Quectel EC200U Series Supplement

EC200U Series

Hardware Design

LTE Standard Module Series

Version: 1.1.0

Date: 2022-03-01

Status: Preliminary

LTE Standard Module Series

EC200U_Series_Hardware_Design 1 / 94

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and evaluation in designing intended products, and we provide reference designs for illustrative purposes

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of dealing or usage of trade.

To implement module functionality, certain device data are uploaded to Quectel’s or third-party’s servers,

including carriers, chipset suppliers or customer-designated servers. Quectel, strictly abiding by the

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a) We acknowledge no liability for any injury or damage arising from the reliance upon the information.

b) We shall bear no liability resulting from any inaccuracies or omissions, or from the use of the

information contained herein.

c) While we have made every effort to ensure that the functions and features under development are

free from errors, it is possible that they could contain errors, inaccuracies, and omissions. Unless

otherwise provided by valid agreement, we make no warranties of any kind, either implied or express,

and exclude all liability for any loss or damage suffered in connection with the use of features and

functions under development, to the maximum extent permitted by law, regardless of whether such

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information, advertising, commercial offers, products, services, and materials on third-party websites

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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 send the following safety information to users and operating personnel, and incorporate these

guidelines into all manuals supplied with the product. If not so, Quectel assumes no liability for customers’

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) 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 the device offers an Airplane Mode, then it should be

enabled prior to boarding an aircraft. Please consult the airline staff for more

restrictions on the use of wireless devices on boarding the 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 signals and cellular network

cannot be guaranteed to connect in all possible conditions (for example, with

unpaid bills or with an invalid (U)SIM card). When emergent help is needed in such

conditions, please remember using emergency call. 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.

The cellular terminal or mobile contains a transmitter and receiver. When it is ON, it

receives and transmits radio frequency signals. RF interference can occur if it is

used close to TV set, radio, computer or other electric equipment.

In locations with potentially explosive atmospheres, obey all posted signs to turn

off wireless devices such as your phone or other cellular terminals. Areas with

potentially explosive atmospheres include 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, etc.

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About the Document

Revision History

Version

Date

Author

Description

2021-10-08

King MA/

Nathan LIU

Creation of the document

1.0

2021-11-05

King MA/

Nathan LIU

First official release

1.1.0

2022-03-01

Reuben WANG/

Nathan LIU

Added the related content of EC200U-AU

 
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Contents 
Safety Information.......................................................................................................................................3 
About the Document...................................................................................................................................4 
Contents.......................................................................................................................................................1 
Table Index...................................................................................................................................................4 
Figure Index.................................................................................................................................................6 
1Introduction..........................................................................................................................................8 
1. Special Marks............................................................................................................................8 
2Product Overview ................................................................................................................................9 
1. General Description...................................................................................................................9 
2. Key Features ...........................................................................................................................10 
3. Functional Diagram .................................................................................................................12 
4. EVB..........................................................................................................................................13 
3Application Interfaces .......................................................................................................................14 
1. General Description.................................................................................................................14 
2. Pin Assignment........................................................................................................................15 
3. Pin Description.........................................................................................................................16 
4. Operating Modes.....................................................................................................................26 
5. Power Saving...........................................................................................................................27 
5.1. Sleep Mode....................................................................................................................27 
5.1.1. UARTApplication.................................................................................................27 
5.1.2. USB Application with USB Remote Wakeup Function*.......................................28 
5.1.3. USBApplication with USB Suspend/Resume and MAIN_RI Function*..............28 
5.1.4. USB Application...................................................................................................29 
5.2. Airplane Mode................................................................................................................30 
6. Power Supply...........................................................................................................................31 
6.1. Power Supply Pins.........................................................................................................31 
6.2. Voltage Stability Requirements......................................................................................31 
6.3. Reference Design for Power Supply..............................................................................32 
6.4. Monitor the Power Supply..............................................................................................33 
7. Turn on/Turn off/Reset.............................................................................................................33 
7.1. Turn on Module with PWRKEY......................................................................................33 
7.2. Turn off Module..............................................................................................................35 
7.2.1. Turn off Module with PWRKEY............................................................................36 
7.2.2. Turn off Module withAT Command......................................................................36 
7.3. Reset the Module...........................................................................................................37 
8. (U)SIM Interfaces.....................................................................................................................38 
9. USB Interface ..........................................................................................................................40 
10. UART Interfaces......................................................................................................................42 
11. SPI Interface............................................................................................................................44 
12. I2C Interfaces ..........................................................................................................................45 

 
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13. PCM Interface..........................................................................................................................45 
14. Analog Audio Interfaces...........................................................................................................46 
14.1. Notes onAudio Interface Design...................................................................................47 
14.2. Microphone Interface Circuit..........................................................................................47 
14.3. Loudspeaker Interface Circuit........................................................................................48 
15. LCD Interface...........................................................................................................................49 
16. Matrix Keyboard Interface .......................................................................................................49 
17. SD Card Interface....................................................................................................................50 
18. WLAN Application Interface* ...................................................................................................51 
19. ADC Interfaces ........................................................................................................................53 
20. Network Status Indication........................................................................................................53 
21. STATUS...................................................................................................................................55 
22. Behaviors of MAIN_RI.............................................................................................................55 
23. USB_BOOT Interface..............................................................................................................56 
4Antenna Interfaces.............................................................................................................................58 
1. Main Antenna and Wi-Fi Scan/Bluetooth Antenna Interfaces.................................................58 
1.1. Pin Definition..................................................................................................................58 
1.2. Operating Frequency .....................................................................................................59 
1.3. Reference Design of RF Antenna Interfaces.................................................................61 
2. GNSS Antenna Interface.........................................................................................................61 
3. Reference Design of RF Layout..............................................................................................63 
4. Antenna Installation.................................................................................................................65 
4.1. Antenna Requirement....................................................................................................65 
4.2. Recommended RF Connector for Antenna Installation.................................................65 
5Electrical Characteristics, Radio and Reliability............................................................................68 
1. Absolute Maximum Ratings.....................................................................................................68 
2. Power Supply Ratings.............................................................................................................69 
3. Operating and Storage Temperatures.....................................................................................69 
4. Power Consumption................................................................................................................70 
5. Tx Power..................................................................................................................................78 
6. Rx Sensitivity...........................................................................................................................79 
7. ESD..........................................................................................................................................81 
6Mechanical Information.....................................................................................................................83 
1. Mechanical Dimensions...........................................................................................................83 
2. Recommended Footprint.........................................................................................................85 
3. Top and Bottom Views.............................................................................................................86 
7Storage, Manufacturing & Packaging..............................................................................................87 
1. Storage Conditions..................................................................................................................87 
2. Manufacturing and Soldering ..................................................................................................88 
3. Packaging Specifications.........................................................................................................89 
3.1. Carrier Tape....................................................................................................................90 
3.2. Plastic Reel ....................................................................................................................90 

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7.3.3. Packaging Process ........................................................................................................91

8Appendix References........................................................................................................................92

 
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Table Index 
Table 1: Special Marks.................................................................................................................................8 
Table 2: Frequency Bands of EC200U-CN Module..................................................................................... 9 
Table 3: Frequency Bands of EC200U-EU Module..................................................................................... 9 
Table 4: Frequency Bands of EC200U-AU Module................................................................................... 10 
Table 5: Key Features of EC200U Series Module..................................................................................... 10 
Table 6: I/O Parameters Definition.............................................................................................................16 
Table 7: Pin Description .............................................................................................................................16 
Table 8: Overview of Operating Modes......................................................................................................26 
Table 9: VBAT and GND Pins ....................................................................................................................31 
Table 10: Pin Description of PWRKEY....................................................................................................... 33 
Table 11: Pin Description of RESET_N......................................................................................................37 
Table 12: Pin Definition of (U)SIM1 Interface............................................................................................. 38 
Table 13: Pin Definition of (U)SIM2 Interface.............................................................................................39 
Table 14: Pin Description of USB Interface................................................................................................ 41 
Table 15: Pin Definition of Main UART Interface .......................................................................................42 
Table 16: Pin Definition of Debug UART Interface..................................................................................... 43 
Table 17: Pin Definition ofAuxiliary UART Interface.................................................................................. 43 
Table 18: Pin Definition of SPI interface.....................................................................................................44 
Table 19: Pin Definition of I2C Interfaces...................................................................................................45 
Table 20: Pin Definition of PCM Interface.................................................................................................. 45 
Table 21: Pin Definition of AnalogAudio Interfaces................................................................................... 46 
Table 22: Pin Definition of LCD Interface...................................................................................................49 
Table 23: Pin Definition of Matrix Keyboard Interface................................................................................49 
Table 24: Pin Definition of SD Card Interface............................................................................................ 50 
Table 25: Pin Definition of WLAN Interface................................................................................................ 52 
Table 26: Pin Definition ofADC Interfaces.................................................................................................53 
Table 27: Characteristic of ADC Interfaces................................................................................................ 53 
Table 28: Pin Definition of Network Connection Status/Activity Indicator.................................................. 54 
Table 29: Working State of Network Connection Status/Activity Indicator ................................................54 
Table 30: Pin Definition of STATUS............................................................................................................ 55 
Table 31: Behaviors of the MAIN_RI..........................................................................................................56 
Table 32: Pin Definition of USB_BOOT Interface ...................................................................................... 56 
Table 33: Pin Definition ofAntenna Interfaces........................................................................................... 58 
Table 34: EC200U-CN Operating Frequencies.......................................................................................... 59 
Table 35: EC200U-EU Operating Frequencies.......................................................................................... 59 
Table 36: EC200U-AU Operating Frequencies.......................................................................................... 60 
Table 37: Pin Definition of GNSS Antenna Interface .................................................................................61 
Table 38: GNSS Frequency ....................................................................................................................... 62 
Table 39:Antenna Requirements............................................................................................................... 65 
Table 40: Absolute Maximum Ratings........................................................................................................ 68 
Table 41: Power Supply Ratings................................................................................................................ 69 

 
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Table 42: Operating and Storage Temperatures........................................................................................ 70 
Table 43: EC200U-CN Current Consumption............................................................................................ 70 
Table 44: EC200U-EU Current Consumption............................................................................................ 72 
Table 45: EC200U-AU Current Consumption............................................................................................ 75 
Table 46: EC200U-CN RF Output Power...................................................................................................78 
Table 47: EC200U-EU RF Output Power................................................................................................... 78 
Table 48: EC200U-AU RF Output Power................................................................................................... 78 
Table 49: EC200U-CN Conducted RF Receiving Sensitivity..................................................................... 79 
Table 50: EC200U-EU Conducted RF Receiving Sensitivity..................................................................... 80 
Table 51: EC200U-AU Conducted RF Receiving Sensitivity..................................................................... 81 
Table 52: Electrostatics Discharge Characteristics (25 ºC, 45 % Relative Humidity)................................82 
Table 53: Recommended Thermal Profile Parameters..............................................................................89 
Table 54: Carrier Tape Dimension Table (Unit: mm).................................................................................. 90 
Table 55: Plastic Reel Dimension Table (Unit: mm)...................................................................................91 
Table 56: Related Documents.................................................................................................................... 92 
Table 57: Terms and Abbreviations............................................................................................................92 