Quectel EP06 Supplement

EP06 Series
Hardware Design
LTE-A Module Series
Version: 1.3
Date: 2020-08-08
Status: Released
www.quectel.com

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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
2018-06-25
Vae LIU/
Wison HE
Initial
1.1
2018-08-07
Vae LIU
Updated the extended temperature range in Table 2 and
27.
1.2
2019-01-31
Ewent LU/
Xavier XIA/
Reed WANG
1. Deleted EP06-APAC and all the related information
and added EP06-CN and the related information.
2. Updated the supported bands and 2×CA
combination of EP06-A in Table 1.
3. Updated the names of pins 8, 10, 12 and 14 of
USIM1 interface.
4. Updated the Reference Circuit of USB 2.0 & 3.0
Interface in Figure 5.
5. Added Chapter 4 GNSS Receiver and updated the
GNSS Performance in Table 14.
6. Updated the description of antenna connectors and
antenna requirements in Chapter 5.
7. Updated EP06-E and EP06-A Conducted RF
Receiving Sensitivity in Chapter 6.4.
8. Updated EP06-E and EP06-A Current Consumption
in Chapter 6.7.
1.3
2020-08-08
Archibald
JIANG
1. Deleted EP06-LA and EP06-CN.
2. Updated the weight and the dimensions in Table 2.
3. Updated the note for GNSS antenna requirements in
Chapter 5.4.
4. Added the GNSS current consumption of EP06-E
and EP06-A in Chapter 6.7.
5. Updated mechanical dimensions of the module in
Chapter 7.1.

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Contents
About the Document...................................................................................................................................2
Contents.......................................................................................................................................................3
Table Index...................................................................................................................................................5
Figure Index.................................................................................................................................................6
1Introduction..........................................................................................................................................7
1.1. Safety Information......................................................................................................................8
2Product Concept..................................................................................................................................9
2.1. General Description...................................................................................................................9
2.2. Key Features ...........................................................................................................................10
2.3. Functional Diagram .................................................................................................................12
2.4. Evaluation Board .....................................................................................................................13
3Application Interfaces .......................................................................................................................14
3.1. Pin Assignment........................................................................................................................14
3.2. Pin Description.........................................................................................................................15
3.3. Power Supply...........................................................................................................................18
3.4. (U)SIM Interfaces.....................................................................................................................19
3.5. USB Interface ..........................................................................................................................21
3.6. PCM and I2C Interfaces..........................................................................................................23
3.7. Control and Indicator Signals..................................................................................................25
3.7.1. WAKE_N Signal*............................................................................................................26
3.7.2. W_DISABLE_N Signal*..................................................................................................26
3.7.3. RESET_N Signal............................................................................................................27
3.7.4. WWAN_LED_N Signal...................................................................................................27
3.8. Tunable Antenna Control Interface*........................................................................................29
4GNSS Receiver...................................................................................................................................30
4.1. General Description.................................................................................................................30
4.2. GNSS Performance.................................................................................................................30
4.3. Layout Guidelines....................................................................................................................31
5Antenna Connection..........................................................................................................................32
5.1. Main/Rx-diversity Antenna Connectors...................................................................................32
5.1.1. Description of Main/Rx-diversity Antenna Connectors..................................................32
5.1.2. Operating Frequency .....................................................................................................33
5.2. GNSS Antenna Connector ......................................................................................................35
5.3. Antenna Connectors and Mating Plugs...................................................................................35
5.4. Antenna Requirements............................................................................................................37
6Electrical, Reliability and Radio Characteristics............................................................................39
6.1. General Description.................................................................................................................39
6.2. Absolute Maximum Ratings.....................................................................................................39

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6.3. Power Supply Requirements...................................................................................................40
6.4. RF Characteristics...................................................................................................................40
6.5. Operating and Storage Temperatures ....................................................................................42
6.6. Electrostatic Discharge............................................................................................................42
6.7. Current Consumption ..............................................................................................................43
6.8. Thermal Consideration............................................................................................................49
7Mechanical Dimensions....................................................................................................................51
7.1. Mechanical Dimensions...........................................................................................................51
7.2. Standard Dimensions of Mini PCI Express.............................................................................52
7.3. Top and Bottom Views ............................................................................................................53
7.4. Packaging................................................................................................................................54
8Appendix A References.....................................................................................................................55

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Table Index
Table 1: Frequency Bands and GNSS Types of EP06 Series....................................................................9
Table 2: Key Features of EP06 Series.......................................................................................................10
Table 3: Definition of I/O Parameters......................................................................................................... 15
Table 4: Pin Description.............................................................................................................................16
Table 5: Definition of VCC and GND Pins................................................................................................. 18
Table 6: Pin Definition of (U)SIM Interfaces .............................................................................................. 19
Table 7: Pin Definition of USB Interface....................................................................................................21
Table 8: Pin Definition of PCM and I2C Interfaces....................................................................................23
Table 9: Pin Definition of Control and Indicator Signals............................................................................25
Table 10: RF Function Status ....................................................................................................................26
Table 11: Indications of Network Status (AT+QCFG="ledmode",0, Default Setting)................................ 28
Table 12: Indications of Network Status (AT+QCFG="ledmode",2).......................................................... 28
Table 13: Pin Definition of Tunable Antenna Control Interface*................................................................29
Table 14: GNSS Performance ...................................................................................................................30
Table 15: Description of Main/Rx-diversity Antenna Connectors..............................................................32
Table 16: EP06-E Operating Frequencies.................................................................................................33
Table 17: EP06-A Operating Frequencies.................................................................................................34
Table 18: Description of GNSS Antenna Connector ................................................................................. 35
Table 19: GNSS Frequency.......................................................................................................................35
Table 20: Antenna Requirements.............................................................................................................. 37
Table 21: Absolute Maximum Ratings....................................................................................................... 39
Table 22: Power Supply Requirements of EP06 Series............................................................................40
Table 23: RF Output Power .......................................................................................................................40
Table 24: EP06-E Conducted RF Receiving Sensitivity............................................................................40
Table 25: EP06-A Conducted RF Receiving Sensitivity............................................................................41
Table 26: Operating and Storage Temperatures....................................................................................... 42
Table 27: Electrostatic Discharge Characteristics (Temperature: 25 °C, Humidity: 45%)........................ 43
Table 28: EP06-E Current Consumption ...................................................................................................43
Table 29: GNSS Current Consumption of EP06-E....................................................................................45
Table 30: EP06-A Current Consumption ...................................................................................................46
Table 31: GNSS Current Consumption of EP06-A.................................................................................... 48
Table 32: Related Documents....................................................................................................................55
Table 33: Terms and Abbreviations...........................................................................................................55

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Figure Index
Figure 1: Functional Diagram..................................................................................................................... 13
Figure 2: Pin Assignment of EP06 Series..................................................................................................15
Figure 3: Reference Design of Power Supply............................................................................................19
Figure 4: Reference Circuit of (U)SIM Card Interface with a 6-pin (U)SIM Card Connector.....................20
Figure 5: Reference Circuit of USB 2.0 & 3.0 Interfaces...........................................................................22
Figure 6: Primary Mode Timing.................................................................................................................. 24
Figure 7: Auxiliary Mode Timing.................................................................................................................24
Figure 8: Reference Circuit of PCM Application with Audio Codec........................................................... 25
Figure 9: WAKE_N Behavior...................................................................................................................... 26
Figure 10: Timing of Resetting Module...................................................................................................... 27
Figure 11: WWAN_LED_N Signal Reference Circuit Diagram .................................................................28
Figure 12: Antenna Connectors on the Module......................................................................................... 32
Figure 13: Dimensions of the Antenna Connectors (Unit: mm).................................................................36
Figure 14: Mechanicals of U.FL-LP Mating Plugs .....................................................................................36
Figure 15: Space Factor of Mating Plugs (Unit: mm) ................................................................................37
Figure 16: Referenced Heatsink Design.................................................................................................... 49
Figure 17: Referenced Thermal Pad Design.............................................................................................50
Figure 18: Mechanical Dimensions of EP06 Series ..................................................................................51
Figure 19: Standard Dimensions of Mini PCI Express .............................................................................. 52
Figure 20: Dimensions of the Mini PCI Express Connector (Molex 679100002)......................................53
Figure 21: Top View of the Module............................................................................................................ 53
Figure 22: Bottom View of the Module.......................................................................................................54

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1Introduction
The document defines the EP06 series module and describes its air interface and hardware interfaces
which are connected with customers’ applications.
This document helps customers quickly understand module interface specifications, electrical and
mechanical details, as well as other related information of the module. To facilitate application designs, it
also includes some reference designs for your reference. The document, coupled with application notes
and user guides, makes it easy to design and set up mobile applications with EP06 series.

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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 the module. Manufacturers of the cellular terminal
should notify users and operating personnel of the following safety information by incorporating these
guidelines into all manuals of the product. Otherwise, Quectel assumes no liability for customers’ failure to
comply with these precautions.
Full attention must be paid to driving at all times in order to reduce the risk of an
accident. Using a mobile while driving (even with a handsfree kit) causes
distraction and can lead to an accident. Please comply with laws and regulations
restricting the use of wireless devices while driving.
Switch off the cellular terminal or mobile before boarding an aircraft. The operation
of wireless appliances in an aircraft is forbidden to prevent interference with
communication systems. If there is an Airplane Mode, it should be enabled prior to
boarding an aircraft. Please consult the airline staff for more restrictions on the use
of wireless devices on an aircraft.
Wireless devices may cause interference on sensitive medical equipment, so
please be aware of the restrictions on the use of wireless devices when in
hospitals, clinics or other healthcare facilities.
Cellular terminals or mobiles operating over radio 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, use 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 mobile 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.

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2Product Concept
2.1. General Description
EP06 is a series of LTE-A/UMTS/HSPA+ wireless communication modules with receive diversity. It
provides data connectivity on LTE-FDD, LTE-TDD, DC-HSDPA, HSPA+, HSDPA, HSUPA and WCDMA
networks with PCI Express Mini Card 1.2 standard interface.
EP06 series supports embedded operating systems such as Windows CE, Linux and Android, and also
provides GNSS 1) and voice functionality 2) to meet your specific application demands. EP06 series
contains two variants: EP06-E and EP06-A. You can select a dedicated type based on your application
regions or target operators.
The following table shows the frequency bands and GNSS types of EP06 series.
Table 1: Frequency Bands and GNSS Types of EP06 Series
Mode
EP06-E
EP06-A
LTE-FDD
(with Rx-diversity)
B1/B3/B5/B7/B8/B20/B28/B323)
B2/B4/B5/B7/B12/B13/B25/B26/
B293)/B30/B66
LTE-TDD
(with Rx-diversity)
B38/B40/B41
Not supported
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
B2+B2/B5/B12/B13/B293);
B4+B4/B5/B12/B13/B293);
B7+B5/B7/B12/B26;
B25+B5/B12/B25/B26;
B30+B5/B12/B294);
B66+B5/B12/B13/B294)/B66
WCDMA
(with Rx-diversity)
B1/B3/B5/B8
B2/B4/B5
GNSS
GPS, GLONASS,
BeiDou/Compass, Galileo, QZSS
GPS, GLONASS,
BeiDou/Compass, Galileo, QZSS
QZSS

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1. 1) GNSS function is optional.
2. 2) EP06 series contains Telematics version and Data-only version. Telematics version supports
voice and data functions, while Data-only version only supports data function.
3. 3) LTE-FDD B29 and B32 support Rx only, and in 2 × CA they are only for secondary component
carrier.
EP06 series can be applied in the following fields:
Rugged Tablet PC
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 describes the detailed features of EP06 series.
Table 2: Key Features of EP06 Series
Feature
Details
Functional Interface
PCI Express Mini Card 1.2 Standard Interface
Power Supply
Supply voltage: 3.1–4.4 V
Typical supply voltage: 3.3 V
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 bands
LTE Features
Support up to LTE Cat 6
Support 1.4 to 40 MHz (DL 2 ×CA) RF bandwidth
Support 2 ×2 MIMO in DL direction
FDD: Max 300 Mbps (DL)/50 Mbps (UL)
TDD: Max 226 Mbps (DL)/28 Mbps (UL)
UMTS Features
Support 3GPP R8 DC-HSDPA, HSPA+, HSDPA, HSUPA and WCDMA
Support QPSK, 16-QAM and 64-QAM modulation
DC-HSDPA: Max 42 Mbps
NOTES

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HSUPA: Max 5.76 Mbps
WCDMA: Max 384 kbps (DL)/Max 384 kbps (UL)
Internet Protocol Features
Support PPP/QMI/TCP*/UDP*/FTP*/HTTP*/NTP*/PING*/HTTPS*/SMTP*/
MMS*/FTPS*/SMTPS*/SSL* protocols
Support PAP (Password Authentication Protocol) and CHAP (Challenge
Handshake Authentication Protocol) protocols usually used for PPP
connections
SMS
Text and PDU mode
Point to point MO and MT
SMS cell broadcast
SMS storage: ME by default
(U)SIM Interface
Support (U)SIM card: 1.8 V, 3.0 V
Include USIM1 and USIM2 interfaces
Support Dual SIM Single Standby
Audio Feature
Support one digital audio interface: PCM interface
WCDMA: AMR/AMR-WB
LTE: AMR/AMR-WB
Support echo cancellation and noise suppression
PCM Interface
Used for audio function with external codec
Support 16-bit linear data formats
Support long frame synchronization and short frame synchronization
Support master and slave mode, but must be the master in long frame
synchronization
USB 2.0&3.0 Interface
Compliant with USB 3.0 and 2.0 specifications, with maximum transmission
rates up to 5 Gbps on USB 3.0 and 480 Mbps on USB 2.0.
Used for AT command communication, data transmission, firmware
upgrade, software debugging, GNSS NMEA sentence output and voice
over USB*
Support USB serial drivers for: Windows 7/8/8.1/10, Windows CE
5.0/6.0/7.0*, Linux 2.6/3.x/4.1–4.14, Android 4.x/5.x/6.x/7.x/8.x
Antenna Interfaces
Include main antenna, diversity antenna and GNSS antenna interfaces
Rx-diversity
Support LTE/WCDMA Rx-diversity
GNSS Features
Gen8C Lite of Qualcomm
Protocol: NMEA 0183
AT Commands
Compliant with 3GPP TS 27.007, 27.005 and Quectel enhanced AT
commands
Physical Characteristics
Dimensions: (30.0 ±0.15) mm ×(50.95 ±0.15) mm × (3.95 ±0.20) mm
Weight: approx. 10.1 g
Temperature Range
Operating temperature range: -35°C to +75°C1)
Extended temperature range: -40°C to +85°C 2)
Storage temperature range: -40°C to +90°C

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1. "*" means under development.
2. 1) Within operating temperature range, the module is 3GPP compliant.
3. 2) Within extended temperature range, proper mounting, heating sinks and active cooling may be
required to make certain functions of the module such as voice, SMS, data transmission, emergency
call to be realized. Only one or more parameters like Pout might reduce in their value and exceed the
specified tolerances. When the temperature returns to normal operating temperature levels, the
module will meet 3GPP specifications again.
2.3. Functional Diagram
The following figure shows the block diagram of EP06 series.
Firmware Upgrade
USB interface and DFOTA
RoHS
All hardware components are fully compliant with EU RoHS directive
NOTES

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Baseband
NAND
DDR2
SDRAM
ANT_MAIN ANT_DIVANT_GNSS
APT
19.2M
XO
Control
IQ Control
Tx PRx DRx
Mini PCI Express Interface
VCC USB 2.0 &
USB 3.0
W_DISABLE_N PCM
&I2C USIM1 & USIM2 GPIOs
WAKE_N
Baseband
RESET_N WWAN_
LED_N
Power
Power
Power
Power
Power
Power
Tx/Rx Blocks
Power
PMIC
Transceiver
Figure 1: Functional Diagram
2.4. Evaluation Board
In order to help you develop applications conveniently with the module, Quectel supplies an evaluation
board (EPXX EVB), USB Type-C cable, USB to RS-232 converter cable, earphone, antenna and other
peripherals to control or test the module. For more details, refer to document [1].

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3Application Interfaces
Physical connections and signal levels of the module comply with PCI Express Mini CEM specifications.
This chapter mainly describes definition and application of the following module interfaces and signals:
Power supply
(U)SIM interfaces
USB interface
PCM and I2C interfaces
Control and indicator signals
Tunable antenna control interface*
Antenna interfaces
“*” means under development.
3.1. Pin Assignment
The following figure shows the pin assignment of the module. The module and antenna connectors are
disposed on the top side.
NOTE

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Pin No.Pin Name 1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
33
35
37
39
41
43
45
47
49
51
Pin No.Pin Name
2
4
6
8
10
12
14
16
18
20
22
24
26
28
30
32
34
36
38
40
44
46
48
50
52
42
WAKE_N
ANTCTL0
ANTCTL1
USIM2_RST
GND
TOP BOT
VCC
NC
USIM1_VDD
GND USIM1_DATA
VREF_1.8V USIM1_CLK
USIM2_VDD USIM1_RST
GND NC
USIM2_CLK GND
USIM2_DATA W_DISABLE_N
GND RESET_N
USB3.0_TX- VCC
USB3.0_TX+ GND
GND NC
GND I2C_SCL
USB3.0_RX- I2C_SDA
USB3.0_RX+ GND
GND USB_D-
GND USB_D+
VCC GND
VCC WWAN_LED_N
GND ANTCTL2
PCM_CLK ANTCTL3
PCM_DOUT
PCM_DIN NC
GND
PCM_SYNC VCC
PIN 1
PIN 51
PIN 2
PIN 52
Figure 2: Pin Assignment of EP06 Series
3.2. Pin Description
The following tables show the pin definition and description of the module.
Table 3: Definition of I/O Parameters
Type
Description
AI
Analog Input
AO
Analog Output
DI
Digital Input
DO
Digital Output
IO
Bidirectional
OC
Open Collector
OD
Open Drain

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Table 4: Pin Description
PI
Power Input
PO
Power Output
Pin
No.
Mini PCI
Express
Standard Name
Pin Name
I/O
Description
Comment
1
WAKE#
WAKE_N*
OD
Output signal to wake up the
host
2
3.3Vaux
VCC
PI
3.3 V DC power supply
Vmin = 3.1 V
Vnorm = 3.3 V
Vmax = 4.4 V
3
COEX1
ANTCTL0*
DO
Tunable antenna control
1.8 V power
domain
4
GND
GND
Ground
5
COEX2
ANTCTL1*
DO
Tunable antenna control
1.8 V power
domain
6
1.5V
NC
Not connected
7
CLKREQ#
USIM2_RST
DO
Reset signal of (U)SIM2 card
1.8/ 3.0 V
8
UIM_PWR
USIM1_VDD
PO
Power supply for (U)SIM1
card
1.8/ 3.0 V
9
GND
GND
Ground
10
UIM_DATA
USIM1_DATA
IO
Data signal of (U)SIM1 card
1.8/ 3.0 V
11
REFCLK-
VREF_1.8V
PO
1.8 V reference voltage
output
12
UIM_CLK
USIM1_CLK
DO
Clock signal of (U)SIM1 card
1.8/ 3.0 V
13
REFCLK+
USIM2_VDD
PO
Power supply for (U)SIM2
card
1.8/ 3.0 V
14
UIM_RESET
USIM1_RST
DO
Reset signal of (U)SIM1 card
1.8/ 3.0 V
15
GND
GND
Ground
16
UIM_VPP
NC
Not connected
17
RESERVED
USIM2_CLK
DO
Clock signal of (U)SIM2 card
1.8/ 3.0 V
18
GND
GND
Ground
19
RESERVED
USIM2_DATA
IO
Data signal of (U)SIM2 card
1.8/ 3.0 V

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20
W_DISABLE#
W_DISABLE_N*
DI
Airplane mode control
1.8 V power
domain
21
GND
GND
Ground
22
PERST#
RESET_N
DI
System reset
Active low
23
PERn0
USB3.0_TX-
AO
USB 3.0 transmit data (-)
24
3.3Vaux
VCC
PI
3.3 V DC power supply
Vmin = 3.1 V
Vnorm = 3.3 V
Vmax = 4.4 V
25
PERp0
USB3.0_TX+
AO
USB 3.0 transmit data (+)
26
GND
GND
Ground
27
GND
GND
Ground
28
1.5V
NC
Not connected
29
GND
GND
Ground
30
SMB_CLK
I2C_SCL
DO
I2C serial clock
Externally pulled
up to 1.8 V
31
PETn0
USB3.0_RX-
AI
USB 3.0 receive data (-)
32
SMB_DATA
I2C_SDA
IO
I2C serial data
Externally pulled
up to 1.8 V
33
PETp0
USB3.0_RX+
AI
USB 3.0 receive data (+)
34
GND
GND
Ground
35
GND
GND
Ground
36
USB_D-
USB_D-
AI/A
O
USB 2.0 differential data (-)
37
GND
GND
Ground
38
USB_D+
USB_D+
AI/A
O
USB 2.0 differential data (+)
39
3.3Vaux
VCC
PI
3.3 V DC power supply
Vmin = 3.1 V
Vnorm = 3.3 V
Vmax = 4.4 V
40
GND
GND
Ground
41
3.3Vaux
VCC
PI
3.3 V DC power supply
Vmin = 3.1 V
Vnorm = 3.3 V
Vmax = 4.4 V
42
LED_WWAN#
WWAN_LED_N
OD
It is an open collector and
active low signal.
It allows the module to

LTE-A Module Series
EP06 Series Hardware Design
EP06_Series_Hardware_Design 18 / 56
1. Keep all NC and unused pins unconnected.
2. "*" means under development.
3.3. Power Supply
The following table shows pin definition of VCC pins and ground pins.
Table 5: Definition of VCC and GND Pins
provide RF status indication
via LED devices provided by
the system.
43
GND
GND
Ground
44
LED_WLAN#
ANTCTL2*
DO
Tunable antenna control
1.8 V power
domain
45
RESERVED
PCM_CLK
DI/D
O
PCM clock signal
46
LED_WPAN#
ANTCTL3*
DO
Tunable antenna control
1.8 V power
domain
47
RESERVED
PCM_DOUT
DO
PCM data output
48
1.5V
NC
Not connected
49
RESERVED
PCM_DIN
DI
PCM data input
50
GND
GND
Ground
51
RESERVED
PCM_SYNC
DI/D
O
PCM frame synchronization
signal
In master mode,
it is an output
signal.
In slave mode, it
is an input signal.
52
3.3Vaux
VCC
PI
3.3 V DC power supply
Vmin = 3.1 V
Vnorm = 3.3 V
Vmax = 4.4 V
Pin No.
Pin Name
I/O
Power Domain
Description
2, 24, 39, 41, 52
VCC
PI
3.1–4.4 V
3.3 V typical DC power supply
NOTES

LTE-A Module Series
EP06 Series Hardware Design
EP06_Series_Hardware_Design 19 / 56
The typical supply voltage of the module is 3.3 V. The power supply must be able to provide at least 2 A
current, and a bypass capacitor of no less than 470 µF with low ESR should be used to prevent the
voltage from dropping.
The following figure shows a reference design of power supply. The tolerance of resistors R2 and R3 is
recommended to be 1 %, and the capacitor C3 needs a low ESR.
LDO_IN
C1 C2
MIC29302WU U1
IN OUT
EN
GND
ADJ
2 4
1 3 5
VCC
100nF C3
470uF
C4
100nF
R2
82K 1%
47K 1%
R3
470uF
470R
51K R4
R1
MCU_POWER
_ON/OFF 47K
4.7K
R5
R6
C5 C6
33pF 10pF
TVS
D1
Figure 3: Reference Design of Power Supply
3.4. (U)SIM Interfaces
The (U)SIM interface circuitry meets ETSI and IMT-2000 requirements. Both 1.8 V and 3.0 V (U)SIM
cards are supported, and Dual SIM Single Standby function is supported.
The following table shows the pin definition of (U)SIM interfaces.
Table 6: Pin Definition of (U)SIM Interfaces
4, 9, 15, 18, 21, 26, 27, 29,
34, 35, 37, 40, 43, 50
GND
Ground
Pin No.
Pin Name
I/O
Power Domain
Description
8
USIM1_VDD
PO
1.8/ 3.0 V
Power source for (U)SIM1 card
10
USIM1_DATA
IO
1.8/ 3.0 V
Data signal of (U)SIM1 card
12
USIM1_CLK
DO
1.8/ 3.0 V
Clock signal of (U)SIM1 card