Sony Ericsson GR47 Design Manuallines Download Page 26 | Manualshive

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GR47/48 Design Guidelines

BA/SEM/MS 03:0015 Rev A

LZT 123 7596

26

6.2 Power supply

It is essential the application power supply is designed to comply with
the specification in section 3. This will be sufficient to pass type
approval, no RF testing will be required if it meets these specifications.

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Summary of Contents for GR47

Page 1: ...GR 47 GR 48 Design Guidelines All manuals and user guides at all guides com a l l g u i d e s c o m...

Page 2: ...ed in a retrieval system or transmitted in any form or by any means electronic or mechanical including photocopying and recording without the prior written consent of Sony Ericsson Mobile Communicatio...

Page 3: ...nds Free Functionality 16 3 6 RF AND ANTENNA INTEGRATION 17 3 7 INTERFACING TO A 3 3V PROCESSOR 18 3 8 SOFTWARE DOWNLOAD AND LOGGING CIRCUITRY 19 4 DEVELOPERS BOARD 21 4 1 POWER CIRCUIT 21 4 2 SIM CIR...

Page 4: ...SEM MS 03 0015 Rev A LZT 123 7596 4 6 7 2 GR47 software updates 28 APPENDIX I TECHNICAL DATA 29 APPENDIX II GR47 GR48PIN OUT 31 APPENDIX III GSM TRANSMIT WAVEFORM CHARACTERISTICS 34 All manuals and u...

Page 5: ...es for electronic devices should be used when handling the modules In the Integrators Manual you will find more information about safety and product care Never exceed these limits to ensure the module...

Page 6: ...Station MT Mobile Terminated PCM Pulse Code Modulation PDU Protocol Data Unit RLP Radio Link Protocol RF Radio Frequency RTC Real Time Clock SDP Service Discovery Protocol SMS Short Message Service SI...

Page 7: ...ted with AISI 304 Stainless Steel covers suitable to fulfil the environmental and EMC requirements The position of the different connectors and mounting holes are shown in figure 2 1 with dimensions 2...

Page 8: ...dule except the antenna are set through the System Connector Interface The connector allows the following connections board to board board to cable See section 5 for suppliers and part numbers The fig...

Page 9: ...the DGND are separated in the application 3 2 1 The Analogue Ground The AGND lead is the analogue audio reference ground It is the return signal for Audio To Mobile Station ATMS and Audio From Mobile...

Page 10: ...the current drawn by the module 3 3 1 Power Supply VCC The VCC supplies the module with external power Any other voltage needed is generated internally Parameter Mode Limit Voltage to be applied Nomin...

Page 11: ...d GM47 GM48 L1 33uH 2 Amp Vcc Figure 3 2 Simplified Power Supply Reference Model 3 3 2 General Recommendations The power supply conditions for the GR47 GR48Vcc connection are as follows Maximum voltag...

Page 12: ...smit Burst Vcc Dip approx 2 0 Amp 6000 F 200mV 1 5 Amp 6000 F 190mV 1 0 Amp 6000 F 190mV 0 5 Amp 12000 F 200mV Table 3 5 Note When this capacitance is used with the PSU conditions stated the PSU will...

Page 13: ...Off signal The on off line should be attached to an open collector drive or momentary contact switch otherwise the module alarm clock feature will not operate The on off line is wired Red internally w...

Page 14: ...if a 5 Volts SIM card is connected to it the interface will automatically detect this and adjust the appropriate parameters SIM connections are shown below Figure 3 2 SIM Connections Points to note re...

Page 15: ...analogue audio signals ATMS and AFMS to the CODEC An Advanced Portable Hands Free accessory is also shown to clarify the connections Simplified Circuit CODEC ATMS MIC AGND AFMS Audio Out 20 ohms Bias...

Page 16: ...ut off 3 dB 3500 50 Hz Hands Free mode 0V Output DC bias level Portable Hands Free Mode 2 0V 0 1V Additional Gain in Portable Hands Free Mode 28 5 dB Table 1 ATMS Levels Audio Levels 3 5 2 Advanced Po...

Page 17: ...uidelines i e Ensure the antenna is a good 50 match across the GSM 900 1800 bands for GR47 and GSM 850 1900 bands for GR48 Antenna installation should be where possible not close to large metal object...

Page 18: ...rred option as it ensures the GR47 module cannot experience over voltage conditions whilst turned on and cannot be driven when the module is turned off but the external circuitry remains powered This...

Page 19: ...uitry is shown which allows software download and logging to be performed VCC 3V6 MAX3380E VIO 2V7 CTMS CFMS VCC 0 1uF 1 3 5 7 9 11 2 4 6 8 10 12 34 58 45 46 SERVICE 14 0 1uF ON OFF 3 2 5 TD RD DTE 9...

Page 20: ...oved at CHG_IN the application will be supported by the battery alone When CHG_IN voltage returns the battery charging and maintenance will commence once more Battery charging algorithms are unique to...

Page 21: ...tted and should be present for all designs Note Provision was made for additional ESD protection on the board for development purposes This is not required and the devices have been removed from the S...

Page 22: ...velopers kit type number 4000006 has reduced protection but is enough to pass all EMC testing 4 6 Data signals The data and handshake lines are converted between 2 7V 5V logic and then between 5V RS23...

Page 23: ...ppliers 5 3 SIM card holder The data sheet for the SIM holder that is used on the developers board is available on request from customer support The card holder is a lockable type as problems have bee...

Page 24: ...the system connector follow http www imperial connect co uk products prodprofile127 html click on ITRQPGA thumbnail 5 4 2 IMS connectors Connector cables from MMCX to SMA can be ordered from this sup...

Page 25: ...h the test reports and certificates of the application should be sent to Sony Ericsson in order to register the application to the accessories list for the approval of the module this will aid the app...

Page 26: ...It is essential the application power supply is designed to comply with the specification in section 3 This will be sufficient to pass type approval no RF testing will be required if it meets these sp...

Page 27: ...48 were originally type approved without additional shielding around the application This is the responsibility of the system integrator Overall ESD protection should be guaranteed by the system integ...

Page 28: ...tegration is intended for portable use a new application and FCC ID is required Even if SAR measurements are not required it is considered good practice to insert a warning in any manual produced indi...

Page 29: ...l Band GR 48 GSM 850 MHz and 1900 MHz Dual Band Maximum RF output power 2 W 1 W Antenna impedance 50 SIM card SIM card interface 3 V or 5 V Support of external SIM card Environmental specifications Op...

Page 30: ...to 25 on SIM SIM dependent Phone book capacity 100 DAC Parameter Value Units Resolution 8 bit Output voltage swing for Code 00HEX 0 138 0 1 V Output voltage swing for Code FFHEX 2 61 0 2 V Nominal Ste...

Page 31: ...he module on off 15 SIMVCC Dig 3 5 V SIM card power supply Power output for SIM Card from module 16 SIMPRESENCE I Internal pull up open drain SIM Presence A 1 shall indicate that the SIM is missing a...

Page 32: ...to transmit data towards the GSM device to a 75mA max 35 TX_ON O Dig 2 75 This output shall indicate when the GSM module is going to transmit the burst 36 RI KEYCOL2 O2 O O O Dig 2 75 Ring Indicator U...

Page 33: ...audio input 51 PCMSYNC O Dig 2 75 DSP PCM frame sync 52 PCMCLK O Dig 2 75 DSP PCM clock output 53 MICP I Analogue Microphone input positive 54 MICN I Analogue Microphone input negative 55 BEARP O Ana...

Page 34: ...it burst The receive burst can draw up to 100mA As the current consumption of the receive burst does not normally cause problems for power supply current drain the simplified PSU model in figure 1 com...

Page 35: ...rent limit is not reached then section B will continue for the length of the transmit burst Current limit will be reached when the voltage dropped across RLINE reaches V ILIM RLINE D The sharp fall in...

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