200 modules have been or will be approved under the following schemes:     CDG1 CDMA Development Group 1 Radio Conformance Testing     CDG2 CDMA Development Group 2 Inter-operability     Sprint Carrier Certification     Verizon Carrier Certification     FCC (Federal Communications Commission)     IC (Industry Canada) 1.10.1 Declaration of Conformity for products  marked  with  the FCC  logo - United States only           Radiofrequency radiation  exposure Information:  this equipment complies with  FCC  radiation exposure limits prescribed for an uncontrolled environment. This equipment should be installed and operated with a minimum distance of 20 cm between the radiator and your body. 1.10.2 Modifications The FCC requires  the user to be notified that any changes or modifications made to this device that are not expressly approved by u-blox could void the user's authority to operate the equipment.            Manufacturers  of  mobile or fixed  devices incorporating the LISA-C200 & FW75-C200 modules are authorized to use the FCC Grants and Industry Canada Certificates of the LISA-C200 & FW75- C200  modules for  their  own  final  products  according to  the  conditions  referenced  in  the certificates.            The FCC Label  shall in the above case be visible from the outside, or the host device shall bear a second label stating:  for FW75: “Contains  FCC ID: XU9-FW75”  And for LISA C200 “Contains FCC ID: R5Q-LISAC200A”            The IC Label shall in the  above case be visible from the outside, or the host device shall bear a second label stating for FW75: “Contains  IC: 8694A-FW75”  And for LISA C200 “Contains IC: 8595B-LISAC200A”            Canada, Industry Canada (IC) Notices Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.            Canada, avis d'Industrie Canada (IC) Les  changements ou modifications n'ont  pas était  expressément approuvés par la partie responsable de  la  conformité,  ils pourraient  annulée l'autorité  de l'utilisateur pour exploiter l'équipement.
LISA-C200&FW75-C200-System IntegrationManualCDMA-2X-11004-3 PreliminaryDesign-InPage 28 of 432 Design-In 2.1  Design-in checklist 2.1.1  Schematic checklist The following are the most important points for a simple schematic check:  DC supply must provide a nominal voltage at VCC pin above the minimum operating range limit.  DC supply must be capable of supporting 1.2 A, providing a voltage at VCC pin above the minimum operating range limit and with a maximum 250 mV voltage drop from the nominal value.  VCC supply should be clean, with very low ripple/noise: suggested passive filtering parts can be inserted.  Connect only one DC supply to VCC: different DC supply systems are mutually exclusive.  Don’t apply loads which might exceed  the limit for maximum available current  from V_INT supply.  Check that voltage level of any connected pin does not exceed the relative operating range.  Capacitance and series resistance must be limited on each SIM signal to match the SIM specifications.  Insert the suggested low capacitance ESD protection and passive filtering parts on each SIM signal.  Check UART signals direction, since the signal names follow the ITU-T V.24 Recommendation [4].  Provide  appropriate access to USB interface and/or to UART  RxD, TxD lines and access to  PWR_ON and/or HW_SHUTDOWN lines on the application board in order to flash/upgrade the module firmware.  Provide appropriate access to USB interface and/or to UART RxD, TxD, CTS, RTS lines for debugging.  Add a proper pull-up resistor to a proper supply on each DDC (I2C) interface line, if the interface is used.  Capacitance and series resistance must be limited on each line of the DDC interface.  Use transistors with at least an integrated resistor in the base pin or otherwise put a 10 k resistor on the board in series to the GPIO when those are used to drive LEDs.  Insert the suggested passive filtering parts on each used analog audio line.  Provide proper precautions for ESD immunity as required  on the application board.  All unused pins can be left floating on the application board Layout checklist The following are the most important points for a simple layout check:  Check 50  nominal characteristic  impedance of  the RF  transmission  line  connected to  ANT  coax connector or Printed Circuit Board 50 transmission line impedance for LISA-C200  Follow the recommendations of the antenna producer for correct antenna installation and deployment.  Ensure no coupling occurs with other noisy or sensitive signals (primarily SIM signals).  VCC line should be wide and short.  Ensure proper grounding.  Consider “No-routing” areas for the Data Module footprint.  Optimize placement for minimum length of RF line and closer path from DC source for VCC.  Design USB_D+ / USB_D- connection  as 90 differential pair. 2.1.2   Antenna checklist  Antenna should have 50 impedance,   V.S.W.R less then 3:1, recommended 2:1 on operating bands in deployment geographical area.  Follow the recommendations of the antenna producer for correct antenna installation and deployment (PCB layout and matching circuitry).
LISA-C200&FW75-C200-System IntegrationManualCDMA-2X-11004-3 PreliminaryDesign-InPage 29 of 432.2  Connectors (FW75) The following design information is to aid the design for proper selection of mating connectors and antennas. 2.2.1  FW75-C200 modem connector Manufacturer  Series Name Part No. Specification  Description  Remarks Molex SlimStack 52991-0808 PS-54-167-002 Receptacle 80 pins, 0.50mm pitch, 4mm stacking height Website : www.molex.com    Drawing: 529910708_sd.pdf (mechanical, land pattern and reel specifications)    Data sheet : 05339160208_PCB_RECEPTABLES.pdf Table 14: FW75-C200 modem connector  Figure 12: FW75-C200 modem connector 2.2.2  FW75-C200 Board to Board host connector Manufacturer  Series Name Part No. Specification  Description  Remarks Molex SlimStack 53916-0808 PS-54-167-002 Header 80 pins, 0.50mm pitch, 4mm stacking height Website : www.molex.com    Drawing: 539160208_sd.pdf (mechanical, land pattern and reel specifications)    Data sheet : 05339160208_PCB_HEADERS.pdf Table 15: FW75-C200 host mate connector  Figure 13: FW75-C200 host mate connector
LISA-C200&FW75-C200-System IntegrationManualCDMA-2X-11004-3 PreliminaryDesign-InPage 30 of 432.2.3  FW75-C200  RF antenna connector Manufacturer  Series Name Part No. Specification  Description  Remarks Molex 73412 73412-0110 PS-73598-02 Microcoaxial RF, 50 , PCB Vertical Jack Receptacle, SMT, 1.25 mm (0.049”) Mounted Height Website : www.molex.com    Drawing: 734120110_sd.pdf (mechanical, land pattern and reel specifications)    Data sheet: 0734120110_RF_COAX_CONNECTORS.pdf Table 16: FW75-C200 antenna connector  Figure 14: FW75-C200 antenna connector
LISA-C200&FW75-C200-System IntegrationManualCDMA-2X-11004-3 PreliminaryDesign-InPage 31 of 432.3  Design Guidelines The  following  design  guidelines  must  be  met  for  optimal  integration  of  LISA-C200  module  on  the  final application board. 2.3.1   Layout guidelines per pin function This section groups the u-blox C200 module pins by signal function and provides a ranking of importance in layout design. See 1: FW75-C200 2: LISA-C200 Table 17 for a list of pins ranked by their importance in layout design. See the  LISA-C200 Data Sheet [1] or the FW75 Data Sheet [2] for the complete pin lists. Rank Function  Pin(s)  Layout  Remarks 1st RF Connector 2nd  Main DC Supply 3rd USB Signals   ANT     VCC    USB_D+    USB_D-   Very Important  Design for 50 characteristic impedance. Very Important  VCC line should be wide and short. Route away from sensitive analog signals. Very Important  Route USB_D+ and USB_D- as differential lines: design for 90  differential impedance. 4th   Ground GND  Careful Layout  Provide proper grounding. 5th  Sensitive Pin : Careful Layout  Avoid coupling with noisy signals. Power On HW_SHUTDOWN 6th   Digital pins and supplies: PWR_ON HW_SHUTDOWN Common Practice Follow common practice rules for digital pin routing. SIM Card Interface VSIM, SIM_CLK, SIM_IO, SIM_RST UART  TXD, RXD, CTS, RTS, RI External Reset HW_SHUTDOWN1 RESET_N2 General Purpose I/O2 GPIO1, GPIO2, GPIO3, GPIO4, GPIO5 USB detection VUSB_DET Supply for Interfaces V_INT 1: FW75-C200 2: LISA-C200 Table 17: Pin list in order of decreasing importance for layout design
LISA-C200&FW75-C200-System IntegrationManualCDMA-2X-11004-3 PreliminaryDesign-InPage 32 of 432.4  Antenna guidelines Antenna characteristics are essential for good functionality of the module. Antenna radiating performance has direct impact on the reliability of connections over the Air Interface. A bad termination of ANT can result in poor performance of the module. The following parameters should be checked: Item  Recommendations Impedance  50  nominal characteristic impedance Frequency Range Depends on the Mobile Network used. LISA-C200: - Cell Band  B0: 824..894 MHz -  PCS Band  B1  B2: 1850..1990 MHz Input Power  >2 W peak V.S.W.R  <2:1 recommended, <3:1 acceptable Return Loss  S11<-10 dB recommended,  S11<-6 dB acceptable Gain  <3 dBi Table 18: General recommendation for CDMA antenna To preserve the original u-blox FCC ID, antenna gain shall remain below 3 dBi. CDMA antennas are typically available as:     Linear monopole:  typical  for  fixed applications.  The antenna extends mostly  as  a linear element with  a dimension comparable to lambda/4 of the lowest frequency of the operating band. Magnetic base may be available. Cable or  direct RF  connectors are  common options.  The  integration  normally requires  the fulfillment of some minimum guidelines suggested by antenna manufacturer     Patch-like antenna: better suited for integration in compact designs (e.g. mobile phone). These are mostly custom designs where the exact definition of  the PCB and product mechanical design is fundamental for tuning of antenna characteristics For integration observe these recommendations:     Ensure  50   antenna termination by minimizing the V.S.W.R.  or return loss,   as  this  will  optimize  the electrical performance of the module. See section 2.4.1     Select antenna with best radiating performance. See section 2.4.2     If a cable is used to  connect the  antenna radiating element to  application board, select a short cable with minimum insertion loss. The higher the additional insertion loss due to  low  quality or long cable, the lower the connectivity     Follow the recommendations of the antenna manufacturer for correct installation and deployment     Do not include antenna within closed metal case     Do not place antenna in close vicinity to  end user since the emitted radiation in human tissue is limited by S.A.R. regulatory requirements     Do not use directivity  antenna since the electromagnetic field radiation intensity is limited in some countries     Take care of  interaction between co-located RF  systems   since  the RF  transmitted power may interact or disturb the performance of companion systems     Place  antenna far  from sensitive  analog systems  or  employ countermeasures  to  reduce electromagnetic compatibility issues that may arise
LISA-C200&FW75-C200-System IntegrationManualCDMA-2X-11004-3 PreliminaryDesign-InPage 33 of 432.4.1   Antenna termination The LISA-C200 & FW75-C200 modules are designed to  work on a 50     load. However, real antennas have no perfect 50     load on all the supported frequency bands. Therefore, to reduce  as much as possible  performance degradation due to antenna mismatch, the following requirements should be met: Measure the antenna termination with  a network analyzer: connect the antenna through  a coaxial cable to the measurement device, the |S11| indicates which portion of the power is delivered  to antenna and which portion is reflected by the antenna back to the module output. A good antenna should  have an |S11| below -10 dB over the entire frequency band. Due to  miniaturization, mechanical constraints and other design issues, this value will not be achieved. An |S11| value of about -6 dB – (in the worst case) - is acceptable. Figure 15 shows an example of this measurement:  Figure 15: |S11| sample  measurement of a penta-band antenna that covers in a small form factor the 4 bands (850 MHz, 900 MHz, 1800 MHz and 1900 MHz) Figure 16 shows comparable measurements performed on a wideband antenna. The termination is better, but the size of the antenna is considerably larger.  Figure 16: |S11| sample  measurement of a wideband antenna
LISA-C200&FW75-C200-System IntegrationManualCDMA-2X-11004-3 PreliminaryDesign-InPage 34 of 432.4.2   Antenna radiation An indication of the antenna’s radiated  power  can be approximated by measuring  the  |S21| from a target antenna to the measurement  antenna, using a network analyzer with a wideband antenna. Measurements  should  be done at a fixed distance and orientation, and results compared to measurements performed on a known good antenna. Figure 17 through Figure 18 show  measurement  results.  A wideband log periodic-like antenna was used, and the comparison was done with a half lambda dipole tuned at 900 MHz frequency. The measurements show both the |S11| and |S21| for the penta-band internal antenna and for the wideband antenna.  Figure 17: |S11| and |S21| comparison  between  a 900 MHz tuned half wavelength  dipole (green/purple) and a penta-band internal antenna (yellow/cyan) The half lambda dipole tuned at 900 MHz is known and has good radiation performance (both for gain and directivity). Then, by comparing the |S21| measurement with antenna under investigation for the frequency where the half dipole is tuned (e.g. marker 3 in Figure 17) it is possible to make a judgment on the antenna under test: if the performance is similar then the target antenna  is good. Figure   18:  |S11| and  |S21|  comparison   between   a  900  MHz  tuned  half  wavelength   dipole  (green/purple)  and  a  wideband commercial antenna (yellow/cyan) Instead if |S21| values for the tuned dipole are much better than the antenna under evaluation (like for marker 1/2 area of Figure 18, where dipole is 5 dB better), then it can be argued that the radiation of the target antenna (the wideband dipole in this case) is considerably less. The same procedure should be repeated on other bands with half wavelength dipole re-tuned to the band under investigation.
LISA-C200&FW75-C200-System IntegrationManualCDMA-2X-11004-3 PreliminaryDesign-InPage 35 of 43For good antenna radiation performance, antenna dimensions should be comparable to a quarter of the wavelength. Different  antenna types can be used for the module, many of them (e.g. patch antennas, monopole) are based on a resonating  element that works  in  combination with  a ground plane. The ground plane, ideally infinite, can be reduced down to a minimum size that must  be similar  to  one quarter of  the wavelength of  the minimum frequency that has to be radiated (transmitted/received). Numerical sample: frequency = 1 GHz  wavelength =  30  cm   minimum ground plane (or antenna size) = 7.5 cm. Below this size, the antenna efficiency is reduced. 2.5  ESD immunity test precautions The immunity of the device (i.e. the application board where LISA-C200  & FW75-C200  module is mounted) Electrostatic  Discharge  must  be  certified  in  compliance to  the testing  requirements standard  [12],  and  the requirements for radio and digital cellular radio telecommunications system equipment standards [12] and [14]. The ESD test is performed at the enclosure port referred to as the physical boundary through which the EM field radiates. If the device implements an integral antenna, the enclosure port is seen as all insulating and conductive surfaces housing the device. If the device implements a removable antenna, the  antenna port  can be separated from  the  enclosure port.  The  antenna port  comprises  the  antenna element and its  interconnecting cable surfaces. The applicability of  the ESD  test  depends  on  the  device classification,  as well the test  on  other ports  or  on interconnecting cables to auxiliary equipments depends  to  the  device accessible interfaces  and manufacturer requirements. Contact discharges are performed at  conductive surfaces whereas air discharges are performed on insulating surfaces. Indirect contact discharges are performed on the measurement setup horizontal and vertical coupling planes. Implement  the  following  precautions  to  satisfy  ESD  immunity test  requirements performed  at  the  device enclosure in compliance to the category level and shown in the following table. Application Category Immunity Level All exposed surfaces of the radio equipment and ancillary equipment in a representative configuration Contact Discharge  4 kV Air Discharge  8 kV Table 19: Electromagnetic  Compatibility (EMC) ESD immunity requirement,  standards “EN 61000-4-2,  EN 301 489-1 V1.8.1, EN 301 489-7 V1.3.1” Although EMC certification (including ESD immunity testing) must be performed in the final application of the radio equipment EUT, results are provided for LISA modules performing the test with a representative configuration to show that requirements can be met. Since an external antenna is used,  the antenna port can be separated from the enclosure port. The reference application is not enclosed in a box so the enclosure port is not indentified with physical surfaces. Therefore, some test cases cannot be applied. Only the antenna port is identified as accessible for direct ESD exposure. The reference application implements all precautions described in the sections below. ESD immunity test results and applicability are reported in Table 20 according to test requirements [12], [12] and [14].
LISA-C200&FW75-C200-System IntegrationManualCDMA-2X-11004-3 PreliminaryDesign-InPage 36 of 43Category Application Immunity Level Contact Discharge to coupling planes (indirect contact discharge)  Enclosure +2 kV / -2 kV +4 kV / -4 kV Contact Discharges to conducted surfaces (direct contact discharge)  Enclosure port   Not Applicable5 Contact Discharges to conducted surfaces (direct contact discharge)  Antenna port (only   antenna   with   completely insulating surface can be used) Not Applicable6 Air Discharge at insulating surfaces Enclosure port   Not Applicable7 Air Discharge at insulating surfaces Antenna port (only   antenna   with   completely +2 kV / -2 kV +4 kV / -4 kV insulating surface can be used)     +8 kV / -8 kV Table 20: Enclosure  ESD immunity level   result,  standards “EN 61000-4-2,  EN 301 489-1 V1.8.1, EN 301 489-7  V1.3.1”  for  LISA application reference design. 2.5.1   General precautions The  following  module interfaces  can have a critical influence in ESD  immunity testing,  depending on  the application board handling. The following precautions are suggested: HW_SHUTDOWN pin (FW75-C200 only) Sensitive interface is the reset line (HW_SHUTDOWN pin):     A 47 pF bypass capacitor (e.g. Murata GRM1555C1H470JA01)  have to be mounted on the line termination connected to  the  HW_SHUTDOWN pin to  avoid a module reset  caused by an electrostatic discharge applied to the application board enclosure     A  series  ferrite  bead (e.g. Murata  BLM15HD182SN1)  must  be  added  on  the  line  connected  to  the HW_SHUTDOWN  pin  to  avoid  a  module reset  caused by  an  electrostatic discharge  applied to  the application board enclosure     It is recommended  to keep the connection line to HW_SHUTDOWN   as short as possible Reset_N pin (LISA-C200 only) Sensitive interface is the reset line (Reset_N  pin):     A 47 pF bypass capacitor (e.g. Murata GRM1555C1H470JA01)  have to  be mounted on the line termination connected to the Reset_N  pin to avoid a module reset caused by an electrostatic discharge applied to  the application board enclosure     A series ferrite bead (e.g. Murata BLM15HD182SN1) must be added on the line connected to the Reset_N pin to avoid a module reset caused by an electrostatic discharge applied to the application board enclosure     It is recommended  to keep the connection line to  Reset_N as short as possible 5 LISA mounted on application design: Not Applicability -> EUT with insulating enclosure surface, EUT without enclosure surface Applicability -> EUT with conductive enclosure surface 6 LISA mounted on application design: Not Applicability -> Antenna with insulating surface Applicability -> Antenna with conductive surface 7 LISA mounted on application design: Applicability -> EUT with insulating enclosure surface Not Applicability -> EUT with conductive enclosure surface, EUT without enclosure surface
LISA-C200&FW75-C200-System IntegrationManualCDMA-2X-11004-3 PreliminaryDesign-InPage 37 of 43u-blox C200 Reset push button ESD FB1 C1 HW_SHUTDOWN Application Processor u-blox C200 Open Drain Output FB2 HW_SHUTDOWN C2 Figure 19: HW_SHUTDOWN  application circuits for ESD immunity test Reference Description Remarks ESD Varistor for ESD protection. CT0402S14AHSG - EPCOS C1, C2  47 pF Capacitor Ceramic C0G 0402 5% 50 V GRM1555C1H470JA01 - Murata FB1, FB2 Chip Ferrite Bead for Noise/EMI Suppression BLM15HD182SN1 - Murata Rint 10 k Resistor 0402 5% 0.1 W Internal pull-up resistor Table 21: Example of components as ESD immunity test precautions for the HW_SHUTDOWN line SIM interface Sensitive interface is the SIM interface (VSIM pin, SIM_RST pin, SIM_IO pin, SIM_CLK pin):     A 47 pF bypass capacitor (e.g. Murata GRM1555C1H470J) have to be mounted on the lines connected  to VSIM, SIM_RST, SIM_IO and SIM_CLK to assure SIM interface functionality when an electrostatic discharge is applied  to the application board enclosure     It is suggested to use as short as possible  connection   lines at SIM pins             SIM card interface is hardware  ready but not supported by the current software 2.5.2   Antenna interface precautions The antenna interface ANT can have a critical influence on the ESD immunity test depending on the application board handling. Antenna precaution suggestions are provided:     If the device implements an embedded antenna and the device insulating enclosure avoids air discharge up to +8 kV / -8 kV to the antenna interface, no further precautions to ESD immunity test should be needed     If the device implements an external antenna and the  antenna and its connecting cable are provided with  a completely insulating enclosure to avoid air discharge up to +8 kV / -8 kV to the whole antenna and cable surfaces, no further precautions to ESD immunity test should be needed
LISA-C200&FW75-C200-System IntegrationManualCDMA-2X-11004-3 PreliminaryDesign-InPage 38 of 43    If the device implements an external antenna and the antenna or its connecting cable are not provided with completely insulating enclosure to avoid air discharge up to +8 kV / -8 kV to the whole antenna and cable surfaces, the following precautions to ESD immunity test should be implemented on the application board A higher protection level is required at  the  ANT port if the line is externally  accessible on the application board. ESD immunity test requires protection up to +4 kV / -4 kV for direct Contact Discharge and up to +8 kV / -8 kV for Air Discharge applied to the antenna port. 2.5.3   Module interfaces precautions All the module pins that are externally  accessible should be included in the ESD immunity test since they are considered to be a port as defined in  [12]. Depending on applicability, and in order to satisfy ESD immunity test requirements and ESD category level, pins connected to the port should be protected up to +4 kV / -4 kV for direct Contact Discharge, and up to  +8 kV / -8 kV for  Air Discharge applied to the enclosure surface. The maximum ESD sensitivity rating of all the pins of the module, except the ANT pin, is 1 kV (Human Body Model according to JESD22-A114F). A higher protection level can be achieved by mounting an ESD protection (e.g. EPCOS CA05P4S14THSG varistor array or CT0402S14AHSG). For the USB interface a very low capacitance  (i.e. less or equal to 1 pF) ESD protection (e.g. Tyco Electronics PESD0402-140 ESD protection device) can be mounted on the lines connected to USB_D+ and USB_D- pins. For the SIM interface a low capacitance (i.e. less than 10 pF) ESD protection (e.g. Infineon ESD8V0L2B-03L or AVX USB0002) must be placed near the SIM card holder on each line (VSIM, SIM_IO, SIM_CLK, SIM_RST).
LISA-C200&FW75-C200-System IntegrationManualCDMA-2X-11004-3 PreliminaryFeatures descriptionPage 39 of 433 Features description 3.1  Firmware (upgrade) Over The Air (FOTA             LISA-C200 & FW75-C200 modules will support this feature. Sprint Carrier requirement.             Not supported nor required for Verizon Carrier. 3.2  UDP/IP             LISA-C200 & FW75-C200 modules will support this feature in the upcoming FW version. 3.3  HTTP             LISA-C200 & FW75-C200 modules will support this feature in the upcoming FW version.
LISA-C200&FW75-C200-System IntegrationManualCDMA-2X-11004-3 PreliminaryAppendixPage 40 of 43Appendix A Glossary ADC Analog to Digital Converter AP Application Processor AT AT Command Interpreter Software Subsystem, or attention CBCH Cell Broadcast Channel CS Coding Scheme CSD Circuit Switched Data CTS Clear To Send DC Direct Current DCD Data Carrier Detect DCE Data Communication Equipment DCS Digital Cellular System DDC Display Data Channel DSP Digital Signal Processing DSR  Data Set Ready DTE  Data Terminal Equipment DTM Dual Transfer Mode DTR  Data Terminal Ready EBU  External Bus Interface Unit CDMA CODE Division Multiple Access FDD Frequency Division Duplex FEM Front End Module FOAT Firmware Over AT commands FTP File Transfer  Protocol FTPS  FTP Secure GND Ground GPIO General Purpose Input Output GPS Global  Positioning System HF Hands-free HTTP  HyperText Transfer Protocol HTTPS Hypertext  Transfer Protocol over Secure Socket Layer HW Hardware I/Q In phase and Quadrature I2C Inter-Integrated Circuit I2S  Inter IC Sound IP Internet Protocol IPC Inter Processor Communication LNA Low Noise Amplifier MCS Modulation Coding Scheme NOM Network Operating Mode
LISA-C200&FW75-C200-System IntegrationManualCDMA-2X-11004-3 PreliminaryAppendixPage 41 of 43PA Power Amplifier PBCCH  Packet Broadcast Control Channel PCM Pulse Code Modulation PCS Personal  Communications Service PFM  Pulse Frequency Modulation PMU Power Management Unit RF Radio  Frequency RI Ring Indicator RTC Real Time Clock RTS  Request To Send RXD RX Data SAW Surface Acoustic Wave SIM  Subscriber Identification Module SMS  Short Message Service SMTP  Simple Mail Transfer Protocol SRAM  Static RAM TCP                                                       Transmission  Control Protocol TDMA                                                Time Division Multiple Access TXD                                                       TX Data UART Universal Asynchronous Receiver-Transmitter UDP User Datagram Protocol USB Universal Serial Bus
LISA-C200&FW75-C200-System IntegrationManualCDMA-2X-11004-3 PreliminaryRelated documentsPage 42 of 43Related documents [1] LISA-C200 Data Sheet, Docu No CDMA-2X-11001 [2] FW75 Data Sheet, Docu No CDMA-1X-11006 [3] u-blox C200 AT Commands Manual, Docu No CDMA-2X-11002 [4] ITU-T Recommendation V.24, 02-2000. List of definitions for interchange circuits between data terminal equipment (DTE) and data circuit-terminating equipment (DCE). http://www.itu.int/rec/T-REC-V.24-200002-I/en [5] 3GPP TS 27.007 - AT command set for User Equipment (UE) (Release 1999) [6] 3GPP  TS 27.005 - Use of Data Terminal Equipment - Data Circuit terminating; Equipment (DTE - DCE) interface for Short Message Service (SMS) and Cell Broadcast Service (CBS) (Release 1999) [7] 3GPP TS 27.010 - Terminal Equipment to User Equipment (TE-UE) multiplexer protocol (Release 1999) [8] 3GPP TS 23.060 - General Packet Radio Service (GPRS); Service description; Stage 2 (Release 1999) [9] Universal Serial Bus Revision 2.0 specification, http://www.usb.org/developers/docs/ [10] I2C-Bus Specification Version 2.1 Philips Semiconductors (January 2000), http://www.nxp.com/acrobat_download/literature/9398/39340011_21.pdf [11] GPS Implementation Application Note, Docu No GSM.G1-CS-09007 [12] CENELEC   EN   61000-4-2  (2001):  “Electromagnetic  compatibility  (EMC)  -  Part  4-2:  Testing  and measurement techniques - Electrostatic discharge immunity test”. [13] ETSI   EN   301  489-1  V1.8.1:  “Electromagnetic  compatibility  and   Radio   spectrum   Matters   (ERM); ElectroMagnetic  Compatibility (EMC)  standard  for  radio  equipment  and services;  Part  1:  Common technical requirements” [14] ETSI   EN   301  489-7   V1.3.1  “Electromagnetic   compatibility   and   Radio   spectrum    Matters   (ERM); ElectroMagnetic Compatibility (EMC) standard for radio equipment and services; Part 7: Specific conditions for  mobile and portable radio and ancillary equipment of  digital cellular radio telecommunications systems (GSM and DCS)“ Some of the above documents  can be downloaded from u-blox web-site (http://www.u-blox.com). Revision history Revision Date Name Status / Comments - 11/24/11 rcam  Initial Release 1 5/23/2012 smoi Updated product names 2 7/9/2012 smoi  Unification of SIM nomenclature 3 8/20/2012 smoi Document status change
LISA-C200&FW75-C200-System IntegrationManualCDMA-2X-11004-3 PreliminaryContactPage 43 of 43Contact For complete contact information visit us at www.u-blox.com u-blox Offices North, Central and South America u-blox America, Inc. Phone: +1 (703) 483 3180 E-mail: info_us@u-blox.com Regional Office West Coast: Phone: +1 (703) 483 3184 E-mail: info_us@u-blox.com Technical Support: Phone: +1 (703) 483 3185 E-mail: support_us@u-blox.com Headquarters Europe, Middle East, Africa u-blox AG Phone:  +41 44 722 74 44 E-mail: info@u-blox.com Support: support @u-blox.com Asia, Australia, Pacific u-blox Singapore Pte. Ltd. Phone: +65 6734 3811 E-mail: info_ap@u-blox.com Support: support_ap@u-blox.com Regional Office China: Phone:  +86 10 68 133 545 E-mail: info_cn@u-blox.com Support: support_cn@u-blox.com Regional Office Japan: Phone:  +81 3 5775 3850 E-mail: info_jp@u-blox.com Support: support_jp@u-blox.com Regional Office Korea: Phone: +82 2 542 0861 E-mail: info_kr@u-blox.com Support: support_kr@u-blox.com Regional Office Taiwan: Phone:  +886 2 2657 1090 E-mail: info_tw@u-blox.com Support: support_tw@u-blox.com

Navigation menu