Quectel Wireless Solutions 201404UC15 Users Manual
UC15 Hardware Design
UMTS/HSDPA Module Series
Rev. UC15_Hardware_Design_V1.3
Date: 2014-04-21
www.quectel.com
UMTS/HSDPA Module Series
UC15 Hardware Design
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Copyright © Quectel Wireless Solutions Co., Ltd. 2014. All rights reserved.
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About the Document
History
Revision Date Author Description
1.0 2013-11-26 Mountain ZHOU Initial
1． Modified packaging information of UC15 in the
Chapter 7.3.
1.1 2014-01-15 Huik LI
1.2 2014-02-14 Huik LI Modified the frequency bands of UC15-A.
1.3 2014-04-21 Huik LI
2． Modified Figure 4 and Figure 11.
3． Modified the description of command AT+CFUN
in the Chapter 3.5.2.
1. Modified current consumption in Chapter 5.4.
2. Added PCM feature in Chapter 3.12.
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Contents
About the Document ................................................................................................................................ 2
Contents .................................................................................................................................................... 3
Table Index ............................................................................................................................................... 6
Figure Index .............................................................................................................................................. 7
1 Introduction ....................................................................................................................................... 9
1.1. Safety Information ................................................................................................................... 9
2 Product Concept ............................................................................................................................. 11
2.1. General Description ...............................................................................................................11
2.2. Directives and Standards ...................................................................................................... 12
2.2.1. FCC Statement ............................................................................................................ 12
2.2.2. FCC Radiation Exposure Statement ............................................................................ 12
2.3. Key Features ......................................................................................................................... 13
2.4. Functional Diagram ............................................................................................................... 15
2.5. Evaluation Board ................................................................................................................... 16
3 Application Interface ....................................................................................................................... 17
3.1. General Description .............................................................................................................. 17
3.2. Pin Assignment ..................................................................................................................... 18
3.3. Pin Description ...................................................................................................................... 19
3.4. Operating Modes .................................................................................................................. 24
3.5. Power Saving ........................................................................................................................ 25
3.5.1. Sleep Mode.................................................................................................................. 25
3.5.1.1. UART Application ............................................................................................... 25
3.5.1.2. USB Application with Suspend Function ............................................................ 26
3.5.1.3. USB Application without Suspend Function ....................................................... 27
3.5.2. Minimum Functionality Mode ....................................................................................... 27
3.6. Power Supply ........................................................................................................................ 28
3.6.1. Power Supply Pins ....................................................................................................... 28
3.6.2. Decrease Voltage Drop ................................................................................................ 28
3.6.3. Reference Design for Power Supply ............................................................................ 29
3.6.4. Monitor the Power Supply ............................................................................................ 30
3.6.5. VDD_EXT .................................................................................................................... 30
3.7. Turn on and off Scenarios ..................................................................................................... 30
3.7.1. Turn on Module by PWRKEY Pin ................................................................................ 30
3.7.2. Turn off Module ............................................................................................................ 32
3.7.2.1. Turn off Module by PWRKEY Pin ...................................................................... 32
3.7.2.2. Turn off Module by AT Command ...................................................................... 33
3.7.2.3. Automatic Shutdown .......................................................................................... 33
3.8. Reset the Module .................................................................................................................. 34
3.9. UART Interface ..................................................................................................................... 35
3.9.1. The Connection of UART ............................................................................................. 36
3.9.2. UART Application ......................................................................................................... 38
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3.10. Behavior of the RI ................................................................................................................. 39
3.11. Analog Audio Interface .......................................................................................................... 40
3.11.1. Decrease TDD Noise and Other Noise ........................................................................ 41
3.11.2. Microphone Interfaces Application ............................................................................... 42
3.11.3. Receiver and Speaker Interface Application ................................................................ 43
3.11.4. Earphone Interface Application .................................................................................... 45
3.12. PCM and I2C Interface .......................................................................................................... 46
3.13. USIM Card Interface ............................................................................................................. 48
3.13.1. USIM Card Application ................................................................................................. 48
3.13.2. Design Considerations for USIM Card Holder ............................................................. 50
3.14. USB Interface ........................................................................................................................ 53
3.15. ADC Function ........................................................................................................................ 54
3.16. Network Status Indication ...................................................................................................... 55
3.17. Operating Status Indication ................................................................................................... 56
4 Antenna Interface ............................................................................................................................ 58
4.1. Antenna Interface .................................................................................................................. 58
4.1.1. Pin Definition ................................................................................................................ 58
4.1.2. Operating Frequency ................................................................................................... 58
4.1.3. Reference Design ........................................................................................................ 58
4.2. Antenna Installation ............................................................................................................... 59
4.2.1. Antenna Requirement .................................................................................................. 59
4.2.2. Install the Antenna with RF Connector ......................................................................... 59
5 Electrical, Reliability and Radio Characteristics .......................................................................... 62
5.1. Absolute Maximum Ratings .................................................................................................. 62
5.2. Power Supply Ratings ........................................................................................................... 63
5.3. Operating Temperature ......................................................................................................... 63
5.4. Current Consumption ............................................................................................................ 64
5.5. RF Output Power .................................................................................................................. 65
5.6. RF Receiving Sensitivity ....................................................................................................... 65
5.7. Electrostatic Discharge ......................................................................................................... 66
6 Mechanical Dimensions.................................................................................................................. 67
6.1. Mechanical Dimensions of the Module.................................................................................. 67
6.2. Footprint of Recommendation ............................................................................................... 69
6.3. Top View of the Module ......................................................................................................... 70
6.4. Bottom View of the Module ................................................................................................... 70
7 Storage and Manufacturing ............................................................................................................ 71
7.1. Storage.................................................................................................................................. 71
7.2. Manufacturing and Welding .................................................................................................. 71
7.3. Packaging ............................................................................................................................. 72
8 Appendix A Reference .................................................................................................................... 74
9 Appendix B GPRS Coding Scheme ............................................................................................... 77
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10 Appendix C GPRS Multi-slot Class ................................................................................................ 78
11 Appendix D EDGE Modulation and Coding Scheme .................................................................... 79
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Table Index
TABLE 1: FREQUENCY BANDS OF UC15 SERIES ......................................................................................... 11
TABLE 2: UC15 KEY FEATURES ..................................................................................................................... 13
TABLE 3: IO PARAMETERS DEFINITION ........................................................................................................ 19
TABLE 4: PIN DESCRIPTION ........................................................................................................................... 19
TABLE 5: OVERVIEW OF OPERATING MODES ............................................................................................. 24
TABLE 6: VBAT AND GND PIN ......................................................................................................................... 28
TABLE 7: ELECTRICAL CHARACTERISTICS OF VDD_EXT ......................................................................... 30
TABLE 8: PWRKEY PIN DESCRIPTION .......................................................................................................... 30
TABLE 9: RESET_N PIN DESCRIPTION ......................................................................................................... 34
TABLE 10: PIN DEFINITION OF THE UART INTERFACE ............................................................................... 35
TABLE 11: LOGIC LEVELS OF DIGITAL I/O .................................................................................................... 36
TABLE 12: BEHAVIOR OF THE RI ................................................................................................................... 40
TABLE 13: PIN DEFINITION OF THE AUDIO INTERFACE ............................................................................. 40
TABLE 14: MICROPHONE CHARACTERISTICS............................................................................................. 45
TABLE 15: SPEAKER CHARACTERISTICS .................................................................................................... 45
TABLE 16: PIN DEFINITION OF PCM AND I2C INTERFACE .......................................................................... 47
TABLE 17: PIN DEFINITION OF THE USIM INTERFACES ............................................................................. 48
TABLE 18: PIN DESCRIPTION OF MOLEX USIM CARD HOLDER ................................................................ 51
TABLE 19: PIN DESCRIPTION OF AMPHENOL USIM CARD HOLDER ........................................................ 52
TABLE 20: USB PIN DESCRIPTION ................................................................................................................ 53
TABLE 21: PIN DEFINITION OF THE ADC ...................................................................................................... 55
TABLE 22: CHARACTERISTICS OF THE ADC ................................................................................................ 55
TABLE 23: PIN DEFINITION OF NETWORK INDICATOR ............................................................................... 55
TABLE 24: WORKING STATE OF THE NETWORK INDICATOR .................................................................... 55
TABLE 25: PIN DEFINITION OF STATUS ........................................................................................................ 56
TABLE 26: PIN DEFINITION OF THE RF ANTENNA ....................................................................................... 58
TABLE 27: MODULE OPERATING FREQUENCIES ........................................................................................ 58
TABLE 28: ANTENNA REQUIREMENTS .......................................................................................................... 59
TABLE 29: ABSOLUTE MAXIMUM RATINGS .................................................................................................. 62
TABLE 30: THE MODULE POWER SUPPLY RATINGS .................................................................................. 63
TABLE 31: OPERATING TEMPERATURE ........................................................................................................ 63
TABLE 32: MODULE CURRENT CONSUMPTION .......................................................................................... 64
TABLE 33: MODULE CONDUCTED RF OUTPUT POWER ............................................................................. 65
TABLE 34: MODULE CONDUCTED RECEIVING SENSITIVITY ..................................................................... 65
TABLE 35: ELECTROSTATICS DISCHARGE CHARACTERISTICS ............................................................... 66
TABLE 36: RELATED DOCUMENTS ................................................................................................................ 74
TABLE 37: TERMS AND ABBREVIATIONS ...................................................................................................... 74
TABLE 38: DESCRIPTION OF DIFFERENT CODING SCHEMES .................................................................. 77
TABLE 39: DESCRIPTION OF DIFFERENT CODING SCHEMES .................................................................. 78
TABLE 40: EDGE MODULATION AND CODING SCHEME ............................................................................. 79
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Figure Index
FIGURE 1: FUNCTIONAL DIAGRAM ............................................................................................................... 16
FIGURE 2: PIN ASSIGNMENT (TOP VIEW) .................................................................................................... 18
FIGURE 3: UART SLEEP APPLICATION ......................................................................................................... 26
FIGURE 4: USB APPLICATION WITH SUSPEND FUNCTION ........................................................................ 26
FIGURE 5: USB SLEEP APPLICATION WITHOUT SUSPEND FUNCTION .................................................... 27
FIGURE 6: STAR STRUCTURE OF THE POWER SUPPLY ............................................................................ 29
FIGURE 7: REFERENCE CIRCUIT OF POWER SUPPLY .............................................................................. 29
FIGURE 8: TURN ON THE MODULE BY DRIVING CIRCUIT.......................................................................... 31
FIGURE 9: TURN ON THE MODULE BY KEYSTROKE .................................................................................. 31
FIGURE 10: TIMING OF TURNING ON MODULE ........................................................................................... 32
FIGURE 11: TIMING OF TURNING OFF MODULE .......................................................................................... 33
FIGURE 12: REFERENCE CIRCUIT OF RESET_N ........................................................................................ 34
FIGURE 13: TIMING OF RESETTING MODULE ............................................................................................. 35
FIGURE 14: CONNECTION OF FULL FUNCTIONAL UART PORT ................................................................ 36
FIGURE 15: CONNECTION OF THREE LINES UART PORT ......................................................................... 37
FIGURE 16: CONNECTION OF UART PORT WITH HARDWARE FLOW CONTROL .................................... 37
FIGURE 17: 3.3V LEVEL MATCH CIRCUIT ..................................................................................................... 38
FIGURE 18: 5V LEVEL MATCH CIRCUIT ........................................................................................................ 38
FIGURE 19: RS232 LEVEL SHIFT CIRCUIT .................................................................................................... 39
FIGURE 20: RI BEHAVIOR ............................................................................................................................... 40
FIGURE 21: MICROPHONE REFERENCE DESIGN FOR AIN1&AIN2 ........................................................... 42
FIGURE 22: REFERENCE DESIGN FOR AOUT1 ........................................................................................... 43
FIGURE 23: REFERENCE DESIGN WITH AN AMPLIFIER FOR AOUT1 ....................................................... 43
FIGURE 24: REFERENCE DESIGN FOR AOUT2 ........................................................................................... 44
FIGURE 25: REFERENCE DESIGN WITH AN AMPLIFIER FOR AOUT2 ....................................................... 44
FIGURE 26: REFERENCE DESIGN FOR AN EARPHONE ............................................................................. 45
FIGURE 27: PRIMARY MODE TIMING ............................................................................................................ 46
FIGURE 28: AUXILIARY MODE TIMING .......................................................................................................... 47
FIGURE 29: REFERENCE CIRCUIT OF PCM APPLICATION WITH AUDIO CODEC .................................... 48
FIGURE 30: REFERENCE CIRCUIT OF THE 8-PIN USIM CARD .................................................................. 49
FIGURE 31: REFERENCE CIRCUIT OF THE 6-PIN USIM CARD .................................................................. 50
FIGURE 32: MOLEX 91228 USIM CARD HOLDER ......................................................................................... 51
FIGURE 33: AMPHENOL C707 10M006 512 2 USIM CARD HOLDER ........................................................... 52
FIGURE 34: REFERENCE CIRCUIT OF USB APPLICATION ......................................................................... 53
FIGURE 35: TEST POINTS OF FIRMWARE UPGRADE ................................................................................. 54
FIGURE 36: REFERENCE CIRCUIT OF THE NETWORK INDICATOR .......................................................... 56
FIGURE 37: REFERENCE CIRCUIT OF THE STATUS ................................................................................... 57
FIGURE 38: REFERENCE CIRCUIT OF ANTENNA INTERFACE ................................................................... 59
FIGURE 39: DIMENSIONS OF THE UF.L-R-SMT CONNECTOR (UNIT: MM) ................................................ 60
FIGURE 40: MECHANICALS OF UF.L-LP CONNECTORS (UNIT: MM) .......................................................... 60
FIGURE 41: SPACE FACTOR OF MATED CONNECTOR (UNIT: MM) ........................................................... 61
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FIGURE 42: UC15 TOP AND SIDE DIMENSIONS ........................................................................................... 67
FIGURE 43: UC15 BOTTOM DIMENSIONS (BOTTOM VIEW) ....................................................................... 68
FIGURE 44: BOTTOM PADS DIMENSIONS (BOTTOM VIEW) ....................................................................... 68
FIGURE 45: RECOMMENDED FOOTPRINT (TOP VIEW) .............................................................................. 69
FIGURE 46: TOP VIEW OF THE MODULE ...................................................................................................... 70
FIGURE 47: BOTTOM VIEW OF THE MODULE .............................................................................................. 70
FIGURE 48: REFLOW SOLDERING PROFILE ................................................................................................ 72
FIGURE 49: CARRIER TAPE ............................................................................................................................ 73
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1 Introduction
This document defines the UC15 module and describes its hardware interface which are connected with
your application and the air interface.
This document can help you quickly understand module interface specifications, electrical and
mechanical details. Associated with application notes and user guide, you can use UC15 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 UC15 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 mobile while driving (even with a handsfree kit) cause 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
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 Airplane
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.
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GSM 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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2 Product Concept
2.1. General Description
UC15 is an embedded UMTS/HSDPA module. Its UMTS-based modem provides data connectivity on
HSDPA, WCDMA, EDGE and GPRS networks. UC15 offers a maximum data rate of 3.6Mbps on
downlink and also supports GPRS/EDGE multi-slot class 12 as well. GPRS supports the coding schemes
CS-1, CS-2, CS-3 and CS-4. EDGE supports CS-1 to CS-4 and MCS-1 to MCS-9 coding schemes. UC15
includes two variants, UC15-A and UC15-E. And both of them are divided into Telematics version and
Data Only version. Telematics version supports voice and data, while Data Only version only supports
data. This is convenient for you to choose the dedicated type based on the wireless network configuration.
The following table shows the entire radio band configuration of UC15 series.
Table 1: Frequency Bands of UC15 Series
Module
UC15
More details about GPRS/EDGE multi-slot configuration and coding schemes, please refer to Appendix B,
C and D.
With a tiny profile of 29.0mm × 29.0mm × 2.5mm, UC15 can meet almost all requirements for M2M
application such as automotive, metering, tracking system, security solutions, routers, wireless POS,
mobile computing devices, PDA phone and tablet PC, etc.
UC15 is an SMD type module, which can be embedded in your application through its 108-pin pads
including 68 LCC signal pads and 40 other pads.
UC15 is integrated with internet service protocols such as TCP/UDP and PPP. Extended AT commands
have been developed for you to use these internet service protocols easily.
GSM
850
EGSM
900
DCS
1800
PCS
1900
UMTS
850
UMTS
900
UMTS
1900
UMTS
2100
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2.2. Directives and Standards
The UC15 module is designed to comply with the FCC statements. FCC ID: XMR201404UC15
If the FCC ID of the module cannot be seen by the user in the final installation, the host device must show
the statement: “Contains FCC ID: XMR201404UC15” in a visible and permanent location”
2.2.1. FCC Statement
1. This device complies with Part 15 of the FCC rules. Operation is subject to the following conditions:
a) This device may not cause harmful interference.
b) This device must accept any interference received, including interference that may cause undesired
operation.
2. Changes or modifications not expressly approved by the party responsible for compliance could avoid
the user’s authority to operate the equipment.
2.2.2. FCC Radiation Exposure Statement
This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment.
This equipment should be installed and operated with minimum distance 20cm between the radiator and
your body as well as kept minimum 20cm from radio antenna depending on the Mobile status of this
module usage.
This module should NOT be installed and operating simultaneously with other radio.
The manual of the host system, which uses UC15, must include RF exposure warning statement to
advice user should keep minimum 20cm from the radio antenna of UC15 module depending on the
Mobile status.
Note: If a portable device (such as PDA) uses UC15 module, the device needs to do permissive change
and SAR testing.
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2.3. Key Features
The following table describes the detailed features of UC15 module.
Table 2: UC15 Key Features
Feature Details
Power Supply
Supply voltage: 3.3V~4.3V
Typical supply voltage: 3.8V
Frequency Bands UC15-A: GSM850/900/1800/1900, UMTS850/1900
HSDPA R5: Max 3.6Mbps (DL)
WCDMA R99: Max 384kbps (DL)/Max 384kbps (UL)
Transmission Data
EDGE: Max 236.8kbps (DL only)
GPRS: Max 85.6kbps (DL)/Max 85.6kbps (UL)
CSD: 64kbps
Class 4 (33dBm±2dB) for GSM850
Class 1 (30dBm±2dB) for PCS1900
Transmitting Power
Class E2 (27dBm±3dB) for GSM850 and EGSM900 8-PSK
Class E2 (26dBm+3/-4dB) for DCS1800 and PCS1900 8-PSK
Class 3 (24dBm+1/-3dB) for UMTS850/1900
HSDPA data rate is corresponded with 3GPP R5. 3.6Mbps on
HSDPA and WCDMA
Features
downlink.
WCDMA data rate is corresponded with 3GPP R99/R4. 384kbps on
downlink and 384kbps on uplink.
Support both 16-QAM and QPSK modulation.
GPRS:
Support GPRS multi-slot class 12 (10 by default)
Coding scheme: CS-1, CS-2, CS-3 and CS-4
Maximum of four Rx time slots per frame
EDGE:
GSM/GPRS/EDGE
Data Features
Support EDGE multi-slot class 12 (12 by default).
Support GMSK and 8-PSK for different MCS (Modulation and Coding
scheme).
Downlink coding schemes: CS 1-4 and MCS 1-9.
CSD:
CSD transmission rates: 64kbps non-transparent.
Support Unstructured Supplementary Services Data (USSD).
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Support TCP/PPP/UDP protocols.
Internet Protocol Features
Support the protocols PAP (Password Authentication Protocol) and
CHAP (Challenge Handshake Authentication Protocol) usually used
for PPP connections.
Text and PDU mode
SMS
Point to point MO and MT
SMS cell broadcast
SMS storage: ME by default
USIM Interface Support USIM/SIM card: 1.8V, 3.0V
Support two analog input channels and two analog output channels.
Audio Features
GSM: HR/FR/EFR/AMR/AMR-WB
WCDMA: AMR/AMR-WB
Echo cancellation and noise suppression.
Used for audio function with external codec.
Support 16-bit linear data formats.
PCM Interface*
Support long frame sync and short frame sync.
Support master and slave mode, but must be the master in long frame
sync.
Seven lines on UART interface.
UART Interface
Support RTS and CTS hardware flow control.
Baud rate can reach up to 921600bps, 115200bps by default.
Used for AT command, data transmission and firmware upgrade.
Compliant with USB 2.0 specification (slave only), the data transfer
rate can reach up to 480 Mbps at high speed mode.
Used for AT command communication, data transmission, software
USB Interface
debug and firmware upgrade.
USB driver: support Windows XP, Windows Vista, Windows 7,
Windows 8, Windows CE5.0/6.0, Windows Mobile 6.1/6.5, Linux 2.6 or
later, Android 2.3 or later.
AT Commands
Compliant with 3GPP TS 27.007, 27.005 and Quectel enhanced AT
commands.
Network Indication Indicate network activity status.
Antenna Interface Connected via 50ohm antenna pad.
Physical Characteristics
Size: 29.0±0.15 × 29.0±0.15 × 2.5±0.2 mm
Weight: Approx. 4.3g
Normal operation: -35°C ~ +75°C
Temperature Range
Restricted operation: -40°C ~ -35°C and +75°C ~ +85°C 1)
Storage temperature: -45°C ~ +90°C
Firmware Upgrade USB interface (by default) and UART interface.
RoHS All hardware components are fully compliant with EU RoHS directive.
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NOTES
1. “1)” means when the module works within this temperature range, RF performance might degrade.
For example, the frequency error or the phase error would increase.
2. “*” means this feature is under development.
2.4. Functional Diagram
The following figure shows a block diagram of UC15 and illustrates the major functional parts.
Power management unit
Baseband
DDR+NAND flash
Radio frequency
Peripheral interface
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Figure 1: Functional Diagram
2.5. Evaluation Board
In order to help you to develop applications with UC15, Quectel supplies an evaluation board (EVB),
RS-232 to USB cable, USB data cable, power adapter, earphone, antenna and other peripherals to
control or test the module. For details, please refer to document [2].
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3 Application Interface
3.1. General Description
UC15 is equipped with a 68-pin 1.3mm pitch SMT pads plus 40-pin ground pads and reserved pads that
connect to cellular application platform. Sub-interfaces included in these pads are described in details in
the following chapters:
Power supply
UART interface
Audio interface
PCM interface
USIM interface
USB interface
ADC interface
Indicator interface
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3.2. Pin Assignment
The following figure shows the pin assignment of the UC15 module.
USB_VBUS
USB_DM
USB_DP
RXD
DTR
TXD
646362616059585756555453525150
DCD
RTS
CTS
VBAT_BB
STATUS
RI
VBAT_BB
VBAT_RF
VBAT_RF
GND
49
171819202122232425262728293031
SPK1P*
AGND*
SPK1N*
SPK2P*
MIC1P*
MIC2P*
MIC1N*
MIC2N*
RESERVED
RESERVED
RESERVED
RESET_N
PWRKEY
32
RESERVED
RESERVED
RESERVED
NOTES
Figure 2: Pin Assignment (Top View)
1. Keep all RESERVED pins and unused pins unconnected.
2. GND pads 81~108 should be connected to ground in the design, and RESERVED pads 69~80
should be unconnected.
3. “*” means these functions are only supported in Telematics version. Meanwhile, PCM function is still
under development.
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3.3. Pin Description
The pin definition of UC15 is shown in table 4.
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
Table 4: Pin Description
Power Supply
Pin Name Pin No. I/O Description DC Characteristics Comment
VBAT_BB 52,53 PI
Power supply for
module baseband
part.
Vmax=4.3V
Vmin=3.3V
Vnorm=3.8V
It must be able to
provide sufficient
current up to 0.8A.
It must be able to
provide sufficient
current in a
transmitting burst
which typically
VBAT_RF 50,51 PI
Power supply for
module RF part.
Vmax=4.3V
Vmin=3.3V
Vnorm=3.8V
rises to 2.0A.
It is recommend to
add a 2.2~4.7uF
VDD_EXT 7 PO
Provide 2.6V for
external circuit.
Vnorm=2.6V
I
max=100mA
O
bypass capacitor
when using this
pin for power
supply.
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UMTS/HSDPA Module Series
UC15 Hardware Design
42,44~49
GND
65,67~68
Ground.
,81~108
Turn On/Off
Pin Name Pin No. I/O Description DC Characteristics Comment
R
≈200kΩ
PU
PWRKEY 18 DI
Turn on/off the
module.
RESET_N 17 DI Reset the module.
V
max=2.1V
IH
V
min=1.3V
IH
V
max=0.5V
IL
max=2.1V
V
IH
V
min=1.3V
IH
V
max=0.5V
IL
Pull-up to 1.8V
internally.
Pull-up to 1.8V
internally.
Indication
Pin Name Pin No. I/O Description DC Characteristics Comment
V
max=2.6V
STATUS 54 DO
Indicate the module
operating status.
Indicate the module
NETLIGHT 6 DO
network activity
status.
OH
V
min=2.15V
OH
V
max=0.45V
OL
max=2.6V
V
OH
V
min=2.15V
OH
V
max=0.45V
OL
2.6V power
domain.
2.6V power
domain.
USB Interface
Pin Name Pin No. I/O Description DC Characteristics Comment
Vmax=5.25V
USB_VBUS 64 PI USB detection.
Vmin=3.0V
Vnorm=5.0V
USB_DP 62 IO
USB differential data
bus.
Compliant with USB 2.0
standard specification.
Require differential
impedance of 90Ω.
USB_DM 63 IO
USB differential data
bus.
Compliant with USB 2.0
standard specification.
Require differential
impedance of 90Ω.
USIM Interface
Pin Name Pin No. I/O Description DC Characteristics Comment
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UMTS/HSDPA Module Series
UC15 Hardware Design
USIM_GND 8
USIM_VDD 12 PO
USIM_DATA 13 IO
USIM_CLK 14 DO
Specified ground for
USIM card.
Power supply for
USIM card.
Data signal of
USIM card.
Clock signal of
USIM card.
For 1.8V USIM:
Vmax=1.95V
Vmin=1.65V
For 3.0V USIM:
Either 1.8V or 3.0V is
supported by the
module automatically.
Vmax=3.0V
Vmin=2.7V
For 1.8V USIM:
V
max = 0.6V
IL
V
min =1.2V
IH
V
max=0.45V
OL
V
min=1.35V
OH
For 3.0V USIM:
V
max=1.0V
IL
V
min=1.95V
IH
V
max=0.45V
OL
V
min=2.55V
OH
Pull-up to USIM_VDD
with 10k resistor
internally.
For 1.8V USIM:
V
max=0.45V
OL
V
min=1.35V
OH
For 3.0V USIM:
V
max=0.45V
OL
V
min=2.55V
OH
For 1.8V USIM:
V
max=0.45V
OL
V
min=1.35V
OH
For 3.0V USIM:
V
max=0.45V
OL
V
min=2.55V
OH
V
min=-0.3V
IL
V
max=0.91V
IL
V
min=1.69V
IH
V
max=2.9V
IH
2.6V power domain.
USIM_RST 15 DO
USIM_
PRESENCE
11 DI
Reset signal of
USIM card.
USIM card input
detection.
ADC Interface
Pin Name Pin No. I/O Description DC Characteristics Comment
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UMTS/HSDPA Module Series
UC15 Hardware Design
General purpose
ADC0 41 AI
analog to digital
converter.
General purpose
ADC1 40 AI
analog to digital
converter.
Voltage range:
0V to 2.1V
Voltage range:
0V to 2.1V
UART Interface
Pin Name Pin No. I/O Description DC Characteristics Comment
V
max=0.45V
RI 55 DO Ring indicator.
DCD 56 DO
Data carrier
detection.
CTS 57 DO Clear to send.
RTS 58 DI Request to send.
DTR 59 DI Data terminal ready.
TXD 60 DO Transmit data.
RXD 61 DI Receive data.
OL
V
OH
V
OL
V
OH
V
OL
V
OH
V
min=-0.3V
IL
V
max=0.91V
IL
V
IH
V
IH
V
min=-0.3V
IL
V
max=0.91V
IL
V
IH
V
IH
V
OL
V
OH
V
min=-0.3V
IL
V
max=0.91V
IL
V
IH
V
IH
min=2.15V
max=0.45V
min=2.15V
max=0.45V
min=2.15V
min=1.69V
max=2.9V
min=1.69V
max=2.9V
max=0.45V
min=2.15V
min=1.69V
max=2.9V
2.6V power domain.
2.6V power domain.
2.6V power domain.
2.6V power domain.
2.6V power domain.
Pull-up by default.
2.6V power domain.
2.6V power domain.
RF Interface
Pin Name Pin No. I/O Description DC Characteristics Comment
RF_ANT 43 IO RF antenna pad. 50Ω impedance.
Analog Audio Interface
Pin Name Pin No. I/O Description DC Characteristics Comment
MIC1P 23 AI Audio positive input.
MIC1N 24 AI
Audio negative
input.
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UMTS/HSDPA Module Series
UC15 Hardware Design
MIC2P 25 AI
MIC2N 26 AI
SPK1P 22 AO
SPK1N 21 AO
SPK2P 20 AO
Auxiliary audio
positive input.
Auxiliary audio
negative input.
Audio positive
output.
Audio negative
output.
Auxiliary audio
positive output.
Separate ground for
AGND 19 Analog ground. Ground.
external audio
circuits.
PCM Interface
Pin Name Pin No. I/O Description DC Characteristics Comment
V
max=0.45V
PCM_DOUT 34 DO PCM data output.
PCM_DIN 35 DI PCM data input.
PCM_CLK 36 IO PCM data bit clock.
PCM_SYNC 37 IO
PCM data frame
sync signal
OL
V
min=2.15V
OH
V
min=-0.3V
IL
V
max=0.91V
IL
V
min=1.69V
IH
V
max=2.9V
IH
V
min=-0.3V
IL
V
max=0.91V
IL
V
min=1.69V
IH
V
max=2.9V
IH
V
max=0.45V
OL
V
min=2.15V
OH
V
max=0.45V
OL
V
min=2.15V
OH
2.6V power domain.
2.6V power domain.
2.6V power domain.
2.6V power domain.
I2C Interface
Pin Name Pin No. I/O Description DC Characteristics Comment
V
min=-0.3V
IL
V
max=0.91V
I2C_SDA 38 IO I2C serial data.
I2C_SCL 39 DO I2C serial clock.
IL
V
min=1.69V
IH
V
max=2.9V
IH
V
max=0.45V
OL
V
min=2.15V
OH
V
max=0.45V
OL
V
min=2.15V
OH
External pull-up
resistor is required.
2.6V only.
External pull-up
resistor is required.
UC15_Hardware_Design Confidential / Released 23 / 79
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