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WM_PRJ_Q2400_PTS_005 -007

18th January 2006

Confidential©

All rights reserved

Page:

33

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51

This document is the sole and exclusive property of WAVECOM. Not to be

distributed or divulged without prior written agreement.

2.6 BOOT signal (optional)

This input can be used to download a software in the Flash memory of the

WISMO module.

The internal boot procedure is started when this pin is low during the reset of

the module.

In normal mode this pin has to be left open.

In Internal boot mode, low level has to be set through a 1 k

Ω

resistor.

If used, this input has to be driven by an open collector or an open drain output.

BOOT : Pin 12

1K

Ω

BOOT: Pin 12

1 k

Ω

Switch BOOT

Figure 20: BOOT pin connection

•

If Switch BOOT = 1, Boot pin 12 = 0, for download mode

•

If Switch BOOT = 0, Boot pin 12 = 1, for normal mode

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Содержание WISMO Quik Q2406

Страница 1: ...WISMO Quik Q2400 series Q2406 and Q2426 Customer Design Guidelines Revision 007 Date January 2006...

Страница 2: ...ument is the sole and exclusive property of WAVECOM Not to be distributed or divulged without prior written agreement WISMO Quik Q2400 series Q2406 and Q2426 Customer Design Guidelines Reference WM_PR...

Страница 3: ...echanical information due to change of module design 003 26 Feb 05 Add SIM 1 8 3V management Update of 3V SIM Socket implementation diagram 004 26 Feb 05 No content modification document goes from ver...

Страница 4: ...part references and suppliers 8 versions of the WISMO Quik Q24x6 sub series are available Q2406A E GSM GPRS 900 1800 MHz version with 16 Mbits of Flash memory and 2 Mbits of SRAM 16 2 Q2406B E GSM GPR...

Страница 5: ...1 1 3 Additional customizing functions 10 1 1 4 RoHS compliance 10 2 Baseband Design 11 2 1 Power supply and ground design rules 11 2 1 1 Electrical constraints 11 2 1 2 Design Requirements 13 2 1 3 P...

Страница 6: ...istics 38 3 2 Antenna implementation 38 3 2 1 Recommendations 38 3 2 2 RF connection 39 4 Mechanical specifications 41 5 PCB design 42 5 1 General design rules 42 5 2 Design rules for application manu...

Страница 7: ...tion 24 Figure 12 Microphone decoupling capacitor 25 Figure 13 Example of main microphone MIC2 implementation differential connection 26 Figure 14 MIC1 inputs differential connection 27 Figure 15 MIC1...

Страница 8: ...r its use Please read carefully the safety precautions for a terminal based on WISMO Quik Q24x6 Series General information about Wavecom and its range of products is available at the following interne...

Страница 9: ...exclusive property of WAVECOM Not to be distributed or divulged without prior written agreement Reference documents 1 WISMO Quik Q2406 and q2426 Product Specification WM_PRJ_Q2400_PTS_002 2 WISMO Qui...

Страница 10: ...der 3 6 Volts 1 Watt GSM1800 1900 radio section running under 3 6 Volts 1 1 1 3 Power supply voltage Digital section running under 2 8 Volts 3V only SIM interface for both 1 8 V and 5 V SIM interface...

Страница 11: ...ce and Microphone Base connector Battery Antenna SIM connector 1 1 4 RoHS compliance The WISMO Quik Q24x6 sub series is now compliant with RoHS Restriction of Hazardous Substances in Electrical and El...

Страница 12: ...he bursted emission in GSM GPRS the power supply must be able to deliver high current peaks in a short time and assured that the voltage delivered to the module remains always under the limits specifi...

Страница 13: ...the total impedance battery contacts protections PCB should be 150 m to limit voltage drop out within emission burst As the radio power amplifier is directly connected to VBATT the module is sensitive...

Страница 14: ...id any phase error Insufficient power supply voltage could dramatically affect some RF performances TX power of course and modulation spectrum EMC performances spurious emission Emissions spectrum Pha...

Страница 15: ...nal impedance of the battery must be lower than 150 m to limit voltage drop out within emission burst max drop 0 3 V 2W Battery internal impedance must take into account the internal impedance of the...

Страница 16: ...ear the module power supply could also be added refer to section 2 1 3 3 The routing must be done in such a way that the total impedance line must be 10 m 217 Hz This impedance must include the via im...

Страница 17: ...better results In case a ferrite bead is used the recommendation given for the power supply connection must be carefully followed high current capacity and low impedance 2 2 Digital I O and periphera...

Страница 18: ...h a standard 96 kHz interface The maximum speed transfer is 400 kbits s Note The two wire interface is reserved for future use A software emulated version of this interface using GPIOs is available Se...

Страница 19: ...S Clear To Send output CT106 CTS Data Terminal Ready input CT108 2 DTR Data Set Ready output CT107 DSR Note the WISMO Quik Q24x6 module is a DCE Data Communication Equipment The Q24x6 sub series has b...

Страница 20: ...side or host processor outputs must be set at low level 0V or in high impedance Typical implementation with a terminal VCC 3V 3V 3V DCE DTE R Figure 6 Example of RS232 level shifter implementation Ty...

Страница 21: ...lue is determined by its input capacitance That explains why some combinations speed voltage are incompatible 2 2 6 SIM interface 2 2 6 1 SIM 3V management The SIM interface controls a 3 V SIM card on...

Страница 22: ...LC208SC6 SGS THOMSON 2 Recommended components ESDA6V1SC6 ST Figure 8 Example of 3V SIM Socket implementation SIM socket connection SIM socket pin description Signal Pin number Description VCC 1 SIM_VC...

Страница 23: ...As for 3 V SIM it is recommended to add Transient Voltage Suppressors on the signals connected to the SIM socket refer to Figure 9 Typical implementation CIN RIN DATA DDRV DVCC M2 M1 M0 CLK RST I O V...

Страница 24: ...s for 3 V SIM it is recommended to add Transient Voltage Suppressors on the signals connected to the SIM socket refer to Figure 10 Typical implementation CIN RIN DATA DDRV DVCC M2 M1 M0 CLK RST I O VC...

Страница 25: ...cm ESD protection is mandatory on the SIM lines if access from outside of the SIM connector is possible 2 3 Analog I O implementation 2 3 1 Analog to Digital Converter ADC inputs Two Analog to Digita...

Страница 26: ...ral The MIC2 inputs already include the biasing for an electret microphone allowing an easy connection to a handset The MIC1 inputs do not include an internal bias MIC1 SPK1 is then appropriate for a...

Страница 27: ...one MIC2 implementation differential connection C1 33 pF to 47 pF C2 C3 C4 47 pF to 100 pF L1 L2 100 nH C1 has to be the nearest possible to the microphone Microphone manufacturers provide this capaci...

Страница 28: ...100 to 330 R2 R3 usually between 1 k and 3 3 k as per the microphone characteristics C1 33 pF to 47 pF C2 C3 C4 47 F to 100 pF C5 47 F L1 L2 100 nH R1 and R4 are used as a voltage supply filter with...

Страница 29: ...0 R2 usually between 1 k and 3 3 k as per the VAUDIO voltage level and the microphone characteristics C1 10 pF to 33 pF C2 C3 C5 47 pF to 100 pF C4 47 F L1 L2 100 nH R1 is used as a voltage supply fil...

Страница 30: ...as shielding in order to avoid any disturbance on the audio path Speaker outputs SPK2 are push pull amplifiers and can be loaded down to 150 and up to 1 nF These outputs are differential and the outp...

Страница 31: ...rent is 80 mA PEAK A diode against transient peak voltage must be connected as described below Typical implementation C1 D1 VBATT BUZ R1 Figure 18 Example of Buzzer implementation R1 must be chosen in...

Страница 32: ...X55 may cause damage to the battery This circuit uses an interface which consists of a current source inputs CHG_IN where the constant current has to flow in order to charge the battery This current v...

Страница 33: ...to be chosen to have a RC filter with a time constant lower than 2 ms Calculation examples CTN 25 C 47 k CTN 55 C 10 k CTN 10 C 300 k CTN 10 C x VCC CTN 10 C R1 x BAT_TEMP full range R1 47 k BAT_TEMP...

Страница 34: ...e Flash memory of the WISMO module The internal boot procedure is started when this pin is low during the reset of the module In normal mode this pin has to be left open In Internal boot mode low leve...

Страница 35: ...external device It then behaves as an output If no external reset is necessary this input can be left open If used emergency reset it has to be driven by an open collector or an open drain output BOO...

Страница 36: ...n Operating conditions Parameter Condition Min Max Unit Output voltage I 10 mA 2 74 2 86 V Output Current 10 mA 2 10 VCC_RTC Real Time Clock Supply 2 10 1 General VCC_RTC input is used to provide a ba...

Страница 37: ...RTC Regulator 2 5 V 10 With very Low Iq VBATT 470 1K Ex 470uF Shottky Diode En Vout Gnd Vin Figure 22 RTC Supplied by a capacitor Estimated range with 470 F Capacitor 30 seconds 2 10 2 2 Super Capacit...

Страница 38: ...gure 24 RTC supplied by a battery cell with regulator Estimated range with 2 mAh rechargeable battery 3 days Warning Before battery cell assembly insure that cell voltage is lower than 2 75V to avoid...

Страница 39: ...at least Frequency depends on application A dual Band antenna shall work in all these frequency bands 3 2 Antenna implementation The impedance is 50 nominal and the DC impedance is 0 3 2 1 Recommendat...

Страница 40: ...ble The coaxial cable shall not be placed close to devices operated at low frequencies Some signals like VBATT and charger line may require some EMI RFI decoupling parallel 33 pF capacitor close to th...

Страница 41: ...r written agreement 3 Antenna cable preparation is shown in Figure 27 Figure 27 Antenna cable preparation drawing not to scale Note The WISMO Quik Q24x6 sub series does not include any antenna switch...

Страница 42: ...dule to be soldered on the Ground plane see Wavecom recommendation for lead free soldering in Section 5 3 Figure 28 gives the overall dimension of the module taking into account the PCB dimension and...

Страница 43: ...ground line on the PCB It is recommended to protect clock signals with a ground belt Refer to the following sections for other constraints 2 1 3 for the Power Supply 2 2 6 4 for the SIM interface 2 3...

Страница 44: ...18th January 2006 Confidential All rights reserved Page 43 51 This document is the sole and exclusive property of WAVECOM Not to be distributed or divulged without prior written agreement 5 5 Pads des...

Страница 45: ...ted by the application to the RF receiver in the receiver band ESD protection on SIM if accessible from outside serial link etc Refer to section 2 2 6 SIM interface Length of the SIM interface lines p...

Страница 46: ...he standard Xmodem protocol Therefore the application shall either allow a direct access to the WISMO serial link through an external connector or implement any mechanism allowing the WISMO firmware t...

Страница 47: ...connected to the serial bus of the modem The necessary signals to proceed with the downloading are Rx Tx RTS CTS and GND Prior to running the WAVECOM downloader the modem has to be set in download mo...

Страница 48: ...RESET and GND Prior to running the Wavecom downloader the module has to be set in download mode For this the BOOT signal has to be set to low while powering ON or resetting the modem Typical implemen...

Страница 49: ...cument is the sole and exclusive property of WAVECOM Not to be distributed or divulged without prior written agreement CT103 TXD GPIO_SCL GPIO_SDA CT106 CTS CT108 2 DTR CT104 RXD CT105 RTS NC_BOOT NC_...

Страница 50: ...8th January 2006 Confidential All rights reserved Page 49 51 This document is the sole and exclusive property of WAVECOM Not to be distributed or divulged without prior written agreement Figure 32 Dow...

Страница 51: ...he following reference 14 5087 060 930 861 The matting connector has the following reference 24 5087 060 X00 861 with X 2 or 9 The stacking height is 3 0 mm For further details see GPC data sheets in...

Страница 52: ...written agreement 9 4 Speaker Possible suppliers SANYO HOSIDEN PRIMO PHILIPS 9 5 Antenna Cable The following cable reference has been qualified for being mounted on WISMO Quik Q24x6 sub series RG178 9...

Страница 53: ...France Tel 33 0 1 46 29 08 00 Fax 33 0 1 46 29 08 08 Wavecom Inc 4810 Eastgate Mall Second Floor San Diego CA 92121 USA Tel 1 858 362 0101 Fax 1 858 558 5485 WAVECOM Asia Pacific Ltd 4 F Shui On Cent...

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