Quectel UC20 User manual

UMTS&LTE EVB
User Guide
UMTS/HSPA/LTE Module Series
Rev: UMTS&LTE_EVB_User_Guide_V1.0
Date: 2015-03-03
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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: [phone]
Mail: [e-mail]
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: [e-mail]
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. 2015. All rights reserved.
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About the Document
History
Revision
Date
Author
Description
1.0
2015-03-03
Huik LI
Initial
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Contents
About the Document...................................................................................................................................2
Contents.......................................................................................................................................................3
Table Index...................................................................................................................................................4
Figure Index.................................................................................................................................................5
1Introduction..........................................................................................................................................6
1.1. Safety Information ...................................................................................................................7
2General Overview.................................................................................................................................8
2.1. Key Features...........................................................................................................................8
2.2. System Overview.....................................................................................................................9
2.3. Interface Overview...................................................................................................................9
2.4. EVB View............................................................................................................................... 11
2.5. EVB Accessories...................................................................................................................11
3Interface Application .........................................................................................................................13
3.1. Power Interface .....................................................................................................................13
3.2. USB Device Interface............................................................................................................14
3.3. Audio Interface ......................................................................................................................15
3.3.1. Loud Speaker (J603)......................................................................................................16
3.3.2. Earphone (J601) ............................................................................................................16
3.3.3. Handset (J602)...............................................................................................................18
3.4. USIM Card Interface..............................................................................................................19
3.5. UART Interface......................................................................................................................21
3.6. Switch and Buttons................................................................................................................23
3.7. Status LEDs...........................................................................................................................24
3.8. Test Points.............................................................................................................................25
4Operation of UMTS&LTE Module.....................................................................................................28
4.1. Power On...............................................................................................................................28
4.2. Power Off UMTS&LTE Module..............................................................................................29
4.3. Reset UMTS&LTE Module....................................................................................................29
4.4. Communication Via USB or UART Interface.........................................................................29
4.4.1. Communication via USB Interface.................................................................................29
4.4.2. Communication via UART Interface...............................................................................29
4.5. Firmware Upgrade.................................................................................................................30
5EVB Accessories Assembly .............................................................................................................31
6Appendix A Reference.......................................................................................................................32
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Table Index
TABLE 1: FEATURES.......................................................................................................................................... 8
TABLE 2: INTERFACES OF UMTS&LTE EVB.................................................................................................... 9
TABLE 3: ACCESSORIES LIST.........................................................................................................................11
TABLE 4: PIN ASSIGNMENT OF USB DEVICE INTERFACE J801................................................................. 15
TABLE 5: PIN ASSIGNMENT OF J601............................................................................................................. 17
TABLE 6: PIN ASSIGNMENT OF J602............................................................................................................. 19
TABLE 7: PIN ASSIGNMENT OF J702............................................................................................................. 20
TABLE 8: PIN ASSIGNMENT OF J401............................................................................................................. 22
TABLE 9: DESCRIPTION OF SWITCH AND BUTTONS.................................................................................. 23
TABLE 10: DESCRIPTION OF STATUS LEDS................................................................................................. 24
TABLE 11: PIN ASSIGNMENT OF J804, J806 AND J807................................................................................ 25
TABLE 12: UMTS&LTE MODULE INDICATION OF D102 AND D104.............................................................. 28
TABLE 13: TERMS AND ABBREVIATIONS...................................................................................................... 32
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Figure Index
FIGURE 1: SYSTEM OVERVIEW....................................................................................................................... 9
FIGURE 2: EVB TOP VIEW ...............................................................................................................................11
FIGURE 3: EVB ACCESSORIES...................................................................................................................... 12
FIGURE 4: SIMPLIFIED POWER SUPPLY SCHEMATIC ................................................................................ 13
FIGURE 5: POWER INTERFACE..................................................................................................................... 14
FIGURE 6: POWER PLUG................................................................................................................................ 14
FIGURE 7: CIRCUIT OF USB INTERFACE...................................................................................................... 15
FIGURE 8: AUDIO CODEC CIRCUIT ............................................................................................................... 16
FIGURE 9: LOUD SPEAKER CIRCUIT ............................................................................................................ 16
FIGURE 10: EARPHONE CIRCUIT .................................................................................................................. 17
FIGURE 11: PIN ASSIGNMENT OF J601......................................................................................................... 17
FIGURE 12: THE SKETCH OF AUDIO PLUG.................................................................................................. 18
FIGURE 13: HANDSET CIRCUIT ..................................................................................................................... 18
FIGURE 14: SIMPLIFIED USIM CARD INTERFACE SCHEMATIC ................................................................. 19
FIGURE 15: PINS ASSIGNMENT OF USIM CARD HOLDER.......................................................................... 20
FIGURE 16: UART BLOCK DIAGRAM ............................................................................................................. 21
FIGURE 17: MAIN UART PORT (J401)............................................................................................................ 22
FIGURE 18: SWITCH AND BUTTONS ............................................................................................................. 23
FIGURE 19: STATUS LEDS.............................................................................................................................. 24
FIGURE 20: TEST POINTS J806 AND J807 .................................................................................................... 25
FIGURE 21: TEST POINTS J804...................................................................................................................... 25
FIGURE 22: SELECT THE USB DM PORT TO UPDATE FIRMWARE............................................................ 30
FIGURE 23: UMTS&LTE EVB AND ACCESSORIES EQUIPMENT................................................................. 31
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1Introduction
This document describes the evaluation board of Quectel’s UMTS&LTE module. The UMTS&LTE
evaluation board is an assistant system integrator for developing and evaluating products based on
Quectel Wireless Modules.
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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 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 does not take on any liability
for customer 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 mobie while driving (even with a handsfree kit) cause distraction
and can lead to an accident. You must comply with laws and regulations restrcting
the use of wireless devices while driving.
Switch off the cellular terminal or mobile before boarding an aircraft. Make sure it
switched off. The operation of wireless appliances in an aircraft is forbidden 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 Fight
Mode which must be enabled prior to boarding an aircraft.
Switch off your wireless device when in hospitals or clinics or other health care
facilities. These requests are desinged to prevent possible interference with
sentitive medical equipment.
Cellular terminals or mobiles operate over radio frequency signal and cellular
network and cannot be guaranteed to connect in all conditions, for example no
mobile fee or an invalid USIM card. While you are in this condition and need
emergent help, Please Remember using emergency call. In order to make or
receive 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 exposive atmospheres including 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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2General Overview
Quectel supplies UMTS&LTE-EVB kit for testing UMTS&LTE module. This EVB can test basic
functionalities of these modules.
2.1. Key Features
Table 1: Features
Features
Implementation
Power Supply
DC supply 4.5~5.5V typically 5V
VBAT: 3.8V at J102
USIM Interface
Support card detection
Support USIM/SIM cards: 3.0V and 1.8V
Audio Interface
Analog interface used for loud speaker, earphone and handset
UART Interface
Two UART interfaces:
COM1-serial interface for data communication
COM2-serial interface for debug purpose (reserved)
Max. baud rate for COM1: 460800bps
USB Interface
USB 2.0
Signal Indication
5 LEDs are available for signal indication
Physical Characteristics
Size: 13.6 ×10.5cm
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2.2. System Overview
Power swich
Power supply USB PWRKEY RESET PWRDWN_N Audio interface SIM card interface
SD card interface
5V to 3.8V DCDC
Status LEDs
COM2 (DEBUG)
ALC5616
NCP2823
SPK_N
SPK_P
TXS0108
SP3238
SP3238
3.8V Power
3.8V Power
J403
COM1 (MAIN)
ON
OFF
Figure 1: System Overview
2.3. Interface Overview
Table 2: Interfaces of UMTS&LTE EVB
Interface
Reference
Number
Description
Power Supply
J201
(bottom side)
The power jack on the EVB board. Supply voltage typically
+5V
J801
USB_VBUS supply +5V voltage
Power Switch
S201
Control power supply VBAT ON/OFF
PWRKEY
S302
PWRKEY push button
It’s used to turn on/off the UMTS&LTE module
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1) Only some of Quectel modules have this function, please refer to Quectel module hardware design for
more details.
J302
Jumper is used to connect PWRKEY to GND
PWRDWN_N
S301
It’s used to turn off module1)
RESET
S303
Reset push button. It’s used to reset the UMTS&LTE module
Micro USB
J801
USB device interface
Audio
J603
Used for loud speaker
J601
Used for earphone
J602
(bottom side)
Used for handset
USIM
J702
USIM card holder
COM1
J401
(bottom side)
Main UART port
COM2
J402
(bottom side)
Debug UART port
LEDs
D103, D101,
D109, D104, D102
D103 is VBAT ON/OFF indicator.
D101 is used for indicating whether the UMTS&LTE module
is turned on.
D109 is used for whether module is in sleep mode.
D104 and D102 are used for indicating the net status of
UMTS&LTE module.
UMTS&LTE
J101
UMTS&LTE module connector
VBAT
J102
Jumper used for VBAT voltage test
Test Points
J403, J802, J803,
J804, J805, J806,
J807
These are test pins
NOTE
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2.4. EVB View
Figure 2: EVB Top View
2.5. EVB Accessories
All the items of EVB kit are listed in Table 3 and Figure 3 as below. Please contact the supplier if there is
something missing.
Table 3: Accessories List
Items
Description
Quantity
Power Supply
5V DC switching adaptor
1
Cables
USB to UART converter cable
1
USB cable
1
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Figure 3: EVB Accessories
The main antenna can also be used as diversity reception.
RF cable
3
Antennas
Main Antenna
2
GNSS Antenna (passive)
1
Audio
Earphone
1
Disk
USB2.0 to RS232 driver and USB driver disk
1
Other
Bolts and nuts for fixing EVB
1
NOTE
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3Interface Application
This chapter describes the hardware interfaces of UMTS&LTE EVB, shown as follows:
Power interface
USB interface
Audio interface
USIM card interface
UART interface
It also provides information about LEDs, buttons and test points to help you use the UMTS&LTE EVB.
3.1. Power Interface
The power supply of UMTS&LTE EVB could come from the external input which is connected with power
jack or USB receptacle. The power jack and USB receptacle connects a step-down converter which can
provide the supply voltage (VBAT) required for operating EVB and UMTS&LTE module.
Figure 4 shows the simplified power supply schematic, and Figure 5 shows the power interface of
UMTS&LTE EVB.
J201
S201
Power
supply
Power
switch Step-down converter
U201
AAT2138
J102
VBAT Power supply to
UMTS&LTE module
1.8V
3.0V
U302
LDO
U303
LDO
J801
USB
interface
Figure 4: Simplified Power Supply Schematic
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Figure 5: Power Interface
You need to use the proper DC adapter, shown as Figure 6.
Inner contact
Outer contact
Figure 6: Power Plug
3.2. USB Device Interface
UMTS&LTE module provides a USB 2.0 interface which complies with USB 2.0 standard and supports
high-speed (480Mbps), full-speed (12Mbps) and low-speed (1.5Mbps) mode. It is used for AT command,
data transmission, firmware upgrade and GNSS NEMA output.
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UMTS&LTE EVB provides a Micro-USB receptacle J801 to connect a host device. The USB data lines
USB_DP and USB_DM are connected directly to the UMTS&LTE module.
Figure 7: Circuit of USB Interface
Table 4: Pin Assignment of USB Device Interface J801
3.3. Audio Interface
UMTS&LTE module provides digital audio interface (PCM). UMTS&LTE EVB is equipped with an external
audio codec called ALC5616. Figure 8 shows the audio codec circuit.
The UMTS&LTE EVB provides three analog audio interfaces J601, J602, J603. This chapter gives a
detailed introduction on these analog audio interfaces.
J601 Pin
Pin Name
Function
1
USB_VBUS
This pin is used for USB detection
2
USB_DM
USB serial differential bus (minus)
3
USB_DP
USB serial differential bus (positive)
4
USB_ID
Reserved
5
GND
GND for USB interface
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PCM_IN
PCM_OUT
PCM_SYNC
PCM_CLK
I2C_SCL
I2C_SDA
U501
ALC5616
UMTS&LTE Module
VDD_EXT
4.7K 4.7K
BCLK
LRCK
DACDAT1
ADCDAT1
SCL
SDA
MIC_BIAS
MIC_BIAS
IN2P
IN2N
LOUDL/P
LOUDR/N
R
C
HPO_R
HPO_L J601
J602
speaker
J603
NCP2823
2
4
5
3
1
6
J602 MIC
Figure 8: Audio Codec Circuit
3.3.1. Loud Speaker (J603)
Figure 9 shows the loud speaker circuit with external audio Class-D amplifier. And the name of the J603
pins has been marked on the EVB.
LOUDL/P
LOUDR/N
Differential layout
Amplifier
circuit
10pF
10pF 33pF
33pF
Close to speaker
GND
GND
ESD
ESD
Codec
FB
FB
C1
C2
J603
U601
ALC5616
NCP2823
Figure 9: Loud Speaker Circuit
3.3.2. Earphone (J601)
An earphone can be used in audio interface J601. Figure 10 shows the circuit of audio interface J601 for
earphone:
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HPO_L
IN2N
IN2P
75pF
GND GND
AGND
Close to Socket
Differential layout
15pF
10pF 33pF
GND
GND
AGND
Codec
ALC5616
10uF
Close to Socket
AGND
ESD
ESD
Audio Jack
22uF
U501
J601
2
4
5
3
1
HPO_R
10pF 33pF
22uF
6
Figure 10: Earphone Circuit
Figure 11: Pin Assignment of J601
Table 5: Pin Assignment of J601
J404 Pin
Pin Name
Function
1
MICP
Positive microphone input
2
AGND
Dedicated GND for Audio
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The following figure shows the sketch of audio plug which suits for the audio jack on UMTS&LTE EVB.
2
1
MIC
GND
SW
SPK_R
SPK_L
3
4
32Ω
32Ω
Figure 12: The Sketch of Audio Plug
3.3.3. Handset (J602)
A handset can be used in audio interface J602. Figure 13 shows the circuit of audio interface J602 for
handset.And the name of the corresponding pins has been marked on the EVB.
ESD
33pF
ESD
ESD ESD
33pF33pF
33pF33pF33pF
10pF10pF10pF
10pF 10pF 10pF
IN2P
IN2N
LOUDL/P
LOUDR/N
FB J602
U501
Codec
ALC5616
4
1
3
2
Figure 13: Handset Circuit
3, 5
SPKP
Speaker output right channel
4, 6
SPKL
Speaker output left channel
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Table 6: Pin Assignment of J602
3.4. USIM Card Interface
The UMTS&LTE EVB has a USIM card interface. A suitable USIM card (3V or 1.8V) is required to start the
UMTS&LTE module. Figure 14 shows the simplified interface schematic for J702.
USIM card holder
USIM_VDD
USIM_CLK
USIM_DATA
USIM_RST
USIM_GND
J101 J702
C1
C7
C2
C3
Push-Push
USIM_VDD
USIM_DATA
USIM_RST
USIM_CLK
12
10
8
6
USIM_PRE.
GN
D
USIM_PRESENCE 14 CD2
CD1
Figure 14: Simplified USIM Card Interface Schematic
J401 Pin
Pin Name
Function
1
MICN
Negative microphone input
2
SPKN
Negative loud speaker output
3
SPKP
Positive loud speaker output
4
MICP
Positive microphone input
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