Product is deemed accepted by Recipient and is pr ovided without interface to Recipient´s products. The
Product constitutes pre-release version and code and ma y be changed substantially befor e commercial
release. The Product is provided on an “as is” basis only and m ay contain deficiencies o r inadequ acies.
The Product is provided without warranty of any kind, express or implied. To the maximum exten t permitted by applicable law, Siemens further disclaims all warranties, including without limitation any
implied warranties of merchantability, fitness for a particular purpose and noninfringement of third-party
rights. The entire risk arising out of the use or performance of the Product and documentation remains
with Recipient. This Product is not intended for use in life support appliances, devices or systems where
a malfunction of the product can reasonably be expected to re sult in per sona l injury. Applications incorporating the described product must be designed to be in accordance with the technical specifications
provided in these guidelines. Failure to comply with any of the required pr ocedures can result in malfunctions or serious discrepancies in results. Furthermore, all safety instructions regarding the use of mobile
technical systems, including GSM products, which also apply to cellular phones must be followed. Siemens AG customers using or selling this product for use in any applications do so at their own risk and
agree to fully indemnify Siemens for any damages resulting from illegal use or resale. To the maximum
extent permitted by applicable law, in no event shall Siemens or its suppliers be liable for any consequential, incidental, direct, indirect, punitive or other damages whatsoever (including, without limitation,
damages for loss of business profits, business interruption, loss of business information or data, or other
pecuniary loss) arising out the use of or inability to use the Product, even if Siemens has been advised
of the possibility of such damages. Subject to change without notice at any time.
Transmittal, reproduction, dissemination and/or editing of this document as well as utilization of its contents and communication thereof to others without express authorization are prohibited. Offenders will
be held liable for payment of damages. All rights created by patent grant or registration of a utility model
or design patent are reserved.
Table 15:Summary of reliability test conditions............................................................. 26
Table 16:Electrical and mechanical characteristics of the board-to-board connector... 29
Table 17:List of parts and accessories.......................................................................... 33
Table 18:Molex sales contacts (subject to change)...................................................... 34
Table 19:Hirose sales contacts (subject to change)..................................................... 34
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HC25 Hardware Interface Overview
Figures
5
s
Figures
Figure 1:Restricted area around antenna pad (side and bottom view)......................... 18
Figure 2:Mechanical dimensions of U.FL-R-SMT connector.........................................19
Figure 3:U.FL-R-SMT connector with U.FL-LP-040 plug..............................................20
Figure 4:U.FL-R-SMT connector with U.FL-LP-066 plug..............................................20
Figure 5:Specifications of U.FL-LP-(V)-040(01) plug....................................................21
Figure 6:HC25 – Top and bottom view..........................................................................27
Figure 7:Dimensions of HC25 (all dimensions in mm)..................................................28
Figure 8:Mechanical dimensions of the board-to-board connector...............................30
Figure 9:Reference equipment for Type Approval........................................................ 31
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HC25 Hardware Interface Overview
1 Introduction
12
s
1Introduction
This document describes the hardware of the Siemens HC25 module that connects to the cellular device application and the air interface. It helps you quickly retrieve interface specifications, electrical and mechanical details and information on the requirements to be considered
for integrating further components.
1.1Related Documents
[1]HC25 AT Command Set 00.220
[2]HC25 Release Notes 00.220
1.2Terms and Abbreviations
AbbreviationDescription
ANSIAmerican National Standards Institute
AMRAdaptive Multirate
ARPAntenna Reference Point
B2BBoard-to-board connector
BBBaseband
BEPBit Error Probability
BTSBase Transceiver Station
CB or CBMCell Broadcast Message
CEConformité Européene (European Conformity)
CSCoding Scheme
CSCircuit Switched
CSDCircuit Switched Data
DACDigital-to-Analog Converter
dBm0Digital level, 3.14dBm0 corresponds to full scale, see ITU G.711, A-law
DCSDigital Cellular System
DLDownload
DRXDiscontinuous Reception
DSBDevelopment Support Board
DSPDigital Signal Processor
DTMFDual Tone Multi Frequency
DTXDiscontinuous Transmission
EDGEEnhanced Data rates for GSM Evolution
EFREnhanced Full Rate
EGSMEnhanced GSM
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1.2 Terms and Abbreviations
12
AbbreviationDescription
EMCElectromagnetic Compatibility
ERPEffective Radiated Power
ESDElectrostatic Discharge
ETSEuropean Telecommunication Standard
ETSIEuropean Telecommunications Standards Institute
FCCFederal Communications Commission (U.S.)
FDDFrequency Division Duplex
FDMAFrequency Division Multiple Access
FRFull Rate
GPRSGeneral Packet Radio Service
GSMGlobal Standard for Mobile Communications
HiZHigh Impedance
s
HSDPAHigh Speed Downlink Packed Access
HRHalf Rate
I/OInput/Output
IFIntermediate Frequency
IMEIInternational Mobile Equipment Identity
ISOInternational Standards Organization
ITUInternational Telecommunications Union
kbpskbits per second
LEDLight Emitting Diode
MbpsMbits per second
MCSModulation and Coding Scheme
MOMobile Originated
MSMobile Station, also referred to as TE
MTMobile Terminated
NTCNegative Temperature Coefficient
PBCCHPacket Switched Broadcast Contro l Channel
PCBPrinted Circuit Board
PCLPower Control Level
PCMPulse Code Modulation
PCSPersonal Communication System, also referred to as GSM 1900
PSPacket Switched
PDUProtocol Data Unit
PSKPhase Shift Keying
R&TTERadio and Telecommunication Terminal Equipment
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1.2 Terms and Abbreviations
12
AbbreviationDescription
RACHRandom Access Channel
RFRadio Frequency
RTCReal Time Clock
RxReceive Direction
SARSpecific Absorption Rate
SELVSafety Extra Low Voltage
SIMSubscri ber Identification Module
SLICSubscriber Line Interface Circuit
SMSShort Message Service
SRAMStatic Random Access Memory
SRBSignalling Radio Bearer
TATerminal adapter (e.g. GSM engine)
s
TDMATime Division Multiple Access
TETerminal Equipment
TSTechnical Specification
TxTransmit Direction
ULUpload
UMTSUniversal Mobile Telecommunications System
URCUnsolicited Res ult Code
USBUniversal Serial Bus
UICCUSIM Integrated Circuit Card
USIMUMTS Subscriber Identification Module
WCDMAWideband Code Division Multiple Access
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HC25 Hardware Interface Overview
1.3 Regulatory and Type Approval Information
12
s
1.3Regulatory and Type Approval Information
1.3.1Directives and Standards
HC25 has been designed to comply with the directives and standards listed below.
Table 1: Directives
99/05/ECDirective of the European Parliament and of the council of 9 March 1999
on radio equipment and telecommunications terminal equipment and the
mutual recognition of their conformity (in short referred to as R&TTE Directive 1999/5/EC).
The product is labeled with the CE conformity mark
2002/95/EC Directive of the European Parliament and of the Council of
27 January 2003 on the restriction of the use of certain
hazardous substances in electrical and electronic equipment (RoHS)
Table 2: Standards of North American type approval
CFR Title 47Code of Federal Regulations, Part 22 and Part 24 (Telecommunications,
PCS); US Equipment Authorization FCC
UL 60 950Product Safety Certification (Safety requirements)
NAPRD.03 V3.9.1 Overview of PCS Type certification review board Mobile Equipment Type
Certification and IMEI control
PCS Type Certification Review board (PTCRB)
RSS132, RSS133Canadian Standard
Table 3: Standards of European type approval
3GPP TS 51.010-1Digital cellular telecommunications system (Release 5); Mobile Station
(MS) conformance specification
ETSI EN 301 511 V9.0.2Candidate Harmonized European Standard (Telecommunications series)
Global System for Mobile communications (GSM); Harmonized standard
for mobile stations in the GSM 900 and DCS 1800 bands covering essential requirements under article 3.2 of the R&TTE directive (1999/5/EC)
(GSM 13.11 version 7.0.1 Release 1998)
GCF-CC V3.23.1 Global Certification Forum - Certification Criteria
ETSI EN 301 489-1
V1.4.1
Candidate Harmonized European Standard (Telecom munications serie s)
Electro Magnetic Compatibility and Radio spectrum Matters (ERM); Elec-
tro Magnetic Compatibility (EMC) standard for radio equipment and ser-
vices; Part 1: Common Technical Requirements
ETSI EN 301 489-7
V1.2.1 (2000-09)
IEC/EN 60950-1 (2001)Safety of information technology equipment (2000)
HC25_HO_v00.220Page 9 of 392007-03-20
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Candidate Harmonized European Standard (Telecom munications serie s)
Electro Magnetic Compatibility and Radio spectrum Matters (ERM); Elec-
tro Magnetic Compatibility (EMC) standard for radio equipment and ser-
vices; Part 7: Specific conditions for mobile and portable radio and
ancillary equipment of digital cellular radio telecommunications systems
(GSM and DCS)
HC25 Hardware Interface Overview
1.3 Regulatory and Type Approval Information
12
Table 3: Standards of European type approval
EN 301 489-24 V1.2.1Electromagnetic compatibility and Radio Spectrum Matters (ERM); Elec-
tromagnetic Compatibility (EMC) standard for radio equipment and ser-
vices; Part 24: Specific conditions for IMT-2000 CDMA Direct Spread
(UTRA) for Mobile and portable (UE) radio and ancillary equipment
EN 301 908-01 V2.2.1Electromagnetic compatibility and Radio spectrum Matters (ERM); Base
Stations (BS) and User Equipment (UE) for IMT-2000 Third Generation
cellular networks; Part 1: Harmonized EN for IMT-2000, introduction and
common requirements of article 3.2 of the R&T TE Direc tive
EN 301 908-02 V2.2.1Electromagnetic compatibility and Radio spectrum Matters (ERM); Base
Stations (BS) and User Equipment (UE) for IMT-2000 Third Generation
cellular networks; Part 2: Harmonized EN for IMT-2000, CDMA Direct
Spread (UTRA FDD) (UE) covering essential requirements of article 3.2 of
the R&TTE Directive
3GPP TS 34.124Electromagnetic Compatibility (EMC) for mobile terminals and ancillary
equipment.
3GPP TS 34.121Technical Specification Group Radio Access Network; Terminal conform-
ance specification; Radio transmission and reception (FDD)
formance specification.
3GPP TS 34.123-3User Equipment (UE) conformance specification; Part 3: Abstract Test
Suites.
Table 4: Requirements of quality
IEC 60068Environmental te stin g
DIN EN 60529IP codes
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HC25 Hardware Interface Overview
1.4 SAR requirements specific to portable mobiles
12
s
1.4SAR requirements specific to portable mobiles
Mobile phones, PDAs or other portable transmitters and receivers incorporating a GSM module
must be in accordance with the guidelines for human exposure to radio frequency energy. This
requires the Specific Absorption Rate (SAR) of portable HC25 based applications to be evaluated and approved for compliance with national and/or international regulations.
Since the SAR value varies significantly with the individual product design manufacturers are
advised to submit their product for approval if designed for portable use. For European and US
markets the relevant directives are mentioned below. It is the responsibility of the manufacturer
of the final product to verify whether or not further standards, recommendations or directives
are in force outside these areas.
Products intended for sale on US markets
ES 59005/ANSI C95.1Considerations for evaluation of human exposure to Electromagnetic
Fields (EMFs) from Mobile Telecommunication Equipment (MTE) in
the frequency range 30MHz - 6GHz
Products intended for sale on European markets
EN 50360Product standard to demonstrate the compliance of mobile phones with
the basic restrictions related to human exposure to electromagnetic
fields (300MHz - 3GHz)
IMPORTANT:
Manufacturers of portable applications based on HC25 modules are required to have their final
product certified and apply for their own FCC Grant and Industry Canada Certificate related to
the specific portable mobile. See also Section 7.2.
1.4.1SELV Requirements
The power supply connected to the HC25 module shall be in compliance with the SELV
requirements defined in EN 60950-1.
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HC25 Hardware Interface Overview
1.5 Safety Precautions
12
s
1.5Safety Precautions
The following safety precautions must be observed during all phases of the operation, usage,
service or repair of any cellular terminal or mobile incorporating HC25. Manufacturers of the
cellular terminal are advised to convey the following safety information to users and operating
personnel and to incorporate these guidelines into all manuals supplied with the product. Failure to comply with these precautions violates safety standards of design, manufacture and
intended use of the product. Siemens AG assumes no liability for customer’s failure to comply
with these precautions.
When in a hospital or other health care facility, observe the restrictions on the use of
mobiles. Switch the cellular terminal or mobile off, if instructed to do so by the guidelines posted in sensitive areas. Medical equipment may be sensitive to RF energy.
The operation of cardiac pacemakers, other implanted med ical equipment and hearing
aids can be affected by interference from cellular terminals or mobiles placed close to
the device. If in doubt about potential danger, contact the physician or the manufacturer of the device to verify that the equipment is properly shielded. Pacemaker
patients are advised to keep their h and-held mobile away from the pacemaker, while
it is on.
Switch off the cellular terminal or mobile before boarding an aircraft. Make su re it cannot be switched on inadvertently. The operation of wirele ss appliances in an aircraft is
forbidden to prevent interference with communications systems. Failure to observe
these instructions may lead to the suspension or denial of cellular services to the
offender, legal action, or both.
Do not operate the cellular terminal or mobile in the presence of flammable gases or
fumes. Switch off the cellular terminal when you are near petrol stations, fuel d epots,
chemical plants or where blasting operations are in progress. Oper ation of any electrical equipment in potentially explosive atmospheres can constitute a safety hazard.
Your cellular terminal or mobile receives and transmits radio frequency energy while
switched on. Remember that interference can occur if it is used close to TV sets,
radios, computers or inadequately shielded equipment. Follow any special re gulations
and always switch off the cellular terminal or mobile wherever forbidden, or when you
suspect that it may cause interference or danger.
Road safety comes first! Do not use a hand-held cellular terminal or mobile when driving a vehicle, unless it is securely mounted in a holder for speakerphone operation.
Before making a call with a hand-held terminal or mobile, park the vehicle.
Speakerphones must be installed by qualified personnel. Faulty installation or operation can constitute a safety hazard.
IMPORTANT!
Cellular terminals or mobiles operate using radio signals an d cellular networks.
Because of this, connection cannot be guaranteed at all times under all conditions.
Therefore, you should never rely solely upon any wireless device for essential communications, for example emergency calls.
Remember, in order to make or receive calls, the cellular terminal or mobile must be
switched on and in a service area with adequate cellular signal strength.
Some networks do not allow for emergency calls if certain network services or phone
features are in use (e.g. lock functions, fixed dialing etc.). You may need to deactivate
those features before you can make an emergency call.
Some networks require that a valid SIM card be properly inserted in the cellu lar terminal or mobile.
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HC25 Hardware Interface Overview
2 Product Concept
15
2Product Concept
2.1Key Features at a Glance
FeatureImplementation
General
Frequency bandsUMTS/HSDPA: Triple band, 850//1900/2100MHz
GSM/GPRS/EDGE: Quad band, 850/900/1800/1900MHz
GSM classSmall MS
s
Output power
(according to
Release 99)
Power supply3.2V <
PhysicalDimensions: 50mm x 34mm x 4.5mm
RoHSAll hardware components fully compliant with EU RoHS Directive
HSDPA features
3GPP Release 53.6 Mb p s, UL 38 4 kb ps
Class 4 (+33dBm ±2dB) for EGSM850
Class 4 (+33dBm ±2dB) for EGSM900
Class 1 (+30dBm ±2dB) for GSM1800
Class 1 (+30dBm ±2dB) for GSM1900
Class E2 (+27dBm ± 3dB) for GSM 850 8-PSK
Class E2 (+27dBm ± 3dB) for GSM 900 8-PSK
Class E2 (+26dBm +3 /-4dB) for GSM 1800 8-PSK
Class E2 (+26dBm +3 /-4dB) for GSM 1900 8-PSK
Class 3 (+24dBm +1/-3dB) for UMTS 2100, WCDMA FDD BdI
Class 3 (+24dBm +1/-3dB) for UMTS 1900,WCDMA FDD BdII
Class 3 (+24dBm +1/-3dB) for UMTS 850, WCDMA FDD BdV
V
< 4.2V
BATT+
Weight: approx. 10g
UE CAT. [1-6], 11, 12 supported
Compressed mode (CM) supported according to 3GPP TS25.212
UMTS features
Release 99, June 2004, W-
CDMA FDD standard
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PS data rate – 384 kbps DL / 384 kbps UL
CS data rate – 64 kbps DL / 64 kbps UL
HC25 Hardware Interface Overview
2.1 Key Features at a Glance
15
FeatureImplementation
GSM / GPRS / EGPRS features
Data transferGPRS
•Multislot Class 10
•Full PBCCH support
•Mobile Station Class B
•Coding Scheme 1 – 4
EGPRS
•Multislot Class 10
•EDGE E2 power class for 8 PSK
•Downlink coding schemes – CS 1-4, MCS 1-9
•Uplink coding schemes – CS 1-4, MCS 1-9
•BEP reporting
•SRB loopback and test mode B
•8-bit, 11-bit RACH
•PBCCH support
•1 phase/2 phase access procedures
•Link adaptation and IR
•NACC, extended UL TBF
•Mobile Station Class B
CSD
•V.110, RLP, non-transparent
•9.6 kbps
s
SMSPoint-to-point MT and MO
Cell broadcast
Text and PDU mode
FaxGroup 3; Class 1
AudioAudio speech codecs
GSM: AMR, EFR, FR, HR
3GPP: AMR
One ringing melody supported
CEPT supervisory tones supported
DTMF supported
6 audio modes: Approval, Router, Handset, Headset, Speakerphone an d
Transparent mode
TTY support selecting a dedicated audio mode
Download of audio parameters
Gains and volumes can be controlled by AT commands
Several additional ringing melodies
CEPT and ANSI supervisory tones supported
Software
AT commandsAT-Hayes GSM 07.05 and 07.07, Siemens
AT commands for RIL compatibility (NDIS/RIL)
Microsoft
TM
compatibilityRIL / NDIS for Windows MobileTM
SIM Application ToolkitSAT Class C
Firmware updateFirmware update from host application over USB.
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2.1 Key Features at a Glance
15
FeatureImplementation
Interfaces
USBSupports a USB 2.0 Full Speed (12Mbit/s) device interface.
Wakeup ControlSignal pin to wake up an inactive USB Host into an active state.
StatusSignal pins to indicate network connectivity status.
Audio1 analog interface
UICC interfaceSupported chip cards: SIM / UICC 3V, 1.8V
Antenna50Ohms. External antenna can be connected via antenna connector or
antenna pad (spring contact).
Module interface50-pin board-to-board connector
Power on/off, Reset
Power on/offSwitch-on by hardware pin IGT
Switch-off by hardware pin IGT
Switch-off by AT command
s
ResetOrderly shutdown and reset by AT command
Emergency off by hardware pin EMERG_OFF and re start with hardware
pin IGT
Emergency offEmergency off by hardware pin EMERG_OFF
Evaluation kit
DSBDSB75 Evaluation Board designed to test and type approve Siemens cel-
lular engines and provide a sample configura tion for application engineer-
ing. A special adapter is required to connect the module to the DSB75.
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HC25 Hardware Interface Overview
3 Application Interface
16
s
3Application Interface
HC25 is equipped with a 50-pin board-to-board connector that connects to the external application and incorporates several sub-interfaces: power supply, USB interface, UICC/SIM interface, analog audio interface, as well as various status and control lines (see also Chapter 2).
3.1Operating Modes
The table below briefly summarizes the various operating modes referred to in the following
chapters.
Table 5: Overview of operating modes
ModeFunction
Normal
operation
GSM /
GPRS / UMTS /
HSDPA SLEEP
GSM IDLESoftware is active. Once registered to the GSM network, paging with
GSM TALK/
GSM DATA
GPRS IDLEModule is attached and ready for GPRS data transfer, but no data is
GPRS DATAGPRS data transfer in progress. Power consumption depends on net-
EGPRS DATAEGPRS data transfer in progress. Power consumption depends on net-
UMTS /
HSDPA IDLE
Power saving mode set automatically when no call is in progress and
the USB connection is suspended by host or not present.
BTS is carried out in order to achieve synchrony with the GSM network.
The repetition rate depends on the parameter BSPA_Multiframe. The
module is ready to send and receive.
Connection between two subscribers is in progress. Power consumption depends on the GSM network coverage and several connectio n
settings (e.g. DTX off/on, FR/EFR/HR, hopping sequences and
antenna connection). The following applies when power is to be measured in TALK_GSM mode: DTX off, FR and no frequency hopping,
otherwise same as for IDLE measurements.
currently sent or received.
work settings (e.g. power control level), uplink / downlink data rates and
GPRS configuration (e.g. used multislot settings).
work settings (e.g. power control level), uplink / downlink data rates and
EGPRS configuration (e.g. used multislot settings).
Module is attached and ready for UMTS / HSDPA data transfer, but no
data is currently sent or received.
UMTS TALK/
UMTS DATA
HSDPA DATAHSDPA data transfer in progress. Power consumption depends on net-
Power
Down
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The internal power section is shut down. The SW on the module is not active. The interfaces
are not accessible.
UMTS data transfer in progress. Power consumption depends on network settings (e.g. TPC Pattern) and data transfer rate.
work settings (e.g. TPC Pattern) and data transfer rate.
HC25 Hardware Interface Overview
4 Antenna Interface
22
s
4Antenna Interface
The RF interface has an impedance of 50Ω. HC25 is capable of sustaining a total mismatch at
the antenna connector or pad without any damage, even when transmitting at maximum RF
power.
The external antenna must be matched properly to achieve best performance regarding radiated power, DC-power consumption, modulation accuracy and harmonic suppression.
Antenna matching networks are not included on the HC25 PCB and should be placed in the
host application.
Regarding the return loss HC25 provides the following values in the active band:
Table 6: Return loss in the active band
State of moduleReturn loss of moduleRecommended return loss of application
Receive>
Transmit not applicable >
Idle<
The connection of the antenna or other equipment must be decoupled from DC voltage. This
is necessary because the antenna connector is DC coupled to groun d via an in ductor for ESD
protection.
Note: The antenna must be isolated for ESD protection (to withstand a voltage resistance up
to 8kV air discharge).
8dB> 12dB
12dB
5dBnot applicable
4.1Antenna Installation
To suit the physical design of individual applications HC25 offers two alternative approaches
to connecting the antenna:
•Recommended approach: U.FL-R-SMT antenna connector from Hirose assembled on the
top side of the PCB. See Section 4.3 for connector details.
•Antenna pad and grounding plane placed on the bottom side. See Section 4.2.
The U.FL-R-SMT connector has been chosen as antenna reference point (ARP) for the Siemens reference equipment submitted to type approve HC25. All RF data specified throughout
this manual are related to the ARP.
IMPORTANT: Both solutions can only be applied alternatively. This means, whenever an
antenna is plugged to the Hirose connector, the pad must not be used. Vice versa, if the
antenna is connected to the pad, then the Hirose connector must be left empty.
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4.2 Antenna Pad
22
No matter which option you choose, ensure that the antenna pad does not come into contact
with the holding device or any other components of the host application. It needs to be surrounded by a restricted area filled with air, which must also be reserved 1.4mm in height.
Figure 1: Restricted area around antenna pad (side and bottom view)
s
4.2Antenna Pad
The antenna can be attached via contact springs.
If you decide to use the antenna pad take into account that the pad has not been intended as
antenna reference point (ARP) for the Siemens HC25 type approval. The antenna pad is provided only as an alternative option which can be used, for example, if the recommended Hirose
connection does not fit into your antenna design.
Also, consider that according to the GSM recommendations TS 45.005 and TS 51.010-01 a
50Ω connector is mandatory for type approval measurements. This requires GSM devices with
an integral antenna to be temporarily equipped with a suitable connector or a low loss RF cable
with adapter.
HC25 material properties:
HC25 PCB: FR4
Antenna pad: Gold plated pad
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HC25 Hardware Interface Overview
4.3 Antenna Connector
22
s
4.3Antenna Connector
HC25 uses an ultra-miniature SMT antenna connector supplied from Hirose Ltd. The product
name is:
•U.FL-R-SMT
Figure 2: Mechanical dimensions of U.FL-R-SMT connector
Table 7: Product specifications of U.FL-R-SMT connector
ItemSpecificationConditions
Ratings
Nominal impedance50ΩOperating temp:-40°C to + 90°C
holding force
Repetitive operationContact resistance:
VibrationNo momentary disconnectio ns of 1µs;
ShockNo momentary disconnections of 1µs.
0.15N minMeasured with a Ø 0.475 pin gauge
30 cycles of insertion and disengage-
Center 25mΩ
Outside 15mΩ
No damage, cracks and looseness of
parts
No damage, cracks and looseness of
parts.
ment
Frequency of 10 to 100Hz, single
amplitude of 1.5mm, acceleration of
2
59m/s
each of the 3 axes
Acceleration of 735m/s
for 6 cycles in the direction of each of
the 3 axes
, for 5 cycles in the direction of
2
, 11ms duration
Environmental characteristics
Humidity resistanceNo damage, cracks a nd looseness of
parts.
Insulation resistance:
100MΩ min. at high humidity
500MΩ min. when dry
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Exposure to 40°C, humidity of 95% for
a total of 96 hours
HC25 Hardware Interface Overview
4.3 Antenna Connector
22
Table 7: Product specifications of U.FL-R-SMT connector
ItemSpecificationConditions
s
Temperature cycleNo damage, cracks and looseness of
parts.
Contact resistance:
Center 25mΩ
Outside 15mΩ
Salt spray testNo excessive corrosion48 hours continuous exposure to 5%
Table 8: Material and finish of U.FL-R-SMT connector and recommended plugs
PartMaterialFinish
ShellPhosphor bronzeSilver plating
Male center contact BrassGold plating
Female center con-
tact
InsulatorPlug: PBT
Phosphor bronzeGold plating
Receptacle: LCP
Temperature: +40°C → 5 to 35°C →
+90°C → 5 to 35°C
Time: 30min → within 5min → 30min
within 5min
salt water
Black
Beige
Mating plugs and cables can be chosen from the Hirose U.FL Series. Examples are shown
below and listed in Table 9. For latest product information please contact your Hirose dealer or
visit the Hirose home page, for example http://www.hirose.com.
Figure 3: U.FL-R-SMT connector with U.FL-LP-040 plug
Figure 4: U.FL-R-SMT connector with U.FL-LP-066 plug
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4.3 Antenna Connector
22
In addition to the connectors illustrated above, the U.FL-LP-(V)-040(01) version is offered as
an extremely space saving solution. This plug is intended for use with extra fine cable (up to
Ø 0.81mm) and minimizes the mating height to 2mm. See Figure 5 which shows the Hirose
datasheet.
s
Figure 5: Specifications of U.FL-LP-(V)-040(01) plug
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HC25 Hardware Interface Overview
4.3 Antenna Connector
22
Table 9: Ordering information for Hirose U.FL Series
ItemPart number HRS number
Connector on HC25U.FL-R-SMT CL331-0471-0-10
s
Right-angle plug shell for
Ø 0.81mm cable
Right-angle plug for
Ø 0.81mm cable
Right-angle plug for
Ø 1.13mm cable
Right-angle plug for
Ø 1.32mm cable
Extraction jigE.FL-LP-NCL331-04441-9
U.FL-LP-040CL331-0451-2
U.FL-LP(V)-040 (01)CL331-053-8-01
U.FL-LP-068CL331-0452-5
U.FL-LP-066CL331-0452-5
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5 Electrical, Reliability and Radio Characteristics
26
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5Electrical, Reliability and Radio Characteristics
5.1Absolute Maximum Ratings
The absolute maximum ratings stated in Table 10 are stress ratings under any conditions.
Stresses beyond any of these limits will cause permanent damage to HC25.
Table 10: Absolute maximum ratings
ParameterMinMaxUnit
Supply voltage BATT+-0.34.5V
Voltage at digital pins in POWER DOWN mode-0.30.3 V
Voltage at digital pins in normal operation -0.32.8V
Voltage at analog pins in POWER DOWN mode-0.30.3V
Voltage at analog pins in normal operation-0.32.5V
Voltage at STATSUSx pins-0.57.5V
VUSB-0.37.5V
USB_DP, USB_DN-0.37.5V
PWR_IND-0.310V
VDDLP-0.33.25V
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5.2 Operating Temperatures
s
26
5.2Operating Temperatures
The values stated below are in compliance with GSM recommendation TS 51.010-01.
Table 11: Board temperature
ParameterMinTypMaxUnit
Operating temperature range-20+25+85°C
Automatic shutdown
Temperature measured on HC25 board
1.
Due to temperature measurement uncertainty, a tolerance on the stated shutdown thresholds may occur.
The possible deviation is in the range of ± 3°C at the overtemperature limit and ± 5°C at the undertemperature limit.
Table 11 shows the temperatures for automatic shutdown as measured by the on-board mea-
suring element NTC. The maximum allowable ambient temperature that causes the module to
shut down depends on various conditions. The following tables Table 12 and Table 13 show
sample lab environment conditions. Please be aware that the operating duration an d the maximum ambient temperature will vary significantly for your application.
1
< -30--->+85°C
Table 12: Sample operating conditions without forced air circulation (according to IEC 60068-2)
ModeAmbient
VoltageRF PowerOperating
Temperature
GSM,
+65°CV
< 3.8VMax.∞
BATT+
GPRS/EDGE Class 8
WCDMA+55°CV
WCDMA+65°CV
GRPS/EDGE Class10+65°CV
WCDMA+65°CV
Table 13: Sample operating conditions with forced air circulation (air speed 0.9m/s)
ModeAmbient
< 3.4V< 10dBm∞
BATT+
< 3.4V< 0dBm∞
BATT+
< 3.8VMax.< 2min
BATT+
< 3.8VMax.< 2min
BATT+
VoltageRF PowerOperating
Temperature
GSM,
+75°CV
< 3.8VMax.∞
BATT+
GPRS/EDGE Class 8
WCDMA+60°CV
WCDMA+70°CV
GRPS/EDGE Class 10+65°CV
WCDMA+60°CV
< 3.4V< 10dBm∞
BATT+
< 3.4V< 0dBm∞
BATT+
< 3.8VMax.∞
BATT+
< 3.4VMax.∞
BATT+
Duration
Duration
Note: Generally it is strongly recommended to implement additional measures to lead the heat
out of the application, especially at maximum transmission power levels of WCDMA (24dBm),
e.g. use of ground area for a heat sink or convection (see Section 6.1 for the ground area that
may be used for a heat sink).
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5.3 Storage Conditions
26
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5.3Storage Conditions
The conditions stated below are only valid for modules in their original packed state in weather
protected, non-temperature-controlled storage locations. Normal storage time under these
conditions is 12 months maximum.
Table 14: Storage conditions
TypeConditionUnitReference
Air temperature: Low
High
Humidity relative: Low
High
Condens.
Air pressure: Low
High
Movement of surrounding air1.0m/sIEC TR 60271-3-1: 1K4
Water: rain, dripping, icing and
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5.4 Reliability Characteristics
26
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5.4Reliability Characteristics
The test conditions stated below are an extract of the complete test specifications.
Table 15: Summary of reliability test conditions
Type of testConditionsStandard
Vibration Frequency range: 10-20Hz; acceleration: 3.1mm
amplitude
Frequency range: 20-500Hz; acceleration: 5g
Duration: 2h per axis = 10 cycles; 3 axes
Shock half-sinusAcceleration: 500g
Shock duration: 1msec
1 shock per axis
6 positions (± x, y and z)
Dry heatTemperature: +70 ±2×C
Test duration: 16h
Humidity in the test chamber: < 50%
Temperature
change (shock)
Damp heat cyclicHigh temperature: +55×C ±2×C
Cold (constant
exposure)
Low temperature: -40×C ±2×C
High temperature: +85×C ±2×C
Changeover time: < 30s (dual chamber system)
Test duration: 1h
Number of repetitions: 100
Low temperature: +25×C ±2×C
Humidity: 93% ±3%
Number of repetitions: 6
Test duration: 12h + 12h
Temperature: -40 ±2×C
Test duration: 16h
DIN IEC 68-2-6
DIN IEC 68-2-27
EN 60068-2-2 Bb
ETS 300 019-2-7
DIN IEC 68-2-14 Na
ETS 300 019-2-7
DIN IEC 68-2-30 Db
ETS 300 019-2-5
DIN IEC 68-2-1
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6 Mechanics
30
6Mechanics
6.1Mechanical Dimensions of HC25
Length:50.00mm
Width: 34.00mm
Height:4.5mm
RF Antenna
Connector
s
Ground
Ground
Pin 1
Pin 25
Pin 50
Pin 26
Ground
(for Heat Sink)
Figure 6: HC25 – Top and bottom view
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6.1 Mechanical Dimensions of HC25
30
s
Figure 7: Dimensions of HC25 (all dimensions in mm)
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6.2 Mounting HC25 to the Application Platform
30
s
6.2Mounting HC25 to the Application Platform
There are many ways to properly install HC25 in the host device. An efficient approach is to
mount the HC25 PCB to a frame, plate, rack or chassis.
Fasteners can be M2 screws plus suitable washers, circuit board spacers, or customized
screws, clamps, or brackets. In addition, the board-to-board connection can also be utilized t o
achieve better support. To help you find appropriate spacers a list of selected screws and distance sleeves for 3mm stacking height can be found in Section 8.2.
When using the holes the screws can be inserted from top or bottom.
For proper grounding it is strongly recommended to use the large ground plane on the bottom
of board in addition to the five GND pins of the board-to-board connector. The ground plane
may also be used to attach cooling elements, e.g. a heat sink or thermally conductive tape.
Please take care that attached cooling elements do not touch the antenna pads on the module’s bottom side, as this may lead a short-circuit.
To prevent mechanical damage, be careful not to force, bend or twist the module. Be sure it is
positioned flat against the host device (see also Section 8.3 with mounting advice sheet).
6.3Board-to-Board Application Connector
This section provides specifications for the 50-pin board-to-board (B2B) connector used to connect HC25 to the host application.
For the module’s external interface the following connector series has been chosen:
Supplier:Hirose ( www.hirose.com
Type:DF12C (3.0)-50DS-0.5V (SlimStack Receptacle)
Height:3.0 mm
Table 16: Electrical and mechanical characteristics of the board-to-board connector
ParameterSpecification (50-way connector)
Number of Contacts50
Quantity delivered2000 Connectors per Tape & Reel
Voltage50V
Current Rating0.4A max per contact
Resistance0.05 Ohm per contact
)
Dielectric Withstanding Voltage150V RMS AC for 1min
Operating Temperature-40°C...+85°C
Contact Materialphosphor bronze finish: solder plating
Insulator MaterialPPS, deep brown / Polyamide, beige
FFC/FPC Thickness0.3mm ±0.05mm (0.012" ±0.002")
Maximum connection cycles20 (@ 50mOhm max)
CableFFC (Flat Flexible Cable), max. length 150mm from SIM
interface
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6.3 Board-to-Board Application Connector
30
A recommended corresponding board-to-board connector series for external applications is:
Supplier:Hirose ( www.hirose.com
Type:DF12x-50DP-0.5V (SlimStack Header)
Height:3.0 – 5.0 mm
For Hirose sales contacts see Chapter 8.
Note: There is no inverse polarity protection for the board-to-board connector. It is therefore
very important that the board-to-board connector is connected correctly to the host application,
i.e., pin1 must be connected to pin1, pin2 to pin 2, etc. Pin assignments are listed in Section
5.5, pin locations are shown in Figure 6.
)
s
Figure 8: Mechanical dimensions of the board-to-board connector
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7 Reference Approval
32
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7Reference Approval
7.1Reference Equipment for Type Approval
The Siemens reference setup submitted to type approve HC25 consists of the following components:
•Siemens HC25 cellular engine
•Development Support Box DSB75 and HC15/HC25-DSB75-Adapter for mounting the
HC25 module
•SIM card reader integrated on DSB75
•U.FL-LP antenna cable
•Handset type Votronic HH-SI-30.3/V1.1/0
•PC as MMI
Figure 9: Reference equipment for Type Approval
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7.2 Compliance with FCC Rules and Regulations
32
s
7.2Compliance with FCC Rules and Regulations
The Equipment Authorization Certification for the Siemens reference application described in
Section 7.1 will be registered under the following identifiers:
FCC Identifier: QIPHC25
Industry Canada Certification Number: 267W-HC25
Granted to Siemens AG
Manufacturers of mobile or fixed devices incorporating HC25 modules are authorized to use
the FCC Grants and Industry Canada Certificates of the HC25 modules for their own final products according to the conditions referenced in these documents. In this case, the FCC label of
the module shall be visible from the outside, or the host device shall bear a second label stating
"Contains FCC ID QIPHC25".
IMPORTANT:
Manufacturers of portable applications incorporating HC25 modules are required to have their
final product certified and apply for their own FCC Grant and Industry Canada Certificate
related to the specific portable mobile. This is mandatory to meet the SAR requirements for portable mobiles (see Section 1.4 for detail).
Changes or modifications not expressly approved by the party responsible for compliance
could void the user's authority to operate the equipment.
Note: This equipment has been tested and found to comply with the limits for a Class B digital
device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable
protection against harmful interference in a residential installation. This equipment generates,
uses and can radiate radio frequency energy and, if not installed and used in accordance with
the instructions, may cause harmful interference to radio communications. However, there is
no guarantee that interference will not occur in a particular installation. If this equipment does
cause harmful interference to radio or television reception, which can be determined by turning
the equipment off and on, the user is encouraged to try to correct the interference by one or
more of the following measures:
•Reorient or relocate the receiving antenna.
•Increase the separation between the equipment and receiver.
•Connect the equipment into an outlet on a circuit different from that to wh ich the rece iver is
connected.
•Consult the dealer or an experienced radio/TV technician for help.
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Hirose Electric UK, Ltd
Crownhill Business Centre
22 Vincent Avenue, Crownhill
Milton Keynes, MK8 OAB
Great Britain
Phone: +44-1908-305400
Fax: +44-1908-305401
Hirose Electric Co., Ltd.
5-23, Osaki 5 Chome,
Shinagawa-Ku
Tokyo 141
Japan
Phone: +81-03-3491-9741
Fax: +81-03-3493-2933
Hirose Electric Co., Ltd.
European Branch
First class Building 4F
Beechavenue 46
1119PV Schiphol-Rijk
Netherlands
Phone: +31-20-6557-460
Fax: +31-20-6557-469
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8.2 Fasteners and Fixings for Electronic Equipment
39
s
8.2Fasteners and Fixings for Electronic Equipment
This section provides a list of suppliers and manufacturers offering fasteners and fixings for
electronic equipment and PCB mounting. The content of this section is designed to offer basic
guidance to various mounting solutions with no warranty on the accuracy and sufficiency of the
information supplied. Please note that the list remains preliminary although it is going to be
updated in later versions of this document.
The following tables contain only article numbers and basic parameters of the listed components. For further detail and ordering information please contact Ettinger GmbH.
Please note that some of the listed screws, spacers and nuts are delivered with the DSB75
Support Board. See comments below.
Article number: 05.71.038Spa ce r - Alum in um /
Wall thickness = 0.8mm
Length3.0mm
MaterialAlMgSi-0,5
For internal diameterM2=2.0-2.3
Internal diameterd = 2.4mm
External diameter4.0mm
Vogt AG No.x40030080.10
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8.2 Fasteners and Fixings for Electronic Equipment
To prevent mechanical damage, be careful not to force, bend or twist the module. Be sure it is
positioned flat against the host device. The advice sheet on the next page shows a number of
examples for the kind of bending that may lead to mechanical damage of the module.
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8.3 Mounting Advice Sheet
39
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HC25_HO_v00.220Page 39 of 392007-03-20
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