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Telit GM862-QUAD/-QUAD-PY

Hardware User Guide

1vv0300692, Rev. ISSUE#0, - 04/10/2005

Reproduction forbidden without DAI Telecom written authorization – All Right reserved – Right of modification reserved

page 27 of 69

5.3.1 Balanced Microphone biasing

The balanced microphone bias voltage should be obtained from a dedicated voltage regulator, in
order to eliminate the noise present on the power lines. This regulator can be the same for all the
audio paths. The microphone should be supplied from a capacitor multiply circuit.
For example a circuit for the balanced microphone biasing can be:

NOTE: In the balanced application the resistors R2 and R3 must have the same value to keep the
circuit balanced.

NOTE: The cable to the microphone should not be shielded, instead a twisted pair cable shall be used.

NOTE: The microphone sensitivity changes with the value of R2 and R3. Usually the microphones are
characterized with 2k

Ω

biasing resistance, so try to keep the sum of R2 and R3 around 2k

Ω

. Refer to

your microphone manufacturer for the mic. characteristics.

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Summary of Contents for GM862-QUAD

Page 1: ...ction forbidden without DAI Telecom written authorization All Right reserved Right of modification reserved page 1 of 69 T Te el li it t G GM M8 86 62 2 Q QU UA AD D G GM M8 86 62 2 Q QU UA AD D P PY Y H Ha ar rd dw wa ar re e U Us se er r G Gu ui id de e Telit Communications S p A 2005 ...

Page 2: ... 2 1 1 5V input Source Power Supply Design Guidelines 10 3 2 1 2 12V input Source Power Supply Design Guidelines 11 3 2 1 3 Battery Source Power Supply Design Guidelines 12 3 2 1 4 Battery Charge control Circuitry Design Guidelines 12 3 2 2 Thermal Design Guidelines 14 3 2 3 Power Supply PCB layout Guidelines 15 4 SERIAL PORT 17 4 1 RS232 level translation 19 4 2 5V UART level translation 21 5 MIC...

Page 3: ...hone design 38 7 GENERAL PURPOSE I O 40 7 1 Using a GPIO pin as INPUT 40 7 2 Using a GPIO pin as OUTPUT 40 7 3 Using the Alarm Output GPIO6 41 7 4 Using the Buzzer Output GPIO7 41 8 CAMERA 42 8 1 Agilent Camera 42 8 1 1 Camera interface connectors 42 8 1 2 EVB for camera support 44 8 2 Camera Transchip 45 8 2 1 Camera interface connectors 45 8 2 2 EVB for Agilent and Transchip camera support 47 8 ...

Page 4: ...onsidered mandatory instead the information given shall be used as a guide and a starting point for properly developing your product with the Telit GM862 QUAD QUAD PY modules For further hardware details that may not be explained in this document refer to the GM862 QUAD QUAD PY Product Description document where all the hardware information is reported NOTE In this document all the hardware soluti...

Page 5: ...nternally pulled up Using pull up resistor may bring to latch up problems on the GM862 QUAD power regulator and improper power on off of the module The line ON must be connected only in open collector configuration NOTE In this document all the lines that are inverted hence have active low signals are labeled with a name that ends with a or with a bar over the name TIP To check if power has raised...

Page 6: ...den without DAI Telecom written authorization All Right reserved Right of modification reserved page 6 of 69 For example 1 Let s assume you need to drive the ON pin with a totem pole output of a 3 5 V microcontroller uP_OUT1 2 Let s assume you need to drive the ON pin directly with an ON OFF button ...

Page 7: ...om the network It shall be kept as an emergency exit procedure to be done in the rare case that the device gets stucked waiting for some network or SIM responses If device does not respond to a command in the timeout window retry issuing the command and if still no response is received a hardware unconditional shutdown shall be issued and then a restart 2 2 1 1 Hardware shutdown To turn OFF the GM...

Page 8: ... output Using pull up resistor may bring to latch up problems on the GM862 QUAD power regulator and improper functioning of the module The line RESET must be connected only in open collector configuration TIP The unconditional hardware reset should be always implemented on the boards and software should use it as an emergency exit procedure For example 1 Let s assume you need to drive the RESET pi...

Page 9: ...tem is made in a way that the RF transmission is not continuous else it is packed into bursts at a base frequency of about 216 Hz the relative current peaks can be as high as about 2A Therefore the power supply has to be designed in order to withstand with these current peaks without big voltage drops this means that both the electrical design and the board layout must be designed for this current...

Page 10: ...ply is 3 8V hence there s not a big difference between the input source and the desired output and a linear regulator can be used A switching power supply will not be suited because of the low drop out requirements When using a linear regulator a proper heat sink shall be provided in order to dissipate the power generated A Bypass low ESR capacitor of adequate capacity must be provided in order to...

Page 11: ...r size and its faster transient response This allows the regulator to respond quickly to the current peaks absorption For car PB battery the input voltage can rise up to 15 8V and this should be kept in mind when choosing components all components in the power supply must withstand this voltage A Bypass low ESR capacitor of adequate capacity must be provided in order to cut the current absorption ...

Page 12: ...y inversion Otherwise the battery connector should be done in a way to avoid polarity inversions when connecting the battery The battery capacity must be at least 500mAh in order to withstand the current peaks of 2A the suggested capacity is from 500mAh to 1000mAh 3 2 1 4 Battery Charge control Circuitry Design Guidelines The charging process for Li Ion Batteries can be divided into 4 phases Quali...

Page 13: ...e will become longer hence the duty cycle of the pulses will decrease The battery is considered fully charged when the pulse duty cycle is less than a threshold value typically 10 the pulse charge stops and eventually the maintenance starts The last phase is not properly a charging phase since the battery at this point is fully charged and the process may stop after the final charge The maintenanc...

Page 14: ...the power supply heat sink should be done with the following specifications Average current consumption during transmission PWR level max rms 350mA Average current consumption during transmission PWR level min rms 100mA Average current during Power Saving 4mA Average current during idle Power Saving disabled 17mA NOTE The average consumption during transmissions depends on the power level at which...

Page 15: ...supply is a switching type it can be placed close to the inductor to cut the ripple provided the PCB trace from the capacitor to the GM862 QUAD is wide enough to ensure a dropless connection even during the 2A current peaks The protection diode must be placed close to the input connector where the power source is drained The PCB traces from the input connector to the power regulator IC must be wid...

Page 16: ...served page 16 of 69 The placement of the power supply on the board should be done in such a way to guarantee that the high current return paths in the ground plane are not overlapped to any noise sensitive circuitry as the microphone amplifier buffer or earphone amplifier The power supply input cables should be kept separate from noise sensitive lines such as microphone earphone cables ...

Page 17: ...erent from 2 8V Depending from the type of serial port on the OEM hardware a level translator circuit may be needed to make the system work The only configuration that doesn t need a level translation is the 2 8V UART The serial port on the GM862 QUAD is a 2 8V UART with all the 7 RS232 signals It differs from the PC RS232 in the signal polarity RS232 is reversed and levels The levels for the GM86...

Page 18: ...Data Set Ready Output from the GM862 QUAD that indicates the module is ready 7 RTS rts_uart 45 Request to Send Input to the GM862 QUAD that controls the Hardware flow control 8 CTS cts_uart 29 Clear to Send Output from the GM862 QUAD that controls the Hardware flow control 9 RI ri_uart 30 Ring Indicator Output from the GM862 QUAD that indicates the incoming call condition NOTE According to V 24 RX...

Page 19: ...vels and invert the signal is by using a single chip level translator There are a multitude of them differing in the number of driver and receiver and in the levels be sure to get a true RS232 level translator not a RS485 or other standards By convention the driver is the level translator from the 0 3V UART level to the RS232 level while the receiver is the translator from RS232 level to 0 3V UART...

Page 20: ...Reproduction forbidden without DAI Telecom written authorization All Right reserved Right of modification reserved page 20 of 69 An example of level translation circuitry of this kind is the RS232 serial port lines are usually connected to a DB9 connector with the following layout ...

Page 21: ...n uses a microcontroller with a serial port UART that works at a voltage different from 2 8 3V then a circuitry has to be provided to adapt the different levels of the two set of signals As for the RS232 translation there are a multitude of single chip translators but since the translation requires very few components then also a discrete design can be suited For example a possible inexpensive tra...

Page 22: ...nt is 10mA A maximum of 9 47 KΩ pull up resistors can be connected to the PWRCTL pin provided no other devices are connected to it and the pulled up lines are GM862 QUAD input lines connected to open collector outputs in order to avoid latch up problems on the GM862 QUAD Care must be taken to avoid latch up on the GM862 QUAD and the use of this output line to power electronic devices shall be avoi...

Page 23: ...d be used for handset function while the external audio path is suited for hands free function car kit Both microphone paths from the Telit GM862 QUAD are balanced and the OEM circuitry should be designed balanced to reduce the common mode noise typically generated on the ground plane however for particular OEM application needs also an unbalanced circuitry can be used The microphone input lines c...

Page 24: ...icrophone is Voltage Output dB 45 4 7 49 7 dBVrms corresponding to Voltage Output 10 49 7 20 3 3 10 3 Vrms by having the microphone gain set to 24 dB corresponding to 15 8 times the signal in the nominal conditions on the input mic pins of the GM862 QUAD will be Voltage GM862 QUAD_mic 3 3 10 3 15 8 51 mVrms During the spoken conditions the signal varies according to the volume of the voice of the ...

Page 25: ...45dBVrms Pa at the normal spoken conditions 4 7dB Pa at 7 cm from the mouth of the talker and with a further attenuation of 20dB due to the distance from the microphone about 50 cm At that acoustic pressure the voltage output from the microphone is Voltage Output dB 45 4 7 20 69 7 dBVrms corresponding to Voltage Output 10 69 7 20 3 3 10 4 Vrms by having the microphone gain set to 10 dB correspondi...

Page 26: ...ophone then keep the lines on the PCB balanced and unbalance the path close to the microphone wire connector if possible For the microphone biasing voltage use a dedicated voltage regulator and a capacitor multiply circuit Make sure that the microphone traces in the PCB don t cross or run parallel to noisy traces especially the power line If possible put all around to the microphone lines a ground...

Page 27: ...ame for all the audio paths The microphone should be supplied from a capacitor multiply circuit For example a circuit for the balanced microphone biasing can be NOTE In the balanced application the resistors R2 and R3 must have the same value to keep the circuit balanced NOTE The cable to the microphone should not be shielded instead a twisted pair cable shall be used NOTE The microphone sensitivi...

Page 28: ...icrophone biasing can be NOTE In the unbalanced application the capacitor C3 shall be 200nF otherwise the frequency response will be cut at low band frequencies down to 300Hz This capacitor can be placed close to the MIC pin EXT_MIC or INT_MIC depending on the audio path chosen or if possible it should be placed close to the shielded cable connector If the ground return path is well designed then ...

Page 29: ...wire connector 5 4 1 Buffered Balanced Mic A sample circuit can be This circuit has a gain of 15 times 24 dB and is therefore suited for the internal mic input having a microphone with a sensitivity close to the suggested one 45 dBVrms Pa if the used microphone has a different sensitivity or if the buffer is connected to the external mic input then a gain adjustment shall be done by changing resis...

Page 30: ...tage Output dB 45 4 7 49 7 dBVrms corresponding to Mic_Voltage_Output 10 49 7 20 3 3 10 3 Vrms in order to have a signal of 50 mVrms on the GM862 QUAD internal mic inputs then the buffer must have a gain of Voltage GM862 QUAD_intmic Mic_Voltage_Output 50 10 3 3 3 10 3 15 Hence in these conditions the signal level on the input pins of the internal mic of the GM862 QUAD is 24 dB 15 times higher than...

Page 31: ...pacitor C3 on the unbalanced biasing circuit is not anymore needed if this Buffered design is used Two different configurations are used one inverting and the other not inverting hence an additional 6dB 2 times gain is achieved by doubling the mic signal path The gain of the not inverting buffer is given by the formula 720 719 1 R R Gain and hence it cannot be less than 1 In the example shown the ...

Page 32: ...Vrms Pa at the normal spoken conditions 4 7dB Pa but at 50 cm from the mouth of the talker an additional 20 dB loss shall be considered At that acoustic pressure the voltage output from the microphone is Mic Voltage Output dB 45 4 7 20 69 7 dBVrms corresponding to Mic_Voltage_Output 10 69 7 20 3 3 10 4 Vrms in order to have a signal of 1 mVrms 10 dB lower than the nominal input for the GM862 QUAD ...

Page 33: ...idden without DAI Telecom written authorization All Right reserved Right of modification reserved page 33 of 69 As a consequence the values of the capacitors C726 and C727 shall be C726 1 2π 8000 R719 3 5 10 9 F C727 1 2π 8000 R711 1 2 10 9 F The commercial values of 3 3nF and 1nF are then chosen ...

Page 34: ... kit Both speaker outputs from the Telit GM862 QUAD are bridged type and the OEM circuitry shall be designed bridged to reduce the common mode noise typically generated on the ground plane and to get the maximum power output from the device however for particular OEM application needs also a single ended circuitry can be designed The GM862 QUAD speaker output lines characteristics are internal spe...

Page 35: ...pedance operating conditions 8 Ω minimum load impedance 8 Ω signal bandwidth 150 8000 Hz 3 dB maximum output 800 mVrms maximum power output 80 mW 8 Ω THD N 1 80mW internal external ear bridged line coupling DC line type bridged not referred to GND speaker impedance operating conditions 8 Ω minimum load impedance 8 Ω signal bandwidth 150 8000 Hz 3 dB maximum output 1 6 Vrms maximum power output 320...

Page 36: ...put from the device Keep the earphone traces on the PCB and wires as short as possible If your application requires a single ended earpiece and you want a direct connection then leave one of the two output lines open and use only the other referred to ground Remember that in this case the power output is 4 times lower than the bridged circuit and may not be enough to ensure a good voice volume Mak...

Page 37: ...t from the suggested then it is preferable to use an amplifier to increase the power and current output capabilities Again the output from the GM862 QUAD is bridged and both lines should be used where possible as inputs to the power amplifier This ensures a higher common mode rejection ratio reducing the GSM current busts noise on the speaker output In this case the EAR_MT lines from the GM862 QUA...

Page 38: ...e the only difference is that the external ear audio output level from the GM862 QUAD is 6dB lower than the internal one so the gain of the amplifier must be 6dB higher to provide the same audio level 6 5 Car Kit speakerphone design For the car kit speaker phone function the power output requirement is usually at least 4W therefore an amplifier is needed to boost the GM862 QUAD output The design o...

Page 39: ...coupled as much as possible from the GM862 QUAD power supply by either keeping separate wires and placing bypass capacitors of adequate value close to the amplifier power input pins The biasing voltage of the amplifier shall be stabilised with a low ESR e g a tantalum capacitor of adequate value NOTE The GM862 QUAD audio path connected to the car kit hands free amplifier MUST be the external one E...

Page 40: ...ports all three modes and can be input output buzzer output Alternate function All GPIO pins except from GPIO1 and GPIO2 that are buffered with a transistor are 2 8V CMOS signals and their interface levels are the same specified in the paragraph 4 Serial Port 7 1 Using a GPIO pin as INPUT The GPIO pins when used as inputs can be connected to a digital output of another device and report its status...

Page 41: ...er the application and the GM862 QUAD during sleep periods drammatically reducing the sleep comsumption to few μA In battery powered devices this feature will greatly improve the autonomy of the device 7 4 Using the Buzzer Output GPIO7 The GPIO7 pin when configured as Buzzer Output is controlled by the GM862 QUAD module and will drive with appropriate square waves a Buzzer driver This permits to y...

Page 42: ...x connector of the module and a 18 pins ZIF connector vertical type for the CMOS camera Molex 52991 0508 GM862 ZIF CF21181V0RP Pin Signal I O Function Pin Signal I O 21 CAM_SYNC I End of frame is an output for the camera and an input for the GM862 QUAD 16 EOF O 25 MON1_CAM O The module clock is provided by the MON1_CAM output of the GM862 QUAD 17 MCLK I 28 IICSCL_CAM O IICbus serial clock 4 S_CLK ...

Page 43: ...tion All Right reserved Right of modification reserved page 43 of 69 48 CAM_DRDY I Data ready in an output for the camera and an input for the GM862 QUAD 7 DR O 50 CAM_PWR_ON O 2 8V power supply enable for the camera 2 VCC_MAIN I Horizontal sync n c 6 HSYNC O Input command for switching power ON or OFF 5 ON_OFF I 2 4 6 GND Ground 1 18 GND ...

Page 44: ...ion to the PC To switch on the level translator a jumper shall be set on PL203 12 pin Berg male connector PL202 to supply the GM862 QUAD mounted on the EVB The input source power should be in the range 4 5V 12V Charge line is also provided in case a Li Ion battery is connected to the VBATT pins Charge input must fulfil charger line requests 50 pin Molex male connector PL103 to interface with the G...

Page 45: ...e connection between GM862 and Transchip camera Molex 52991 0508 GM862 TC5747MF24L Pin Signal I O Notes Pin Signal I O 46 GPIO3 PD 6 O I2C bus serial clock 1 SCLK I 2 4 6 GND Ground 2 AGND I 50 GPIO7 CAM_PWR_ON O External 2 8V Regulator enable controlled by CAM_PWR_ON pin 3 AVDD28 I 34 GPIO9 PD 1 O Camera Reset 4 RESET_N I 25 MON1 MON1_CAM O Clock 5 CLK_IN I 2 4 6 GND Ground 6 DGND I n c 7 DOUT_0 ...

Page 46: ... VALIDH O n c 18 VALIDV O 50 GPIO7 CAM_PWR_ON O External 2 8V Regulator enable controlled by CAM_PWR_ON pin 19 DVDD28 I 47 GPIO4 IICSDA_CAM I O I2C bus serial data 20 SDIN I O 2 4 6 GND Ground 21 PS1 I 32 GPIO8 PD 0 O Camera power type selector 22 PS2 I 2 4 6 GND Ground 23 SHIELD Flash Enable 24 LED_CTRL O Filter the AVDD28 Use a Buffer between module clk out MON1_CAM and camera clk in CLK_IN Non ...

Page 47: ...n reserved page 47 of 69 8 2 2EVB for Agilent and Transchip camera support In order to interface the Telit GM862 with a CMOS camera Telit has developed an evaluation board The EVK allow connecting all Telit modules through 2 connectors of 40 pins each The I2CBUS DUAL CAMERA board is plugged in the 2 connectors of 30 pins each on the module board MODULE BOARD MAIN BOARD CAMERA BOARD ...

Page 48: ...he Camera s connectors refers to Module Connector s pin number DVDD is an external power supply of 2 8V controlled or gated by pin CAM_PWR_ON 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 GND DVDD IICSDA_CAM IICSCL_CAM CAM_PWR_ON CAM_DRDY PD 7 CAM_SYNC CAM_CLK GND PD 6 PD 5 PD 4 PD 3 PD 2 PD 1 PD 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 GND AVDD CAM_CLK GND DVDD IICSDA_CAM G...

Page 49: ...ardware User Guide 1vv0300692 Rev ISSUE 0 04 10 2005 Reproduction forbidden without DAI Telecom written authorization All Right reserved Right of modification reserved page 49 of 69 8 2 4 Schematic Diagrams for supported cameras ...

Page 50: ...it GM862 QUAD QUAD PY Hardware User Guide 1vv0300692 Rev ISSUE 0 04 10 2005 Reproduction forbidden without DAI Telecom written authorization All Right reserved Right of modification reserved page 50 of 69 ...

Page 51: ... medieum 2 high OK AT CAMRES 0 camera resolution 0 VGA 1 QVGA 2 QQVGA OK AT CAMCOL 0 camera color 0 color 1 grayscale OK AT CAMZOOM 0 camera zoom 0 x1 1 x2 2 x4 OK AT CAMTXT 0 camera timestamp 0 no 1 time only 2 data only 3 time data OK Taking an reading a photo AT CAMEN 1 camera ON OK AT TPHOTO take photo OK AT OBJL see photo dimension OBJL Snapshot 38900 where 38900 is the file dimension in byte...

Page 52: ...Hardware User Guide 1vv0300692 Rev ISSUE 0 04 10 2005 Reproduction forbidden without DAI Telecom written authorization All Right reserved Right of modification reserved page 52 of 69 9 Document Change Log Revision Date Changes ...

Page 53: ... QUAD PY Hardware User Guide 1vv0300692 Rev ISSUE 0 04 10 2005 Reproduction forbidden without DAI Telecom written authorization All Right reserved Right of modification reserved page 53 of 69 10 Annex A EVK schematics ...

Page 54: ...10K 5 R109 GND 0603 10K 5 R111 GND 0603 4 3K 5 R110 FCMM0502 SO102 2 1 0603 1K 5 R112 0603 1K 5 R113 0603 1K 5 R114 GND 0603 0 5 R115 0603 0 5 R116 noMount YES 041201 041201 EVK for GM862 S1 0208 301101 Locatelli M 1 30208SE10944b cs944b cir 10 Deperini F BATTERY CHARGE CONTROL ON CHARGE NTC enabled NTC disabled Temperature sensing control WARNING When the temperature sensing is disabled the charg...

Page 55: ... 5 R203 GND 0603 47 5 R202 FCMM0502 SO201 2 1 25V 0603 39nF X7R C203 GND GND GND GND 50V 0603 1 5nF X7R C208 DO3316 10uH L201 GND 10V CONT D 100uF C204 GND 10V CONT D 100uF C201 0603 470nF 6 3V X5R C209 GND GND GND 25V 0603 39nF X7R C207 6KA24 6KA24 DZ201 GND GND 6KA24 6KA24 DZ202 35V CONT E 10uF C202 STPS140Z SOD123 D201 GND 3 7V FCMM0502 SO202 2 1 GND GND GND BAT62 02W SCD 80 D202 LT1528CQ U201 ...

Page 56: ...L301 3 2 1 4 5 6 7 8 9 10 RING 004 5D DCD 004 6D CTS 004 5D 787200 1 SO301 3 2 1 4 5 6 7 8 9 GND 50V 0603 39pF COG C336 50V 0603 39pF COG C333 GND 50V 0603 39pF COG C335 50V 0603 39pF COG C337 LQG18HN39NJ00 LQG18 39nH L312 LQG18HN39NJ00 LQG18 39nH L313 LQG18HN39NJ00 LQG18 39nH L314 50V 0603 39pF COG C331 LQG18HN39NJ00 LQG18 39nH L315 50V 0603 39pF COG C330 LQG18HN39NJ00 LQG18 39nH L316 50V 0603 39...

Page 57: ...ount YES L401 FORBIDDEN VIETATE ALL RIGHTS RESERVED RIPRODUZIONE E DIVULGAZIONE REPRODUCTION AND DISCLOSURE TUTTI I DIRITTI RISERVATI PROJECT A3 DESCRIPTION DRAWING CODE FORM MODIFY OF SHEETS DATE SHEET N VERIFIED PROJECT DRAWN PATH home users area Mod 067 rev 0 03 01 ANNOTATION FILE NAME B C D E A Mobile Terminals S p A 4 2 9 81 0 7 13 11 6 5 SIM_CARD 52827 0611 SO401 1 C1 6 C6 5 C5 4 C4 3 C3 2 C...

Page 58: ...1 2 1 3 7V 1215061 02F PL503 2 1 GND 0603 0 5 R507 TP501 47K 47K WEs BCR148W SOT 323 Q502 2 3 1 47K 47K WEs BCR148W SOT 323 Q504 2 3 1 47K 47K WEs BCR148W SOT 323 Q503 2 3 1 47K 47K WEs BCR148W SOT 323 Q507 2 3 1 E2 TC7S08FU U501 2 4 1 TC7S08FU U501 5 VCC_1 3 GND_1 3 7V GND 16V 0603 100nF Y5V C501 47K 47K WEs BCR148W SOT 323 Q508 2 3 1 GND 1215061 02F PL507 2 1 LQG18HN39NJ00 LQG18 39nH L501 50V 06...

Page 59: ...2ID U602 4 V 8 V 7 OUT 6 5 0603 82K 5 R618 0603 1K 5 R603 GND LGK2009 0201 LGK2009 02 SO601 3 4 2 1 5 0603 470K 5 R619 16V 0603 100nF Y5V C608 0603 47K 5 R613 0603 150K 5 R604 GND 50V 0603 1nF X7R C623 GND 0603 47K 5 R616 GND LQG18HN39NJ00 LQG18 39nH L601 0603 47K 5 R614 J01001A1944 SO605 1 IO 2 3 4 5 GND MIC_MT 004 4D 0603 1K 5 R602 16V 0603 100nF Y5V C631 GND 16V 0603 100nF Y5V C632 50V 0603 39p...

Page 60: ...3 47K 5 R717 3V_EXT_MIC_BAL J01001A1944 SO705 1 IO 2 3 4 5 3V_EXT_MIC_SINGLE 0603 10K 5 R708 TS3V912ID U701 4 V 8 V 7 OUT 6 5 0603 47K 5 R715 0603 10K 5 R707 0603 10K 5 R720 GND 16V 0603 100nF Y5V C709 TS3V912ID U702 4 V 8 V 7 OUT 6 5 3V_EXT_MIC_BAL LQG18HN39NJ00 LQG18 39nH L701 3V_EXT_MIC_SINGLE 16V 0603 100nF Y5V C714 16V 0603 100nF Y5V C710 4V CONT R 4 7uF C701 MIC_HF 004 3D GND 3V_MIC 0603 33K...

Page 61: ...3 1nF X7R C815 LM4862M U801 6 VDD 2 BYPASS 3 IN 8 VC2 1 SHUTDOWN 7 GND 4 IN 5 VC1 GND EAR_HF 004 3D 009 11B EAR_MT 004 3D 006 10E 0603 100K 5 R803 GND GND 16V 0603 100nF Y5V C826 16V 0603 100nF Y5V C821 16V 0603 100nF Y5V C802 50V 0603 39pF COG C804 EAR_MT 004 3D 006 10D GND 50V 0603 1nF X7R C813 GND 16V 0603 100nF Y5V C829 J01001A1944 SO805 1 IO 2 3 4 5 LGY6502 0600 LGY650X SO801 3 2 1 GND GND 16...

Page 62: ...I RISERVATI PROJECT A3 DESCRIPTION DRAWING CODE FORM MODIFY OF SHEETS DATE SHEET N VERIFIED PROJECT DRAWN PATH home users area Mod 067 rev 0 03 01 ANNOTATION FILE NAME B C D E A Mobile Terminals S p A 4 2 9 81 0 7 13 11 6 5 50V 0603 39pF COG C903 noMount YES 16V 0603 100nF Y5V C911 GND 16V 0603 100nF Y5V C902 GND 16V 0603 100nF Y5V C908 0603 10K 5 R903 GND 0603 15K 5 R902 35V CONT E 10uF C910 50V ...

Page 63: ...Reproduction forbidden without DAI Telecom written authorization All Right reserved Right of modification reserved page 63 of 69 ...

Page 64: ...Reproduction forbidden without DAI Telecom written authorization All Right reserved Right of modification reserved page 64 of 69 ...

Page 65: ...D Hardware User guide 1vv0300692 Rev ISSUE 0 04 10 2005 Reproduction forbidden without DAI Telecom written authorization All Right reserved Right of modification reserved page 65 of 69 11 Annex B Camera EVB schematics ...

Page 66: ...Reproduction forbidden without DAI Telecom written authorization All Right reserved Right of modification reserved page 66 of 69 ...

Page 67: ...Reproduction forbidden without DAI Telecom written authorization All Right reserved Right of modification reserved page 67 of 69 ...

Page 68: ...Reproduction forbidden without DAI Telecom written authorization All Right reserved Right of modification reserved page 68 of 69 ...

Page 69: ...Reproduction forbidden without DAI Telecom written authorization All Right reserved Right of modification reserved page 69 of 69 ...

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