Quectel EM06 User manual

EM06 Series
Hardware Design
LTE-A Module Series
Version: 1.4
Date: 2020-12-21
Status: Released
www.quectel.com

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accept any liability for any injury, loss or damage of any kind incurred by use of or reliance upon the
information.All information supplied herein is subject to change without prior notice.
Disclaimer
While Quectel has made efforts to ensure that the functions and features under development are free
from errors, it is possible that these functions and features could contain errors, inaccuracies and
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Copyright
The information contained here is proprietary technical information of Quectel. Transmitting, reproducing,
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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. 2020. All rights reserved.

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About the Document
Revision History
Version
Date
Author
Description
1.0
2018-07-17
King MA/
Wison HE
Initial
1.1
2019-10-31
Jared WANG/
Jeremy LI
1. Updated CA feature of EM06-A (Table 1).
2. Updated Internet protocol features of EM06 (Table
2).
3. Deleted information about USB 3.0 and changed
USB 3.0 pins into NC pins (Figure 2 and Table 4).
4. Added operating modes (Chapter 3.3)
5. Added GNSS performance (Chapter 4.2)
6. Updated EM06-A current consumption (Table 35).
Added EM06-A conducted RF receiving sensitivity
(Table 39).
7. Variant EM06-A, function DFOTA and dual SIM
single standby have been fully developed.
1.2
2019-11-11
Jeremy LI
1. Updated GNSS performance (Table 21).
2. Updated the reference circuit of (U)SIM interface
with normally closed (U)SIM card connector (Figure
13) and the reference circuit of (U)SIM interface with
normally open (U)SIM card connector (Figure 14).
1.3
2020-09-07
Jada LIN/
Jerax KONG
1. Updated the definition of
FULL_CARD_POWER_OFF# (Table 7).
2. Updated the timing of turning on module (Figure 8)
and the timing of turning off the module through
FULL_CARD_POWER_OFF# (Figure 9).
3. Added the timing of (U)SIM (Figure 16) and the
timing of hot-plug (Figure 17).
4. Deleted the information about active antenna (Table
26).

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5. Deleted the information about EM06-LA.
6. Added a reference design for power supply circuit
with buck DC-DC converter (Figure 5).
1.4
2020-12-21
Eysen Wang/
Archibald JIANG
1. Updated the current consumption of EM06-E in
Chapter 31.
2. Deleted M.2 Socket 2 USB 3.0-Based Pinout row in
Table 4.

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Contents
About the Document...................................................................................................................................3
Contents.......................................................................................................................................................5
Table Index...................................................................................................................................................7
Figure Index.................................................................................................................................................8
1Introduction..........................................................................................................................................9
1.1. Safety Information.....................................................................................................................10
2Product Concept................................................................................................................................11
2.1. General Description..................................................................................................................11
2.2. Key Features.............................................................................................................................12
2.3. Functional Diagram...................................................................................................................15
2.4. Evaluation Board.......................................................................................................................15
3Application Interfaces .......................................................................................................................16
3.1. Pin Assignment .........................................................................................................................17
3.2. Pin Description..........................................................................................................................18
3.3. Operating Modes.......................................................................................................................22
3.4. Power Supply............................................................................................................................23
3.4.1. Decrease Voltage Drop..................................................................................................23
3.4.2. Reference Design of Power Supply...............................................................................24
3.5. Turn On/Off ...............................................................................................................................25
3.5.1. Turn On the Module .......................................................................................................25
3.5.1.1. Turn On through GPIO Controlled FULL_CARD_POWER_OFF#.....................25
3.5.1.2. Turn On Automatically.........................................................................................25
3.5.2. Turn Off the Module .......................................................................................................27
3.5.2.1. Turn Off through FULL_CARD_POWER_OFF#.................................................27
3.5.2.2. Turn Off via AT Command...................................................................................27
3.6. Reset the Module......................................................................................................................27
3.7. (U)SIM Interfaces......................................................................................................................29
3.8. USB Interface............................................................................................................................33
3.9. PCM and I2C Interfaces............................................................................................................34
3.10. Control and Indication Interface................................................................................................37
3.10.1. W_DISABLE1#...............................................................................................................37
3.10.2. WWAN_LED#.................................................................................................................38
3.10.3. WAKE_ON_WAN#.........................................................................................................39
3.10.4. DPR Signal.....................................................................................................................40
3.11. Antenna Tuner Control Interface*.............................................................................................40
3.12. Configuration Pins.....................................................................................................................41
4GNSS Receiver...................................................................................................................................42
4.1. General Description..................................................................................................................42
4.2. GNSS Performance..................................................................................................................42

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5Antenna Connection..........................................................................................................................44
5.1. Main/Rx-diversity/GNSS Antenna Connectors.........................................................................44
5.1.1. Antenna Connectors ......................................................................................................44
5.1.2. Operating Frequencies...................................................................................................45
5.1.2.1. Cellular Operating Frequencies..........................................................................45
5.1.2.2. GNSS Operating Frequencies............................................................................47
5.2. Antenna Installation...................................................................................................................47
5.2.1. Antenna Requirements ..................................................................................................47
5.2.2. Antenna Connectors and Mating Plugs.........................................................................48
6Electrical, Reliability and Radio Characteristics............................................................................51
6.1. Absolute Maximum Ratings......................................................................................................51
6.2. Power Supply Requirements ....................................................................................................51
6.3. I/O Requirements......................................................................................................................52
6.4. Current Consumption................................................................................................................52
6.5. RF Output Power ......................................................................................................................58
6.6. RF Receiving Sensitivity...........................................................................................................59
6.7. ESD Characteristics..................................................................................................................61
6.8. Thermal Dissipation ..................................................................................................................61
7Mechanical Dimensions and Packaging .........................................................................................63
7.1. Mechanical Dimensions of the Module.....................................................................................63
7.2. Standard Dimensions of M.2 PCI Express ...............................................................................64
7.3. Design Effect Drawings of the Module......................................................................................65
7.4. M.2 Connector...........................................................................................................................66
7.5. Packaging .................................................................................................................................66
8Appendix References........................................................................................................................67

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Table Index
Table 1: Frequency Bands, CA Combinations and GNSS Types Supported.............................................11
Table 2: Key Features of EM06 Series ...................................................................................................... 12
Table 3: Definition of I/O Parameters......................................................................................................... 18
Table 4: Pin Description .............................................................................................................................18
Table 5: Overview of Operating Modes...................................................................................................... 22
Table 6: Definition of VCC and GND Pins..................................................................................................23
Table 7: Pin Definition of FULL_CARD_POWER_OFF#........................................................................... 25
Table 8: Pin Definition of RESET#............................................................................................................. 27
Table 9: Pin Definition of (U)SIM Interfaces...............................................................................................29
Table 10: Pin Definition of USB Interface...................................................................................................33
Table 11: Pin Definition of PCM and I2C Interfaces...................................................................................36
Table 12: Pin Definition of Control and Indication Interfaces.....................................................................37
Table 13: Airplane Mode Controlled by Hardware .....................................................................................38
Table 14: Airplane Mode Controlled by Software.......................................................................................38
Table 15: Network Status Indication by WWAN_LED# Signal................................................................... 39
Table 16: State of the WAKE_ON_WAN# Signal.......................................................................................39
Table 17: Function of the DPR Signal........................................................................................................ 40
Table 18: Pin Definition ofAntenna Tuner Control Interface......................................................................41
Table 19: Definitions of Configuration Pins................................................................................................41
Table 20: List of Configuration Pins ...........................................................................................................41
Table 21: GNSS Performance.................................................................................................................... 42
Table 22: EM06-E Operating Frequencies................................................................................................. 45
Table 23: EM06-J Operating Frequencies................................................................................................. 45
Table 24: EM06-A Operating Frequencies.................................................................................................46
Table 25: GNSS Frequencies.....................................................................................................................47
Table 26: Antenna Requirements...............................................................................................................47
Table 27: Major Specifications of Antenna Connectors .............................................................................49
Table 28: Absolute Maximum Ratings........................................................................................................51
Table 29: Power Supply Requirements...................................................................................................... 51
Table 30: I/O Requirements .......................................................................................................................52
Table 31: EM06-E Current Consumption................................................................................................... 52
Table 32: EM06-J Current Consumption....................................................................................................55
Table 33: EM06-A Current Consumption ...................................................................................................57
Table 34: RF Output Power........................................................................................................................ 58
Table 35: EM06-E Conducted RF Receiving Sensitivity............................................................................ 59
Table 36: EM06-J Conducted RF Receiving Sensitivity ............................................................................ 59
Table 37: EM06-AConducted RF Receiving Sensitivity............................................................................60
Table 38: Electrostatic Discharge Characteristics (Temperature: 25 ºC , Humidity: 40 %)........................ 61
Table 39: Related Documents....................................................................................................................67
Table 40: Terms and Abbreviations............................................................................................................ 67

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Figure Index
Figure 1: Functional Diagram..................................................................................................................... 15
Figure 2: Pin Assignment...........................................................................................................................17
Figure 3: Voltage Drop Limits during Radio Transmission......................................................................... 23
Figure 4: Reference Design of VCC ..........................................................................................................24
Figure 5: Reference Design of Power Supply............................................................................................24
Figure 6: Turn on the Module Through GPIO Controlled FULL_CARD_POWER_OFF#......................... 25
Figure 7: Turn on the ModuleAutomatically ..............................................................................................26
Figure 8: Timing of Turning on Module...................................................................................................... 26
Figure 9: Timing of Turning off the Module Through FULL_CARD_POWER_OFF# ................................27
Figure 10: Reference Design of Resetting Using Driving Circuit............................................................... 28
Figure 11: Reference Design of Resetting Using Button........................................................................... 28
Figure 12: Timing of Resetting Module...................................................................................................... 28
Figure 13: Reference Design of (U)SIM Interface with Normally Closed (U)SIM Card Connector........... 30
Figure 14: Reference Design of (U)SIM Interface with Normally Open (U)SIM Card Connector............. 30
Figure 15: Reference Design of (U)SIM Interface with a 6-Pin (U)SIM Card Connector..........................31
Figure 16: Timing of (U)SIM.......................................................................................................................31
Figure 17: Timing of Hot Plugging..............................................................................................................32
Figure 18: Reference Design of USB 2.0 Interface................................................................................... 33
Figure 19: Primary Mode Timing................................................................................................................35
Figure 20: Auxiliary Mode Timing............................................................................................................... 35
Figure 21: Reference Design of PCMApplication withAudio Codec........................................................ 36
Figure 22: Reference Design of WWAN_LED#......................................................................................... 38
Figure 23: WAKE_ON_WAN# Behavior ....................................................................................................39
Figure 24: Reference Design of WAKE_ON_WAN#.................................................................................. 40
Figure 25:Antenna Connectors on the Module......................................................................................... 44
Figure 26: Dimensions of the Receptacles (Unit: mm).............................................................................. 48
Figure 27: Specifications of Mating Plugs with Ø 0.81 mm Coaxial Cables.............................................. 49
Figure 28: Connect Receptacle and Mating Plug Using Ø 0.81 mm Coaxial Cable................................. 50
Figure 29: Connect Receptacle and Mating Plug Using Ø 1.13 mm Coaxial Cable................................. 50
Figure 30: Thermal Dissipation Area on Bottom Side of Module (Top View)............................................. 62
Figure 31: Mechanical Dimensions of EM06 Series (Unit: mm)................................................................ 63
Figure 32: Standard Dimensions of M.2 Type 3042-S3 (Unit: mm)........................................................... 64
Figure 33: M.2 Nomenclature.....................................................................................................................64
Figure 34: Top View of the Module.............................................................................................................65
Figure 35: Bottom View of the Module....................................................................................................... 65

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1Introduction
This document defines the EM06 series module and describes its air and hardware interfaces which
connect to your applications.
It helps you quickly understand EM06 series’ interface specifications, electrical and mechanical details, as
well as other related information. To facilitate application of the series in different fields, its reference
designs are also provided for your reference. With the hardware design document, application notes and
user guides, you can use the product to design and set up mobile applications easily.

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1.1. 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 EM06 series 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 emergent 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
fuelling 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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2Product Concept
2.1. General Description
The EM06 series modules are a series of LTE-A/UMTS/HSPA+ wireless communication modules
featuring receive diversity. With standard PCI Express M.2 interfaces, the series supports data connection
on LTE-FDD, LTE-TDD, DC-HSDPA, DC-HSPA+, HSDPA, HSUPA and WCDMA networks.
EM06 series supports embedded operating systems such as Windows, Linux and Android, and also
carries GNSS1) and voice functionality2) to meet specific application demands. It contains three variants:
EM06-E, EM06-J and EM06-A. You can select a dedicated type based on your region or operator(s).
The following table lists the frequency bands,CA combinations and GNSS types supported by the
module.
Table 1: Frequency Bands,CA Combinations and GNSS Types Supported
Mode
EM06-E
EM06-J
EM06-A
LTE-FDD
(with Rx-diversity)
B1/B3/B5/B7/
B8/B20/B28/B323)
B1/B3/B8/B18/B19/
B26/B28
B2/B4/B5/B7/B12/
B13/B25/B26/
B293)/B30/B66
LTE-TDD
(with Rx-diversity)
B38/B40/B41
B41
B41
2×CA
B1 + B1/B5/B8/
B20/B28;
B3 + B3/B5/B7/
B8/B20/B28;
B7 + B5/B7/B8/
B20/B28;
B20 + B323);
B38 + B38;
B40 + B40;
B41 + B41
B1 + B1/B8/B18/B19/B26/
B28;
B3 + B3/B8/B18/B19/B26/
B28;
B41 + B41
B2 + B2/B5/B12/
B13/B293);
B4 + B4/B5/B12/
B13/B293);
B5 + B5/B7/B25/
B30/B66;
B7 + B7/B12/B26;
B12 + B12/B25/B30/
B66;
B13 + B66;
B25 + B25/B26;
B30 + B293);

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1. 1) The GNSS function is optional.
2. 2) EM06 series modules (EM06-E/EM06-J/EM06-A) come in two versions: Telematics and Data-only.
The Telematics version supports voice and data functions, while the Data-only version only supports
the data function.
3. 3) LTE-FDD B29 and B32 are supported only for Rx and secondary component carrier(s).
EM06 series module is applicable to:
⚫Rugged Tablet PC and Laptop Computer
⚫Remote Monitor System
⚫Vehicle System
⚫Wireless POS System
⚫Smart Metering System
⚫Wireless Router and Switch
⚫Other Wireless Terminal Devices
2.2. Key Features
The following table details the features of EM06 series modules.
Table 2: Key Features of EM06 Series
B66 + B293)/B66;
B41 + B41
WCDMA
(with Rx-diversity)
B1/B3/B5/B8
B1/B3/B6/B8/B19
B2/B4/B5
GNSS 1)
GPS,
GLONASS,
BeiDou/Compass
Galileo,
QZSS
GPS,
GLONASS,
BeiDou/Compass
Galileo,
QZSS
GPS,
GLONASS,
BeiDou/Compass
Galileo,
QZSS
Features
Details
Function Interface
⚫PCI Express M.2 Interface
Power Supply
⚫Supply voltage: 3.135–4.4 V
⚫Typical supply voltage: 3.7 V
NOTES

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Transmitting Power
⚫Class 3 (23 dBm ±2 dB) for LTE-FDD bands
⚫Class 3 (23 dBm ±2 dB) for LTE-TDD bands
⚫Class 3 (24 dBm +1/-3 dB) for WCDMA
LTE Features
⚫Up to LTE Cat 6
⚫1.4 MHz to 40 MHz (2 ×CA) RF bandwidth
⚫MIMO in DL direction
⚫LTE-FDD:
- DL: Max. 300 Mbps
- UL: Max. 50 Mbps
⚫LTE-TDD:
- DL: Max. 226 Mbps
- UL: Max. 28 Mbps
UMTS Features
⚫3GPP R8 DC-HSDPA, HSPA+, HSDPA, HSUPA and WCDMA
⚫QPSK, 16QAM and 64QAM modulation
⚫DC-HSDPA: Max. 42 Mbps (DL)
⚫HSUPA: Max. 5.76 Mbps (UL)
⚫WCDMA: Max. 384 kbps (DL/ UL)
Internet Protocol Features
⚫PPP/QMI/NTP*/TCP*/UDP*/FTP*/HTTP*/PING*/HTTPS*/SMTP*/
MMS*/FTPS*/SMTPS*/SSL* protocols
⚫Support PAP and CHAP protocols, which are usually used for PPP
connection
SMS
⚫Text and PDU modes
⚫Point to point MO and MT
⚫SMS cell broadcast
⚫SMS storage: ME by default
(U)SIM Interfaces
⚫Support (U)SIM card: 1.8 V, 3.0 V
⚫Include USIM1 and USIM2 interfaces
⚫Dual SIM Single Standby
Audio Feature
⚫One digital audio interface: PCM interface
⚫WCDMA:AMR/AMR-WB
⚫LTE:AMR/AMR-WB
⚫Echo cancellation and noise suppression
PCM Interface
⚫Used for audio function with external codec
⚫Support 16-bit linear data format
⚫Support long frame synchronization and short frame synchronization
⚫Support master and slave modes, but must be the master in long
frame synchronization
USB Interface
⚫Compliant with USB 2.0 specifications, with maximum transmission
rate up to 480 Mbps on USB 2.0.
⚫Used for AT command communication, data transmission, firmware
upgrade, software debug, GNSS NMEA sentences output and voice
over USB*
⚫Support USB serial drivers for:

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1. 1) Within operation temperature range, the module is 3GPP compliant.
2. 2) Within extended temperature range, the module keeps the ability to establish and maintain a voice,
SMS, data transmission, emergency call, etc. There won’t be unrecoverable malfunctions. Nor will
there be effects on the radio spectrum or harm to radio networks. Only one or more parameters like
Pout might reduce in the value and exceed specified tolerances. When the temperature returns to
normal operation temperature levels, the module will meet 3GPP specifications again.
3. “*” means under development.
- Windows 7/8/8.1/10
- Linux 2.6–5.4
- Android 4.x/5.x/6.x/7.x/8.x/9.x
Antenna Connectors
⚫Include main antenna, Rx-diversity antenna and GNSS antenna
connectors
Rx-diversity
⚫Support LTE/WCDMA Rx-diversity
GNSS Features
⚫Gen8C Lite of Qualcomm
⚫Protocol: NMEA 0183
⚫Data rate: 1 Hz
AT Commands
⚫Compliant with 3GPP TS 27.007, 27.005 and Quectel enhanced AT
commands
Physical Characteristics
⚫Size: (42.0 ±0.15) mm ×(30.0 ±0.15) mm ×(2.3 ±0.10) mm
⚫Weight: approx. 6.5 g
Temperature Range
⚫Operation temperature range: -30 °C to +70 °C 1)
⚫Extended temperature range: -40 °C to +85 °C 2)
⚫Storage temperature range: -40 °C to +90 °C
Firmware Upgrade
⚫Through USB 2.0 interface
⚫DFOTA
RoHS
All hardware components are fully compliant with EU RoHS directive
NOTES

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2.3. Functional Diagram
Below is the functional diagram of an EM06 series module.
Baseband
PMIC
Transceiver
ANT_MAIN
ANT_DIV
ANT_GNSS
APT
VCC
RESET#
19.2M
XO
Control
IQ
Control
Tx
PRx
DRx
PCI Express M.2 Key-B Interface
FULL_CARD_POWER_OFF#
W_DISABLE1#
USB 2.0
(U)SIM1&(U)SIM2
WWAN_LED#
WAKE_ON_WAN#
NAND +
DDR2 SDRAM
PCM
W_DISABLE2#
GPIOs
Tx/Rx Blocks
Figure 1: Functional Diagram
2.4. Evaluation Board
To help you develop applications conveniently with EM06 series modules, Quectel supplies the evaluation
board (M.2 EVB), USB to RS-232 converter cable, USB type-C cable, earphone, antennas and other
peripherals to control or test the module. For more details, please refer to document [1].

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3Application Interfaces
The physical connections and signal levels of EM06 series comply with PCI Express M.2 specifications.
This chapter mainly describes the definition and application of the following interfaces, signals and pins of
the modules:
⚫Power supply
⚫(U)SIM interfaces
⚫USB interface
⚫PCM and I2C interfaces
⚫Control and indication signals
⚫Antenna tuner control interface*
⚫Configuration pins
“*” means under development.
NOTE

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3.1. Pin Assignment
The following figure shows the pin assignment of EM06 series. The module and antenna connectors are
on the top side.
PIN2
PIN74
BOT
PIN1
PIN75
TOP
Pin Name No.
CONFIG_2 75
GND 73
GND 71
CONFIG_1 69
RESET# 67
ANTCTL3 65
ANTCTL2 63
ANTCTL1 61
ANTCTL0 59
GND 57
NC 55
NC 53
GND 51
NC 49
NC 47
GND 45
NC 43
NC 41
GND 39
NC 37
NC 35
GND 33
NC 31
NC 29
GND 27
DPR 25
WAKE_ON_WAN# 23
CONFIG_0 21
Notch
Notch
Notch
Notch
GND 11
USB_DM 9
USB_DP 7
GND 5
GND 3
CONFIG_3 1
No. Pin Name
74 VCC
72 VCC
70 VCC
68 NC
66 USIM1_DET
64 RESERVED
62 RESERVED
60 RESERVED
58 I2C_SCL
56 I2C_SDA
54 NC
52 NC
50 NC
48 USIM2_VDD
46 USIM2_RST
44 USIM2_CLK
42 USIM2_DATA
40 USIM2_DET
38 NC
36 USIM1_VDD
34 USIM1_DATA
32 USIM1_CLK
30 USIM1_RST
28 PCM_SYNC
26 W_DISABLE2#
24 PCM_OUT
22 PCM_IN
20 PCM_CLK
Notch
Notch
Notch
Notch
10 WWAN_LED#
8 W_DISABLE1#
6
FULL_CARD_POWER_OFF#
4 VCC
2 VCC
PIN11
PIN10
Figure 2: Pin Assignment

LTE-A Module Series
EM06 Series Hardware Design
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3.2. Pin Description
The following tables define and describe the pins of EM06 series on a 75-pin application.
Table 3: Definition of I/O Parameters
Table 4: Pin Description
Type
Description
DI
Digital Input
DO
Digital Output
IO
Bidirectional
OD
Open Drain
PI
Power Input
PO
Power Output
Pin No.
Pin Name
I/O
Description
Comment
1
CONFIG_3
Not connected internally
2
VCC
PI
Power supply
Vmin = 3.135 V
Vnorm = 3.7 V
Vmax = 4.4 V
3
GND
Ground
4
VCC
PI
Power supply
Vmin = 3.135 V
Vnorm = 3.7 V
Vmax = 4.4 V
5
GND
Ground
6
FULL_CARD_
POWER_OFF#
DI
A signal to power on/off the module
When it is at low level, the module
powers off;
When it is at high level, the module
powers on.
Pulled down internally
7
USB_DP
IO
USB 2.0 differential data bus (+)

LTE-A Module Series
EM06 Series Hardware Design
EM06_Series_Hardware_Design 19 / 69
8
W_DISABLE1#
DI
Airplane mode control
Active low
1.8/3.3 V power domain
9
USB_DM
IO
USB 2.0 differential data bus (-)
10
WWAN_LED#
OD
An open collector and active low
signal
Allows the module to provide RF
status indication via LED devices
provided by the system
3.3 V power domain
11
GND
Ground
12
Notch
Notch
13
Notch
Notch
14
Notch
Notch
15
Notch
Notch
16
Notch
Notch
17
Notch
Notch
18
Notch
Notch
19
Notch
Notch
20
PCM_CLK
IO
PCM data bit clock
In master mode, it serves as an
output signal;
In slave mode, it serves as an input
signal.
If unused, keep it open.
1.8 V power domain
21
CONFIG_0
Connected to GND internally
22
PCM_IN
DI
PCM data input
1.8 V power domain
23
WAKE_ON_WAN#
OD
A signal to wake up the host
An open collector and active low
signal
1.8 V power domain
24
PCM_OUT
DO
PCM data output
1.8 V power domain
25
DPR
DI
Dynamic power reduction
High level by default
1.8 V power domain
26
W_DISABLE2#
DI
GNSS enablement control
Active low
1.8/3.3 V power domain