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LPWA Module Series

BG950A-GL&BG951A-GL_Hardware_Design

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2.3. Functional Diagram

The following figure shows a block diagram of the module and illustrates the major functional parts.



Power management



Baseband



Radio frequency



Peripheral interface

Figure 1: Functional Diagram of BG950A-GL

1. PCM and I2C interfaces are for VoLTE

only.

2. The related information of BG951A-GL will be added in the future version.

NOTE

Summary of Contents for LPWA Series

Page 1: ...BG950A GL BG951A GL Hardware Design LPWA Module Series Version 1 0 0 Date 2021 07 07 Status Preliminary...

Page 2: ...laimer While Quectel has made efforts to ensure that the functions and features under development are free from errors it is possible that these functions and features could contain errors inaccuracie...

Page 3: ...mitting reproducing disseminating and editing this document as well as using the content without permission are forbidden Offenders will be held liable for payment of damages All rights are reserved i...

Page 4: ...se interference on sensitive medical equipment so please be aware of the restrictions on the use of wireless devices when in hospitals clinics or other healthcare facilities Cellular terminals or mobi...

Page 5: ...eries BG950A GL BG951A GL_Hardware_Design 4 89 About the Document Revision History Version Date Author Description 2021 07 07 Lex LI Ben JIANG Creation of the document 1 0 0 2021 07 07 Lex LI Ben JIAN...

Page 6: ...Sleep Mode 28 3 2 1 UART Application Scenario 28 3 3 Power Saving Mode PSM 29 3 4 Extended Idle Mode DRX e I DRX 29 3 5 Airplane Mode 30 3 6 Power Supply 31 3 6 1 Power Supply Pins 31 3 6 2 Power Sup...

Page 7: ...quency Bands 57 5 2 2 GNSS Performance 58 5 2 3 Reference Design 59 5 3 Reference Design of RF Routing 59 5 4 Requirements for Antenna Design 61 5 5 RF Connector Recommendation 62 6 Reliability and El...

Page 8: ...Auxiliary UART Interface 45 Table 20 Pin Definition of ADC Interface 46 Table 21 Characteristics of ADC Interface 47 Table 22 Pin Definition of PSM_IND 47 Table 23 Pin Definition of NET_STATUS 48 Tab...

Page 9: ...GNSS Current Consumption 70 Table 45 BG951A GL GNSS Current Consumption 70 Table 46 Electrostatics Discharge Characteristics Temperature 25 C Humidity 45 71 Table 47 Operating and Storage Temperature...

Page 10: ...face 43 Figure 18 Reference Circuit with Translator Chip 45 Figure 19 Reference Circuit with Transistor Circuit 46 Figure 20 Reference Circuit of the PSM Status Indication 48 Figure 21 Reference Circu...

Page 11: ...nce of 20cm to the human body FCC Certification Requirements According to the definition of mobile and fixed device is described in Part 2 1091 b this device is a mobile device And the following condi...

Page 12: ...operating configurations including portable configurations with respect to 2 1093 and different antenna configurations For this device OEM integrators must be provided with labeling instructions of fi...

Page 13: ...r requirements Manual Information To the End User The OEM integrator has to be aware not to provide information to the end user regarding how to install or remove this RF module in the user s manual o...

Page 14: ...e module pr c d du mot Contient ou d un libell semblable exprimant la m me signification comme suit Contient IC 10224A 2021BG950A ou o 10224A 2021BG950A est le num ro de certification du module 1 1 Sp...

Page 15: ...s engineered to meet the demanding requirements in M2M applications such as smart metering tracking system security wireless POS etc Related information and details are listed in the table below BG950...

Page 16: ...d compatible with LTE Cat NB1 Module Supported Bands 2 LTE Bands Power Class GNSS BG950A GL Cat M1 3 LTE FDD B1 B2 B3 B4 B5 B8 B12 B13 B18 B19 B20 B25 B26 B27 B28 B66 Cat NB1 NB2 4 LTE FDD B1 B2 B3 B4...

Page 17: ...ansmission rates up to 12 MHz on USB Full speed Used AT command communication data transmission software debugging and firmware upgrade USB serial driver Windows 7 8 8 1 10 Linux 2 6 5 4 Android 4 x 5...

Page 18: ...tel enhanced AT commands Antenna Interface ANT_MAIN ANT_GNSS 50 impedance Transmitting Power LTE FDD Class 3 23 dBm 2 7 dB LTE Features Support 3GPP Rel 14 Supports LTE Cat M1 and LTE Cat NB1 NB2 Supp...

Page 19: ...hows a block diagram of the module and illustrates the major functional parts Power management Baseband Radio frequency Peripheral interface Figure 1 Functional Diagram of BG950A GL 1 PCM and I2C inte...

Page 20: ...LPWA Module Series BG950A GL BG951A GL_Hardware_Design 19 89 2 4 Pin Assignment The following figure illustrates the pin assignment of BG950A GL Figure 2 Pin Assignment of BG950A GL Top View...

Page 21: ...cted 3 GND pins should be connected to ground in the design 4 PCM and I2C interfaces are for VoLTE only 5 Only BG950A GL supports GNSS_LNA_EN pin 51 and VDD_RF pin 99 6 For BG950A GL pin27 and pin28 c...

Page 22: ...Y 15 DI Turn on off the module VILmax 0 3 V VIHmin 1 0 V Reset Pin Name Pin No I O Description DC Characteristics Comment RESET_N 17 DI Reset the module VILmax 0 3 V VIHmin 1 3 V Status Indication Pin...

Page 23: ...x 0 57 V VIHmin 1 19 V VIHmax 2 0 V VOLmax 0 38 V VOHmin 1 36 V USIM_CLK 46 DO U SIM card clock VOLmax 0 38 V VOHmin 1 36 V USIM_GND 47 Specified ground for U SIM card Main UART Interface Pin Name Pin...

Page 24: ...x 0 38 V VOHmin 1 36 V 1 8 V power domain If unused keep this pin open AUX GNSS_RXD 28 DI Auxiliary GNSS UART receive VILmin 0 2 V VILmax 0 57 V VIHmin 1 19 V VIHmax 2 0 V PCM Interface Pin Name Pin N...

Page 25: ...57 V VIHmin 1 19 V VIHmax 2 0 V 1 8 V power domain If unused keep this pin open GPIO2 26 DIO GPIO3 64 DIO GPIO4 65 DIO GPIO5 66 DIO GPIO6 85 DIO GPIO7 86 DIO GPIO8 87 DIO GPIO9 88 DIO ADC Interface Pi...

Page 26: ...terface Pin Name Pin No I O Description DC Characteristics Comment GRFC1 83 DO Generic RF controller VOLmax 0 38 V VOHmin 1 36 V VOHmax 2 0 V 1 8 V power domain If unused keep this pin open GRFC2 84 D...

Page 27: ...RS 232 converter cables USB data cables earphone antennas and other peripherals to control or to test the module For more details refer to document 1 up normally in order to ensure full function mode...

Page 28: ...ycle value Airplane Mode AT CFUN 4 or W_DISABLE pin can set the module into airplane mode where the RF function is invalid Minimum Functionality Mode AT CFUN 0 can set the module into a minimum functi...

Page 29: ...ve MAIN_DTR high Pull the PON_TRIG pin low The figure illustrates the connection between the module and the host Figure 3 Sleep Mode Application via UART Interface Driving the module s MAIN_DTR low wi...

Page 30: ...IG is pulled high and maintains its level statue the module will wake up from PSM Power Saving Mode PON_TRIG is pulled down by default See document 3 for details about AT CPSMS 3 4 Extended Idle Mode...

Page 31: ...function will be inaccessible This mode can be set via the following ways Hardware W_DISABLE pin is pulled up by default Driving it low will let the module enter airplane mode Software AT CFUN fun pro...

Page 32: ...3 6 3 Requirements for Voltage Stability The power supply range of the module is from 2 2 V to 4 5 V Make sure the input voltage will never drop below 2 2 V Pin Name Pin No Description Min Typ Max Uni...

Page 33: ...pF and place these capacitors close to VBAT pins The main power supply from an external application must be a single voltage source and can be expanded to two sub paths with the star structure The wi...

Page 34: ...to use an open drain collector driver to control the PWRKEY Figure 6 Turn on the Module by Using Driving Circuit Another way to control the PWRKEY is by using a button directly When pressing the butt...

Page 35: ...Turn Off The following procedures can be used to turn off the module 3 8 1 Turn off the Module with PWRKEY When the module is in power on mode driving the PWRKEY low for at least 650 1500 ms then the...

Page 36: ...it The RESET_N signal is sensitive to interference so it is recommended to route the trace as short as possible and surround it with ground Table 10 Pin Definition of RESET_N 1 To avoid damaging the...

Page 37: ...the PWRKEY control circuit An open drain collector driver or button can be used to control RESET_N Figure 10 Reference Circuit of RESET_N with Driving Circuit Figure 11 Reference Circuit of RESET_N wi...

Page 38: ...TRIG BG950A GL BG951A GL modules provide one PON_TRIG pin which is used to wake up the module from PSM Table 11 Pin Definition of PON_TRIG A reference circuit is shown in the following figure Pin Name...

Page 39: ...the AT command that makes the module enter PSM mode drive PON_TRIG low can let the module enter PSM mode When you need to wake up the module from PSM mode PON_TRIG should be pulled up all the time ot...

Page 40: ...ET pin and both high level and low level detections are supported The function is disabled by default and refer to AT QSIMDET in document 3 for more details Pin Name Pin No I O Description Comment USI...

Page 41: ...d connector Figure 14 Reference Circuit of U SIM Interface with an 8 Pin U SIM Card Connector If U SIM card detection function is not needed keep USIM_DET disconnected A reference circuit for U SIM in...

Page 42: ...protection it is recommended to add a TVS diode array of which parasitic capacitance should not be more than 15 pF The 0 resistors should be added in series between the module and the U SIM card to fa...

Page 43: ...s differential pairs with ground surrounded The impedance of USB differential trace is 90 Do not route signal traces under crystals oscillators magnetic devices PCIe and RF signal traces It is importa...

Page 44: ...face The reference design is illustrated as follows Figure 17 Reference Circuit of PCM Interface Pin Name Pin No I O Description Comment PCM_CLK 4 DO PCM clock 1 8 V power domain If unused keep this p...

Page 45: ...ain UART request to send MAIN_DCD 38 DO Main UART data carrier detect MAIN_RI 39 DO Main UART ring indication Parameters Main UART Interface Debug UART Interface Auxiliary UART Interface Supported Bau...

Page 46: ...aces A voltage level translator should be used if the application is equipped with a 3 3 V UART interface The following figure shows a reference design of the main UART interface Figure 18 Reference C...

Page 47: ...To improve the accuracy of ADC the trace of ADC interfaces should be surrounded by ground Table 20 Pin Definition of ADC Interface 1 Transistor circuit solution is not suitable for applications with...

Page 48: ...en PSM is enabled the function of PSM_IND pin will be activated after the module is rebooted When PSM_IND is in high voltage level the module is in normal operation state When it is in low level the m...

Page 49: ...S The following tables describe pin definition and logic level changes in different network status Table 24 Working State of Network Connection Status Indication Pin Name Pin No I O Description Commen...

Page 50: ...STATUS The STATUS pin is an open drain output for indicating the module s operation status It will output high level when module is powered on successfully Table 25 Pin Definition of STATUS A referenc...

Page 51: ...aviors of MAIN_RI The MAIN_RI behavior can be changed via AT QCFG urc ri ring See document 2 for details Pin Name Pin No I O Description Comment MAIN_RI 39 DO Main UART ring indication 1 8 V power dom...

Page 52: ...ure the status of GPIO pins For more details about the AT command see document 2 Table 30 Pin Definition of GPIO Interface Pin Name Pin No I O Description Comment GRFC1 83 DO Generic RF controller 1 8...

Page 53: ...GL_Hardware_Design 52 89 GPIO5 66 DIO General purpose input output GPIO6 85 DIO General purpose input output GPIO7 86 DIO General purpose input output GPIO8 87 DIO General purpose input output GPIO9...

Page 54: ...Frequency of BG950A GL BG951A GL Pin Name Pin No I O Description Comment ANT_MAIN 60 AIO Main antenna interface 50 impedance Only passive antennas are supported Operating Frequency Transmit MHz Recei...

Page 55: ...TE FDD B17 10 704 716 734 746 MHz LTE FDD B18 815 830 860 875 MHz LTE FDD B19 830 845 875 890 MHz LTE FDD B20 832 862 791 821 MHz LTE FDD B25 1850 1915 1930 1995 MHz LTE FDD B26 814 849 859 894 MHz LT...

Page 56: ...Band Primary Diversity Sensitivity dBm Cat M1 3GPP Cat NB2 11 3GPP LTE LTE FDD B1 Supported TBD 102 3 TBD 107 5 LTE FDD B2 TBD 100 3 TBD 107 5 LTE FDD B3 TBD 99 3 TBD 107 5 LTE FDD B4 TBD 102 3 TBD 10...

Page 57: ...at M1 3GPP Cat NB2 14 3GPP LTE LTE FDD B1 Supported TBD 102 3 TBD 107 5 LTE FDD B2 TBD 100 3 TBD 107 5 LTE FDD B3 TBD 99 3 TBD 107 5 LTE FDD B4 TBD 102 3 TBD 107 5 LTE FDD B5 TBD 100 8 TBD 107 5 LTE F...

Page 58: ...a fully integrated global navigation satellite system solution that supports GPS GLONASS The module supports standard NMEA 0183 protocol and outputs NMEA sentences via debug UART interface data updat...

Page 59: ...S 1575 42 1 023 MHz GLONASS 1597 5 1605 8 MHz Parameter Description Conditions Typ Unit Sensitivity GNSS Cold start Autonomous TBD dBm Reacquisition Autonomous TBD Tracking Autonomous TBD TTFF GNSS Co...

Page 60: ...t the antenna port on which the module can keep on positioning for 3 minutes 2 Re acquisition sensitivity the lowest GNSS signal value at the antenna port on which the module can fix position again wi...

Page 61: ...ials dielectric constant the height from the reference ground to the signal layer H and the spacing between RF traces and grounds S Microstrip or coplanar waveguide is typically used in RF layout to c...

Page 62: ...The recommended trace angle is 135 There should be clearance under the signal pin of the antenna connector or solder joint The reference ground of RF traces should be complete Meanwhile adding some gr...

Page 63: ...ted as below Polarization RHCP or linear VSWR 2 Typ Passive antenna gain 0 dBi Active antenna noise figure 1 5 dB Active antenna gain 0 dBi Active antenna embedded LNA gain 17 dB LTE VSWR 2 Efficiency...

Page 64: ...Figure 29 Dimensions of the U FL R SMT Connector Unit mm U FL LP serial connectors listed in the following figure can be used to match the U FL R SMT Figure 30 Mechanicals of U FL LP Connectors The fo...

Page 65: ...LPWA Module Series BG950A GL BG951A GL_Hardware_Design 64 89 Figure 31 Space Factor of Mated Connector Unit mm For more details visit http www hirose com...

Page 66: ...ble 40 Absolute Maximum Ratings 7 2 Power Supply Ratings Table 41 The Module s Power Supply Ratings Parameter Min Max Unit VBAT_RF VBAT_BB 0 2 4 5 V USB_VBUS 0 3 6 0 V Voltage on Digital Pins 0 3 2 0...

Page 67: ...Sleep mode TBD mA Sleep mode USB disconnected LTE Cat M1 DRX 1 28 s TBD mA LTE Cat NB1 DRX 1 28 s TBD mA LTE Cat M1 e I DRX 81 92 s PTW 2 56 s DRX 1 28 s TBD mA LTE Cat NB1 e I DRX 81 92 s PTW 2 56 s...

Page 68: ...TBD mA LTE FDD B26 dBm TBD TBD mA LTE FDD B27 dBm TBD TBD mA LTE FDD B28 dBm TBD TBD mA LTE FDD B66 dBm TBD TBD mA LTE Cat NB1 data transfer GNSS OFF LTE FDD B1 dBm TBD TBD mA LTE FDD B2 dBm TBD TBD m...

Page 69: ...de USB disconnected LTE Cat M1 DRX 1 28 s TBD mA LTE Cat NB1 DRX 1 28 s TBD mA LTE Cat M1 e I DRX 81 92 s PTW 2 56 s DRX 1 28 s TBD mA LTE Cat NB1 e I DRX 81 92 s PTW 2 56 s DRX 1 28 s TBD mA Idle sta...

Page 70: ...DD B28 dBm TBD TBD mA LTE FDD B66 dBm TBD TBD mA LTE Cat NB1 data transfer GNSS OFF LTE FDD B1 dBm TBD TBD mA LTE FDD B2 dBm TBD TBD mA LTE FDD B3 dBm TBD TBD mA LTE FDD B4 dBm TBD TBD mA LTE FDD B5 d...

Page 71: ...a TBD mA Hot start Passive antenna TBD mA Lost state Passive antenna TBD mA Tracking AT CFUN 0 Instrument environment Passive antenna TBD mA Open sky Real network Passive antenna TBD mA Open sky Real...

Page 72: ...idity 45 7 5 Operating and Storage Temperatures Table 47 Operating and Storage Temperatures 18 Within operating temperature range the module is 3GPP compliant 19 Within extended operating temperature...

Page 73: ...n This chapter describes the mechanical dimensions of the module All dimensions are measured in millimeter mm and the dimensional tolerances are 0 2 mm unless otherwise specified 8 1 Mechanical Dimens...

Page 74: ...8 50 0 85 1 70 1 00 1 00 1 70 1 70 0 55 1 90 1 10 0 50 0 70 0 25 0 25 0 25 19 90 0 20 23 60 0 20 40x1 0 40x1 0 62x0 7 62x1 10 1 00 1 00 1 10 0 25 Figure 33 Module Bottom Dimensions Bottom View Unit m...

Page 75: ...5 1 70 0 85 1 70 5 95 5 95 4 25 4 25 7 65 7 65 9 70 9 60 1 70 0 85 2 55 4 25 5 95 4 25 5 95 1 70 1 70 2 50 2 50 1 10 1 10 1 10 1 10 1 10 0 70 1 00 1 00 0 25 0 25 0 25 0 20 0 15 Figure 34 Recommended F...

Page 76: ...5 Top Bottom Views of the Module 1 Images above are for illustration purpose only and may differ from the actual module For authentic appearance and label please refer to the module received from Quec...

Page 77: ...10 e g a drying cabinet 4 The module should be pre baked to avoid blistering cracks and inner layer separation in PCB under the following circumstances The module is not stored in Recommended Storage...

Page 78: ...heating it is strongly recommended that the module should be mounted only after reflow soldering for the other side of PCB has been completed The recommended reflow soldering thermal profile lead fre...

Page 79: ...al from flowing into the module 9 3 Packaging Specifications The module is packaged in tape and reel carriers One reel is 330 mm long and contains 500 modules The figures below show the package detail...

Page 80: ...LPWA Module Series BG950A GL BG951A GL_Hardware_Design 79 89 Figure 37 Tape Specifications Figure 38 Reel Specifications...

Page 81: ...G951A GL_Hardware_Design 80 89 Table 49 Packaging Specifications MOQ for MP Minimum Package 500 Minimum Package x 4 2000 pcs 500 pieces Size 370 mm 350 mm 56 mm N W TBD kg G W TBD kg Size 380 mm 250 m...

Page 82: ...uectel_BG770A GL BG95xA GL_GNSS_Application_Note 5 Quectel_RF_Layout_Application_Note 6 Quectel_Module_Secondary_SMT_Application_Note Abbreviation Description ADC Analog to Digital Converter Balun Bal...

Page 83: ...LPF Low Pass Filter LTE Long Term Evolution MO Mobile Originated MT Mobile Terminated PA Power Amplifier PAP Password Authentication Protocol PCB Printed Circuit Board PDU Protocol Data Unit PPP Poin...

Page 84: ...gh level Input Voltage VIHmin Minimum High level Input Voltage VILmax Maximum Low level Input Voltage VILmin Minimum Low level Input Voltage VImax Absolute Maximum Input Voltage VImin Absolute Minimum...

Page 85: ...bed in Part 2 1091 b this device is a mobile device And the following conditions must be met 1 This Modular Approval is limited to OEM installation for mobile and fixed applications only The antenna i...

Page 86: ...approval is required for all other operating configurations including portable configurations with respect to 2 1093 and different antenna configurations For this device OEM integrators must be provi...

Page 87: ...quired by this section may be included in the manual in that alternative form provided the user can reasonably be expected to have the capability to access information in that form This device complie...

Page 88: ...au moins 20 cm de toutes les personnes et ne doit pas tre colocalis ou fonctionner conjointement avec une autre antenne ou un autre metteur To comply with IC regulations limiting both maximum RF outp...

Page 89: ...meaning as follows Contains IC 10224A 2021BG950A or where 10224A 2021BG950A is the module s certification number Le produit h te doit tre correctement tiquet pour identifier les modules dans le produi...

Page 90: ...LPWA Module Series BG950A GL BG951A GL_Hardware_Design 89 89...

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