Quectel SC262R Series Supplement

SC262R_Series_Hardware_Design 0 / 115
SC262R Series
Hardware Design
Smart Module Series
Version: 1.0.0
Date: 2022-07-11
Status: Preliminary

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Copyright © Quectel Wireless Solutions Co., Ltd. 2022. All rights reserved.

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Safety Information
The following safety precautions must be observed during all phases of operation, such as usage, service
or repair of any cellular terminal or mobile incorporating the module. Manufacturers of the cellular terminal
should notify users and operating personnel of the following safety information by incorporating these
guidelines into all manuals of the product. Otherwise, Quectel assumes no liability for customers’ failure to
comply with these precautions.
Full attention must be paid to driving at all times in order to reduce the risk of an
accident. Using a mobile while driving (even with a handsfree kit) causes
distraction and can lead to an accident. Please comply with laws and regulations
restricting the use of wireless devices while driving.
Switch off the cellular terminal or mobile before boarding an aircraft. The operation
of wireless appliances in an aircraft is forbidden to prevent interference with
communication systems. If there is an Airplane Mode, it should be enabled prior to
boarding an aircraft. Please consult the airline staff for more restrictions on the use
of wireless devices on an aircraft.
Wireless devices may cause interference on sensitive medical equipment, so
please be aware of the restrictions on the use of wireless devices when in
hospitals, clinics or other healthcare facilities.
Cellular terminals or mobiles operating over radio signal and cellular network
cannot be guaranteed to connect in certain conditions, such as when the mobile bill
is unpaid or the (U)SIM card is invalid. When emergency help is needed in such
conditions, use emergency call if the device supports it. In order to make or receive
a call, the cellular terminal or mobile must be switched on in a service area with
adequate cellular signal strength. In an emergency, the device with emergency call
function cannot be used as the only contact method considering network
connection cannot be guaranteed under all circumstances.
The cellular terminal or mobile contains a transceiver. When it is ON, it receives
and transmits radio frequency signals. RF interference can occur if it is used close
to TV sets, radios, computers or other electric equipment.
In locations with explosive or potentially explosive atmospheres, obey all posted
signs and turn off wireless devices such as mobile phone or other cellular
terminals. Areas with explosive or potentially explosive atmospheres include
fueling areas, below decks on boats, fuel or chemical transfer or storage facilities,
and areas where the air contains chemicals or particles such as grain, dust or
metal powders.

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About the Document
Revision History
Version
Date
Author
Description
-
2022-07-11
Today JIN/
Xiaomeng GUO
Creation of the document
1.0.0
2022-07-11
Today JIN/
Xiaomeng GUO
Preliminary

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Contents
Safety Information.......................................................................................................................................3
About the Document...................................................................................................................................4
Contents.......................................................................................................................................................5
Table Index...................................................................................................................................................8
Figure Index...............................................................................................................................................10
1Introduction........................................................................................................................................12
2Product Overview ..............................................................................................................................13
2.1. Frequency Bands and Functions.............................................................................................13
2.2. Key Features ...........................................................................................................................15
2.3. Functional Diagram .................................................................................................................18
2.4. EVB Kit.....................................................................................................................................19
3Application Interfaces .......................................................................................................................20
3.1. General Description.................................................................................................................20
3.2. Pin Assignment........................................................................................................................21
3.3. Pin Description.........................................................................................................................22
3.4. Power Supply...........................................................................................................................36
3.4.1. Power Supply Pins.........................................................................................................36
3.4.2. Voltage Stability Requirements......................................................................................36
3.4.3. Reference Design for Power Supply..............................................................................37
3.5. Turn On and Off.......................................................................................................................38
3.5.1. Turn On with PWRKEY..................................................................................................38
3.5.2. Turn Off the Module .......................................................................................................39
3.6. VRTC Interface........................................................................................................................40
3.7. Power Output...........................................................................................................................40
3.8. Battery Charging and Management........................................................................................41
3.9. USB Interface ..........................................................................................................................43
3.10. UART Interfaces......................................................................................................................45
3.11. (U)SIM Interfaces.....................................................................................................................47
3.12. SD Card Interface....................................................................................................................49
3.13. GPIO Interfaces.......................................................................................................................51
3.14. I2C Interfaces ..........................................................................................................................53
3.15. SPI Interfaces..........................................................................................................................54
3.16. ADC Interface..........................................................................................................................55
3.17. Vibration Motor Driver Interface ..............................................................................................55
3.18. LCM Interface..........................................................................................................................56
3.19. Touch Panel Interface .............................................................................................................59
3.20. Camera Interfaces...................................................................................................................60
3.20.1. Design Considerations...................................................................................................64
3.21. Sensor Interfaces.....................................................................................................................66
3.22. Audio Interfaces.......................................................................................................................66

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3.22.1. Reference Circuit Design for Microphone Interfaces.....................................................67
3.22.2. Reference Circuit Design for Earpiece Interface...........................................................68
3.22.3. Reference Circuit Design for Headset Interface............................................................68
3.22.4. Reference Circuit Design for Loudspeaker Interface.....................................................69
3.22.5. Design Considerations forAudio Interfaces ..................................................................69
3.23. USB_BOOT Control Interface.................................................................................................69
4Wi-Fi and Bluetooth...........................................................................................................................71
4.1. Wi-Fi.........................................................................................................................................71
4.1.1. Wi-Fi Performance.........................................................................................................71
4.2. Bluetooth..................................................................................................................................73
4.2.1. Bluetooth Performance ..................................................................................................74
5GNSS...................................................................................................................................................75
5.1. GNSS Performance.................................................................................................................75
5.2. Reference Design....................................................................................................................76
6Antenna Interfaces.............................................................................................................................77
6.1. Main/Rx-diversity Antenna Interfaces......................................................................................77
6.1.1. Operating Frequencies...................................................................................................77
6.1.2. Reference Design for Main and Rx-diversityAntenna Interfaces..................................79
6.2. Wi-Fi and BluetoothAntenna Interface ...................................................................................80
6.3. GNSS Antenna Interface & Frequency Bands........................................................................81
6.3.1. Passive Antenna Reference Design..............................................................................82
6.3.2. Active Antenna Reference Design.................................................................................82
6.4. RF Routing Guidelines ............................................................................................................83
6.5. Antenna Installation.................................................................................................................85
6.5.1. Antenna Design Requirements......................................................................................85
6.5.2. RF Connector Recommendation ...................................................................................86
7Electrical Characteristics and Reliability........................................................................................88
7.1. Absolute Maximum Ratings.....................................................................................................88
7.2. Power Supply Ratings.............................................................................................................88
7.3. Operating and Storage Temperatures.....................................................................................89
7.4. Power Consumption................................................................................................................89
7.5. Tx Power..................................................................................................................................94
7.6. Rx Sensitivity...........................................................................................................................96
7.7. ESD Protection........................................................................................................................98
8Mechanical Information.....................................................................................................................99
8.1. Mechanical Dimensions...........................................................................................................99
8.2. Recommended Footprint.......................................................................................................101
8.3. Top and Bottom Views ..........................................................................................................102
9Storage, Manufacturing and Packaging........................................................................................103
9.1. Storage Conditions................................................................................................................103
9.2. Manufacturing and Soldering ................................................................................................104

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9.3. Packaging Specification ........................................................................................................105
9.3.1. Carrier Tape..................................................................................................................106
9.3.2. Plastic Reel ..................................................................................................................106
9.3.3. Packaging Process ......................................................................................................107
10 Appendix References......................................................................................................................108

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Table Index
Table 1: SC262R-EM Frequency Bands....................................................................................................13
Table 2: SC262R-NA Frequency Bands.....................................................................................................14
Table 3: SC262R-WF Frequency Bands.................................................................................................... 14
Table 4: Key Features................................................................................................................................ 15
Table 5: I/O Parameters Definition............................................................................................................. 22
Table 6: Pin Description ............................................................................................................................. 22
Table 7: Power Description ........................................................................................................................41
Table 8: Pin Definition of Charging Interface .............................................................................................42
Table 9: Pin Definition of USB Interface..................................................................................................... 43
Table 10: USB Trace Length Inside the Module ........................................................................................ 45
Table 11: Pin Definition of UART Interfaces............................................................................................... 45
Table 12: Pin Definition of (U)SIM Interfaces............................................................................................. 47
Table 13: Pin Definition of SD Card Interface............................................................................................49
Table 14: SD Card Trace Length Inside the Module..................................................................................50
Table 15: Pin Definition of GPIO Interfaces............................................................................................... 51
Table 16: Pin Definition of I2C Interfaces................................................................................................... 54
Table 17: Pin Definition of SPI Interfaces ..................................................................................................54
Table 18: Pin Definition ofADC Interface...................................................................................................55
Table 19: Pin Definition of Vibration Motor Driver Interface....................................................................... 55
Table 20: Pin Definition of LCM Interface ..................................................................................................56
Table 21: Pin Definition of Touch Panel Interface...................................................................................... 59
Table 22: Pin Definition of Camera Interface............................................................................................. 60
Table 23: MIPI Trace Length Inside the Module ........................................................................................ 64
Table 24: Pin Definition of Sensor Interfaces............................................................................................. 66
Table 25: Pin Definition ofAudio Interfaces...............................................................................................66
Table 26: Wi-Fi Transmitting Performance.................................................................................................71
Table 27: Wi-Fi Receiving Performance..................................................................................................... 72
Table 28: Bluetooth Data Rate and Version...............................................................................................74
Table 29: Bluetooth Transmitting and Receiving Performance..................................................................74
Table 30: GNSS Performance.................................................................................................................... 75
Table 31: Pin Definition of Main/Rx-diversityAntenna Interfaces.............................................................. 77
Table 32: SC262R-EM Operating Frequencies .........................................................................................77
Table 33: SC262R-NA Operating Frequencies..........................................................................................78
Table 34: Pin Definition of Wi-Fi/BluetoothAntenna Interface...................................................................80
Table 35: Wi-Fi/Bluetooth Frequency......................................................................................................... 80
Table 36: Pin Definition of GNSSAntenna Interface ................................................................................. 81
Table 37: GNSS Frequency .......................................................................................................................81
Table 38:Antenna Design Requirements ..................................................................................................85
Table 39:Absolute Maximum Ratings........................................................................................................ 88
Table 40: Power Supply Ratings................................................................................................................88
Table 41: Operating and Storage Temperatures........................................................................................ 89

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Table 42: SC262R-EM Power Consumption.............................................................................................. 89
Table 43: SC262R-NA Power Consumption.............................................................................................. 93
Table 44: SC262R-EM RF Output Power.................................................................................................. 94
Table 45: SC262R-NA RF Output Power...................................................................................................95
Table 46: SC262R-EM RF Receiving Sensitivity....................................................................................... 96
Table 47: SC262R-NA RF Receiving Sensitivity........................................................................................97
Table 48: ESD Characteristics (Temperature: 25 ºC, Humidity: 45 %)......................................................98
Table 49: Recommended Thermal Profile Parameters............................................................................105
Table 50: Carrier Tape Dimension Table (Unit: mm)................................................................................106
Table 51: Plastic Reel Dimension Table (Unit: mm)................................................................................. 107
Table 52: Related Documents..................................................................................................................108
Table 53: Terms and Abbreviations..........................................................................................................108