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TC65 Hardware Interface Description

Strictly confidential / Draft

TC65_HD_V00.450 Page 49 of 96 20.04.2005

3.11.1 Installing the USB Modem Driver

This section assumes you are familiar with installing and configuring a modem under

Windows 2000 and Windows XP. As both operating systems use multiple methods to access

modem settings this section provides only a brief summary of the most important steps.

Take care that the “usbmodem.inf” file delivered with TC65 is at hand. Connect the USB

cable to the TC65 host application (for example the evaluation board DSB75) and the PC.

Windows detects TC65 as a new USB modem, opens the

Found New Hardware Wizard and

reports that it is searching for the “Siemens AG WM USB Modem” driver. Follow the

instructions on the screen and specify the path where the “usbmodem.inf” file is located.

Windows will copy the required software to your computer and configure the modem by

assigning a free COM port. If you are already using more than one COM port then the next

free one will be allocated. Click

Finish to complete the installation.

Notes for Windows 2000 only:

• During the installation procedure you will be prompted for the “usbser.sys” driver. Make

sure the file is present before you start installing the above inf file.

The “usbser.sys” file is not delivered as a single file, but must be extracted from a

Windows 2000 cabinet file. This is either the file “driver.cab” located in the “I386” folder of

the original Windows 2000 CD or a later cabinet file inside the Service Pack. SP4 for

example includes the “sp4.cab” file which can be found in its “I386” folder. The

“usbser.sys” driver from the Service Pack has priority over one provided with the

standard Windows 2000 install CD.

• It is necessary to restart Windows 2000 to make the changes take effect.

Summary of content (48 pages)

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TC65 Hardware Interface Description Strictly confidential / Draft 3.11.1 s Installing the USB Modem Driver This section assumes you are familiar with installing and configuring a modem under Windows 2000 and Windows XP. As both operating systems use multiple methods to access modem settings this section provides only a brief summary of the most important steps. Take care that the “usbmodem.inf” file delivered with TC65 is at hand.
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TC65 Hardware Interface Description Strictly confidential / Draft s You can find the “Siemens AG WM USB Modem” listed under Control Panel | Phone and Modem Options | Modems.
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s TC65 Hardware Interface Description Strictly confidential / Draft 3.12 I2C Interface I2C is a serial, 8-bit oriented data transfer bus for bit rates up to 400kbps in Fast mode. It consists of two lines, the serial data line I2CDAT and the serial clock line I2CCLK. The TC65 module acts as a single master device, e.g. the clock I2CCLK is driven by module. I2CDAT is a bi-directional line.
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s TC65 Hardware Interface Description Strictly confidential / Draft Application GSM module VEXT Rp I2CDAT I2CCLK GND Rp I2CDAT I2CCLK GND Figure 16: I2C interface connected to VEXT line of TC65 Note: Good care should be taken when creating the PCB layout of the host application: The traces of I2CCLK and I2CDAT should be equal in length and as short as possible. TC65_HD_V00.450 Page 52 of 96 20.04.
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s TC65 Hardware Interface Description Strictly confidential / Draft 3.13 Audio Interfaces TC65 comprises three audio interfaces available on the board-to-board connector: • Two analog audio interfaces, both with balanced or single-ended inputs/outputs. • Serial digital audio interface (DAI) designed for PCM (Pulse Code Modulation). This means you can connect up to three different audio devices, although only one interface can be operated at a time.
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s TC65 Hardware Interface Description Strictly confidential / Draft 3.13.1 Speech Processing The speech samples from the ADC or DAI are handled by the DSP of the baseband controller to calculate e.g. amplifications, sidetone, echo cancellation or noise suppression depending on the configuration of the active audio mode. These processed samples are passed to the speech encoder.
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TC65 Hardware Interface Description Strictly confidential / Draft s The VMIC voltage should be filtered if gains larger than 20dB are used. The filter can be attached as a simple first order RC-network (RVMIC and CF). This circuit is well suited if the distance between microphone and module is kept short. Due to good grounding the microphone can be easily ESD protected as its housing usually connects to the negative terminal. 3.13.2.
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TC65 Hardware Interface Description Strictly confidential / Draft 3.13.2.3 s Line Input Configuration with OpAmp Figure 20 shows an example of how to connect an opamp into the microphone circuit. RA = typ. 47k RVMIC = 470Ohm VMIC RA CK RVMIC Ck = typ. 100nF CF = typ. 22µF MICPx ~ VMIC = typ. 2.5V RA CK GSM module MICNx CF Vbias = typ. ½ VMIC = 1.25V VBias AGND Figure 20: Line input configuration with OpAmp The AC source (e.g.
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s TC65 Hardware Interface Description Strictly confidential / Draft 3.13.3 Loudspeaker Circuit The GSM module comprises two analog speaker outputs: EP1 and EP2. Output EP1 is able to drive a load of 8Ohms while the output EP2 can drive a load of 32Ohms. Each interface can be connected in differential and in single ended configuration. See examples in Figure 21 and Figure 22. Loudspeaker impedance EPP1/EPN1 ZL = typ. 8Ohm EPP2/EPN2 ZL = typ.
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TC65 Hardware Interface Description Strictly confidential / Draft 3.13.4 s Digital Audio Interface DAI TBD TC65_HD_V00.450 Page 58 of 96 20.04.
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TC65 Hardware Interface Description Strictly confidential / Draft 3.14 Control Signals 3.14.1 Synchronization Signal s The synchronization signal serves to indicate growing power consumption during the transmit burst. The signal is generated by the SYNC pin (pin number 32).
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TC65 Hardware Interface Description Strictly confidential / Draft 3.14.2 s Using the SYNC Pin to Control a Status LED As an alternative to generating the synchronization signal, the SYNC pin can be configured to drive a status LED that indicates different operating modes of the TC65 module. To take advantage of this function the LED mode must be activated with the AT^SSYNC command and the LED must be connected to the host application.
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s TC65 Hardware Interface Description Strictly confidential / Draft 4 Antenna Interface The RF interface has an impedance of 50Ω. TC65 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.
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s TC65 Hardware Interface Description Strictly confidential / Draft Antenna connected to Hirose connector: Module PAD U.FL Antenna connected to pad: Antenna or measurement equipment Module PAD 50Ohm 50Ohm 50Ohm U.FL Z Z Antenna 50Ohm Figure 27: Never use antenna connector and antenna pad at the same time 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.
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TC65 Hardware Interface Description Strictly confidential / Draft 4.2 s Antenna Pad The antenna can be soldered to the pad, or attached via contact springs. For proper grounding connect the antenna to the ground plane on the bottom of TC65 which must be connected to the ground plane of the application. When 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 TC65 type approval.
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s TC65 Hardware Interface Description Strictly confidential / Draft 4.3 Antenna Connector TC65 uses an ultra-miniature SMT antenna connector supplied from Hirose Ltd. The product name is: U.FL-R-SMT The position of the antenna connector on the TC65 board can be seen in Figure 35. Figure 29: Mechanical dimensions of U.FL-R-SMT connector Table 12: Product specifications of U.
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s TC65 Hardware Interface Description Strictly confidential / Draft Table 13: Material and finish of U.FL-R-SMT connector and recommended plugs Part Material Finish Shell Phosphor bronze Silver plating Male center contact Brass Gold plating Female center contact Phosphor bronze Gold plating Insulator Plug: Receptacle: PBT LCP Black Beige Mating plugs and cables can be chosen from the Hirose U.FL Series. Examples are shown below and listed in Table 14.
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TC65 Hardware Interface Description Strictly confidential / Draft s 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 ∅ 0.81mm) and minimizes the mating height to 2mm. See Figure 32 which shows the Hirose datasheet. Figure 32: Specifications of U.FL-LP-(V)-040(01) plug TC65_HD_V00.450 Page 66 of 96 20.04.
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s TC65 Hardware Interface Description Strictly confidential / Draft Table 14: Ordering information for Hirose U.FL Series Item Part number HRS number Connector on TC65 U.FL-R-SMT CL331-0471-0-10 Right-angle plug shell for ∅ 0.81mm cable U.FL-LP-040 CL331-0451-2 Right-angle plug for ∅ 0.81mm cable U.FL-LP(V)-040 (01) CL331-053-8-01 Right-angle plug for ∅ 1.13mm cable U.FL-LP-068 CL331-0452-5 Right-angle plug for ∅ 1.32mm cable U.FL-LP-066 CL331-0452-5 Extraction jig E.
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s TC65 Hardware Interface Description Strictly confidential / Draft 5 Electrical, Reliability and Radio Characteristics 5.1 Absolute Maximum Ratings The absolute maximum ratings stated in Table 15 are stress ratings under non-operating conditions. Stresses beyond any of these limits will cause permanent damage to TC65. Table 15: Absolute maximum ratings under non-operating conditions Parameter Min Max Unit Supply voltage BATT+ -0.3 5.5 V Voltage at digital pins -0.3 3.
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s TC65 Hardware Interface Description Strictly confidential / Draft 5.3 Pin Assignment and Signal Description The Molex board-to-board connector on TC65 is an 80-pin double-row receptacle. The names and the positions of the pins can be seen from Figure 1 which shows the top view of TC65.
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TC65 Hardware Interface Description Strictly confidential / Draft s Please note that the reference voltages listed in Table 17 are the values measured directly on the TC65 module. They do not apply to the accessories connected. Table 17: Signal description Function Signal name Power supply BATT+ IO I Signal form and level Comment VImax = 4.5V VItyp = 3.8V VImin = 3.
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s TC65 Hardware Interface Description Strictly confidential / Draft Function Signal name IO Signal form and level Comment Power indicator PWR_IND O VIHmax = 10V VOLmax = 0.4V at Imax = 2mA PWR_IND (Power Indicator) notifies the module’s on/off state. PWR_IND is an open collector that needs to be connected to an external pullup resistor. Low state of the open collector indicates that the module is on. Vice versa, high level notifies the Powerdown mode.
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TC65 Hardware Interface Description Strictly confidential / Draft Function Signal name SIM interface CCIN specified for use with 3V SIM card IO I Signal form and level Comment RI ≈ 100kΩ VILmax = 0.6V at I = -25µA VIHmin = 2.1V at I = -10µA VOmax = 3.05V CCIN = Low, SIM card holder closed RO ≈ 47Ω VOLmax = 0.25V at I = +1mA VOHmin = 2.5V at I = -0.5mA VOHmax = 2.95V Maximum cable length or copper track 100mm to SIM card holder. CCRST O CCIO I/O RI ≈ 4.7kΩ VILmax = 0.75V VILmin = -0.
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TC65 Hardware Interface Description Strictly confidential / Draft s Function Signal name IO Signal form and level Comment ASC1 Serial interface RXD1 TXD1 CTS1 RTS1 O I O I VOLmax = 0.2V at I = 2mA VOHmin = 2.55V at I = -0.5mA VOHmax = 3.05V Serial interface for AT commands or data stream. I2CCLK _SPICLK O VOLmax = 0.2V at I = 2mA VOHmin = 2.55V at I = -0.5mA VOHmax = 3.05V I2CDAT_SPIDO I/O VOLmax = 0.2V at I = 2mA VILmax = 0.8V VIHmin = 2.0V I2C interface VILmax = 0.8V VIHmin = 2.
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TC65 Hardware Interface Description Strictly confidential / Draft Function Signal name Analog Digital Converter ADC_IN1 I ADC_IN2 I Digital Analog Converter DAC_OUT O Digital Audio interface DAI0 O Analog Audio interface IO s Signal form and level Comment Input voltage: VImin = 0V, VImax = 2.4V Ri ≈ 450kOhm fCmax < 3kHz Sensitivity, accuracy: 12 Bit 1 Bit = 0.585mV VOLmax = 0.2V at I = 2mA VOHmin = 2.55V at I = -0.5mA VOHmax = 3.05V Inputs used for measuring external voltages.
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s TC65 Hardware Interface Description Strictly confidential / Draft 5.4 Power Supply Ratings Table 18: Power supply ratings Parameter Description Conditions Min BATT+ Directly measured at reference point TP BATT+ and TP GND, see chapter 3.2.2 3.2 Supply voltage Typ 3.8 Max Unit 4.5 V 400 mV @ f<200kHz 50 mV @ f>200kHz 2 mV Voltage must stay within the min/max values, including voltage drop, ripple, spikes.
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s TC65 Hardware Interface Description Strictly confidential / Draft Table 19: Current consumption during transmit burst Mode Timeslot configuration GSM call GPRS Class 8 GPRS Class10 GPRS Class 12 1Tx / 1Rx 1Tx / 4Rx 2Tx / 3Rx 4Tx / 1Rx *) Frequency 850/900MHz Maximum possible power (RF power nominal) 2W (33dBm) 2W (33dBm) 2W (33dBm) 1W (30dBm) 1W (30dBm) 0.5W (27dBm) Radio/output power reduction with command AT^SCFG, parameter = 1 .. 3 = 1 ..
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s TC65 Hardware Interface Description Strictly confidential / Draft 5.5 Electrostatic Discharge The GSM engine is not protected against Electrostatic Discharge (ESD) in general. Consequently, it is subject to ESD handling precautions that typically apply to ESD sensitive components. Proper ESD handling and packaging procedures must be applied throughout the processing, handling and operation of any application that incorporates a TC65 module.
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TC65 Hardware Interface Description Strictly confidential / Draft 5.6 s Reliability Characteristics The test conditions stated below are an extract of the complete test specifications. Table 21: Summary of reliability test conditions Type of test Conditions Standard Vibration Frequency range: 10-20Hz; acceleration: 3.
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s TC65 Hardware Interface Description Strictly confidential / Draft 6 Mechanics 6.1 Mechanical Dimensions of TC65 Figure 34 shows the top view of TC65 and provides an overview of the board's mechanical dimensions. For further details see Figure 35. Pin 1 Pin 80 Figure 34: TC65 – top view TC65_HD_V00.450 Page 79 of 96 20.04.
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s TC65 Hardware Interface Description Strictly confidential / Draft All dimensions in mm Figure 35: Dimensions of TC65 TC65_HD_V00.450 Page 80 of 96 20.04.
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TC65 Hardware Interface Description Strictly confidential / Draft 6.2 s Mounting TC65 to the Application Platform There are many ways to properly install TC65 in the host device. An efficient approach is to mount the TC65 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 to achieve better support.
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TC65 Hardware Interface Description Strictly confidential / Draft 6.3 s Board-to-Board Application Connector This section provides the specifications of the 80-pin board-to-board connector used to connect TC65 to the external application. Connector mounted on the TC65 module: Type: 52991-0808 SlimStack Receptacle 80 pins, 0.50mm pitch, for stacking heights from 3.0 to 4.0mm, see Figure 36 for details. Supplier: Molex www.molex.
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TC65 Hardware Interface Description Strictly confidential / Draft s Figure 36: Molex board-to-board connector 52991-0808 on TC65 TC65_HD_V00.450 Page 83 of 96 20.04.
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TC65 Hardware Interface Description Strictly confidential / Draft s Figure 37: Mating board-to-board connector 53748-0808 on application TC65_HD_V00.450 Page 84 of 96 20.04.
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TC65 Hardware Interface Description Strictly confidential / Draft 7 s Sample Application Figure 38 shows a typical example of how to integrate a TC65 module into the GSM part of a mobile application. Usage of the various host interfaces depends on the desired features of the application. Audio interface 1 demonstrates the balanced connection of microphone and earpiece. This solution is particularly well suited for internal transducers.
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s TC65 Hardware Interface Description Strictly confidential / Draft TC65 Application (Draft) *) VCHARGE BATT+ IGT ESD protection Rechargeable Lithium battery 0.3R SI3441DV BC847 CRS04 Vch ar ge 5.2V + 0.2V Charger 47k 2.7k NTC EMERG_RST VCC µC BATTEMP VSENSE BC847 47k 100k ISENSE PWR_IND Serial Interface ASC0 CHARGEGATE 8 7 Digital Audio VMIC (2.5V) 470R 4 Serial Interface ASC1 TC65 *) I2C 2 22µF 1k MICP1 100nF MICN1 2 x RP 1k VEXT (2.9V) 2.2k 2.
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s TC65 Hardware Interface Description Strictly confidential / Draft 8 Reference Approval 8.1 Reference Equipment for Type Approval The Siemens reference setup submitted to type approve TC65 consists of the following components: • Siemens TC65 cellular engine • Development Support Box DSB75 • SIM card reader integrated on DSB75 • U.FL-R-SMT antenna connector and U.FL-LP antenna cable • Handset type Votronic HH-SI-30.3/V1.
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TC65 Hardware Interface Description Strictly confidential / Draft 8.2 s Compliance with FCC Rules and Regulations The FCC Equipment Authorization Certification for the TC65 reference application described in Section 8.1 is listed under the FCC identifier QIPTC65 IC: 267W-TC65 granted to Siemens AG. The TC65 reference application registered under the above identifier is certified to be in accordance with the following Rules and Regulations of the Federal Communications Commission (FCC).
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s TC65 Hardware Interface Description Strictly confidential / Draft 9 Appendix 9.1 List of Parts and Accessories Table 23: List of parts and accessories Description Supplier Ordering information TC65 Siemens Siemens ordering number: L36880-N8355-A100 Siemens Car Kit Portable Siemens Siemens ordering number: L36880-N3015-A117 DSB75 Support Box Siemens Siemens ordering number: L36880-N8811-A100 Votronic Handset VOTRONIC Votronic HH-SI-30.3/V1.
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TC65 Hardware Interface Description Strictly confidential / Draft s Table 24: Molex sales contacts (subject to change) Molex For further information please click: http://www.molex.com/ Molex Deutschland GmbH Felix-Wankel-Str. 11 4078 Heilbronn-Biberach Germany Phone: +49-7066-9555 0 Fax: +49-7066-9555 29 Email: mxgermany@molex.com American Headquarters Lisle, Illinois 60532 U.S.A. Phone: +1-800-78MOLEX Fax: +1-630-969-1352 Molex China Distributors Beijing, Room 1319, Tower B, COFCO Plaza No.
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TC65 Hardware Interface Description Strictly confidential / Draft 9.2 s Fasteners 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.
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s TC65 Hardware Interface Description Strictly confidential / Draft Article number: 07.51.403 Insulating Spacer for M2 Self-gripping *) Length 3.0mm Material Polyamide 6.6 Surface Black Internal diameter 2.2mm External diameter 4.0mm Flammability rating UL94-HB *) 2 spacers are delivered with DSB75 Support Board Article number: 05.11.209 Threaded Stud M2.5 - M2 Type E / External thread at both ends Length 3.0mm Material Stainless steel X12CrMoS17 Thread 1 / Length M2.5 / 6.
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s TC65 Hardware Interface Description Strictly confidential / Draft Article number: 01.14.131 Screw M2 *) DIN 84 - ISO 1207 Length 8.0mm Material Steel 4.8 Surface Zinced A2K Thread M2 Head diameter D = 3.8mm Head height 1.30mm Type Slotted cheese head screw *) 2 screws are delivered with DSB75 Support Board Article number: 01.14.141 Screw M2 DIN 84 - ISO 1207 Length 10.0mm Material Steel 4.8 Surface Zinced A2K Thread M2 Head diameter D = 3.8mm Head height 1.
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s TC65 Hardware Interface Description Strictly confidential / Draft Article number: 02.10.011 Hexagon Nut *) DIN 934 - ISO 4032 Material Steel 4.8 Surface Zinced A2K Thread M2 Wrench size / Ø 4 Thickness / L 1.6mm Type Nut DIN/UNC, DIN934 *) 9.3 2 nuts are delivered with DSB75 Support Board Data Sheets of Recommended Batteries The following two data sheets have been provided by VARTA Microbattery GmbH. Click here for sales contacts and further information: http://www.varta-microbattery.
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s TC65 Hardware Interface Description Strictly confidential / Draft Figure 40: Lithium Ion battery from VARTA TC65_HD_V00.450 Page 95 of 96 20.04.
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s TC65 Hardware Interface Description Strictly confidential / Draft Figure 41: Lithium Polymer battery from VARTA TC65_HD_V00.450 Page 96 of 96 20.04.