Quectel SC20-A User Manual
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Quectel SC20-A User Manual

Quectel SC20-A User Manual

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

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  • Page 1 SC20-A Manual LTE Module Series Rev: SC20-A_Manual_R1.0 Date: 2017-06-30 www.quectel.com...
  • Page 2 QUECTEL OFFERS THE 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.

  • Page 3: About The Document

    About the Document History Revision Date Author Description 2016-06-29 Nina Dou SC20-A_Manual_R1.0 SC20-A_Manual_R1.0 Confidential / Released 2 / 49...

  • Page 4: Table Of Contents

    Contents About the Document ........................... 2 Contents ............................... 3 Introduction ............................5 1.1. Safety Information........................5 Product Concept ..........................7 2.1. General Description ........................7 2.2. Key Features ..........................8 2.3. Functional Diagram ......................... 10 2.4. Evaluation Board ........................11 Application Interfaces ........................
  • Page 5 8.3. Top and Bottom View of the Module ..................38 Storage, Manufacturing and Packaging ..................39 9.1. Storage............................. 39 9.2. Manufacturing and Welding ..................... 39 9.3. Packaging ..........................41 10 Appendix A GPRS Coding Schemes ....................43 11 Appendix B GPRS Multi-slot Classes ....................44 12 Appendix C EDGE Modulation and Coding Schemes ..............

  • Page 6: Introduction

    If not so, Quectel assumes no liability for the customer’s failure to comply with these precautions.
  • Page 7 Cellular terminals or mobiles operating over radio frequency signal and cellular network cannot be guaranteed to connect in all conditions, for example no mobile fee or with an invalid SIM card. While you are in this condition and need emergent help, please remember using emergency call.

  • Page 8: Product Concept

    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. Including a series of product such as:SC20-CE,SC20-A,SC20-AU,SC20-E,SC20-J. Table 1: SC20-A Frequency Bands Type...

  • Page 9: Key Features

    2.2. Key Features The following table describes the detailed features of SC20 module. Table 2: SC20 Key Features Feature Details ARM Cortex-A7 microprocessor cores (quad-core) up to 1.1 GHz Applications Processor 512KB L2 cache QDSP6 v5 core up to 691.2 MHz Modem DSP 768KB L2 cache Memory...
  • Page 10 Text and PDU mode Point to point MO and MT SMS cell broadcast SMS storage: ME by default Compliant with 3GPP TS 27.007, 27.005 and Quectel enhanced AT AT Commands commands 4 lanes MIPI_DSI, up to 1.5Gbps each LCM Interface...

  • Page 11: Functional Diagram

    Weight: approx. 9.6g Operating temperature range: -35°C~+65°C 1) Temperature Range Extended temperature range : -40°C~+75°C 2) Firmware Upgrade Over USB interface RoHS All hardware components are fully compliant with EU RoHS directive NOTES Within operation temperature range, the module is 3GPP compliant. Within extended temperature range, the module remains the ability to establish and maintain a voice, SMS, data transmission, emergency call, etc.

  • Page 12: Evaluation Board

    Figure 1: Functional Diagram 2.4. 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: Application Interfaces

    Application Interfaces 3.1. General Description 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: Pin Assignment

    3.2. Pin Assignment The following figure shows the pin assignment of SC20 module. Figure 2: Pin Assignment (Top View) SC20-A_Manual_R1.0 Confidential / Released 13 / 49...

  • Page 15: Wi-Fi And Bt

    Wi-Fi and BT SC20 module provides a shared antenna interface ANT_WIFI/BT for Wi-Fi and Bluetooth (BT) functions. The interface impedance is 50Ω. External antennas such as dipole antenna can be connected to the module via the interface, so as to achieve Wi-Fi and BT functions. 4.1.

  • Page 16: Bt Overview

    IEEE Std 802.11b, IEEE Std 802.11d, IEEE Std 802.11e, IEEE Std 802.11g, IEEE Std 802.11i: IEEE 802.11-2007 WLAN MAC and PHY, June 2007 4.2. BT Overview SC20 module supports BT4.1 (BR/EDR+BLE) specification, as well as GFSK, 8-DPSK, π/4-DQPSK modulation modes. ...
  • Page 17 Packet Types 2-DH5 3-DH5 Transmitting Power 10dBm 8dBm 8dBm Receiver Performance Packet Types 2-DH5 3-DH5 Receiving Sensitivity -92dBm -91dBm -86dBm SC20-A_Manual_R1.0 Confidential / Released 16 / 49...

  • Page 18: Gnss

    GNSS 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. 5.1. GNSS Performance The following table lists the GNSS performance of SC20 module in conduction mode. Table 5: GNSS Performance Parameter Description...

  • Page 19: Antenna Interface

    Antenna Interface 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. 6.1. Main/Rx-diversity Antenna Interface 6.1.1. Pin Definition The main antenna and Rx-diversity antenna pins’ definition are shown below. Table 6: Pin Definition of the Main/Rx-diversity Antenna Pin Name Pin No.
  • Page 20 WCDMA Band 4 2110-2155 1710-1755 WCDMA Band 5 869-894 824-849 WCDMA Band 6 875-885 830-840 WCDMA Band 8 925-960 880-915 WCDAM Band 19 875-890 830-845 CDMA BC0 869-894 824-849 TD-SCDMA Band 34 2010-2025 2010-2025 TD-SCDMA Band 39 1880-1920 1880-1920 LTE-FDD Band 1 2110-2170 1920-1980 LTE-FDD Band 2...

  • Page 21: Wi-Fi/Bt Antenna Interface

    LTE-TDD Band 41 2555-2655 2555-2655 NOTE The bandwidth of LTE-TDD Band 41 for SC20 module is 100MHz (2555 MHz - 2655 MHz), and the corresponding channel range is from 40240 up to 41240. 6.2. Wi-Fi/BT Antenna Interface The following tables show the Wi-Fi/BT antenna pin’s definition and frequency specification. Table 8: Pin Definition of Wi-Fi/BT Antenna Pin Name Pin No.

  • Page 22: Antenna Installation

    Table 11: GNSS Frequency Type Frequency Unit 1575.42 ± 1.023 GLONASS 1597.5 - 1605.8 BeiDou 1561.098 ± 2.046 6.4. Antenna Installation 6.4.1. Antenna Requirement The following table shows the requirement on main antenna, RX-diversity antenna, Wi-Fi/BT antenna and GNSS antenna. Table 12: Antenna Requirements Type Requirements...
  • Page 23 Active Antenna Gain: > -2dBi Active Antenna Embedded LNA Gain: 20dB (Typ.) Active Antenna Total Gain: > 18dBi (Typ.) Table 13: Antenna Gain Conclusion: The analysis concludes that this product when transmitting in standalone within a host device, is compliant with the RF exposure requirements in mobile exposure condition, provided the conducted power and antenna gain do not exceed the limits for each given frequency band per wireless technology as follow table: Maximum...

  • Page 24: Electrical, Reliability And Radio Characteristics

    Electrical, Reliability and Radio Characteristics 7.1. Absolute Maximum Ratings Absolute maximum ratings for power supply and voltage on digital and analog pins of the module are listed in the following table. Table 14: Absolute Maximum Ratings Parameter Min. Max. Unit VBAT -0.5 USB_VBUS...

  • Page 25: Charging Performance Specifications

    Parameter Description Conditions Min. Typ. Max. Unit USB_VBUS USB detection 4.35 Power supply voltage VRTC 3.25 of backup battery. 7.3. Charging Performance Specifications Table 16: Charging Performance Specifications Parameter Min. Typ. Max. Unit Trickle charging current Trickle charging threshold voltage range 2.796 2.984 (15.62mV steps)

  • Page 26: Current Consumption

    NOTES Operating temperature range ---- 3GPP compliant. 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 P might reduce in their value and exceed the specified tolerances.
  • Page 27 Parameter Description Conditions Typ. Unit Sleep 5.49 @DRX=5 Sleep 3.87 @DRX=6 LTE-TDD supply current Sleep 3.05 @DRX=7 Sleep 2.67 @DRX=8 GSM900 PCL=5@31.84dBm 253.6 GSM900 PCL=12@18.49dBm 142.9 GSM900 PCL=19@4.95dBm 117.8 GSM voice call DCS1800 PCL=0@28.91dBm 200.9 DCS1800 PCL=7@15.35dBm DCS1800 PCL=15@-0.21dBm 138.1 BC0(max power) 619.8 @23.91dBm...
  • Page 28 Parameter Description Conditions Typ. Unit DCS1800 (3UL/2DL) 355.9 @24.54dBm DCS1800 (4UL/1DL) 440.3 @24.44dBm BC0(max power) CDMA data transfer 602.5 @23.68dBm Band 1(HSDPA) @21.64dBm 461.5 Band 8(HSDPA) @21.61dBm 423.8 WCDMA data transfer Band 1(HSUPA) @21.36dBm 452.5 Band 8(HSUPA) @21.56dBm LTE-FDD Band1 @22.96dBm 631.2 LTE-FDD Band3@22.95dBm 639.6...
  • Page 29 Parameter Description Conditions Typ. Unit Sleep 2.17 @DRX=7 Sleep 1.90 @DRX=8 Sleep 1.72 @DRX=9 Sleep 5.49 @DRX=5 Sleep 3.06 @DRX=6 LTE-FDD supply current Sleep 2.37 @DRX=7 Sleep 1.91 @DRX=8 Sleep 5.51 @DRX=5 Sleep 3.45 @DRX=6 LTE-TDD supply current Sleep 2.40 @DRX=7 Sleep 1.85...
  • Page 30 Parameter Description Conditions Typ. Unit PCS1900 PCL=0@29.78dBm PCS1900 PCL=7@16.73dBm PCS1900 PCL=15@0.66dBm Band 1(max power) @23.10dBm Band 5(max power) WCDMA voice call @23.32dBm Band 8(max power) @23.26dBm GPRS850 (1UL/4DL) @32.83dBm GPRS850 (2UL/3DL) @32.72dBm GPRS850 (3UL/2DL) @30.71dBm GPRS850 (4UL/1DL) @29.59dBM GPRS900 (1UL/4DL) @33.02dBm GPRS900 (2UL/3DL) @32.87dBm...
  • Page 31 Parameter Description Conditions Typ. Unit PCS1900 (3UL/2DL) @29.48dBm PCS1900 (4UL/1DL) @29.30dBm EDGE850 (1UL/4DL) @26.71dBm EDGE850 (2UL/3DL) @26.73dBm EDGE850 (3UL/2DL) @26.62dBm EDGE850 (4UL/1DL) @26.54dBm EDGE900 (1UL/4DL) @27.05dBm EDGE900 (2UL/3DL) @26.99dBm EDGE900 (3UL/2DL) @27.07dBm EDGE900 (4UL/1DL) @26.84dBm EDGE data transfer DCS1800 (1UL/4DL) @25.56dBm DCS1800 (2UL/3DL) @25.69dBm...
  • Page 32 LTE-FDD Band8 LTE data transfer @23.59dBm LTE-FDD Band20 @23.48dBm LTE-TDD Band38 @23.21dBm LTE-TDD Band40 @23.28dBm LTE-TDD Band41 @23.00dBm Table 20: SC20-A Current Consumption Parameter Description Conditions Typ. Unit OFF state Power down Sleep @DRX=2 3.45 GSM/GPRS supply current Sleep @DRX=5 2.53...
  • Page 33 Parameter Description Conditions Typ. Unit Sleep @DRX=8 1.76 Sleep @DRX=9 1.78 GSM850PCL=5@32.48dBm 253.09 GSM850PCL=12@19.35dBm 138.58 GSM850PCL=19@5.47dBm 109.84 GSM voice call PCS1900 202.50 PC=L0@30.08dBm PCS1900 157.92 PCL=7@16.86dBm PCS1900 135.44 PCL=15@1.13dBm Band 1(max power) 547.75 @23.69dBm Band 2(max power) 576.08 @23.90dBm Band 4(max power) WCDMA voice call 537.20 @23.65dBm...
  • Page 34 Parameter Description Conditions Typ. Unit EDGE850 (1UL/4DL) 173.67 @26.80dBm EDGE850 (2UL/3DL) 268.78 @26.69dBm EDGE850 (3UL/2DL) 360.92 @26.52dBm EDGE850 (4UL/1DL) 459.33 @26.41dBm EDGE data transfer PCS1900 (1UL/4DL) 174.92 @25.96dBm PCS1900 (2UL/3DL) 269.30 @25.80dBm PCS1900 (3UL/2DL) 360.28 @25.56dBm PCS1900 (4UL/1DL) @25.40dBm Band 1(HSDPA) @22.7dBm 487.87 Band 2(HSDPA) @22.90dBm Band 4(HSDPA) @22.73dBm...

  • Page 35: Electrostatic Discharge

    Parameter Description Conditions Typ. Unit LTE-FDD Band13 @23.3dBm 674.84 LTE-FDD Band25 @23.1dBm 760 LTE-FDD Band26 @23.2dBm 731 7.6. Electrostatic Discharge The module is not protected against electrostatic 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.

  • Page 36: Technical Dimensions

    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 SC20-A_Manual_R1.0 Confidential / Released 35 / 49...
  • Page 37 Figure 4: Module Bottom Dimensions (Top View) SC20-A_Manual_R1.0 Confidential / Released 36 / 49...

  • Page 38: Recommended Footprint

    8.2. Recommended Footprint Figure 5: Recommended Footprint (Top View) NOTES For easy maintenance of the module, keep about 3mm between the module and other components in the host PCB. All RESERVED pins must not be connected to GND. SC20-A_Manual_R1.0 Confidential / Released 37 / 49...

  • Page 39: Top And Bottom View Of The Module

    Figure 6: Top View of the Module Figure 7: Bottom View of the Module NOTE These are design effect drawings of SC20 module. For more accurate pictures, please refer to the module that you get from Quectel. SC20-A_Manual_R1.0 Confidential / Released 38 / 49...

  • Page 40: Storage, Manufacturing And Packaging

    Storage, Manufacturing and Packaging 9.1. Storage SC20 is stored in a vacuum-sealed bag. The restrictions of storage condition are 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 soldering or other high temperature process must be: ...
  • Page 41 Figure 8: Recommended Stencil Design for LGA Pads It is suggested that 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.

  • Page 42: Packaging

    9.3. Packaging 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. Figure 10: Tape Dimensions Figure 11: Reel Dimensions SC20-A_Manual_R1.0 Confidential / Released 41 / 49...
  • Page 43 Table 22: Reel Packaging Model MOQ for MP Minimum Package: 200pcs Minimum Package×4=800pcs Name Size: 370mm*350mm*85mm Size: 380mm*365mm*365mm SC20 N.W: 1.92kg N.W:7.68 kg G.W: 3.17kg G.W:13.63 kg SC20-A_Manual_R1.0 Confidential / Released 42 / 49...

  • Page 44: Appendix A Gprs Coding Schemes

    Appendix A GPRS Coding Schemes Table 23: Description of Different Coding Schemes Scheme CS-1 CS-2 CS-3 C4-4 Code Rate Pre-coded USF Radio Block excl.USF and BCS Tail Coded Bits Punctured Bits Data Rate Kb/s 9.05 13.4 15.6 21.4 SC20-A_Manual_R1.0 Confidential / Released 43 / 49...

  • Page 45: Appendix B Gprs Multi-Slot Classes

    Appendix B GPRS Multi-slot Classes Twenty-nine classes of GPRS multi-slot modes are defined 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.

  • Page 46: Appendix C Edge Modulation And Coding Schemes

    Appendix C EDGE Modulation and Coding Schemes Table 25: EDGE Modulation and Coding Schemes 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...

  • Page 47: Ce Requirement

    The minimum distance between the user and/or any bystander and the radiating structure of the transmitter is 20cm. Hereby, Quectel Wireless Solutions Co., Ltd. declares that the radio equipment type SC20-E is in compliance with Directive 2014/53/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...

  • Page 48: Ic & Fcc Requirement

    IC & FCC Requirement 14.1. FCC Regulations: This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) This device must accept any interference received, including interference that may cause undesired operation.

  • Page 49: Ised Radiation Exposure Statement

    Le présent appareil est conforme aux CNR Innovation, Sciences et Développement économique Canada applicables aux appareils radio exempts de licence. L'exploitation est autorisée aux deux conditions suivantes: (1) l'appareil ne doit pas produire de brouillage, et (2) l'utilisateur de l'appareil doit accepter tout brouillage radioélectrique subi, même si le brouillage est susceptible d'en This Class B digital apparatus complies with Canadian ICES-003.

  • Page 50: Label Of The End Product

    14.7. LABEL OF THE END PRODUCT: The final end product must be labeled in a visible area with the following " Contains Transmitter Module FCC ID: XMR201706SC20A". If the size of the end product is larger than 8x10cm, then the following FCC part 15.19 statement has to also be available on the label: This device complies with Part 15 of FCC rules.
  • Page 51 1、the characteristic impedence 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 3、the characteristic impedence 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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