Quectel Wireless Solutions 201404UC15 UMTS/HSDPA Module User Manual Quectel UC15 User Manual

Quectel Wireless Solutions Company Limited UMTS/HSDPA Module Quectel UC15 User Manual

Contents

Quectel_UC15_User_Manual

UC15 Hardware Design UMTS/HSDPA Module Series Rev. UC15_Hardware_Design_V1.3 Date: 2014-04-21 www.quectel.com
UMTS/HSDPA Module Series UC15 Hardware Design UC15_Hardware_Design Confidential / Released 1 / 79 Our aim is to provide customers with timely and comprehensive service. For any assistance, please contact our company headquarters: Quectel Wireless Solutions Co., Ltd. Office 501, Building 13, No.99, Tianzhou Road, Shanghai, China, 200233 Tel: +86 21 5108 6236 Mail: info@quectel.com Or our local office, for more information, please visit: http://www.quectel.com/support/salesupport.aspx For technical support, to report documentation errors, please visit: http://www.quectel.com/support/techsupport.aspx GENERAL NOTES QUECTEL OFFERS THIS INFORMATION AS A SERVICE TO ITS CUSTOMERS. THE INFORMATION PROVIDED IS BASED UPON CUSTOMERS’ REQUIREMENTS. QUECTEL MAKES EVERY EFFORT TO ENSURE THE QUALITY OF THE INFORMATION IT MAKES AVAILABLE. QUECTEL DOES NOT MAKE ANY WARRANTY AS TO THE INFORMATION CONTAINED HEREIN, AND DOES NOT ACCEPT ANY LIABILITY FOR ANY INJURY, LOSS OR DAMAGE OF ANY KIND INCURRED BY USE OF OR RELIANCE UPON THE INFORMATION. THE INFORMATION SUPPLIED HEREIN IS SUBJECT TO CHANGE WITHOUT PRIOR NOTICE. COPYRIGHT THIS INFORMATION CONTAINED HERE IS PROPRIETARY TECHNICAL INFORMATION OF QUECTEL CO., LTD. TRANSMITTABLE, REPRODUCTION, DISSEMINATION AND EDITING OF THIS DOCUMENT AS WELL AS UTILIZATION OF THIS CONTENTS ARE FORBIDDEN WITHOUT PERMISSION. OFFENDERS WILL BE HELD LIABLE FOR PAYMENT OF DAMAGES. ALL RIGHTS ARE RESERVED IN THE EVENT OF A PATENT GRANT OR REGISTRATION OF A UTILITY MODEL OR DESIGN. Copyright © Quectel Wireless Solutions Co., Ltd. 2014. All rights reserved.
UMTS/HSDPA Module Series UC15 Hardware Design UC15_Hardware_Design Confidential / Released 2 / 79 About the Document History Revision Date Author Description 1.0 2013-11-26 Mountain ZHOU Initial 1.1 2014-01-15 Huik LI 1． Modified packaging information of UC15 in the Chapter 7.3. 2． Modified Figure 4 and Figure 11. 3． Modified the description of command AT+CFUN in the Chapter 3.5.2. 1.2 2014-02-14 Huik LI Modified the frequency bands of UC15-A. 1.3 2014-04-21 Huik LI 1. Modified current consumption in Chapter 5.4. 2. Added PCM feature in Chapter 3.12.
UMTS/HSDPA Module Series UC15 Hardware Design UC15_Hardware_Design Confidential / Released 3 / 79 Contents About the Document ................................................................................................................................ 2Contents .................................................................................................................................................... 3Table Index ............................................................................................................................................... 6Figure Index .............................................................................................................................................. 71Introduction ....................................................................................................................................... 91.1.Safety Information ................................................................................................................... 92Product Concept ............................................................................................................................. 112.1.General Description ...............................................................................................................112.2.Directives and Standards ...................................................................................................... 122.2.1.FCC Statement ............................................................................................................ 122.2.2.FCC Radiation Exposure Statement ............................................................................ 122.3.Key Features ......................................................................................................................... 132.4.Functional Diagram ............................................................................................................... 152.5.Evaluation Board ................................................................................................................... 163Application Interface ....................................................................................................................... 173.1.General Description .............................................................................................................. 173.2.Pin Assignment ..................................................................................................................... 183.3.Pin Description ...................................................................................................................... 193.4.Operating Modes .................................................................................................................. 243.5.Power Saving ........................................................................................................................ 253.5.1.Sleep Mode.................................................................................................................. 253.5.1.1.UART Application ............................................................................................... 253.5.1.2.USB Application with Suspend Function ............................................................ 263.5.1.3.USB Application without Suspend Function ....................................................... 273.5.2.Minimum Functionality Mode ....................................................................................... 273.6.Power Supply ........................................................................................................................ 283.6.1.Power Supply Pins ....................................................................................................... 283.6.2.Decrease Voltage Drop ................................................................................................ 283.6.3.Reference Design for Power Supply ............................................................................ 293.6.4.Monitor the Power Supply ............................................................................................ 303.6.5.VDD_EXT .................................................................................................................... 303.7.Turn on and off Scenarios ..................................................................................................... 303.7.1.Turn on Module by PWRKEY Pin ................................................................................ 303.7.2.Turn off Module ............................................................................................................ 323.7.2.1.Turn off Module by PWRKEY Pin ...................................................................... 323.7.2.2.Turn off Module by AT Command ...................................................................... 333.7.2.3.Automatic Shutdown .......................................................................................... 333.8.Reset the Module .................................................................................................................. 343.9.UART Interface ..................................................................................................................... 353.9.1.The Connection of UART ............................................................................................. 363.9.2.UART Application ......................................................................................................... 38
UMTS/HSDPA Module Series UC15 Hardware Design UC15_Hardware_Design Confidential / Released 4 / 79 3.10.Behavior of the RI ................................................................................................................. 393.11.Analog Audio Interface .......................................................................................................... 403.11.1.Decrease TDD Noise and Other Noise ........................................................................ 413.11.2.Microphone Interfaces Application ............................................................................... 423.11.3.Receiver and Speaker Interface Application ................................................................ 433.11.4.Earphone Interface Application .................................................................................... 453.12.PCM and I2C Interface .......................................................................................................... 463.13.USIM Card Interface ............................................................................................................. 483.13.1.USIM Card Application ................................................................................................. 483.13.2.Design Considerations for USIM Card Holder ............................................................. 503.14.USB Interface ........................................................................................................................ 533.15.ADC Function ........................................................................................................................ 543.16.Network Status Indication ...................................................................................................... 553.17.Operating Status Indication ................................................................................................... 564Antenna Interface ............................................................................................................................ 584.1.Antenna Interface .................................................................................................................. 584.1.1.Pin Definition ................................................................................................................ 584.1.2.Operating Frequency ................................................................................................... 584.1.3.Reference Design ........................................................................................................ 584.2.Antenna Installation ............................................................................................................... 594.2.1.Antenna Requirement .................................................................................................. 594.2.2.Install the Antenna with RF Connector ......................................................................... 595Electrical, Reliability and Radio Characteristics .......................................................................... 625.1.Absolute Maximum Ratings .................................................................................................. 625.2.Power Supply Ratings ........................................................................................................... 635.3.Operating Temperature ......................................................................................................... 635.4.Current Consumption ............................................................................................................ 645.5.RF Output Power .................................................................................................................. 655.6.RF Receiving Sensitivity ....................................................................................................... 655.7.Electrostatic Discharge ......................................................................................................... 666Mechanical Dimensions.................................................................................................................. 676.1.Mechanical Dimensions of the Module.................................................................................. 676.2.Footprint of Recommendation ............................................................................................... 696.3.Top View of the Module ......................................................................................................... 706.4.Bottom View of the Module ................................................................................................... 707Storage and Manufacturing ............................................................................................................ 717.1.Storage.................................................................................................................................. 717.2.Manufacturing and Welding .................................................................................................. 717.3.Packaging ............................................................................................................................. 728Appendix A Reference .................................................................................................................... 749Appendix B GPRS Coding Scheme ............................................................................................... 77
UMTS/HSDPA Module Series UC15 Hardware Design UC15_Hardware_Design Confidential / Released 5 / 79 10Appendix C GPRS Multi-slot Class ................................................................................................ 7811Appendix D EDGE Modulation and Coding Scheme .................................................................... 79
UMTS/HSDPA Module Series UC15 Hardware Design UC15_Hardware_Design Confidential / Released 6 / 79 Table Index TABLE 1: FREQUENCY BANDS OF UC15 SERIES ......................................................................................... 11TABLE 2: UC15 KEY FEATURES ..................................................................................................................... 13TABLE 3: IO PARAMETERS DEFINITION ........................................................................................................ 19TABLE 4: PIN DESCRIPTION ........................................................................................................................... 19TABLE 5: OVERVIEW OF OPERATING MODES ............................................................................................. 24TABLE 6: VBAT AND GND PIN ......................................................................................................................... 28TABLE 7: ELECTRICAL CHARACTERISTICS OF VDD_EXT ......................................................................... 30TABLE 8: PWRKEY PIN DESCRIPTION .......................................................................................................... 30TABLE 9: RESET_N PIN DESCRIPTION ......................................................................................................... 34TABLE 10: PIN DEFINITION OF THE UART INTERFACE ............................................................................... 35TABLE 11: LOGIC LEVELS OF DIGITAL I/O .................................................................................................... 36TABLE 12: BEHAVIOR OF THE RI ................................................................................................................... 40TABLE 13: PIN DEFINITION OF THE AUDIO INTERFACE ............................................................................. 40TABLE 14: MICROPHONE CHARACTERISTICS............................................................................................. 45TABLE 15: SPEAKER CHARACTERISTICS .................................................................................................... 45TABLE 16: PIN DEFINITION OF PCM AND I2C INTERFACE .......................................................................... 47TABLE 17: PIN DEFINITION OF THE USIM INTERFACES ............................................................................. 48TABLE 18: PIN DESCRIPTION OF MOLEX USIM CARD HOLDER ................................................................ 51TABLE 19: PIN DESCRIPTION OF AMPHENOL USIM CARD HOLDER ........................................................ 52TABLE 20: USB PIN DESCRIPTION ................................................................................................................ 53TABLE 21: PIN DEFINITION OF THE ADC ...................................................................................................... 55TABLE 22: CHARACTERISTICS OF THE ADC ................................................................................................ 55TABLE 23: PIN DEFINITION OF NETWORK INDICATOR ............................................................................... 55TABLE 24: WORKING STATE OF THE NETWORK INDICATOR .................................................................... 55TABLE 25: PIN DEFINITION OF STATUS ........................................................................................................ 56TABLE 26: PIN DEFINITION OF THE RF ANTENNA ....................................................................................... 58TABLE 27: MODULE OPERATING FREQUENCIES ........................................................................................ 58TABLE 28: ANTENNA REQUIREMENTS .......................................................................................................... 59TABLE 29: ABSOLUTE MAXIMUM RATINGS .................................................................................................. 62TABLE 30: THE MODULE POWER SUPPLY RATINGS .................................................................................. 63TABLE 31: OPERATING TEMPERATURE ........................................................................................................ 63TABLE 32: MODULE CURRENT CONSUMPTION .......................................................................................... 64TABLE 33: MODULE CONDUCTED RF OUTPUT POWER ............................................................................. 65TABLE 34: MODULE CONDUCTED RECEIVING SENSITIVITY ..................................................................... 65TABLE 35: ELECTROSTATICS DISCHARGE CHARACTERISTICS ............................................................... 66TABLE 36: RELATED DOCUMENTS ................................................................................................................ 74TABLE 37: TERMS AND ABBREVIATIONS ...................................................................................................... 74TABLE 38: DESCRIPTION OF DIFFERENT CODING SCHEMES .................................................................. 77TABLE 39: DESCRIPTION OF DIFFERENT CODING SCHEMES .................................................................. 78TABLE 40: EDGE MODULATION AND CODING SCHEME ............................................................................. 79
UMTS/HSDPA Module Series UC15 Hardware Design UC15_Hardware_Design Confidential / Released 7 / 79 Figure Index FIGURE 1: FUNCTIONAL DIAGRAM ............................................................................................................... 16FIGURE 2: PIN ASSIGNMENT (TOP VIEW) .................................................................................................... 18FIGURE 3: UART SLEEP APPLICATION ......................................................................................................... 26FIGURE 4: USB APPLICATION WITH SUSPEND FUNCTION ........................................................................ 26FIGURE 5: USB SLEEP APPLICATION WITHOUT SUSPEND FUNCTION .................................................... 27FIGURE 6: STAR STRUCTURE OF THE POWER SUPPLY ............................................................................ 29FIGURE 7: REFERENCE CIRCUIT OF POWER SUPPLY .............................................................................. 29FIGURE 8: TURN ON THE MODULE BY DRIVING CIRCUIT.......................................................................... 31FIGURE 9: TURN ON THE MODULE BY KEYSTROKE .................................................................................. 31FIGURE 10: TIMING OF TURNING ON MODULE ........................................................................................... 32FIGURE 11: TIMING OF TURNING OFF MODULE .......................................................................................... 33FIGURE 12: REFERENCE CIRCUIT OF RESET_N ........................................................................................ 34FIGURE 13: TIMING OF RESETTING MODULE ............................................................................................. 35FIGURE 14: CONNECTION OF FULL FUNCTIONAL UART PORT ................................................................ 36FIGURE 15: CONNECTION OF THREE LINES UART PORT ......................................................................... 37FIGURE 16: CONNECTION OF UART PORT WITH HARDWARE FLOW CONTROL .................................... 37FIGURE 17: 3.3V LEVEL MATCH CIRCUIT ..................................................................................................... 38FIGURE 18: 5V LEVEL MATCH CIRCUIT ........................................................................................................ 38FIGURE 19: RS232 LEVEL SHIFT CIRCUIT .................................................................................................... 39FIGURE 20: RI BEHAVIOR ............................................................................................................................... 40FIGURE 21: MICROPHONE REFERENCE DESIGN FOR AIN1&AIN2 ........................................................... 42FIGURE 22: REFERENCE DESIGN FOR AOUT1 ........................................................................................... 43FIGURE 23: REFERENCE DESIGN WITH AN AMPLIFIER FOR AOUT1 ....................................................... 43FIGURE 24: REFERENCE DESIGN FOR AOUT2 ........................................................................................... 44FIGURE 25: REFERENCE DESIGN WITH AN AMPLIFIER FOR AOUT2 ....................................................... 44FIGURE 26: REFERENCE DESIGN FOR AN EARPHONE ............................................................................. 45FIGURE 27: PRIMARY MODE TIMING ............................................................................................................ 46FIGURE 28: AUXILIARY MODE TIMING .......................................................................................................... 47FIGURE 29: REFERENCE CIRCUIT OF PCM APPLICATION WITH AUDIO CODEC .................................... 48FIGURE 30: REFERENCE CIRCUIT OF THE 8-PIN USIM CARD .................................................................. 49FIGURE 31: REFERENCE CIRCUIT OF THE 6-PIN USIM CARD .................................................................. 50FIGURE 32: MOLEX 91228 USIM CARD HOLDER ......................................................................................... 51FIGURE 33: AMPHENOL C707 10M006 512 2 USIM CARD HOLDER ........................................................... 52FIGURE 34: REFERENCE CIRCUIT OF USB APPLICATION ......................................................................... 53FIGURE 35: TEST POINTS OF FIRMWARE UPGRADE ................................................................................. 54FIGURE 36: REFERENCE CIRCUIT OF THE NETWORK INDICATOR .......................................................... 56FIGURE 37: REFERENCE CIRCUIT OF THE STATUS ................................................................................... 57FIGURE 38: REFERENCE CIRCUIT OF ANTENNA INTERFACE ................................................................... 59FIGURE 39: DIMENSIONS OF THE UF.L-R-SMT CONNECTOR (UNIT: MM) ................................................ 60FIGURE 40: MECHANICALS OF UF.L-LP CONNECTORS (UNIT: MM) .......................................................... 60FIGURE 41: SPACE FACTOR OF MATED CONNECTOR (UNIT: MM) ........................................................... 61
UMTS/HSDPA Module Series UC15 Hardware Design UC15_Hardware_Design Confidential / Released 8 / 79 FIGURE 42: UC15 TOP AND SIDE DIMENSIONS ........................................................................................... 67FIGURE 43: UC15 BOTTOM DIMENSIONS (BOTTOM VIEW) ....................................................................... 68FIGURE 44: BOTTOM PADS DIMENSIONS (BOTTOM VIEW) ....................................................................... 68FIGURE 45: RECOMMENDED FOOTPRINT (TOP VIEW) .............................................................................. 69FIGURE 46: TOP VIEW OF THE MODULE ...................................................................................................... 70FIGURE 47: BOTTOM VIEW OF THE MODULE .............................................................................................. 70FIGURE 48: REFLOW SOLDERING PROFILE ................................................................................................ 72FIGURE 49: CARRIER TAPE ............................................................................................................................ 73
UMTS/HSDPA Module Series UC15 Hardware Design UC15_Hardware_Design Confidential / Released 9 / 79 1 Introduction This document defines the UC15 module and describes its hardware interface which are connected with your application and the air interface. This document can help you quickly understand module interface specifications, electrical and mechanical details. Associated with application notes and user guide, you can use UC15 module to design and set up mobile applications easily. 1.1. Safety Information The following safety precautions must be observed during all phases of the operation, such as usage, service or repair of any cellular terminal or mobile incorporating UC15 module. Manufacturers of the cellular terminal should send the following safety information to users and operating personnel and to incorporate these guidelines into all manuals supplied with the product. If not so, Quectel does not take on any liability for customer failure to comply with these precautions. Full attention must be given to driving at all times in order to reduce the risk of an accident. Using a mobile while driving (even with a handsfree kit) cause distraction and can lead to an accident. You must comply with laws and regulations restricting the use of wireless devices while driving. Switch off the cellular terminal or mobile before boarding an aircraft. Make sure it switched off. The operation of wireless appliances in an aircraft is forbidden to prevent interference with communication systems. Consult the airline staff about the use of wireless devices on boarding the aircraft, if your device offers a Airplane Mode which must be enabled prior to boarding an aircraft. Switch off your wireless device when in hospitals or clinics or other health care facilities. These requests are desinged to prevent possible interference with sentitive medical equipment.
UMTS/HSDPA Module Series UC15 Hardware Design UC15_Hardware_Design Confidential / Released 10 / 79 GSM cellular terminals or mobiles operate over radio frequency signal and cellular network and cannot be guaranteed to connect in all conditions, for example no mobile fee or an invalid USIM card. While you are in this condition and need emergent help, please remember using emergency call. In order to make or receive call, the cellular terminal or mobile must be switched on and in a service area with adequate cellular signal strength. Your cellular terminal or mobile contains a transmitter and receiver. When it is ON , it receives and transmits radio frequency energy. RF interference can occur if it is used close to TV set, radio, computer or other electric equipment. In locations with potencially explosive atmospheres, obey all posted signs to turn off wireless devices such as your phone or other cellular terminals. Areas with potencially exposive atmospheres including fuelling areas, below decks on boats, fuel or chemical transfer or storage facilities, areas where the air contains chemicals or particles such as grain, dust or metal powders.
UMTS/HSDPA Module Series UC15 Hardware Design UC15_Hardware_Design Confidential / Released 11 / 79 2 Product Concept 2.1. General Description UC15 is an embedded UMTS/HSDPA module. Its UMTS-based modem provides data connectivity on HSDPA, WCDMA, EDGE and GPRS networks. UC15 offers a maximum data rate of 3.6Mbps on downlink and also supports GPRS/EDGE multi-slot class 12 as well. GPRS supports the coding schemes CS-1, CS-2, CS-3 and CS-4. EDGE supports CS-1 to CS-4 and MCS-1 to MCS-9 coding schemes. UC15 includes two variants, UC15-A and UC15-E. And both of them are divided into Telematics version and Data Only version. Telematics version supports voice and data, while Data Only version only supports data. This is convenient for you to choose the dedicated type based on the wireless network configuration. The following table shows the entire radio band configuration of UC15 series. Table 1: Frequency Bands of UC15 Series More details about GPRS/EDGE multi-slot configuration and coding schemes, please refer to Appendix B, C and D. With a tiny profile of 29.0mm × 29.0mm × 2.5mm, UC15 can meet almost all requirements for M2M application such as automotive, metering, tracking system, security solutions, routers, wireless POS, mobile computing devices, PDA phone and tablet PC, etc. UC15 is an SMD type module, which can be embedded in your application through its 108-pin pads including 68 LCC signal pads and 40 other pads. UC15 is integrated with internet service protocols such as TCP/UDP and PPP. Extended AT commands have been developed for you to use these internet service protocols easily. Module GSM 850 EGSM 900 DCS 1800 PCS 1900 UMTS 850 UMTS 900 UMTS 1900 UMTS 2100 UC15      
UMTS/HSDPA Module Series UC15 Hardware Design UC15_Hardware_Design Confidential / Released 12 / 79 2.2. Directives and Standards The UC15 module is designed to comply with the FCC statements. FCC ID: XMR201404UC15 If the FCC ID of the module cannot be seen by the user in the final installation, the host device must show the statement: “Contains FCC ID: XMR201404UC15” in a visible and permanent location” 2.2.1. FCC Statement 1. This device complies with Part 15 of the FCC rules. Operation is subject to the following conditions: a) This device may not cause harmful interference. b) This device must accept any interference received, including interference that may cause undesired operation. 2. Changes or modifications not expressly approved by the party responsible for compliance could avoid the user’s authority to operate the equipment. 2.2.2. FCC Radiation Exposure Statement This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with minimum distance 20cm between the radiator and your body as well as kept minimum 20cm from radio antenna depending on the Mobile status of this module usage. This module should NOT be installed and operating simultaneously with other radio. The manual of the host system, which uses UC15, must include RF exposure warning statement to advice user should keep minimum 20cm from the radio antenna of UC15 module depending on the Mobile status. Note: If a portable device (such as PDA) uses UC15 module, the device needs to do permissive change and SAR testing.
UMTS/HSDPA Module Series UC15 Hardware Design UC15_Hardware_Design Confidential / Released 13 / 79 2.3. Key Features The following table describes the detailed features of UC15 module. Table 2: UC15 Key Features Feature Details Power Supply Supply voltage: 3.3V~4.3V Typical supply voltage: 3.8V Frequency Bands UC15-A: GSM850/900/1800/1900, UMTS850/1900 Transmission Data HSDPA R5: Max 3.6Mbps (DL) WCDMA R99: Max 384kbps (DL)/Max 384kbps (UL) EDGE: Max 236.8kbps (DL only) GPRS: Max 85.6kbps (DL)/Max 85.6kbps (UL) CSD: 64kbps Transmitting Power Class 4 (33dBm±2dB) for GSM850 Class 1 (30dBm±2dB) for PCS1900 Class E2 (27dBm±3dB) for GSM850 and EGSM900 8-PSK Class E2 (26dBm+3/-4dB) for DCS1800 and PCS1900 8-PSK Class 3 (24dBm+1/-3dB) for UMTS850/1900 HSDPA and WCDMA Features HSDPA data rate is corresponded with 3GPP R5. 3.6Mbps on downlink. WCDMA data rate is corresponded with 3GPP R99/R4. 384kbps on downlink and 384kbps on uplink. Support both 16-QAM and QPSK modulation. GSM/GPRS/EDGE Data Features GPRS: Support GPRS multi-slot class 12 (10 by default) Coding scheme: CS-1, CS-2, CS-3 and CS-4 Maximum of four Rx time slots per frame EDGE: Support EDGE multi-slot class 12 (12 by default). Support GMSK and 8-PSK for different MCS (Modulation and Coding scheme). Downlink coding schemes: CS 1-4 and MCS 1-9. CSD: CSD transmission rates: 64kbps non-transparent. Support Unstructured Supplementary Services Data (USSD).
UMTS/HSDPA Module Series UC15 Hardware Design UC15_Hardware_Design Confidential / Released 14 / 79 Internet Protocol Features Support TCP/PPP/UDP protocols. Support the protocols PAP (Password Authentication Protocol) and CHAP (Challenge Handshake Authentication Protocol) usually used for PPP connections. SMS Text and PDU mode Point to point MO and MT SMS cell broadcast SMS storage: ME by default USIM Interface Support USIM/SIM card: 1.8V, 3.0V Audio Features Support two analog input channels and two analog output channels. GSM: HR/FR/EFR/AMR/AMR-WB WCDMA: AMR/AMR-WB Echo cancellation and noise suppression. PCM Interface* Used for audio function with external codec. Support 16-bit linear data formats. Support long frame sync and short frame sync. Support master and slave mode, but must be the master in long frame sync. UART Interface Seven lines on UART interface. Support RTS and CTS hardware flow control. Baud rate can reach up to 921600bps, 115200bps by default. Used for AT command, data transmission and firmware upgrade. USB Interface Compliant with USB 2.0 specification (slave only), the data transfer rate can reach up to 480 Mbps at high speed mode. Used for AT command communication, data transmission, software debug and firmware upgrade. USB driver: support Windows XP, Windows Vista, Windows 7, Windows 8, Windows CE5.0/6.0, Windows Mobile 6.1/6.5, Linux 2.6 or later, Android 2.3 or later. AT Commands Compliant with 3GPP TS 27.007, 27.005 and Quectel enhanced AT commands. Network Indication Indicate network activity status. Antenna Interface Connected via 50ohm antenna pad. Physical Characteristics Size: 29.0±0.15 × 29.0±0.15 × 2.5±0.2 mm Weight: Approx. 4.3g Temperature Range Normal operation: -35°C ~ +75°C Restricted operation: -40°C ~ -35°C and +75°C ~ +85°C 1) Storage temperature: -45°C ~ +90°C Firmware Upgrade USB interface (by default) and UART interface. RoHS All hardware components are fully compliant with EU RoHS directive.
UMTS/HSDPA Module Series UC15 Hardware Design UC15_Hardware_Design Confidential / Released 15 / 79 1. “1)” means when the module works within this temperature range, RF performance might degrade. For example, the frequency error or the phase error would increase. 2. “*” means this feature is under development. 2.4. Functional Diagram The following figure shows a block diagram of UC15 and illustrates the major functional parts.  Power management unit  Baseband  DDR+NAND flash  Radio frequency  Peripheral interface NOTES
UMTS/HSDPA Module Series UC15 Hardware Design UC15_Hardware_Design Confidential / Released 16 / 79 Figure 1: Functional Diagram 2.5. Evaluation Board In order to help you to develop applications with UC15, Quectel supplies an evaluation board (EVB), RS-232 to USB cable, USB data cable, power adapter, earphone, antenna and other peripherals to control or test the module. For details, please refer to document [2].
UMTS/HSDPA Module Series UC15 Hardware Design UC15_Hardware_Design Confidential / Released 17 / 79 3 Application Interface 3.1. General Description UC15 is equipped with a 68-pin 1.3mm pitch SMT pads plus 40-pin ground pads and reserved pads that connect to cellular application platform. Sub-interfaces included in these pads are described in details in the following chapters:  Power supply  UART interface  Audio interface  PCM interface  USIM interface  USB interface  ADC interface  Indicator interface
UMTS/HSDPA Module Series UC15 Hardware Design UC15_Hardware_Design Confidential / Released 18 / 79 3.2. Pin Assignment The following figure shows the pin assignment of the UC15 module. 3217181920212223242526272829303164636261605958575655545352515049RESET_NPWRKEYAGND*SPK2P*SPK1N*SPK1P*MIC1P*MIC1N*MIC2P*MIC2N*RESERVEDRESERVEDRESERVEDRESERVEDRESERVEDRESERVEDUSB_VBUSUSB_DMUSB_DPRXDTXDDTRRTSCTSDCDRISTATUSVBAT_BBVBAT_BBVBAT_RFVBAT_RFGND Figure 2: Pin Assignment (Top View) 1. Keep all RESERVED pins and unused pins unconnected. 2. GND pads 81~108 should be connected to ground in the design, and RESERVED pads 69~80 should be unconnected. 3. “*” means these functions are only supported in Telematics version. Meanwhile, PCM function is still under development. NOTES
UMTS/HSDPA Module Series UC15 Hardware Design UC15_Hardware_Design Confidential / Released 19 / 79 3.3. Pin Description The pin definition of UC15 is shown in table 4. Table 3: IO Parameters Definition Table 4: Pin Description Type Description IO Bidirectional input/output DI Digital input DO Digital output PI Power input PO Power output AI Analog input AO Analog output Power Supply Pin Name Pin No. I/O Description DC Characteristics Comment VBAT_BB 52,53 PI Power supply for module baseband part. Vmax=4.3V Vmin=3.3V Vnorm=3.8V It must be able to provide sufficient current up to 0.8A. VBAT_RF 50,51 PI Power supply for module RF part. Vmax=4.3V Vmin=3.3V Vnorm=3.8V It must be able to provide sufficient current in a transmitting burst which typically rises to 2.0A. VDD_EXT 7 PO Provide 2.6V for external circuit. Vnorm=2.6V IOmax=100mA It is recommend to add a 2.2~4.7uF bypass capacitor when using this pin for power supply.
UMTS/HSDPA Module Series UC15 Hardware Design UC15_Hardware_Design Confidential / Released 20 / 79 GND 42,44~4965,67~68,81~108 Ground. Turn On/Off Pin Name Pin No. I/O Description DC Characteristics Comment PWRKEY 18 DI Turn on/off the module. RPU≈200kΩ VIHmax=2.1V VIHmin=1.3V VILmax=0.5V Pull-up to 1.8V internally. RESET_N 17 DI Reset the module. VIHmax=2.1V VIHmin=1.3V VILmax=0.5V Pull-up to 1.8V internally. Indication Pin Name Pin No. I/O Description DC Characteristics Comment STATUS 54 DO Indicate the module operating status. VOHmax=2.6V VOHmin=2.15V VOLmax=0.45V 2.6V power domain. NETLIGHT 6 DO Indicate the module network activity status. VOHmax=2.6V VOHmin=2.15V VOLmax=0.45V 2.6V power domain. USB Interface Pin Name Pin No. I/O Description DC Characteristics Comment USB_VBUS 64 PI USB detection. Vmax=5.25V Vmin=3.0V Vnorm=5.0V USB_DP 62 IO USB differential data bus. Compliant with USB 2.0 standard specification. Require differential impedance of 90Ω.USB_DM 63 IO USB differential data bus. Compliant with USB 2.0 standard specification. Require differential impedance of 90Ω.USIM Interface Pin Name Pin No. I/O Description DC Characteristics Comment
UMTS/HSDPA Module Series UC15 Hardware Design UC15_Hardware_Design Confidential / Released 21 / 79 USIM_GND 8 Specified ground for USIM card. USIM_VDD 12 PO Power supply for USIM card. For 1.8V USIM: Vmax=1.95V Vmin=1.65V For 3.0V USIM: Vmax=3.0V Vmin=2.7V Either 1.8V or 3.0V is supported by the module automatically. USIM_DATA 13 IO Data signal of USIM card. For 1.8V USIM: VILmax = 0.6V VIHmin =1.2V VOLmax=0.45V VOHmin=1.35V For 3.0V USIM: VILmax=1.0V VIHmin=1.95V VOLmax=0.45V VOHmin=2.55V Pull-up to USIM_VDD with 10k resistor internally. USIM_CLK 14 DO Clock signal of USIM card. For 1.8V USIM: VOLmax=0.45V VOHmin=1.35V For 3.0V USIM: VOLmax=0.45V VOHmin=2.55V USIM_RST 15 DO Reset signal of USIM card. For 1.8V USIM: VOLmax=0.45V VOHmin=1.35V For 3.0V USIM: VOLmax=0.45V VOHmin=2.55V USIM_ PRESENCE 11 DI USIM card input detection. VILmin=-0.3V VILmax=0.91V VIHmin=1.69V VIHmax=2.9V 2.6V power domain. ADC Interface Pin Name Pin No. I/O Description DC Characteristics Comment
UMTS/HSDPA Module Series UC15 Hardware Design UC15_Hardware_Design Confidential / Released 22 / 79 ADC0 41 AI General purpose analog to digital converter. Voltage range: 0V to 2.1V ADC1 40 AI General purpose analog to digital converter. Voltage range: 0V to 2.1V UART Interface Pin Name Pin No. I/O Description DC Characteristics Comment RI 55 DO Ring indicator. VOLmax=0.45V VOHmin=2.15V 2.6V power domain. DCD 56 DO Data carrier detection. VOLmax=0.45V VOHmin=2.15V 2.6V power domain. CTS 57 DO Clear to send. VOLmax=0.45V VOHmin=2.15V 2.6V power domain. RTS 58 DI Request to send. VILmin=-0.3V VILmax=0.91V VIHmin=1.69V VIHmax=2.9V 2.6V power domain. DTR 59 DI Data terminal ready. VILmin=-0.3V VILmax=0.91V VIHmin=1.69V VIHmax=2.9V 2.6V power domain. Pull-up by default. TXD 60 DO Transmit data. VOLmax=0.45V VOHmin=2.15V 2.6V power domain. RXD 61 DI Receive data. VILmin=-0.3V VILmax=0.91V VIHmin=1.69V VIHmax=2.9V 2.6V power domain. RF Interface Pin Name Pin No. I/O Description DC Characteristics Comment RF_ANT 43 IO RF antenna pad. 50Ω impedance. Analog Audio Interface Pin Name Pin No. I/O Description DC Characteristics Comment MIC1P 23 AI Audio positive input. MIC1N 24 AI Audio negative input.
UMTS/HSDPA Module Series UC15 Hardware Design UC15_Hardware_Design Confidential / Released 23 / 79 MIC2P 25 AI Auxiliary audio positive input. MIC2N 26 AI Auxiliary audio negative input. SPK1P 22 AO Audio positive output. SPK1N 21 AO Audio negative output. SPK2P 20 AO Auxiliary audio positive output. AGND 19 Analog ground. Ground. Separate ground for external audio circuits. PCM Interface Pin Name Pin No. I/O Description DC Characteristics Comment PCM_DOUT 34 DO PCM data output. VOLmax=0.45V VOHmin=2.15V 2.6V power domain. PCM_DIN 35 DI PCM data input. VILmin=-0.3V VILmax=0.91V VIHmin=1.69V VIHmax=2.9V 2.6V power domain. PCM_CLK 36 IO PCM data bit clock. VILmin=-0.3V VILmax=0.91V VIHmin=1.69V VIHmax=2.9V VOLmax=0.45V VOHmin=2.15V 2.6V power domain. PCM_SYNC 37 IO PCM data frame sync signal VOLmax=0.45V VOHmin=2.15V 2.6V power domain. I2C Interface Pin Name Pin No. I/O Description DC Characteristics Comment I2C_SDA 38 IO I2C serial data. VILmin=-0.3V VILmax=0.91V VIHmin=1.69V VIHmax=2.9V VOLmax=0.45V VOHmin=2.15V External pull-up resistor is required. 2.6V only. I2C_SCL 39 DO I2C serial clock. VOLmax=0.45V VOHmin=2.15V External pull-up resistor is required.
UMTS/HSDPA Module Series UC15 Hardware Design UC15_Hardware_Design Confidential / Released 24 / 79 3.4. Operating Modes The table below briefly summarizes the various operating modes. Table 5: Overview of Operating Modes 2.6V only. Other Pins Pin Name Pin No. I/O Description DC Characteristics Comment AP_READY 2 DI Application process or sleep state detection. VILmin=-0.3V VILmax=0.91V VIHmin=1.69V VIHmax=2.9V 2.6V power domain. RESERVED 1,3~5,9~10,16,27~33,66, 69~80 Reserved. Keep these pins unconnected. Mode Details Normal Operation GSM Idle Software is active. The module has registered to the GSM network and is ready to send and receive data. GSM Talk/Data GSM connection is ongoing. In this mode, the power consumption is decided by the configuration of power control level (PCL), dynamic DTX control and the working RF band. GPRS Idle The module is ready for GPRS data transfer, but no data transfer is going on. In this case, power consumption depends on network setting and GPRS configuration. GPRS Data There is GPRS data in transfer (PPP, TCP or UDP). In this mode, power consumption is decided by the PCL, working RF band and GPRS multi-slot configuration. EDGE Idle The module is ready for data transfer in EDGE mode, but no data is currently sent or received. In this case, power consumption depends on network settings and EDGE configuration. EDGE Data There is EDGE data in transfer (PPP, TCP or UDP). In this mode, power consumption is decided by the PCL, working RF band and EDGE multi-slot configuration.
UMTS/HSDPA Module Series UC15 Hardware Design UC15_Hardware_Design Confidential / Released 25 / 79 3.5. Power Saving 3.5.1. Sleep Mode UC15 is able to reduce its current consumption to a minimum value during the sleep mode. The following section describes power saving procedure of UC15. 3.5.1.1. UART Application If application processor communicates with module via UART interface, the following preconditions can let the module enter into the sleep mode.  Execute AT command AT+QSCLK=1 to enable the sleep mode.  Drive DTR to high level. The following figure shows the connection between the module and application processor. UMTS Idle Software is active. The module has registered to the UMTS network and the module is ready to send and receive data. UMTS Tal k/D at a UMTS connection is ongoing. In this mode, the power consumption is decided by network setting (e.g. TPC pattern) and data transfer rate. HSDPA Idle Software is active. The module has registered to the HSDPA network and the module is ready to send and receive data. HSDPA Data HSDPA data transfer is ongoing. In this mode, the power consumption is decided by network setting (e.g. TPC pattern) and data transfer rate. Minimum Functionality Mode AT+CFUN=0 command can set the module entering into a minimum functionality mode without removing the power supply. In this case, both RF function and USIM card will be invalid. Sleep Mode In this mode, the current consumption of the module will be reduced to the minimal level. During this mode, the module can still receive paging message, SMS, voice call and TCP/UDP data from the network normally. Any URC can be output even the module in Sleep Mode. Power Down Mode In this mode, the power management unit shuts down the power supply for the baseband part and RF part. Software is not active. The serial interface is not accessible. Operating voltage (connected to VBAT_RF and VBAT_BB) remains applied.
UMTS/HSDPA Module Series UC15 Hardware Design UC15_Hardware_Design Confidential / Released 26 / 79 Figure 3: UART Sleep Application The RI of module is used to wake up the processor, and AP_READY will detect the sleep state of processor (can be configured to high level or low level detection). You should pay attention to the level match shown in dotted line between module and processor. Drive DTR to low level will wake up the module. 3.5.1.2. USB Application with Suspend Function If application processor communicates with module via USB interface, and processor supports USB suspend function, following preconditions can let the module enter into the sleep mode.  Execute AT command AT+QSCLK=1 to enable the sleep mode.  The processor’s USB bus which is connected with the module USB interface enters into suspended state. The following figure shows the connection between the module and processor. Figure 4: USB Application with Suspend Function
UMTS/HSDPA Module Series UC15 Hardware Design UC15_Hardware_Design Confidential / Released 27 / 79 When the processor’s USB bus returns to resume state, the module will be woken up. 3.5.1.3. USB Application without Suspend Function If application processor communicates with module via USB interface, and processor does not support USB suspend function, you should disconnect USB_VBUS with additional control circuit to let the module enter into sleep mode.  Execute AT command AT+QSCLK=1 to enable the sleep mode.  Disconnect USB_VBUS. The following figure shows the connection between the module and application processor. Figure 5: USB Sleep Application without Suspend Function Supply power to USB_VBUS will wake up the module. In sleep mode, the module can still receive paging message, SMS, voice call and TCP/UDP data from the network normally, but the UART port is not accessible. 3.5.2. Minimum Functionality Mode Minimum functionality mode reduces the functionality of the module to minimum level, thus minimizes the current consumption at the same time. This mode can be set as below: Command AT+CFUN provides the choice of the functionality levels: <fun>=0, 1, 4.  AT+CFUN=0: Minimum functionality, RF part and USIM card will be closed.  AT+CFUN=1: Full functionality (by default).
UMTS/HSDPA Module Series UC15 Hardware Design UC15_Hardware_Design Confidential / Released 28 / 79  AT+CFUN=4: Disable RF function (airplane mode). All AT commands related to RF function are not accessible. For detailed information about command AT+CFUN, please refer to document [1]. 3.6. Power Supply 3.6.1. Power Supply Pins UC15 provides four VBAT pins to connect with the external power supply. There are two separate voltage domains for VBAT.  VBAT_RF with two pads for module RF.  VBAT_BB with two pads for module baseband. The following table shows the VBAT pins and ground pins. Table 6: VBAT and GND Pin 3.6.2. Decrease Voltage Drop The power supply range of the module is 3.3~4.3V. Because of the voltage drop during the transmitting time, a bypass capacitor of about 100µF with low ESR should be used. Multi-layer ceramic chip (MLCC) capacitor can provide the best combination of low ESR. Three ceramic capacitors (100nF, 33pF, 10pF) are recommended to be applied to the VBAT pins. The capacitors should be placed close to the VBAT pins of UC15. The following figure shows star structure of the power supply. The main power supply from an external application should be a single voltage source and has to be expanded to two sub paths with star structure. In addition, in order to get a stable power source, it is suggested to use a zener diode of which reverse zener voltage is 5.1V and dissipation power is more than 0.5W. Pin Name Pin No. Description Min. Typ. Max. Unit VBAT_RF 50,51 Power supply for module RF. 3.3 3.8 4.3 V VBAT_BB 52,53 Power supply for module baseband. 3.3 3.8 4.3 V GND 42,44~49,65, 67~68,81~108 Ground. - - - -
UMTS/HSDPA Module Series UC15 Hardware Design UC15_Hardware_Design Confidential / Released 29 / 79 Figure 6: Star Structure of the Power Supply Please pay special attention to the power supply design for applications. Make sure the input voltage will never drop below 3.3V. If the voltage drops below 3.3V, the module will turn off automatically. The PCB traces from the VBAT pins to the power source must be wide enough to ensure that there is not too much voltage drop occurs in the transmitting procedure. The width of VBAT_BB trace should be no less than 1mm, and the width of VBAT_RF trace should be no less than 2mm, and the principle of the VBAT trace is the longer, the wider. 3.6.3. Reference Design for Power Supply The power design for the module is very important, since the performance of power supply for the module largely depends on the power source. The power supply is capable of providing the sufficient current up to 2A at least. If the voltage drop between the input and output is not too high, it is suggested to use a LDO to supply power for module. If there is a big voltage difference between the input source and the desired output (VBAT), a buck converter is preferred to be used as a power supply. The following figure shows a reference design for +5V input power source. The designed output for the power supply is 3.88V and the maximum load current is 3A. Figure 7: Reference Circuit of Power Supply
UMTS/HSDPA Module Series UC15 Hardware Design UC15_Hardware_Design Confidential / Released 30 / 79 3.6.4. Monitor the Power Supply You can use the AT+CBC command to monitor the VBAT_BB voltage value. For more details, please refer to document [1]. 3.6.5. VDD_EXT UC15 has a LDO power output, named VDD_EXT. The VDD_EXT is available and output voltage is 2.6V by default, rated at 100mA. The following table shows electrical characteristics of VDD_EXT. Table 7: Electrical Characteristics of VDD_EXT 3.7. Turn on and off Scenarios 3.7.1. Turn on Module by PWRKEY Pin The following table shows the pin definition of PWRKEY. Table 8: PWRKEY Pin Description Symbol Description Min. Typ. Max. Unit VDD_EXT Output voltage 2.5 2.6 2.7 V IOUT Output current - - 100 mA Pin Name Pin No. Description DC Characteristics Comment PWRKEY 18 Turn on/off the module. VIHmax=2.1V VIHmin=1.3V VILmax=0.5V Pull-up to 1.8V internally with 200kΩ resistor.
UMTS/HSDPA Module Series UC15 Hardware Design UC15_Hardware_Design Confidential / Released 31 / 79 When UC15 is in power down mode, it can be turned on to normal mode by driving the PWRKEY pin to low level at least 0.1s. It is recommended to use an open collector driver to control the PWRKEY. You can monitor the level of the STATUS pin to judge whether the module is turned on or not. After STATUS pin outputting a high level, module is turned on. A simple reference circuit is illustrated in the following figure. Figure 8: Turn on the Module by Driving Circuit The other way to control the PWRKEY is to use a button directly. A TVS component is indispensable to be placed nearby the button for ESD protection. When pressing the key, electrostatic strike may generate from finger. A reference circuit is shown in the following figure. Figure 9: Turn on the Module by Keystroke
UMTS/HSDPA Module Series UC15 Hardware Design UC15_Hardware_Design Confidential / Released 32 / 79 The turn on scenarios is illustrated as the following figure. Figure 10: Timing of Turning on Module ① Make sure that VBAT is stable before pulling down PWRKEY pin. The time between them is recommended to be more than 0.03s. 3.7.2. Turn off Module The following procedures can be used to turn off the module:  Normal power down procedure: Turn off the module by PWRKEY pin.  Normal power down procedure: Turn off the module by command AT+QPOWD.  Automatic shutdown: Turn off the module automatically if under-voltage or over-voltage is detected. 3.7.2.1. Turn off Module by PWRKEY Pin Drive the PWRKEY to low level at least 0.6s, the module will execute power-down procedure after PWRKEY is released. The power-down scenario is illustrated as the following figure. NOTE
UMTS/HSDPA Module Series UC15 Hardware Design UC15_Hardware_Design Confidential / Released 33 / 79 Figure 11: Timing of Turning off Module During power-down procedure, module will send out URC “NORMAL POWER DOWN” via URC port first, then log off network and save important data. After logging off, module sends out “POWERED DOWN” and shuts down the internal power supply. The power on VBAT pins are not allowed to be switched off before the URC “POWERED DOWN” is output to avoid data loss. If module is not logged off within 60s, module will force to shut down internal power supply. After that moment, the module enters into power down mode, no other AT commands can be executed. The power down mode can also be indicated by the STATUS pin. 3.7.2.2. Turn off Module by AT Command It is also a safe way to use AT command AT+QPOWD to turn off the module, which is similar to the way of turning off the module via PWRKEY Pin. Please refer to document [1] for details about the AT command of AT+QPOWD. 3.7.2.3. Automatic Shutdown The module will constantly monitor the voltage applied on the VBAT_BB, if the voltage ≤ 3.5V, the following URC will be presented: +QIND: “vbatt”,-1 If the voltage ≥ 4.21V, the following URC will be presented: +QIND: “vbatt”,1 The uncritical voltage is 3.3V to 4.3V, If the voltage > 4.35V or < 3.2V, the module would automatically shut down itself.
UMTS/HSDPA Module Series UC15 Hardware Design UC15_Hardware_Design Confidential / Released 34 / 79 If the voltage < 3.2V, the following URC will be presented: +QIND: “vbatt”,-2 If the voltage > 4.35V, the following URC will be presented: +QIND: “vbatt”,2 The value of voltage threshold can be revised by AT command AT+QCFG=“vbatt”, refer to document [1] for details. 3.8. Reset the Module The RESET_N can be used to reset the module. Table 9: RESET_N Pin Description You can reset the module by driving the RESET_N to low level voltage for 0.05~0.2s and then releasing. A reference circuit is shown in the following figure. Figure 12: Reference Circuit of RESET_N Pin Name Pin No. Description DC Characteristics Comment RESET_N 17 Reset the module. VIHmax=2.1V VIHmin=1.3V VILmax=0.5V Pull-up to 1.8V internally. NOTE
UMTS/HSDPA Module Series UC15 Hardware Design UC15_Hardware_Design Confidential / Released 35 / 79 The reset scenario is illustrated as the following figure. Figure 13: Timing of Resetting Module The low-level pulse through the RESET_N pin cannot last for more than 0.2s, otherwise the module will be powered off. 3.9. UART Interface The module provides one 7-wire UART interface, and is designed as the DCE (Data Communication Equipment), following the traditional DCE-DTE (Data Terminal Equipment) connection. UART interface supports 300, 600, 1200, 2400, 4800, 9600, 19200, 38400, 57600, 115200, 230400, 460800 and 921600bps baud rate. The default is 115200bps, while autobauding is not supported. This interface can be used for data transmission, AT communication and firmware upgrade. Table 10: Pin Definition of the UART Interface Pin Name Pin No. I/O Description Comment RI 55 DO Ring indicator. 2.6V power domain. DCD 56 DO Data carrier detection. 2.6V power domain. NOTE
UMTS/HSDPA Module Series UC15 Hardware Design UC15_Hardware_Design Confidential / Released 36 / 79 The logic levels are described in the following table. Table 11: Logic Levels of Digital I/O 3.9.1. The Connection of UART The connection between module and host via UART port is very flexible. Three connection ways are illustrated as below. UART port connection is shown as below when it is applied in modulation-demodulation. Figure 14: Connection of Full Functional UART Port CTS 57 DO Clear to send. 2.6V power domain. RTS 58 DI Request to send. 2.6V power domain. DTR 59 DI Data terminal ready. 2.6V power domain. TXD 60 DO Transmit data. 2.6V power domain. RXD 61 DI Receive data. 2.6V power domain. Parameter Min. Max. Unit VIL -0.3 0.91 V VIH 1.69 2.9 V VOL 0 0.45 V VOH 2.15 2.6 V
UMTS/HSDPA Module Series UC15 Hardware Design UC15_Hardware_Design Confidential / Released 37 / 79 Three lines connection is shown as below. Figure 15: Connection of Three Lines UART Port UART port with hardware flow control is shown as below. This connection will enhance the reliability of the mass data communication. Figure 16: Connection of UART Port with Hardware Flow Control The module disables the hardware flow control by default. AT command AT+IFC=2,2 is used to enable hardware flow control. AT command AT+IFC=0,0 is used to disable the hardware flow control. For more details, please refer to document [1]. NOTE
UMTS/HSDPA Module Series UC15 Hardware Design UC15_Hardware_Design Confidential / Released 38 / 79 3.9.2. UART Application The reference design of 3.3V level match is shown as below. When the peripheral MCU/ARM system is 3V, the divider resistor should be changed from 3.6K to 6.8K. Figure 17: 3.3V Level Match Circuit The reference design of 5V level match is shown as below. The construction of dotted line can refer to the construction of solid line. Please pay attention to direction of connection. Input dotted line of module should refer to input solid line of the module. Output dotted line of module should refer to output solid line of the module. Figure 18: 5V Level Match Circuit
UMTS/HSDPA Module Series UC15 Hardware Design UC15_Hardware_Design Confidential / Released 39 / 79 The following figure is an example of connection between module and PC. A RS232 level shifter IC or circuit must be inserted between module and PC, since UART interface do not support the RS232 level, while support the CMOS level only. Figure 19: RS232 Level Shift Circuit 1. Rising edge on DTR will let the module exit from the data mode by default. It can be disabled by command. Refer to document [1] about AT&D and AT&V for details. 2. DCD is used as data mode indication. Please refer to document [1] about command AT&C and AT&V for details. 3.10. Behavior of the RI You can use command AT+QCFG=“risignaltype”, “physical” to configure RI behavior: No matter which port URC is presented on, URC will trigger the behavior on RI pin. NOTES
UMTS/HSDPA Module Series UC15 Hardware Design UC15_Hardware_Design Confidential / Released 40 / 79 URC can be output from UART port, USB AT port and USB modem port by command AT+QURCCFG. The default port is USB AT port. In additional, RI behavior can be configured flexible. The default behavior of the RI is shown as below. Table 12: Behavior of the RI Figure 20: RI Behavior The RI behavior can be changed by command AT+QCFG=“urc/ri/ring”, refer to document [1] for details. 3.11. Analog Audio Interface The module provides two analog input channels and two analog output channels. Table 13: Pin Definition of the Audio Interface State Response Idle RI keeps in high level. URC RI outputs 120ms low pulse when new URC is reported. Interface Pin Name Pin No. I/O Description Comment AIN1/ MIC1P 23 AI Audio positive input. If it is unused, keep open. NOTE
UMTS/HSDPA Module Series UC15 Hardware Design UC15_Hardware_Design Confidential / Released 41 / 79  AIN1 and AIN2 may be used for both microphone and line inputs. An electret microphone is usually recommended. AIN1 and AIN2 are both differential input channels.  AOUT1 and AOUT2 may be used for both receiver and speaker outputs. AOUT1 channel is typically used for a receiver, while AOUT2 channel is typically used for headset or speaker. AOUT1 channel is a differential channel and AOUT2 is a single-ended channel. SPK2P and AGND can establish a pseudo differential mode. Both AOUT1 and AOUT2 support voice and ringtone output, and so on.  These two audio channels can be swapped by AT+QAUDPATH command. For more details, please refer to document [1]. Use command AT+QAUDPATH to select audio channel: 0: AIN1/AOUT1 (normal audio channel), the default value is 0. 1: AIN2/AOUT2 (auxiliary audio channel). 2: PCM channel. For each channel, you can use AT+QMIC to adjust the input gain level of microphone. You can also use AT+CLVL to adjust the output gain level of receiver and speaker. AT+QSIDET is to set the side-tone gain level. For more details, please refer to document [1]. 3.11.1. Decrease TDD Noise and Other Noise The 33pF capacitor is applied for filtering out 900MHz RF interference when the module is transmitting at GSM900/EGSM900MHz. TDD noise could be heard without this capacitor. Moreover, the 10pF capacitor here is for filtering out 1800/1900MHz RF interference. However, the self-resonant frequency point of a capacitor largely depends on the material and production technique. Therefore, customer should depend on its capacitor vendor to choose the most suitable capacitor for filtering out GSM850MHz and PCS1900MHz separately. AOUT1 MIC1N 24 AI Audio negative input. If it is unused, keep open. SPK1P 22 AO Audio positive output. If it is unused, keep open. SPK1N 21 AO Audio negative output. If it is unused, keep open. AIN2/ AOUT2 MIC2P 25 AI Auxiliary audio positive input. If it is unused, keep open. MIC2N 26 AI Auxiliary audio negative input. If it is unused, keep open. SPK2P 20 AO Auxiliary audio positive output. If it is unused, keep open. AGND 19 Analog ground. Suggested to be used for audio circuit.
UMTS/HSDPA Module Series UC15 Hardware Design UC15_Hardware_Design Confidential / Released 42 / 79 The severity degree of the RF interference in the voice channel during GSM transmitting period largely depends on the application design. In some cases, GSM850 TDD noise is more severe; while in other cases, PCS1900 TDD noise is more obvious. Therefore, customer can have a choice based on test results. Sometimes, even no RF filtering capacitor is required. The capacitor which is used for filtering out RF noise should be close to audio interface. Audio alignment should be as short as possible. In order to decrease radio or other signal interference, the position of RF antenna should be kept away from audio interface and audio alignment. Power alignment and audio alignment should not be parallel, and power alignment should be far away from audio alignment. The differential audio traces should be placed according to the differential signal layout rules. 3.11.2. Microphone Interfaces Application AIN1/AIN2 channels come with internal bias supply for external electret microphone. A reference circuit is shown in the following figure. Figure 21: Microphone Reference Design for AIN1&AIN2
UMTS/HSDPA Module Series UC15 Hardware Design UC15_Hardware_Design Confidential / Released 43 / 79 3.11.3. Receiver and Speaker Interface Application Figure 22: Reference Design for AOUT1 SPK1PSPK1NDifferential layoutAmplifier circuitModule10pF 0603Close to speakerGND33pF 060333pF 0603GND10pF 060310pF 060333pF 0603 Figure 23: Reference Design with an Amplifier for AOUT1 Texas Instruments TPA6205A1 is recommended for a suitable differential audio amplifier. There are plenty of excellent audio amplifiers in the market.
UMTS/HSDPA Module Series UC15 Hardware Design UC15_Hardware_Design Confidential / Released 44 / 79 Figure 24: Reference Design for AOUT2 ModuleSPK2PAGNDDifferential layoutAmplifier circuit10pF 0603Close to speakerGNDC2C133pF 060333pF 0603GND10pF 0603 Figure 25: Reference Design with an Amplifier for AOUT2 The value of C1 and C2 depends on the input impedance of audio amplifier. NOTE
UMTS/HSDPA Module Series UC15 Hardware Design UC15_Hardware_Design Confidential / Released 45 / 79 3.11.4. Earphone Interface Application Figure 26: Reference Design for an Earphone Table 14: Microphone Characteristics Table 15: Speaker Characteristics Parameter Min. Typ. Max. Unit Working Voltage 1.65 1.8 1.95 V Working Current 20 1000 uA Parameter Min. Typ. Max. Unit Normal Output (AOUT1) Differential Supply voltage 2.0 2.1 2.2 V Load resistance 25.6 32 ohm Auxiliary Output (AOUT2) Single ended Supply voltage 2.0 2.1 2.2 V Load resistance 12 16 ohm Output Power of AOUT1 and AOUT2 50 mW
UMTS/HSDPA Module Series UC15 Hardware Design UC15_Hardware_Design Confidential / Released 46 / 79 3.12. PCM and I2C Interface UC15 provides one Pulse Code Modulation (PCM) digital interface for audio design with 16-bit linear data formats, which supports the following modes:  Primary mode (short sync, works as both master and slave)  Auxiliary mode (long sync, works as master only) UC15 supports an 8 kHz short sync mode at 2048 kHz, the data is sampled on the falling edge of the PCM_CLK and transmitted on the rising edge, and the PCM_SYNC falling edge represents the MSB. UC15 also supports an 8 kHz long sync mode at 128 kHz, the data is sampled on the falling edge of the PCM_CLK and transmitted on the rising edge, and the PCM_SYNC rising edge represents the MSB. The following figures show the different timing relationships of these modes. Figure 27: Primary Mode Timing
UMTS/HSDPA Module Series UC15 Hardware Design UC15_Hardware_Design Confidential / Released 47 / 79 Figure 28: Auxiliary Mode Timing The following table shows the pin definition of PCM and I2C interface which can be applied on audio codec design. Table 16: Pin Definition of PCM and I2C Interface UC15’s firmware has integrated the configuration on NAU8814 application with I2C interface. The default configuration is master mode which uses short sync data format with 2048 kHz clock. Please refer to document [1] for details about the command AT+QDAI. Pin Name Pin No. I/O Description Comment PCM_DOUT 34 DO PCM data output. 2.6V power domain PCM_DIN 35 DI PCM data input. 2.6V power domain PCM_CLK 36 IO PCM data bit clock. 2.6V power domain PCM_SYNC 37 IO PCM data frame sync signal 2.6V power domain I2C_SDA 38 IO I2C serial data. External pull-up resistor is required. 2.6V only. I2C_SCL 39 DO I2C serial clock. External pull-up resistor is required. 2.6V only.
UMTS/HSDPA Module Series UC15 Hardware Design UC15_Hardware_Design Confidential / Released 48 / 79 The following figure shows the reference design of PCM interface with external codec IC. Figure 29: Reference Circuit of PCM Application with Audio Codec 1. It is recommended to reserve RC (R=22Ω, C=22pF) circuit on the PCM lines, especially for PCM_CLK. 2. I2C bus is the standard interface, which is used with NAU8814 application by default. 3. The PCM feature is under development. 3.13. USIM Card Interface 3.13.1. USIM Card Application The USIM card interface circuitry meets ETSI and IMT-2000 USIM interface requirements. Both 1.8V and 3.0V USIM cards are supported. Table 17: Pin Definition of the USIM Interfaces Pin Name Pin No. I/O Description Comment USIM_VDD 12 PO Power supply for USIM card. Either 1.8V or 3.0V is supported by the module automatically. USIM_DATA 13 IO Data signal of USIM card. NOTES
UMTS/HSDPA Module Series UC15 Hardware Design UC15_Hardware_Design Confidential / Released 49 / 79 The following figure shows the reference design of the 8-pin USIM card. ModuleUSIM_VDDUSIM_GNDUSIM_RSTUSIM_CLKUSIM_DATAUSIM_PRESENCE22R22R22RVDD_EXT51K100nF USIM holderGNDGNDESDA6V8AV633pF 33pF 33pFVCCRSTCLK IOVPPGNDGNDUSIM_VDD15K Figure 30: Reference Circuit of the 8-Pin USIM Card Some AT commands are invalid when USIM card is not applied. UC15 supports USIM card hot-plugging via the USIM_PRESENCE pin. For details, refer to document [1] about the command AT+QSIMDET. If you do not need the USIM card detection function, keep USIM_PRESENCE unconnected. The reference circuit for using a 6-pin USIM card holder is illustrated as the following figure. USIM_CLK 14 DO Clock signal of USIM card. USIM_RST 15 DO Reset signal of USIM card. USIM_ PRESENCE 11 DI USIM card detection input. 2.6V power domain USIM_GND 8 Specified ground for USIM card. NOTE
UMTS/HSDPA Module Series UC15 Hardware Design UC15_Hardware_Design Confidential / Released 50 / 79 Figure 31: Reference Circuit of the 6-Pin USIM Card In order to enhance the reliability and availability of the USIM card in customer’s application, please follow the following criterion in the USIM circuit design:  Keep layout of USIM card as close as possible to the module. Assure the possibility of the length of the trace is less than 200mm.  Keep USIM card signal away from RF and VBAT alignment.  Assure the ground between module and USIM cassette short and wide. Keep the width of ground and USIM_VDD no less than 0.5mm to maintain the same electric potential. The decouple capacitor of USIM_VDD should be less than 1uF and must be near to USIM cassette.  To avoid cross-talk between USIM_DATA and USIM_CLK, keep them away with each other and shield them with surrounded ground.  In order to offer good ESD protection, it is recommended to add TVS such as WILL (http://www.willsemi.com) ESDA6V8AV6. The capacitance of ESD component is less than 50pF. The 22Ω resistors should be added in series between the module and the USIM card so as to suppress the EMI spurious transmission and enhance the ESD protection. The 33pF capacitors are used for filtering interference of EGSM900. Please note that the USIM peripheral circuit should be close to the USIM card holder.  The pull-up resistor on USIM_DATA line can improve anti-jamming capability when long layout trace and sensitive occasion is applied. 3.13.2. Design Considerations for USIM Card Holder For 8-pin USIM card holder, it is recommended to use Molex 91228. Please visit http://www.molex.com for more information.
UMTS/HSDPA Module Series UC15 Hardware Design UC15_Hardware_Design Confidential / Released 51 / 79 Figure 32: Molex 91228 USIM Card Holder Table 18: Pin Description of Molex USIM Card Holder For 6-pin USIM card holder, it is recommended to use Amphenol C707 10M006 512 2. Please visit http://www.amphenol.com for more information. Name Pin Function VDD C1 USIM card power supply RST C2 USIM card reset CLK C3 USIM card clock / C4 Not defined GND C5 Ground VPP C6 Not connected DATA I/O C7 USIM card data / C8 Pull-down GND with external circuit. When the tray is present, C4 is connected to C8.
UMTS/HSDPA Module Series UC15 Hardware Design UC15_Hardware_Design Confidential / Released 52 / 79 Figure 33: Amphenol C707 10M006 512 2 USIM Card Holder Table 19: Pin Description of Amphenol USIM Card Holder Name Pin Function VDD C1 USIM card power supply RST C2 USIM card reset CLK C3 USIM card clock GND C5 Ground VPP C6 Not connected DATA I/O C7 USIM card data
UMTS/HSDPA Module Series UC15 Hardware Design UC15_Hardware_Design Confidential / Released 53 / 79 3.14. USB Interface UC15 contains one integrated Universal Serial Bus (USB) transceiver which complies with the USB 2.0 specification and supports high speed (480Mbps), full speed (12Mbps) and low speed (1.5Mbps) mode. The USB interface is primarily used for AT command, data transmission, software debug and firmware upgrade. The following table shows the pin definition of USB interface. Table 20: USB Pin Description More details about the USB 2.0 specifications, please visit http://www.usb.org/home. The following figure shows the reference circuit of USB interface. Figure 34: Reference Circuit of USB Application In order to ensure the USB interface design corresponding with the USB 2.0 specification, please comply with the following principles.  It is important to route the USB signal traces as differential pairs with total grounding. The impedance of USB differential trace is 90ohm. Pin Name Pin No. I/O Description Comment USB_DP 62 IO USB differential data bus (positive). Require differential impedance of 90Ω. USB_DM 63 IO USB differential data bus (negative). Require differential impedance of 90Ω. USB_VBUS 64 PI USB detection. 3.0~5.25V. Typical 5.0V.
UMTS/HSDPA Module Series UC15 Hardware Design UC15_Hardware_Design Confidential / Released 54 / 79  Keep the ESD components as closer to the USB connector as possible.  Pay attention to the influence of junction capacitance of ESD component on USB data lines. Typically, the capacitance value should be less than 2pF such as ESD9L5.0ST5G.  Do not route signal traces under crystals, oscillators, magnetic devices and RF signal traces. It is important to route the USB differential traces in inner-layer with ground shielding not only upper and lower layer but also right and left side. UC15 module can only be used as a slave device. The USB interface is recommended to be reserved for firmware upgrade in your design. The following figure shows the recommended test points. Figure 35: Test Points of Firmware Upgrade 3.15. ADC Function The module provides two analog-to-digital converters (ADC) to digitize the analog signal to 12-bit digital data. Using AT command AT+QADC=0 can read the voltage value on ADC0 pin. Using AT command AT+QADC=1 can read the voltage value on ADC1 pin. For more details of these AT commands, please refer to document [1]. In order to improve the accuracy of ADC, the trace of ADC should be surrounded by ground. NOTE
UMTS/HSDPA Module Series UC15 Hardware Design UC15_Hardware_Design Confidential / Released 55 / 79 Table 21: Pin Definition of the ADC The following table describes the characteristics of the ADC function. Table 22: Characteristics of the ADC 3.16. Network Status Indication The module provides a pin named NETLIGHT to indicate the module network status which can be used to drive a LED. The following tables describe pin definition and logic level changes in different network status. Table 23: Pin Definition of Network Indicator Table 24: Working State of the Network Indicator Pin Name Pin NO. Description ADC0 41 General purpose analog to digital converter. ADC1 40 General purpose analog to digital converter. Parameter Min. Typ. Max. Unit ADC0 Voltage Range 0 2.1 V ADC1 Voltage Range 0 2.1 V Sample Rate 2.4 MHz ADC Resolution 12 bits Pin Name Pin No. I/O Description Comment NETLIGHT 6 DO Indicate the module network activity status. 2.6V power domain. Pin Name Status Description NETLIGHT 200ms High/1800ms Low. Network searching. 1800ms High/200ms Low. Idle.
UMTS/HSDPA Module Series UC15 Hardware Design UC15_Hardware_Design Confidential / Released 56 / 79 A reference circuit is shown in the following figure. Figure 36: Reference Circuit of the Network Indicator 3.17. Operating Status Indication The STATUS is used to indicate the module operation status. When the module is turned on normally, the STATUS will output high level. Table 25: Pin Definition of STATUS 125ms High/125ms Low. Data transfer is ongoing. Always High. Voice calling. Always Low. Sleep. Pin Name Pin No. I/O Description Comment STATUS 54 DO Indicate the module operation status. 2.6V power domain.
UMTS/HSDPA Module Series UC15 Hardware Design UC15_Hardware_Design Confidential / Released 57 / 79 A reference circuit is shown in the following figure. Figure 37: Reference Circuit of the STATUS
UMTS/HSDPA Module Series UC15 Hardware Design UC15_Hardware_Design Confidential / Released 58 / 79 4 Antenna Interface 4.1. Antenna Interface 4.1.1. Pin Definition Pin definition of RF antenna is shown as below. Table 26: Pin Definition of the RF Antenna 4.1.2. Operating Frequency Table 27: Module Operating Frequencies 4.1.3. Reference Design The RF interface has an impedance of 50Ω.The reference design of RF antenna is shown as below. It should reserve a π-type matching circuit for better RF performance. The capacitors are not mounted by default. Pin Name Pin No. I/O Description Comment RF_ANT 43 IO RF antenna pad 50Ω impedance Band Receive Transmit Unit GSM850 869 ~ 894 824 ~ 849 MHz PCS1900 1930 ~ 1990 1850 ~ 1910 MHz UMTS1900 1930 ~ 1990 1850 ~ 1910 MHz UMTS850 869 ~ 894 824 ~ 849 MHz
UMTS/HSDPA Module Series UC15 Hardware Design UC15_Hardware_Design Confidential / Released 59 / 79 Figure 38: Reference Circuit of Antenna Interface 4.2. Antenna Installation 4.2.1. Antenna Requirement The following table shows the requirements on GSM/UMTS antenna. Table 28: Antenna Requirements 4.2.2. Install the Antenna with RF Connector The following is the antenna installation with RF connector provided by HIROSE. The recommended RF connector is UF.L-R-SMT. Type Requirements GSM850 UMTS850 Cable insertion loss < 0.5dB. PCS1900 UMTS1900 Cable insertion loss < 0.9dB.
UMTS/HSDPA Module Series UC15 Hardware Design UC15_Hardware_Design Confidential / Released 60 / 79 Figure 39: Dimensions of the UF.L-R-SMT Connector (Unit: mm) You can use U.FL-LP serial connector listed in the following figure to match the UF.L-R-SMT. Figure 40: Mechanicals of UF.L-LP Connectors (Unit: mm)
UMTS/HSDPA Module Series UC15 Hardware Design UC15_Hardware_Design Confidential / Released 61 / 79 The following figure describes the space factor of mated connector: Figure 41: Space Factor of Mated Connector (Unit: mm) For more details, please visit http://www.hirose.com.
UMTS/HSDPA Module Series UC15 Hardware Design UC15_Hardware_Design Confidential / Released 62 / 79 5 Electrical, Reliability and Radio Characteristics 5.1. Absolute Maximum Ratings Absolute maximum ratings for power supply and voltage on digital and analog pins of module are listed in the following table: Table 29: Absolute Maximum Ratings Parameter Min. Max. Unit VBAT_RF/VBAT_BB -0.5 4.7 V USB_VBUS -0.5 6.0 V Peak Current of VBAT_BB 0 0.8 A Peak Current of VBAT_RF 0 1.8 A Voltage at Digital Pins (1.8V digital I/O) -0.3 2.1 V Voltage at Digital Pins (2.6V digital I/O) -0.3 2.9 V Voltage at ADC0 0 2.2 V Voltage at ADC1 0 2.2 V
UMTS/HSDPA Module Series UC15 Hardware Design UC15_Hardware_Design Confidential / Released 63 / 79 5.2. Power Supply Ratings Table 30: The Module Power Supply Ratings 5.3. Operating Temperature The operating temperature is listed in the following table. Table 31: Operating Temperature “1)” When the module works within the temperature range, the deviations from the RF specification may occur. For example, the frequency error or the phase error would increase. Parameter Description Conditions Min. Typ. Max. Unit VBAT VBAT_BB and VBAT_RF Voltage must stay within the min/max values, including voltage drop, ripple, and spikes. 3.3 3.8 4.3 V Voltage drop during transmitting burst Maximum power control level on GSM850 400 mV IVBAT Peak supply current (during transmission slot) Maximum power control level on GSM850 1.8 2.0 A USB_VBUS USB detection 3.0 5.0 5.25 V Parameter Min. Typ. Max. Unit Normal Temperature -35 +25 +75 ºC Restricted Operation1) -40 ~ -35 +75 ~ +85 ºC Storage Temperature -45 +90 ºC NOTE
UMTS/HSDPA Module Series UC15 Hardware Design UC15_Hardware_Design Confidential / Released 64 / 79 5.4. Current Consumption The values of current consumption are shown below. Table 32: Module Current Consumption Parameter Description Conditions Typ. Unit IVBAT GSM/GPRS supply current Sleep (USB disconnected) 3.6 @DRX=2 2.5 @DRX=5 2.2 @DRX=9 mA Sleep (USB suspended) 3.8 @DRX=2 2.7 @DRX=5 2.4 @DRX=9 mA Idle (USB disconnected) @DRX=5 30 mA Idle (USB connected) @DRX=5 60 mA WCDMA supply current Sleep (USB disconnected) 4.0 @DRX=6 3.0 @DRX=7 2.2 @DRX=8 2.1 @DRX=9 mA Sleep (USB suspended) 4.0 @DRX=6 3.0 @DRX=7 2.5 @DRX=8 2.2 @DRX=9 mA Idle (USB disconnected) @DRX=6 30 mA Idle (USB connected) @DRX=6 60 mA GPRS data transfer GSM850 1DL/1UL @PCL=5 222 mA GSM850 4DL/1UL @PCL=5 222 mA GSM850 3DL/2UL @PCL=5 320 mA GSM850 2DL/3UL @PCL=5 403 mA GSM850 1DL/4UL @PCL=5 459 mA PCS1900 1DL/1UL @PCL=0 170 mA PCS1900 4DL/1UL @PCL=0 170 mA PCS1900 3DL/2UL @PCL=0 238 mA
UMTS/HSDPA Module Series UC15 Hardware Design UC15_Hardware_Design Confidential / Released 65 / 79 5.5. RF Output Power Table 33: Module Conducted RF Output Power In GPRS 4 slots TX mode, the max output power is reduced by 2.5dB. This design conforms to the GSM specification as described in Chapter 13.16 of 3GPP TS 51.010-1. 5.6. RF Receiving Sensitivity Table 34: Module Conducted Receiving Sensitivity PCS1900 2DL/3UL @PCL=0 295 mA PCS1900 1DL/4UL @PCL=0 331 mA WCDMA data transfer UMTS1900 HSDPA @max power 441 mA UMTS850 HSDPA @max power 372 mA GSM voice call GSM850 @PCL=5 239 mA PCS1900 @PCL=0 183 mA WCDMA voice call UMTS1900 @max power 520 mA UMTS850 @max power 450 mA Frequency Max. Min. GSM850 33dBm±2dB 5dBm±5dB PCS1900 30dBm±2dB 0dBm±5dB GSM850 (8-PSK) 27dBm±3dB 5dBm±5dB PCS1900 (8-PSK) 26dBm+3/-4dB 0dBm±5dB UMTS850 24dBm+1/-3dB -56dBm±5dB UMTS1900 24dBm+1/-3dB -56dBm±5dB NOTE
UMTS/HSDPA Module Series UC15 Hardware Design UC15_Hardware_Design Confidential / Released 66 / 79 5.7. Electrostatic Discharge The module is not protected against electrostatics discharge (ESD) in general. Consequently, it is subject to ESD handling precautions that typically apply to ESD sensitive components. Proper ESD handling and packaging procedures must be applied throughout the processing, handling and operation of any application that incorporates the module. The following table shows the module electrostatics discharge characteristics. Table 35: Electrostatics Discharge Characteristics Frequency Receive Sensitivity (Typ.) Unit GSM850 -108.5 dBm PCS1900 -108.5 dBm UMTS850 -110 dBm UMTS1900 -110 dBm Tested Points Contact Discharge Air Discharge Unit VBAT, GND ±5 ±10 kV Antenna Interface ±4 ±8 kV Other Interfaces ±0.5 ±1 kV
UMTS/HSDPA Module Series UC15 Hardware Design UC15_Hardware_Design Confidential / Released 67 / 79 6 Mechanical Dimensions This chapter describes the mechanical dimensions of the module. All dimensions are measured in mm. 6.1. Mechanical Dimensions of the Module (2.5+/-0.2)(1.0+/-0.1)27.1527.1529+/-0.1529+/-0.15 Figure 42: UC15 Top and Side Dimensions
UMTS/HSDPA Module Series UC15 Hardware Design UC15_Hardware_Design Confidential / Released 68 / 79 29294.83.23.43.23.43.23.4 Figure 43: UC15 Bottom Dimensions (Bottom View) Figure 44: Bottom Pads Dimensions (Bottom View)
UMTS/HSDPA Module Series UC15 Hardware Design UC15_Hardware_Design Confidential / Released 69 / 79 6.2. Footprint of Recommendation AA Figure 45: Recommended Footprint (Top View) 1. Refer to figure 2 about the pin distribution (especially for pin 65, 66, 67, 68). 2. The pins on area A are reserved, please keep them unconnected. 3. In order to maintain the module, keep about 3mm between the module and other components in the host PCB. NOTES
UMTS/HSDPA Module Series UC15 Hardware Design UC15_Hardware_Design Confidential / Released 70 / 79 6.3. Top View of the Module Figure 46: Top View of the Module 6.4. Bottom View of the Module Figure 47: Bottom View of the Module
UMTS/HSDPA Module Series UC15 Hardware Design UC15_Hardware_Design Confidential / Released 71 / 79 7 Storage and Manufacturing 7.1. Storage UC15 is stored in the vacuum-sealed bag. The restriction of storage condition is shown as below. Shelf life in sealed bag is 12 months at < 40ºC/90%RH. After this bag is opened, devices that will be subjected to reflow solder or other high temperature process must be:  Mounted within 72 hours at factory conditions of ≤ 30ºC/60%RH.  Stored at < 10% RH. Devices require bake, before mounting, if:  Humidity indicator card is > 10% when read 23ºC±5ºC.  Mounted for more than 72 hours at factory conditions of ≤ 30ºC/60% RH. If baking is required, devices may be baked for 48 hours at 125ºC±5ºC. As plastic container cannot be subjected to high temperature, module needs to be taken out from container to high temperature (125ºC) bake. If shorter bake times are desired, please refer to IPC/JEDECJ-STD-033 for bake procedure. 7.2. Manufacturing and Welding The squeegee should push the paste on the surface of the stencil that makes the paste fill the stencil openings and penetrate to the PCB. The force on the squeegee should be adjusted so as to produce a clean stencil surface on a single pass. To ensure the module soldering quality, the thickness of stencil at the hole of the module pads should be 0.18mm. For details, please refer to document [4]. NOTE
UMTS/HSDPA Module Series UC15 Hardware Design UC15_Hardware_Design Confidential / Released 72 / 79 It is suggested that peak reflow temperature is 235~245ºC (for SnAg3.0Cu0.5 alloy). Absolute max reflow temperature is 260ºC. To avoid damage to the module when it was repeatedly heated, it is suggested that the module should be mounted after the first panel has been reflowed. The following picture is the actual diagram which we have operated. Figure 48: Reflow Soldering Profile 7.3. Packaging UC15 is packaged in the tap and reel carriers. One reel is 12.4m length and contains 250pcs modules. The following figure shows the package details.
UMTS/HSDPA Module Series UC15 Hardware Design UC15_Hardware_Design Confidential / Released 73 / 79 Direction of feedCover tape Figure 49: Carrier Tape
UMTS/HSDPA Module Series UC15 Hardware Design UC15_Hardware_Design Confidential / Released 74 / 79 8 Appendix A Reference Table 36: Related Documents Table 37: Terms and Abbreviations SN Document Name Remark [1] Quectel_UC15_AT_Commands_Manual UC15 AT commands manual [2] Quectel_M10_EVB_User_Guide M10 EVB user guide [3] Quectel_UC15_Reference_Design UC15 reference design [4] Quectel_Module_Secondary_SMT_User_Guide Module secondary SMT user guide Abbreviation Description AMR Adaptive Multi-rate bps Bits Per Second CHAP Challenge Handshake Authentication Protocol CS Coding Scheme CSD Circuit Switched Data CTS Clear to Send DRX Discontinuous Reception DCE Data Communications Equipment (typical module) DTE Data Terminal Equipment (typical computer, external controller) DTR Data Terminal Ready DTX Discontinuous Transmission
UMTS/HSDPA Module Series UC15 Hardware Design UC15_Hardware_Design Confidential / Released 75 / 79 EFR Enhanced Full Rate EGSM Extended GSM900 Band (including standard GSM900 band) ESD Electrostatic Discharge FR Full Rate GMSK Gaussian Minimum Shift Keying GSM Global System for Mobile Communications HR Half Rate HSDPA High Speed Down Link Packet Access IMEI International Mobile Equipment Identity Imax Maximum Load Current LED Light Emitting Diode LSB Least Significant Bit ME Mobile Equipment MO Mobile Originated MS Mobile Station (GSM Engine) MT Mobile Terminated PAP Password Authentication Protocol PBCCH Packet Broadcast Control Channel PCB Printed Circuit Board PDU Protocol Data Unit PPP Point-to-Point Protocol PSK Phase Shift Keying QAM Quadrature Amplitude Modulation QPSK Quadrature Phase Shift Keying RF Radio Frequency
UMTS/HSDPA Module Series UC15 Hardware Design UC15_Hardware_Design Confidential / Released 76 / 79 RMS Root Mean Square (value) Rx Receive SIM Subscriber Identification Module SMS Short Message Service TX Transmitting Direction UART Universal Asynchronous Receiver & Transmitter UMTS Universal Mobile Telecommunications System URC Unsolicited Result Code USIM Universal Subscriber Identity Module USSD Unstructured Supplementary Service Data Vmax Maximum Voltage Value Vnorm Normal Voltage Value Vmin Minimum Voltage Value VIHmax Maximum Input High Level Voltage Value VIHmin Minimum Input High Level Voltage Value VILmax Maximum Input Low Level Voltage Value VILmin Minimum Input Low Level Voltage Value VImax Absolute Maximum Input Voltage Value VImin Absolute Minimum Input Voltage Value VOHmax Maximum Output High Level Voltage Value VOHmin Minimum Output High Level Voltage Value VOLmax Maximum Output Low Level Voltage Value VOLmin Minimum Output Low Level Voltage Value WCDMA Wideband Code Division Multiple Access
UMTS/HSDPA Module Series UC15 Hardware Design UC15_Hardware_Design Confidential / Released 77 / 79 9 Appendix B GPRS Coding Scheme Table 38: Description of Different Coding Schemes Scheme CS-1 CS-2 CS-3 CS-4 Code Rate 1/2 2/3 3/4 1 USF 3 3 3 3 Pre-coded USF 3 6 6 12 Radio Block excl.USF and BCS 181 268 312 428 BCS 40 16 16 16 Tail 4 4 4 - Coded Bits 456 588 676 456 Punctured Bits 0 132 220 - Data Rate Kb/s 9.05 13.4 15.6 21.4
UMTS/HSDPA Module Series UC15 Hardware Design UC15_Hardware_Design Confidential / Released 78 / 79 10 Appendix C GPRS Multi-slot Class Twenty-nine classes of GPRS multi-slot modes are defined for MS in GPRS specification. Multi-slot classes are product dependant, and determine the maximum achievable data rates in both the uplink and downlink directions. Written as 3+1 or 2+2, the first number indicates the amount of downlink timeslots, while the second number indicates the amount of uplink timeslots. The active slots determine the total number of slots the GPRS device can use simultaneously for both uplink and downlink communications. The description of different multi-slot classes is shown in the following table. Table 39: Description of Different Coding Schemes Multislot Class Downlink Slots Uplink Slots Active Slots 1 1 1 2 2 2 1 3 3 2 2 3 4 3 1 4 5 2 2 4 6 3 2 4 7 3 3 4 8 4 1 5 9 3 2 5 10 4 2 5 11 4 3 5 12 4 4 5
UMTS/HSPA Module UC15 Hardware Design UC15_Hardware_Design Confidential / Released 79 / 79 11 Appendix D EDGE Modulation and Coding Scheme Table 40: EDGE Modulation and Coding Scheme Coding Scheme Modulation Coding Family 1 Timeslot 2 Timeslot 4 Timeslot CS-1: GMSK / 9.05kbps 18.1kbps 36.2kbps CS-2: GMSK / 13.4kbps 26.8kbps 53.6kbps CS-3: GMSK / 15.6kbps 31.2kbps 62.4kbps CS-4: GMSK / 21.4kbps 42.8kbps 85.6kbps MCS-1 GMSK C 8.80kbps 17.60kbps 35.20kbps MCS-2 GMSK B 11.2kbps 22.4kbps 44.8kbps MCS-3 GMSK A 14.8kbps 29.6kbps 59.2kbps MCS-4 GMSK C 17.6kbps 35.2kbps 70.4kbps MCS-5 8-PSK B 22.4kbps 44.8kbps 89.6kbps MCS-6 8-PSK A 29.6kbps 59.2kbps 118.4kbps MCS-7 8-PSK B 44.8kbps 89.6kbps 179.2kbps MCS-8 8-PSK A 54.4kbps 108.8kbps 217.6kbps MCS-9 8-PSK A 59.2kbps 118.4kbps 236.8kbps

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