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SC20-A_Manual_R1.0 Confidential / Released 12 / 49

3

Application Interfaces

3.1. General Description

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Power supply

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VRTC interface

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LCM interface

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TP interface

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Camera interface

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Audio interface

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USB interface

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USIM interface

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UART interface

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SDIO interface

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I2C interface

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ADC interface

SC20 is equipped with 146-pin 1.0mm pitch SMT pads plus 64-pin ground pads and reserved pads that

can be embedded into cellular application platform. The following chapters provide the detailed

description of pins/interfaces listed below.

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Summary of Contents for LTE Module Series

Page 1: ...SC20 A Manual LTE Module Series Rev SC20 A_Manual_R1 0 Date 2017 06 30 www quectel com ...

Page 2: ...TION 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...

Page 3: ...SC20 A_Manual_R1 0 Confidential Released 2 49 About the Document History Revision Date Author Description 1 0 2016 06 29 Nina Dou SC20 A_Manual_R1 0 ...

Page 4: ...mance 15 5 GNSS 17 5 1 GNSS Performance 17 6 Antenna Interface 18 6 1 Main Rx diversity Antenna Interface 18 6 1 1 Pin Definition 18 6 1 2 Operating Frequency 18 6 2 Wi Fi BT Antenna Interface 20 6 3 GNSS Antenna Interface 20 6 4 Antenna Installation 21 6 4 1 Antenna Requirement 21 7 Electrical Reliability and Radio Characteristics 23 7 1 Absolute Maximum Ratings 23 7 2 Power Supply Ratings 23 7 3...

Page 5: ...41 10 Appendix A GPRS Coding Schemes 43 11 Appendix B GPRS Multi slot Classes 44 12 Appendix C EDGE Modulation and Coding Schemes 45 13 CE Requirement 46 14 IC FCC Requirement 47 14 1 FCC Regulations 47 14 2 RF Exposure Information 47 14 3 ISED Notice 47 14 4 ISED Radiation Exposure Statement 48 14 5 IMPORTANT NOTE 48 14 6 USERS MANUAL OF THE END PRODUCT 48 14 7 LABEL OF THE END PRODUCT 49 ...

Page 6: ...ur device offers an 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 This document can help you quickly understand module interface specifications electrical and mechanical details as well as othe...

Page 7: ...n 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 include fuelling areas below decks on boats fue...

Page 8: ...GLONASS BeiDou satellite positioning systems Due to multiple speech and audio codecs as well as the built in high performance AdrenoTM 304 graphics processing unit it enables smooth play of 720P videos The module also offers multiple audio and video input output interfaces as well as abundant GPIO interfaces The following table shows the supported network types and frequency bands of SC20 Includin...

Page 9: ...h Support DL 2 x 2 MIMO FDD data rate Max 150Mbps DL 50Mbps UL TDD data rate Max 130Mbps DL 35Mbps UL WCDMA Features Support 3GPP R8 DC HSPA Support 16 QAM 64 QAM and QPSK modulation 3GPP R6 HSUPA Max 5 76Mbps UL 3GPP R8 DC HSPA Max 42Mbps DL TD SCDMA Features Support CCSA Release 3 Max 4 2Mbps DL 2 2Mbps UL CDMA Features Max 3 1Mbps DL 1 8Mbps UL GSM GPRS EDGE Data Features GPRS Support GPRS mult...

Page 10: ...pecification the data transfer rate can reach up to 480Mbps Used for AT command communication data transmission software debugging and firmware upgrade Support USB OTG Need additional 5V power supply chip USB Driver Support Windows XP Windows Vista Windows 7 Windows 8 Windows CE5 0 6 0 Linux 2 6 3 0 Android 2 3 4 0 4 2 USIM Interface 2 groups of USIM interface Support USIM SIM card 1 8V 3 0V UART ...

Page 11: ...I interface AUDIO interface 1 Within operation temperature range the module is 3GPP compliant 2 Within extended temperature range the module remains the ability to establish and maintain a voice SMS data transmission emergency call etc There is no unrecoverable malfunction There are also no effects on radio spectrum and no harm to radio network Only one or more parameters like Pout might reduce in...

Page 12: ... 4 Evaluation Board In order to help you to develop applications with SC20 Quectel supplies an evaluation board SMART 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 1 ...

Page 13: ...mera interface Audio interface USB interface USIM interface UART interface SDIO interface I2C interface ADC interface SC20 is equipped with 146 pin 1 0mm pitch SMT pads plus 64 pin ground pads and reserved pads that can be embedded into cellular application platform The following chapters provide the detailed description of pins interfaces listed below ...

Page 14: ...SC20 A_Manual_R1 0 Confidential Released 13 49 3 2 Pin Assignment The following figure shows the pin assignment of SC20 module Figure 2 Pin Assignment Top View ...

Page 15: ...he module via the interface so as to achieve Wi Fi and BT functions SC20 module supports 2 4G and 5G double band WLAN wireless communication based on IEEE 802 11 a 802 11b 802 11g 802 11n standard protocols The maximum data rate is up to 150 Mbps The features are as below Support Wake on WLAN WoWLAN Support ad hoc mode Support WAPI SMS4 hardware encryption Support AP mode Support Wi Fi Direct Supp...

Page 16: ...ence 3 0 HS 4 0 24 Mbit s Reference 4 0 LE Referenced specifications are listed below No Document 1 Bluetooth Radio Frequency TSS and TP Specification 1 2 2 0 2 0 EDR 2 1 2 1 EDR 3 0 3 0 HS August 6 2009 2 Bluetooth Low Energy RF PHY Test Specification RF PHY TS 4 0 0 December 15 2009 4 2 1 BT Performance Table 4 BT Transmitting and Receiving Performance Transmitter Performance SC20 module support...

Page 17: ...SC20 A_Manual_R1 0 Confidential Released 16 49 Packet Types DH5 2 DH5 3 DH5 Transmitting Power 10dBm 8dBm 8dBm Receiver Performance Packet Types DH5 2 DH5 3 DH5 Receiving Sensitivity 92dBm 91dBm 86dBm ...

Page 18: ...60 dBm TTFF GNSS Cold start 32 s Warm start 30 s Hot start 2 s Static Drift GNSS CEP 50 6 m SC20 module integrates a Qualcomm IZat GNSS engine GEN 8C which supports multiple positioning and navigation systems including GPS GLONASS and BeiDou With an embedded LNA the module provides greatly improved positioning accuracy The following table lists the GNSS performance of SC20 module in conduction mod...

Page 19: ...ng Frequencies 3GPP Band Receive Transmit Unit GSM850 869 894 824 849 MHz EGSM900 925 960 880 915 MHz DCS1800 1805 1880 1710 1785 MHz PCS1900 1930 1990 1850 1910 MHz WCDMA Band 1 2110 2170 1920 1980 MHz WCDMA Band 2 1930 1990 1850 1910 MHz SC20 antenna interface includes a main antenna an Rx diversity MIMO antenna a GNSS antenna and a Wi Fi BT antenna The antenna interface has an impedance of 50Ω ...

Page 20: ...1930 1990 1850 1910 MHz LTE FDD Band 3 1805 1880 1710 1785 MHz LTE FDD Band 4 2110 2155 1710 1755 MHz LTE FDD Band 5 869 894 824 849 MHz LTE FDD Band 8 925 960 880 915 MHz LTE FDD Band 12 729 746 699 716 MHz LTE FDD Band 13 746 756 777 787 MHz LTE FDD Band 18 860 875 815 830 MHz LTE FDD Band 19 875 890 830 845 MHz LTE FDD Band 20 791 821 832 862 MHz LTE FDD Band 25 1930 1995 1850 1915 MHz LTE FDD ...

Page 21: ...2472MHz 5180 5825MHz MHz BT4 1 LE 2402 2480MHz MHz 6 3 GNSS Antenna Interface The following tables show the GNSS antenna pin s definition and frequency specification Table 10 Pin Definition of GNSS Antenna Pin Name Pin No I O Description Comment ANT_GNSS 121 AI GNSS antenna 50Ω impedance The bandwidth of LTE TDD Band 41 for SC20 module is 100MHz 2555 MHz 2655 MHz and the corresponding channel rang...

Page 22: ...GSM900 WCDMA B5 B6 B8 B19 CDMA BC0 LTE FDD B5 B8 B12 B13 B18 B19 B20 B26 B28 Cable Insertion Loss 1 5dB DCS1800 PCS1900 WCDMA B1 B2 B4 TD SCDMA B34 B39 LTE FDD B1 B2 B3 B4 B25 LTE TDD B39 Cable Insertion Loss 2dB LTE FDD B7 LTE TDDB38 B40 B41 Wi Fi BT VSWR 2 Max Input Power W 50 Input Impedance Ω 50 Polarization Type Vertical Cable Insertion Loss 1dB GNSS Frequency range 1565 1607MHz Polarization ...

Page 23: ... gain do not exceed the limits for each given frequency band per wireless technology as follow table Technology Band Maximum Conducted Power dBm Maximum Antenna Gain dBi GSM GSM850 33 0 3 0 GSM1900 30 5 2 5 WCDMA Band II 24 0 2 5 Band IV 24 0 5 0 Band V 24 0 3 0 LTE Band 2 24 0 2 5 Band 4 24 5 5 0 Band 5 24 5 3 0 Band 7 24 5 8 5 Band 12 24 0 6 0 Band 13 24 0 6 0 Band 25 24 0 2 5 Band 26 24 0 3 0 N...

Page 24: ...15 SC20 Module Power Supply Ratings Parameter Description Conditions Min Typ Max Unit VBAT VBAT Voltage must stay within the min max values including voltage drop ripple and spikes 3 5 3 8 4 2 V Voltage drop during transmitting burst Maximum power control level on EGSM900 400 mV IVBAT Peak supply current during transmission slot Maximum power control level on EGSM900 1 8 3 0 A Absolute maximum rat...

Page 25: ...e voltage accuracy 2 Charge current range 90mA steps 90 1440 mA Charge current accuracy 10 Charge termination current when charge current is from 90 to 450mA 7 Charge termination current when charge current is from 450 to 1440mA 7 4 7 4 Operating Temperature The operating temperature is listed in the following table Table 17 Operating Temperature Parameter Min Typ Max Unit Operating temperature ra...

Page 26: ...eed the specified tolerances When the temperature returns to the normal operating temperature levels the module will meet 3GPP compliant again 7 5 Current Consumption Table 18 SC20 CE Current Consumption Parameter Description Conditions Typ Unit IVBAT OFF state Power down 80 uA GSM GPRS supply current Sleep DRX 2 3 85 mA Sleep DRX 5 3 01 mA Sleep DRX 9 2 91 mA WCDMA supply current Sleep DRX 6 3 30...

Page 27: ...dBm 117 8 mA DCS1800 PCL 0 28 91dBm 200 9 mA DCS1800 PCL 7 15 35dBm 157 mA DCS1800 PCL 15 0 21dBm 138 1 mA CDMA voice call BC0 max power 23 91dBm 619 8 mA BC0 min power 60 28dBm 128 7 mA WCDMA voice call Band1 max power 22 61dBm 430 mA Band8 max power 22 74dBm 392 2 mA EDGE data transfer EDGE900 1UL 4DL 26 29dBm 193 mA EDGE900 2UL 3DL 26 15dBm 277 9 mA EDGE900 3UL 2DL 26 06dBm 362 2 mA EDGE900 4UL...

Page 28: ...52 5 mA Band 8 HSUPA 21 56dBm 436 mA LTE data transfer LTE FDD Band1 22 96dBm 631 2 mA LTE FDD Band3 22 95dBm 639 6 mA LTE FDD Band8 23 17dBm 542 mA LTE TDD Band38 22 02dBm 422 89 mA LTE TDD Band39 22 13dBm 458 mA LTE TDD Band40 22 01dBm 392 9 mA LTE TDD Band41 22 31dBm 441 4 mA Table 19 SC20 E Current Consumption Parameter Description Conditions Typ Unit IVBAT OFF state Power down 80 uA GSM GPRS ...

Page 29: ...DRX 7 2 37 mA Sleep DRX 8 1 91 mA LTE TDD supply current Sleep DRX 5 5 51 mA Sleep DRX 6 3 45 mA Sleep DRX 7 2 40 mA Sleep DRX 8 1 85 mA GSM voice call Sleep PCL 5 32 79dBm 255 mA GSM850 PCL 12 19 04dBm 135 mA GSM850 PCL 19 5 37dBm 108 mA EGSM900 PCL 5 32 95dBm 264 mA EGSM900 PCL 12 19 23dBm 137 mA EGSM900 PCL 19 5 71dBm 109 mA DCS1800 PCL 0 29 74dBm 197 mA DCS1800 PCL 7 16 31dBm 153 mA DCS1800 PC...

Page 30: ...3 26dBm 536 mA GPRS data transfer GPRS850 1UL 4DL 32 83dBm 260 mA GPRS850 2UL 3DL 32 72dBm 422 mA GPRS850 3UL 2DL 30 71dBm 491 mA GPRS850 4UL 1DL 29 59dBM 571 mA GPRS900 1UL 4DL 33 02dBm 272 mA GPRS900 2UL 3DL 32 87dBm 443 mA GPRS900 3UL 2DL 30 84dBm 510 mA GPRS900 4UL 1DL 29 77dBm 599 mA DCS1800 1UL 4DL 29 74dBm 204 mA DCS1800 2UL 3DL 29 63dBm 306 mA DCS1800 3UL 2DL 29 48dBm 415 mA DCS1800 4UL 1D...

Page 31: ...1DL 26 54dBm 451 mA EDGE900 1UL 4DL 27 05dBm 182 mA EDGE900 2UL 3DL 26 99dBm 281 mA EDGE900 3UL 2DL 27 07dBm 374 mA EDGE900 4UL 1DL 26 84dBm 476 mA DCS1800 1UL 4DL 25 56dBm 178 mA DCS1800 2UL 3DL 25 69dBm 263 mA DCS1800 3UL 2DL 25 56dBm 352 mA DCS1800 4UL 1DL 25 30dBm 446 mA PCS1900 1UL 4DL 26 08dBm 120 mA PCS1900 2UL 3DL 25 91dBm 231 mA PCS1900 3UL 2DL 25 92dBm 347 mA PCS1900 4UL 1DL 25 66dBm 464...

Page 32: ... 699 mA LTE FDD Band5 23 64dBm 684 mA LTE FDD Band7 22 98dBm 868 mA LTE FDD Band8 23 59dBm 681 mA LTE FDD Band20 23 48dBm 692 mA LTE TDD Band38 23 21dBm 500 mA LTE TDD Band40 23 28dBm 449 mA LTE TDD Band41 23 00dBm 481 mA Table 20 SC20 A Current Consumption Parameter Description Conditions Typ Unit IVBAT OFF state Power down 16 uA GSM GPRS supply current Sleep DRX 2 3 45 mA Sleep DRX 5 2 53 mA Sle...

Page 33: ... 15 1 13dBm 135 44 mA WCDMA voice call Band 1 max power 23 69dBm 547 75 mA Band 2 max power 23 90dBm 576 08 mA Band 4 max power 23 65dBm 537 20 mA Band 5 max power 23 47dBm 533 06 mA Band 8 max power 23 76dBm 557 79 mA GPRS data transfer GPRS850 1UL 4DL 32 38dBm 254 25 mA GPRS850 2UL 3DL 32 04dBm 411 18 mA GPRS850 3UL 2DL 30 54dBm 493 74 mA GPRS850 4UL 1DL 29 54dBm 580 68 mA PCS1900 1UL 4DL 29 99d...

Page 34: ...60 28 mA PCS1900 4UL 1DL 25 40dBm 462 mA WCDMA data transfer Band 1 HSDPA 22 7dBm 487 87 mA Band 2 HSDPA 22 90dBm 539 mA Band 4 HSDPA 22 73dBm 495 49 mA Band 5 HSDPA 22 73dBm 497 11 mA Band 8 HSDPA 22 74dBm 499 5 mA Band 1 HSUPA 22 03dBm 496 03 mA Band2 HSUPA 22 57dBm 534 mA Band 4 HSUPA 22 24dBm 495 66 mA Band 5 HSUPA 22 1dBm 494 12 mA Band 8 HSUPA 22 02dBm 489 2 mA LTE data transfer LTE FDD Band...

Page 35: ...tatic discharge ESD in general Consequently it should be subject to ESD handling precautions that are typically applied 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 electrostatic discharge characteristics Tested Points Con...

Page 36: ...fidential Released 35 49 8 Technical Dimensions This chapter describes the mechanical dimensions of the module All dimensions are measured in mm 8 1 Mechanical Dimensions of the Module Figure 3 Module Top and Side Dimensions ...

Page 37: ...SC20 A_Manual_R1 0 Confidential Released 36 49 Figure 4 Module Bottom Dimensions Top View ...

Page 38: ...sed 37 49 8 2 Recommended Footprint Figure 5 Recommended Footprint Top View 1 For easy maintenance of the module keep about 3mm between the module and other components in the host PCB 2 All RESERVED pins must not be connected to GND NOTES ...

Page 39: ...38 49 8 3 Top and Bottom View of the Module Figure 6 Top View of the Module Figure 7 Bottom View of the Module These are design effect drawings of SC20 module For more accurate pictures please refer to the module that you get from Quectel NOTE ...

Page 40: ...72 hours at factory conditions of 30ºC 60 RH 4 If baking is required devices may be baked for 48 hours at 125ºC 5ºC 9 2 Manufacturing and Welding Push the squeegee to apply the solder paste on the surface of stencil thus making the paste fill the stencil openings and then penetrate to the PCB The force on the squeegee should be adjusted properly so as to produce a clean stencil surface on a single...

Page 41: ...at the peak reflow temperature is from 235 to 245ºC for SnAg3 0Cu0 5 alloy The absolute maximum reflow temperature is 260ºC To avoid damage to the module caused by repeated heating it is suggested that the module should be mounted after reflow soldering for the other side of PCB has been completed Recommended reflow soldering thermal profile is shown below ...

Page 42: ...sed 41 49 9 3 Packaging Figure 10 Tape Dimensions Figure 11 Reel Dimensions SC20 is packaged in tape and reel carriers One reel is 12 32 meters long and contains 200pcs modules The following figures show the package details measured in mm ...

Page 43: ...onfidential Released 42 49 Table 22 Reel Packaging Model Name MOQ for MP Minimum Package 200pcs Minimum Package 4 800pcs SC20 200 Size 370mm 350mm 85mm N W 1 92kg G W 3 17kg Size 380mm 365mm 365mm N W 7 68 kg G W 13 63 kg ...

Page 44: ... 23 Description of Different Coding Schemes Scheme CS 1 CS 2 CS 3 C4 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 ...

Page 45: ...fined for MS in GPRS specification Multi slot classes are product dependent 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 simultane...

Page 46: ...ps 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 4...

Page 47: ...4 53 EU The full text of the EU declaration of conformity is available at the following internet address 7th Floor Hongye Building No 1801 Hongmei Road Xuhui District Shanghai 200233 China http www quectel com support downloadb TechnicalDocuments htm This SC20 E operates with the following frequency bands and maximum radio frequency power GSM850 900 35dBm GSM1800 1900 32dBm UMTS Band 1 5 8 25 dBm ...

Page 48: ...turning the equipment off and on the user is encouraged to try to correct the interference by one or more of the following measures Reorient or relocate the receiving antenna Increase the separation between the equipment and receiver Connect the equipment into an outlet on a circuit different from that to which the receiver is connected Consult the dealer or an experienced radio TV technician for ...

Page 49: ...e is intended for OEM integrator The OEM integrator is still responsible for the FCC compliance requirement of the end product which integrates this module 20cm minimum distance has to be able to be maintained between the antenna and the users for the host this module is integrated into Under such configuration the FCC radiation exposure limits set forth for an population uncontrolled environment ...

Page 50: ...device may not cause harmful interference and 2 this device must accept any interference received including interference that may cause undesired operation The Innovation Science and Economic Development Canada certification label of a module shall be clearly visible at all times when installed in the host device otherwise the host device must be labeled to display the Innovation Science and Econo...

Page 51: ...nce depends on the dielectric of PCB the trace width and the grand plane spacing Coated Coplanar Line is required the detail simulation as below 2 the RF trace of the test board which was used in the FCC test is defined as below ...

Page 52: ...nce depends on the dielectric of PCB the trace width and the grand plane spacing Coated Coplanar Line is required the detail simulation as below 4 the RF trace of the test board which was used in the FCC test is defined as below ...

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