Quectel Wireless Solutions 201607EC25V User Manual

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EC25-V

User Manual

LTE Module Series

Rev. EC25-V_User_Manual_V1.0

Date: 2016-03-28

www.quectel.com

LTE Module Series

EC25-V User Manual

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

Or Email: Support@quectel.com

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. 2016. All rights reserved.

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About the Document

History

 

Revision

 

 

Date

 

Author

 

Description

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

V1.0

2016-03-28

 

Woody WU

Initial

 

 

 

 

 

 

 

 

 

 

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Contents

About the Document...................................................................................................................................

2

Contents

.......................................................................................................................................................

 

3

Table Index...................................................................................................................................................

 

5

Figure Index .................................................................................................................................................

 

6

1

Introduction ..........................................................................................................................................

 

7

 

1.1. ......................................................................................................................

Safety Information

7

2

Product ..................................................................................................................................Concept

9

 

2.1. ...................................................................................................................

General Description

9

 

2.2. ........................................................................................................

Directives and Standards

10

 

2.2.1. ..............................................................................................................

FCC Statement

10

 

2.3. ...........................................................................................................................

Key Features

10

 

2.4. .................................................................................................................

Functional Diagram

12

 

2.5. .....................................................................................................................

Evaluation Board

13

3

Application .........................................................................................................................Interface

14

 

3.1. .................................................................................................................

General Description

14

 

3.2. ........................................................................................................................

Pin Assignment

14

 

3.3. .........................................................................................................................

Pin Description

16

 

3.4. .....................................................................................................................

Operating Modes

21

 

3.5. ...........................................................................................................................

Power Saving

22

 

3.5.1. ....................................................................................................................

Sleep Mode

22

 

.................................................................................................

3.5.1.1. UART Application

22

 

........................................

3.5.1.2. USB Application with USB Remote Wakeup Function

23

 

..........................

3.5.1.3. USB Application with USB Suspend/Resume and RI Function

23

 

................................................

3.5.1.4. USB Application without USB Suspend Function

24

 

3.5.2. ................................................................................................................

Airplane Mode

25

 

3.6. ...........................................................................................................................

Power Supply

25

 

3.6.1. .........................................................................................................

Power Supply Pins

25

 

3.6.2. ..................................................................................................

Decrease Voltage Drop

26

 

3.6.3. ..............................................................................Reference Design for Power Supply

27

 

3.6.4. ..............................................................................................Monitor the Power Supply

28

 

3.7. .......................................................................................................

Turn on and off Scenarios

28

 

3.7.1. .............................................................................Turn on Module Using the PWRKEY

28

 

3.7.2. ..............................................................................................................

Turn off Module

30

 

.............................................................

3.7.2.1. Turn off Module Using the PWRKEY Pin

30

 

...................................................................

3.7.2.2. Turn off Module Using AT Command

30

 

3.8. .....................................................................................................................

Reset the Module

30

 

3.9. ................................................................................................................

USIM Card Interface

32

 

3.10. ..........................................................................................................................

USB Interface

34

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3.11.

UART Interface ........................................................................................................................

36

 

3.12.

PCM and I2C Interface ............................................................................................................

38

 

3.13.

ADC Function ..........................................................................................................................

41

 

3.14.

Network Status Indication........................................................................................................

41

 

3.15.

STATUS ...................................................................................................................................

42

 

3.16.

Behavior of the RI....................................................................................................................

43

4

GNSS Receiver...................................................................................................................................

45

 

4.1.

General Description.................................................................................................................

45

 

4.2.

GNSS Performance.................................................................................................................

45

 

4.3.

Layout Guideline......................................................................................................................

46

5

Antenna Interface...............................................................................................................................

47

 

5.1.

Main/Rx-diversity Antenna Interface........................................................................................

47

 

5.1.1.

Pin Definition ..................................................................................................................

47

 

5.1.2.

Operating Frequency .....................................................................................................

47

 

5.1.3.

Reference Design ..........................................................................................................

47

 

5.2.

GNSS Antenna Interface .........................................................................................................

48

 

5.3.

Antenna Installation .................................................................................................................

49

 

5.3.1.

Antenna Requirement ....................................................................................................

49

 

5.3.2. Install the Antenna with RF Connector ..........................................................................

50

6 Electrical, Reliability and Radio Characteristics ............................................................................

53

 

6.1.

Absolute Maximum Ratings.....................................................................................................

53

 

6.2.

Power Supply Ratings .............................................................................................................

53

 

6.3.

Operating Temperature............................................................................................................

54

 

6.4.

Current Consumption ..............................................................................................................

54

 

6.5.

RF Output Power.....................................................................................................................

54

 

6.6.

RF Receiving Sensitivity..........................................................................................................

55

 

6.7.

Electrostatic Discharge............................................................................................................

55

7

Mechanical Dimensions ....................................................................................................................

56

 

7.1.

Mechanical Dimensions of the Module....................................................................................

56

 

7.2.

Footprint of Recommendation .................................................................................................

58

 

7.3.

Top View of the Module ...........................................................................................................

59

 

7.4.

Bottom View of the Module......................................................................................................

59

8

Storage and Manufacturing ..............................................................................................................

60

 

8.1.

Storage ....................................................................................................................................

60

 

8.2.

Manufacturing and Welding.....................................................................................................

60

 

8.3.

Packaging ................................................................................................................................

61

9

Appendix A Reference.......................................................................................................................

63

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Table Index

 

TABLE 1: EC25 SERIES FREQUENCY BANDS ................................................................................................

9

TABLE 2: EC25 KEY FEATURES .....................................................................................................................

10

TABLE 3: IO PARAMETERS DEFINITION........................................................................................................

16

TABLE 4: PIN DESCRIPTION...........................................................................................................................

16

TABLE 5: OVERVIEW OF OPERATING MODES.............................................................................................

21

TABLE 6: VBAT AND GND PINS.......................................................................................................................

26

TABLE 7: PWRKEY PIN DESCRIPTION ..........................................................................................................

28

TABLE 8: RESET_N PIN DESCRIPTION .........................................................................................................

31

TABLE 9: PIN DEFINITION OF THE USIM INTERFACE .................................................................................

32

TABLE 10: USB PIN DESCRIPTION ................................................................................................................

34

TABLE 11: PIN DEFINITION OF THE MAIN UART INTERFACE .....................................................................

36

TABLE 12: PIN DEFINITION OF THE DEBUG UART INTERFACE.................................................................

36

TABLE 13: LOGIC LEVELS OF DIGITAL I/O ....................................................................................................

37

TABLE 14: PIN DEFINITION OF PCM AND I2C INTERFACE..........................................................................

39

TABLE 15: PIN DEFINITION OF THE ADC ......................................................................................................

41

TABLE 16: CHARACTERISTIC OF THE ADC ..................................................................................................

41

TABLE 17: PIN DEFINITION OF NETWORK INDICATOR...............................................................................

41

TABLE 18: WORKING STATE OF THE NETWORK INDICATOR.....................................................................

42

TABLE 19: PIN DEFINITION OF STATUS ........................................................................................................

43

TABLE 20: BEHAVIOR OF THE RI ...................................................................................................................

44

TABLE 21: GNSS PERFORMANCE .................................................................................................................

45

TABLE 22: PIN DEFINITION OF THE RF ANTENNA .......................................................................................

47

TABLE 23: THE MODULE OPERATING FREQUENCIES................................................................................

47

TABLE 24: PIN DEFINITION OF GNSS ANTENNA..........................................................................................

48

TABLE 25: GNSS FREQUENCY.......................................................................................................................

49

TABLE 26: ANTENNA REQUIREMENTS..........................................................................................................

49

TABLE 27: ABSOLUTE MAXIMUM RATINGS ..................................................................................................

53

TABLE 28: THE MODULE POWER SUPPLY RATINGS ..................................................................................

53

TABLE 29: OPERATING TEMPERATURE........................................................................................................

54

TABLE 30: CONDUCTED RF OUTPUT POWER .............................................................................................

55

TABLE 31: ELECTROSTATICS DISCHARGE CHARACTERISTICS ...............................................................

55

TABLE 32: RELATED DOCUMENTS................................................................................................................

63

TABLE 33: TERMS AND ABBREVIATIONS......................................................................................................

63

TABLE 34: DESCRIPTION OF DIFFERENT CODING SCHEMES ..................................................................

67

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Figure Index

 

FIGURE 1: FUNCTIONAL DIAGRAM........................................................................................................

12

FIGURE 2: PIN ASSIGNMENT (TOP VIEW).............................................................................................

15

FIGURE 3: UART SLEEP APPLICATION..................................................................................................

22

FIGURE 4: SLEEP APPLICATION WITH USB REMOTE WAKEUP ........................................................

23

FIGURE 5: SLEEP APPLICATION WITH RI .............................................................................................

24

FIGURE 6: SLEEP APPLICATION WITHOUT SUSPEND FUNCTION ....................................................

24

FIGURE 7: POWER SUPPLY LIMITS DURING TRANSMIT BURST .......................................................

26

FIGURE 8: STAR STRUCTURE OF THE POWER SUPPLY....................................................................

27

FIGURE 9: REFERENCE CIRCUIT OF POWER SUPPLY.......................................................................

27

FIGURE 10: TURN ON THE MODULE USING DRIVING CIRCUIT.........................................................

28

FIGURE 11: TURN ON THE MODULE USING KEYSTROKE..................................................................

29

FIGURE 12: TIMING OF TURNING ON MODULE ...................................................................................

29

FIGURE 13: TIMING OF TURNING OFF MODULE..................................................................................

30

FIGURE 14: REFERENCE CIRCUIT OF RESET_N BY USING DRIVING CIRCUIT ..............................

31

FIGURE 15: REFERENCE CIRCUIT OF RESET_N BY USING BUTTON ..............................................

31

FIGURE 16: TIMING OF RESETTING MODULE......................................................................................

32

FIGURE 17: REFERENCE CIRCUIT OF 8-PIN USIM CONNECTOR......................................................

33

FIGURE 18: REFERENCE CIRCUIT OF 6-PIN USIM CONNECTOR......................................................

33

FIGURE 19: REFERENCE CIRCUIT OF USB APPLICATION .................................................................

35

FIGURE 20: REFERENCE CIRCUIT WITH TRANSLATOR CHIP............................................................

37

FIGURE 21: REFERENCE CIRCUIT WITH TRANSISTOR CIRCUIT ......................................................

38

FIGURE 22: PRIMARY MODE TIMING.....................................................................................................

39

FIGURE 23: AUXILIARY MODE TIMING...................................................................................................

39

FIGURE 24: REFERENCE CIRCUIT OF PCM APPLICATION WITH AUDIO CODEC ............................

40

FIGURE 25: REFERENCE CIRCUIT OF THE NETWORK INDICATOR..................................................

42

FIGURE 26: REFERENCE CIRCUIT OF THE STATUS............................................................................

43

FIGURE 27: REFERENCE CIRCUIT OF ANTENNA INTERFACE ...........................................................

48

FIGURE 28: REFERENCE CIRCUIT OF GNSS ANTENNA .....................................................................

49

FIGURE 29: DIMENSIONS OF THE UF.L-R-SMT CONNECTOR (UNIT: MM) ........................................

50

FIGURE 30: MECHANICALS OF UF.L-LP CONNECTORS .....................................................................

51

FIGURE 31: SPACE FACTOR OF MATED CONNECTOR (UNIT: MM) ...................................................

52

FIGURE 32: MODULE TOP AND SIDE DIMENSIONS.............................................................................

56

FIGURE 33: MODULE BOTTOM DIMENSIONS (BOTTOM VIEW) .........................................................

57

FIGURE 34: RECOMMENDED FOOTPRINT (TOP VIEW) ......................................................................

58

FIGURE 35: TOP VIEW OF THE MODULE ..............................................................................................

59

FIGURE 36: BOTTOM VIEW OF THE MODULE ......................................................................................

59

FIGURE 37: LIQUIDS TEMPERATURE ....................................................................................................

61

FIGURE 38: CARRIER TAPE ....................................................................................................................

62

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1 Introduction

This document defines the EC25 module and describes its air interface and hardware interface which are connected with your application.

This document can help you quickly understand module interface specifications, electrical and mechanical details, as well as other related information of EC25 module. Associated with application notes and user guide, you can use EC25 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 EC25 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 assumes no liability for the customer’s 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. 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 is switched off. The operation of wireless appliances in an aircraft is forbidden, so as 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, clinics or other health care facilities. These requests are desinged to prevent possible interference with sentitive medical equipment.

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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. In order to make or receive a 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 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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2 Product Concept

2.1. General Description

EC25 contains four variants: EC25-E, EC25-A, EC25-V and EC25-AUT. You can choose the dedicated type based on the region or operator. The following table shows the frequency bands of EC25 series modules.

Table 1: EC25 Series Frequency Bands

EC25-V

FDD-LTE

B4/B13

(with Rx-diversity)

 

TDD-LTE

Not supported

(with Rx-diversity)

 

 

 

WCDMA

Not supported

(with Rx-diversity)

 

 

 

GSM

Not supported

 

 

GNSS

GPS,GLONASS,

BeiDou/Compass,Galileo,QZSS

 

NOTES

1. 1) GNSS function is optional.

2. 2) EC25-V includes Data-only and Telematics versions. Data-only version does not support voice function, while Telematics version supports it.

With a tiny profile of 32.0mm × 29.0mm × 2.4mm, EC25 can meet almost all requirements for M2M applications such as automotive, metering, tracking system, security, router, wireless POS, mobile computing device, PDA phone and tablet PC, etc.

EC25 is an SMD type module which can be embedded in applications through its 144-pin pads, including 80 LCC signal pads and 64 other pads.

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2.2. Directives and Standards

2.2.1. FCC Statement

Any Changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment.

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.

2.3. Key Features

The following table describes the detailed features of EC25 module.

Table 2: EC25 Key Features

 

Feature

 

 

Details

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Power Supply

 

Supply voltage: 3.3V~4.3V

Typical supply voltage: 3.8V

 

 

 

 

 

 

 

 

 

 

Support up to non-CA CAT4

 

Transmitting Power

 

Support 1.4 to 20MHz RF bandwidth

 

FDD: Max 50Mbps (UL), 150Mbps (DL)

 

 

 

 

 

 

 

 

TDD: Max 35Mbps (UL), 130Mbps (DL)

 

 

 

LTE Features

 

Support 16-QAM, 64-QAM and QPSK modulation

Text and PDU mode

Internet Protocol Features Point to point MO and MT

SMS cell broadcast

SMS storage: ME by default

SMS

Support USIM/SIM card: 1.8V, 3.0V

Used for audio function with external codec

USIM Interface Support 8-bit A-law, μ-law and 16-bit linear data formats Support long frame sync and short frame sync

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Support master and slave mode, but must be the master in long frame sync

Compliant with USB 2.0 specification (slave only); the data transfer rate

 

 

can reach up to 480Mbps

 

 

Audio Features

Used for AT command communication, data transmission, GNSS NMEA

 

 

output, software debug and firmware upgrade

 

 

 

 

 

 

USB Driver: Windows XP, Windows Vista, Windows 7, Windows 8/8.1,

 

 

 

Window CE 5.0/6.0/7.0, Linux 2.6 or later, Android 2.3/4.0/4.2/4.4/5.0

 

 

 

 

 

 

 

Main UART:

 

 

 

Used for AT command and data transmission

 

 

 

Baud rate reach up to 921600bps, 115200bps by default

 

 

PCM Interface

Support RTS and CTS hardware flow control

 

 

 

Debug UART:

 

 

 

Used for Linux console, log output

 

 

 

115200bps baud rate

 

 

 

 

 

 

USB Interface

Support LTE Rx-diversity

 

 

 

 

 

 

UART Interface

Gen8C-Lite of Qualcomm

 

 

Protocol: NMEA 0183

 

 

 

 

 

GNSS Features

Two pins including NET_MODE and NET_STATUS to indicate network

 

 

connectivity status

 

 

 

 

 

AT Commands

Including main antenna (ANT_MAIN), Rx-diversity antenna (ANT_DIV) and

 

 

GNSS antenna (ANT_GNSS)

 

 

 

 

 

 

 

 

 

Network Indication

Size: 32.0±0.15 × 29.0±0.15 × 2.4±0.2mm

 

 

Weight: approx. 4.9g

 

 

 

 

 

 

 

 

 

 

Normal operation: -35°C ~ +75°C

 

 

Antenna Interface

Restricted operation: -40°C ~ -35°C and +75°C ~ +85°C

 

 

 

Storage temperature: -45°C ~ +90°C

 

 

Physical Characteristics

USB interface

 

 

 

 

 

 

Temperature Range

All hardware components are fully compliant with EU RoHS directive

 

 

 

 

 

 

Firmware Upgrade

 

 

 

 

 

 

 

RoHS

 

 

 

 

 

 

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2.4. Functional Diagram

The following figure shows a block diagram of EC25 and illustrates the major functional parts.

Power management

 

 

 

 

 

 

Baseband

 

 

 

 

 

 

 

DDR+NAND flash

 

 

 

 

 

 

Radio frequency

 

 

 

 

 

 

 

Peripheral interface

 

 

 

 

 

 

 

 

 

ANT_MAIN

ANT_GNSS

ANT_DIV

 

 

 

 

Switch

 

SAW

Switch

 

 

 

 

Duplex

 

LNA

 

 

 

VBAT_RF

 

 

 

 

SAW

 

 

PA

 

 

 

 

 

 

 

APT

 

 

 

 

 

 

 

PRx

 

 

DRx

 

 

 

 

 

 

 

 

 

 

 

 

Tx

 

 

 

 

 

 

 

 

 

Transceiver

 

 

NAND

 

 

 

 

 

 

DDR2

 

 

 

 

 

 

 

 

SDRAM

 

 

 

IQ

 

Control

 

 

VBAT_BB

PMIC

 

 

 

 

 

 

 

 

Control

 

 

 

 

 

 

PWRKEY

 

 

 

 

 

 

 

 

 

 

Baseband

 

 

RESET_N

 

 

 

 

 

 

 

 

 

 

 

 

 

ADCs

 

 

 

 

 

 

 

 

STATUS

 

19.2M

 

 

 

 

 

 

 

 

XO

 

 

 

 

 

 

 

VDD_EXT

USB

USIM

PCM

I2C

UART

GPIOs

Figure 1: Functional Diagram

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2.5. Evaluation Board

In order to help you to develop applications with EC25, Quectel supplies an evaluation board (EVB), USB data cable, earphone, antenna and other peripherals to control or test the module.

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3 Application Interface

3.1. General Description

EC25 is equipped with an 80-pin SMT pad plus 64-pin ground pads and reserved pads that can be connected to cellular application platform. Sub-interfaces included in these pads are described in detail in the following chapters:

Power supply

USIM interface

USB interface

UART interface

PCM interface

ADC interface

Status indication

3.2. Pin Assignment

The following figure shows the pin assignment of the EC25 module.

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WAKEUP_IN 1

AP_READY 2

RESERVED 3 W_DISABLE# 4

NET_MODE 5

NET_STATUS 6 VDD_EXT 7

RESERVED 141

RESERVED 142

GND 8

GND 9

USIM_GND 10

DBG_RXD 11

DBG_TXD 12

USIM_PRESENCE 13

USIM_VDD 14

USIM_DATA 15

USIM_CLK 16

USIM_RST 17

RESERVED 18

RESERVED

RESERVED

GND

VBUS USB

DM USB

DP USB

RXD

TXD

DTR

RTS

CTS

DCD

RI

STATUS

BB VBAT

BB VBAT

RF VBAT

RF VBAT

GND

RESERVED

 

114

113

72

71

70

69

68

67

66

65

64

63

62

61

60

59

58

57

56

55

GND

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

54

129

117

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

53

GND

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

52

 

 

 

108

 

103

 

99

 

 

95

 

90

 

 

85

 

 

GND

130

118

 

 

 

 

 

 

 

 

 

51

GND

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

131

119

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

50

GND

132

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

49

ANT_MAIN

120

109

 

104

 

100

 

 

96

 

91

 

 

86

 

 

48

GND

 

 

 

 

 

 

 

 

 

 

 

133

121

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

144

RESERVED

134

122

 

 

 

 

 

82

79

76

73

 

 

 

 

 

 

 

143

RESERVED

110

 

105

83

80

77

74

 

92

 

 

87

 

 

47

ANT_GNSS

 

 

 

 

 

 

 

 

135

123

 

 

 

 

 

84

81

78

75

 

 

 

 

 

 

 

46

GND

136

124

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

45

ADC0

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

44

ADC1

 

 

111

 

106

 

101

 

 

97

 

93

 

 

88

 

 

137

125

 

 

 

 

 

 

 

 

 

43

RESERVED

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

I2C_SDA

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

42

 

138

 

 

126

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

I2C_SCL

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

41

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

98

 

 

 

 

94

 

 

 

 

 

89

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

139

 

 

127

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

112

 

 

107

 

 

102

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

40

 

RESERVED

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

RESERVED

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

39

 

140

 

 

128

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

RESERVED

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

38

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

RESERVED

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

37

 

 

116

 

 

115

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

19

 

20

 

21

 

22

 

23

 

24

 

25

 

26

 

27

 

28

 

 

29

 

30

 

31

 

32

 

 

33

 

 

34

 

35

 

36

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

RESERVED

 

 

RESERVED

GND

N RESET

PWRKEY

GND

RESERVED

IN PCM

 

OUT PCM

SYNC PCM

CLK PCM

RESERVED

RESERVED

RESERVED

RESERVED

RESERVED

RESERVED

RESERVED

DIV ANT

GND

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Power Pins

 

 

 

 

 

 

 

GND Pins

 

 

 

 

 

 

 

 

 

 

 

Signal Pins

 

 

 

 

 

 

 

 

 

 

 

RESERVED Pins

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Figure 2: Pin Assignment (Top View)

NOTES

1.Keep all RESERVED pins and unused pins unconnected.

2.GND pads 85~112 should be connected to ground in the design, and RESERVED pads 73~84 should not be designed in schematic and PCB decal.

3.“ ” means these interface functions are only supported on Telematics version.

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EC25-V User Manual

3.3. Pin Description

The following tables show the EC25’s pin definition.

Table 3: IO Parameters Definition

 

 

Type

Description

 

 

 

 

IO

Bidirectional input/output

 

 

DI

Digital input

 

 

DO

Digital output

 

 

PI

Power input

 

 

PO

Power output

 

 

AI

Analog input

 

 

AO

Analog output

 

 

OD

Open drain

 

 

Table 4: Pin Description

Power Supply

 

 

 

 

 

 

 

 

 

Pin Name

Pin No.

I/O

Description

DC Characteristics

Comment

 

 

 

 

 

 

 

 

 

 

 

 

Power supply for

Vmax=4.3V

It must be able to

 

VBAT_BB

59, 60

PI

module baseband

Vmin=3.3V

provide sufficient

 

 

 

 

part.

Vnorm=3.8V

current up to 0.8A.

 

 

 

 

 

 

Vmax=4.3V

It must be able to

 

 

 

 

Power supply for

provide sufficient

 

VBAT_RF

57, 58

PI

Vmin=3.3V

 

module RF part.

current up to 1.8A in a

 

 

 

 

Vnorm=3.8V

 

 

 

 

 

transmitting burst.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Provide 1.8V for

Vnorm=1.8V

Power supply for

 

VDD_EXT

7

PO

external GPIO’s pull up

 

external circuit.

IOmax=50mA

 

 

 

 

circuits.

 

 

 

 

 

 

 

 

8, 9, 19,

 

 

 

 

 

 

GND

22, 36, 46,

 

Ground.

 

 

 

 

48, 50~54,

 

 

 

 

 

 

 

 

 

 

 

 

 

56, 72,

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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85~112

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Turn on/off

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Pin Name

Pin No.

I/O

Description

DC Characteristics

Comment

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Turn on/off the

VIHmax=2.1V

 

 

 

PWRKEY

21

DI

VIHmin=1.3V

 

 

 

module.

 

 

 

 

 

 

 

VILmax=0.5V

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

VIHmax=2.1V

 

 

 

RESET_N

20

DI

Reset the module.

VIHmin=1.3V

 

 

 

 

 

 

 

 

VILmax=0.5V

 

 

 

 

Status Indication

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Pin Name

Pin No.

I/O

Description

DC Characteristics

Comment

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Indicate the module

The drive current

Require external

 

STATUS

61

OD

should be less than

pull-up. If unused,

 

operating status.

 

 

 

 

 

0.9mA.

keep it open.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Indicate the module

VOHmin=1.35V

1.8V power domain.

 

NET_MODE

5

DO

network registration

If unused, keep it

 

VOLmax=0.45V

 

 

 

 

 

mode.

open.

 

 

 

 

 

 

 

 

NET_

 

 

Indicate the module

VOHmin=1.35V

1.8V power domain.

 

6

DO

network activity

If unused, keep it

 

STATUS

VOLmax=0.45V

 

 

 

status.

open.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

USB Interface

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Pin Name

Pin No.

I/O

Description

DC Characteristics

Comment

 

 

 

 

 

 

 

 

 

USB_VBUS

71

PI

USB detection.

Vnorm=5.0V

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

USB differential data

Compliant with USB

Require differential

 

USB_DP

69

IO

2.0 standard

 

 

 

 

 

bus.

specification.

impedance of 90ohm.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

USB differential data

Compliant with USB

Require differential

 

USB_DM

70

IO

2.0 standard

 

 

 

 

 

bus.

specification.

impedance of 90ohm.

 

 

 

 

 

 

 

 

 

 

USIM Interface

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Pin Name

Pin No.

I/O

Description

DC Characteristics

Comment

 

 

 

 

 

 

 

 

 

 

USIM_GND

10

 

Specified ground for

 

 

 

 

 

USIM card.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Power supply for

For 1.8V USIM:

Either 1.8V or 3V is

 

USIM_VDD

14

PO

Vmax=1.9V

supported by the

 

USIM card.

 

 

 

 

 

Vmin=1.7V

module automatically.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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For 3.0V USIM:

Vmax=3.05V

Vmin=2.7V

IOmax=50mA

For 1.8V USIM:

 

 

 

 

 

 

VILmax=0.6V

 

 

 

 

 

 

 

 

VIHmin=1.2V

 

 

 

 

 

 

 

 

VOLmax=0.45V

 

 

 

 

 

 

 

Data signal of USIM

VOHmin=1.35V

 

 

 

USIM_DATA

15

IO

 

 

 

 

card.

 

 

 

 

 

 

 

 

For 3.0V USIM:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

VILmax=1.0V

 

 

 

 

 

 

 

 

VIHmin=1.95V

 

 

 

 

 

 

 

 

VOLmax=0.45V

 

 

 

 

 

 

 

 

VOHmin=2.55V

 

 

 

 

 

 

 

 

For 1.8V USIM:

 

 

 

 

 

 

 

 

VOLmax=0.45V

 

 

 

USIM_CLK

16

DO

Clock signal of USIM

VOHmin=1.35V

 

 

 

card.

 

 

 

 

 

 

 

 

For 3.0V USIM:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

VOLmax=0.45V

 

 

 

 

 

 

 

 

VOHmin=2.55V

 

 

 

 

 

 

 

 

For 1.8V USIM:

 

 

 

 

 

 

 

 

VOLmax=0.45V

 

 

 

 

 

 

 

Reset signal of

VOHmin=1.35V

 

 

 

USIM_RST

17

DO

 

 

 

 

USIM card.

 

 

 

 

 

 

 

 

For 3.0V USIM:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

VOLmax=0.45V

 

 

 

 

 

 

 

 

VOHmin=2.55V

 

 

 

 

 

 

 

 

VILmin=-0.3V

1.8V power domain.

 

USIM_

 

 

USIM card insertion

VILmax=0.6V

 

13

DI

If unused, keep it

 

PRESENCE

detection.

VIHmin=1.2V

 

 

 

open.

 

 

 

 

 

 

VIHmax=2.0V

 

 

 

 

 

 

 

 

 

 

UART Interface

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Pin Name

Pin No.

I/O

Description

DC Characteristics

Comment

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

VOLmax=0.45V

1.8V power domain.

 

RI

62

DO

Ring indicator

If unused, keep it

 

VOHmin=1.35V

 

 

 

 

 

 

open.

 

 

 

 

 

 

 

 

 

 

 

 

 

Data carrier

VOLmax=0.45V

1.8V power domain.

 

DCD

63

DO

If unused, keep it

 

detection.

VOHmin=1.35V

 

 

 

 

 

open.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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VOLmax=0.45V

1.8V power domain.

 

CTS

64

DO

Clear to send.

If unused, keep it

 

VOHmin=1.35V

 

 

 

 

 

 

open.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

VILmin=-0.3V

1.8V power domain.

 

 

 

 

 

 

VILmax=0.6V

 

RTS

65

DI

Request to send.

If unused, keep it

 

VIHmin=1.2V

 

 

 

 

 

 

open.

 

 

 

 

 

 

VIHmax=2.0V

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1.8V power domain.

 

 

 

 

 

 

VILmin=-0.3V

Pull-up by default.

 

DTR

66

DI

Data terminal ready,

VILmax=0.6V

Low level wakes up

 

sleep mode control.

VIHmin=1.2V

the module.

 

 

 

 

 

 

 

 

 

 

 

VIHmax=2.0V

If unused, keep it

 

 

 

 

 

 

 

open.

 

 

 

 

 

 

 

VOLmax=0.45V

1.8V power domain.

 

TXD

67

DO

Transmit data.

If unused, keep it

 

VOHmin=1.35V

 

 

 

 

 

 

open.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

VILmin=-0.3V

1.8V power domain.

 

 

 

 

 

 

VILmax=0.6V

 

RXD

68

DI

Receive data.

If unused, keep it

 

VIHmin=1.2V

 

 

 

 

 

 

open.

 

 

 

 

 

 

VIHmax=2.0V

 

 

 

 

 

 

 

 

 

 

Debug UART Interface

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Pin Name

Pin No.

I/O

Description

DC Characteristics

Comment

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

VOLmax=0.45V

1.8V power domain.

 

DBG_TXD

12

DO

Transmit data.

If unused, keep it

 

VOHmin=1.35V

 

 

 

 

 

 

open.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

VILmin=-0.3V

1.8V power domain.

 

 

 

 

 

 

VILmax=0.6V

 

DBG_RXD

11

DI

Receive data.

If unused, keep it

 

VIHmin=1.2V

 

 

 

 

 

 

open.

 

 

 

 

 

 

VIHmax=2.0V

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ADC Interface

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Pin Name

Pin No.

I/O

Description

DC Characteristics

Comment

 

 

 

 

 

 

 

 

 

 

 

 

 

 

General purpose

Voltage range:

If unused, keep it

 

ADC0

45

AI

analog to digital

 

0.3V to VBAT_BB

open.

 

 

 

 

 

converter.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

General purpose

Voltage range:

If unused, keep it

 

ADC1

44

AI

analog to digital

 

0.3V to VBAT_BB

open.

 

 

 

 

 

converter.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PCM Interface

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Pin Name

Pin No.

I/O

Description

DC Characteristics

Comment

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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VILmin=-0.3V

1.8V power domain.

 

 

 

 

 

VILmax=0.6V

 

PCM_IN

24

DI

PCM data input.

If unused, keep it

 

VIHmin=1.2V

 

 

 

 

 

open.

 

 

 

 

 

VIHmax=2.0V

 

 

 

 

 

 

 

 

 

 

 

 

VOLmax=0.45V

1.8V power domain.

 

PCM_OUT

25

DO

PCM data output.

If unused, keep it

 

VOHmin=1.35V

 

 

 

 

 

open.

 

 

 

 

 

 

 

 

 

 

 

 

VOLmax=0.45V

1.8V power domain.

 

 

 

 

 

VOHmin=1.35V

In master mode, it is

 

 

 

 

PCM data frame

VILmin=-0.3V

an output signal. In

 

PCM_SYNC

26

IO

slave mode, it is an

 

sync signal.

VILmax=0.6V

 

 

 

 

input signal.

 

 

 

 

 

VIHmin=1.2V

If unused, keep it

 

 

 

 

 

VIHmax=2.0V

open.

VOLmax=0.45V

VOHmin=1.35V

PCM_CLK 27 IO PCM clock. VILmin=-0.3V VILmax=0.6V

VIHmin=1.2V

VIHmax=2.0V

1.8V power domain. In master mode, it is an output signal. In slave mode, it is an input signal.

If unused, keep it open.

I2C Interface

 

 

 

 

 

 

Pin Name

Pin No.

I/O

Description

DC Characteristics

Comment

 

 

 

 

 

 

 

 

 

I2C serial clock.

 

External pull-up

 

 

 

 

resistor is required.

I2C_SCL

41

OD

Used for external

 

 

1.8V only. If unused,

 

 

 

codec.

 

 

 

 

 

keep it open.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

I2C serial data.

 

External pull-up

 

 

 

 

resistor is required.

I2C_SDA

42

OD

Used for external

 

 

1.8V only. If unused,

 

 

 

codec.

 

 

 

 

 

keep it open.

 

 

 

 

 

 

 

 

 

 

 

RF Interface

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Pin Name

Pin No.

I/O

Description

DC Characteristics

Comment

 

 

 

 

 

 

 

 

 

 

ANT_DIV

35

AI

Diversity antenna.

50ohm impedance.

If unused, keep it

 

open.

 

 

 

 

 

 

 

 

ANT_MAIN

49

IO

Main antenna.

50ohm impedance.

 

 

 

 

 

 

 

 

 

 

 

 

ANT_GNSS

47

AI

GNSS antenna.

50ohm impedance.

If unused, keep it

 

open.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

GPIO Pins

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Pin Name

Pin No.

I/O

Description

DC Characteristics

Comment

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

EC25-V_User_Manual

 

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