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LPWA Module Series

BG96 Hardware Design

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3.11. PCM and I2C Interfaces*

BG96 provides one Pulse Code Modulation (PCM) digital interface and one I2C interface. The following

table shows the pin definition of the two interfaces which can be applied on audio codec design.

Table 15: Pin Definition of PCM and I2C Interfaces

The following figure shows a reference design of PCM and I2C interfaces with an external codec IC.

PCM_IN

PCM_SYNC

PCM_CLK

I2C_SCL

I2C_SDA

Module

1.8V

BCLK

WCLK

ADC

SCL

SDA

MICBIAS

INP
INN

LOUTP

LOUTN

Codec

PCM_OUT

DAC

Figure 18: Reference Circuit of PCM Application with Audio Codec

“*” means under development.

Pin Name

Pin No.

I/O

Description

Comment

PCM_CLK

PCM clock output

1.8V power domain

PCM_SYNC

PCM frame synchronization

output

1.8V power domain

PCM_IN

PCM data input

1.8V power domain

PCM_OUT

PCM data output

1.8V power domain

I2C_SCL

I2C serial clock

Require external pull-up to 1.8V

I2C_SDA

I2C serial data

Require external pull-up to 1.8V

NOTE

Содержание BG96

Страница 1: ...BG96 Hardware Design LPWA Module Series Rev BG96_Hardware_Design_V1 4 Date 2019 08 15 Status Released www quectel com...

Страница 2: ...INFORMATION PROVIDED IS BASED UPON CUSTOMERS REQUIREMENTS QUECTEL MAKES EVERY EFFORT TO ENSURE THE QUALITY OF THE INFORMATION IT MAKES AVAILABLE QUECTEL DOES NOT MAKE ANY WARRANTY AS TO THE INFORMATI...

Страница 3: ...of sleep mode in Table 5 and Chapter 3 4 4 4 Added the description of ADC interfaces in Chapter 3 16 5 Updated the GNSS performance in Table 21 6 Updated the peak supply current values in Table 28 7 U...

Страница 4: ...l in Chapter 3 4 1 5 Updated DC characteristics of PWRKEY Table 4 Table 7 6 Updated DC characteristics of RESET_N Table 4 Table 8 7 Updated the description of power supply reference design in Chapter...

Страница 5: ...Mode PSM 26 3 4 3 Extended Idle Mode DRX e I DRX 26 3 4 4 Sleep Mode 27 3 4 4 1 UART Application 27 3 5 Power Supply 28 3 5 1 Power Supply Pins 28 3 5 2 Decrease Voltage Drop 28 3 5 3 Monitor the Pow...

Страница 6: ...for Antenna Installation 54 6 Electrical Reliability and Radio Characteristics 57 6 1 Absolute Maximum Ratings 57 6 2 Power Supply Ratings 57 6 3 Operation and Storage Temperatures 58 6 4 Current Con...

Страница 7: ...E 18 PIN DEFINITION OF STATUS 43 TABLE 19 DEFAULT BEHAVIORS OF RI 44 TABLE 20 PIN DEFINITION OF USB_BOOT INTERFACE 44 TABLE 21 PIN DEFINITION OF ADC INTERFACES 45 TABLE 22 CHARACTERISTICS OF ADC INTER...

Страница 8: ...BG96 Hardware Design BG96_Hardware_Design 7 79 TABLE 42 TERMS AND ABBREVIATIONS 73 TABLE 43 DESCRIPTION OF DIFFERENT CODING SCHEMES 76 TABLE 44 GPRS MULTI SLOT CLASSES 77 TABLE 45 EDGE MODULATION AND...

Страница 9: ...CUIT WITH TRANSISTOR CIRCUIT 40 FIGURE 18 REFERENCE CIRCUIT OF PCM APPLICATION WITH AUDIO CODEC 41 FIGURE 19 REFERENCE CIRCUIT OF NETLIGHT 42 FIGURE 20 REFERENCE CIRCUIT OF STATUS 43 FIGURE 21 REFEREN...

Страница 10: ...plications This document helps customers quickly understand the interface specifications electrical and mechanical details as well as other related information of BG96 To facilitate application design...

Страница 11: ...t the airline staff for more restrictions on the use of wireless devices on boarding the aircraft Wireless devices may cause interference on sensitive medical equipment so please be aware of the restr...

Страница 12: ...work 3 3 BG96 GSM only supports Packet Switch 4 4 LTE FDD B25 is supported on BG96 of R1 2 hardware version 5 means under development With a compact profile of 26 5mm 22 5mm 2 3mm BG96 can meet almost...

Страница 13: ...eatures Support LTE Cat M1 and LTE Cat NB1 Support 1 4MHz RF bandwidth for LTE Cat M1 Support 200KHz RF bandwidth for LTE Cat NB1 Support SISO in DL direction Cat M1 Max 375Kbps DL 375Kbps UL Cat NB1...

Страница 14: ...1 Used for data transmission and AT command communication 115200bps by default The default frame format is 8N1 8 data bits no parity 1 stop bit Support RTS and CTS hardware flow control UART2 Used for...

Страница 15: ...d exceed the specified tolerances When the temperature returns to the normal operating temperature levels the module will meet 3GPP specifications again 2 3 Functional Diagram The following figure sho...

Страница 16: ...on Board In order to help customers develop applications conveniently with BG96 Quectel supplies the evaluation board EVB USB to RS 232 converter cable USB data cable earphone antenna and other periph...

Страница 17: ...t can be connected to customers cellular application platforms The following sub chapters will provide detailed description of interfaces listed below Power supply U SIM interface USB interface UART i...

Страница 18: ..._EXT DTR GND USIM_CLK USIM_DATA USIM_RST USIM_VDD RI DCD CTS TXD RXD VBAT_BB VBAT_BB USIM_GND GND RESERVED 31 30 29 28 27 26 23 22 21 20 19 10 9 USB_DP USB_VBUS ADC1 GND RESERVED RESERVED RTS I2C_SCL...

Страница 19: ...tables show the pin definition and description of BG96 Table 3 Definition of I O Parameters Table 4 Pin Description Type Description AI Analog Input AO Analog Output DI Digital Input DO Digital Outpu...

Страница 20: ...drop in the Qualcomm chipset RESET_N 17 DI Reset the module Vnorm 0 8V VILmax 0 5V If unused keep this pin open Status Indication Pin Name Pin No I O Description DC Characteristics Comment STATUS 20 D...

Страница 21: ...ed keep this pin open USIM_VDD 43 PO Power supply for U SIM card For 1 8V U SIM Vmax 1 9V Vmin 1 7V For 3 0V U SIM Vmax 3 05V Vmin 2 7V IOmax 50mA Either 1 8V or 3 0V is supported by the module automa...

Страница 22: ...unused keep this pin open CTS 36 DO Clear to send VOLmax 0 45V VOHmin 1 35V 1 8V power domain If unused keep this pin open RTS 37 DI Request to send VILmin 0 3V VILmax 0 6V VIHmin 1 2V VIHmax 2 0V 1 8...

Страница 23: ...NC 5 DO PCM frame synchronization output VOLmax 0 45V VOHmin 1 35V 1 8V power domain If unused keep this pin open PCM_IN 6 DI PCM data input VILmin 0 3V VILmax 0 6V VIHmin 1 2V VIHmax 2 0V 1 8V power...

Страница 24: ...mode If unused keep this pin open AP_READY 19 DI Application processor sleep state detection VILmin 0 3V VILmax 0 6V VIHmin 1 2V VIHmax 2 0V 1 8V power domain If unused keep this pin open USB_BOOT 75...

Страница 25: ...Table 5 Overview of Operating Modes ADC1 2 AI General purpose analog to digital converter interface Voltage range 0 3V to 1 8V If unused keep this pin open ADC0 24 AI General purpose analog to digital...

Страница 26: ...being available for mobile terminating data and or network originated procedures within a certain delay dependent on the DRX cycle value Airplane Mode AT CFUN 4 command or W_DISABLE pin can set the mo...

Страница 27: ...ating an Active Time value to the module If the module wants to change the Active Time value e g when the conditions are changed in the module the module consequently requests the value it wants in th...

Страница 28: ...the EPC rejected its request or because the request was received by EPC not supporting e I DRX the UE shall apply its regular discontinuous reception If e I DRX is supported by the network then it ca...

Страница 29: ...arate voltage domains for VBAT Two VBAT_RF pins for module s RF part Two VBAT_BB pins for module s baseband part The following table shows the details of VBAT pins and ground pins Table 6 VBAT and GND...

Страница 30: ...n be expanded to two sub paths with star structure The width of VBAT_BB trace should be no less than 0 5mm and the width of VBAT_RF trace should be no less than 2mm In principle the longer the VBAT tr...

Страница 31: ...level PWRKEY pin can be released A simple reference circuit is illustrated in the following figure Turn on pulse PWRKEY 4 7K 47K 500ms 10nF Figure 6 Turn on the Module Using Driving Circuit Another wa...

Страница 32: ...SET_N STATUS DO Inactive Active USB NOTE Inactive Active URAT 4 8s 4 2s 4 9s Figure 8 Power on Timing 1 Make sure that VBAT is stable before pulling down PWRKEY pin and keep the interval no less than...

Страница 33: ...0ms the module will execute power off procedure after the PWRKEY is released The power off scenario is illustrated in the following figure VBAT PWRKEY 2s 650ms RUNNING Power down procedure OFF Module...

Страница 34: ...n open drain collector driver or button can be used to control the RESET_N Reset pulse RESET_N 4 7K 47K 150 460ms Figure 10 Reference Circuit of RESET_N by Using Driving Circuit RESET_N S2 Close to S2...

Страница 35: ...on PWRKEY and RESET_N pins 3 8 U SIM Interface The U SIM interface circuitry meets ETSI and IMT 2000 requirements Both 1 8V and 3 0V U SIM cards are supported Table 9 Pin Definition of U SIM Interfac...

Страница 36: ...SIM_PRESENCE 0R 0R 0R VDD_EXT 51K 100nF U SIM Card Connector GND GND 33pF 33pF 33pF VCC RST CLK IO VPP GND GND USIM_VDD 15K Figure 13 Reference Circuit of U SIM Interface with an 8 Pin U SIM Card Conn...

Страница 37: ...a TVS diode array with parasitic capacitance not exceeding 15pF In order to facilitate debugging it is recommended to reserve series resistors for the U SIM signals of the module The 33pF capacitors...

Страница 38: ...ta line signal L1 R3 R4 components must be placed close to the module and also these resistors should be placed close to each other The extra stubs of trace must be as short as possible The following...

Страница 39: ...sed for outputting GNSS data and NMEA sentences The following tables show the pin definition of the three UART interfaces Table 11 Pin Definition of UART1 Interface AT IPR command can be used to set t...

Страница 40: ...omers application is equipped with a 3 3V UART interface The voltage level translator TXS0108EPWR provided by Texas Instruments is recommended The following figure shows a reference design Pin Name Pi...

Страница 41: ...ti com for more information Another example with transistor translation circuit is shown as below For the design of circuits in dotted lines please refer to that of circuits in solid lines but please...

Страница 42: ...external codec IC PCM_IN PCM_SYNC PCM_CLK I2C_SCL I2C_SDA Module 1 8V 4 7K 4 7K BCLK WCLK ADC SCL SDA BIAS MICBIAS INP INN LOUTP LOUTN Codec PCM_OUT DAC Figure 18 Reference Circuit of PCM Application...

Страница 43: ...n Definition of NETLIGHT Table 17 Working State of NETLIGHT A reference circuit is shown in the following figure 4 7K 47K VBAT 2 2K Module NETLIGHT Figure 19 Reference Circuit of NETLIGHT Pin Name Pin...

Страница 44: ...4 7K 47K VBAT 2 2K Module STATUS Figure 20 Reference Circuit of STATUS 3 14 Behaviors of RI AT QCFG risignaltype physical command can be used to configure RI behavior No matter on which port URC is p...

Страница 45: ...the module to boot from USB port for firmware upgrade Table 20 Pin Definition of USB_BOOT Interface The following figure shows a reference circuit of USB_BOOT interface Module USB_BOOT VDD_EXT 10K Tes...

Страница 46: ...s please refer to document 2 In order to improve the accuracy of ADC voltage values the trace of ADC should be surrounded by ground Table 21 Pin Definition of ADC Interfaces The following table descri...

Страница 47: ...nput and output GPIO interfaces AT QCFG GPIO command can be used to configure corresponding GPIO pin s status For more details about the AT command please refer to document 2 Table 23 Pin Definition o...

Страница 48: ...interface by default By default BG96 GNSS engine is switched off It has to be switched on via AT command For more details about GNSS engine technology and configurations please refer to document 3 4 2...

Страница 49: ...start command 4 3 Layout Guidelines The following layout guidelines should be taken into account in customers designs Maximize the distance between the GNSS antenna and the main antenna Digital circu...

Страница 50: ...le 26 Pin Definition of Main Antenna Interface 5 1 2 Operating Frequency Table 27 BG96 Operating Frequency Pin Name Pin No I O Description Comment ANT_MAIN 60 IO Main antenna interface 50 characterist...

Страница 51: ...rformance and the type matching components R1 C1 C2 should be placed as close to the antenna as possible The capacitors are not mounted by default ANT_MAIN R1 0R C1 Module Main antenna NM C2 NM Figure...

Страница 52: ...nstant height from the reference ground to the signal layer H and the clearance between RF traces and grounds S Microstrip or coplanar waveguide is typically used in RF layout to control characteristi...

Страница 53: ...ssible and all the right angle traces should be changed to curved ones There should be clearance under the signal pin of the antenna connector or solder joint The reference ground of RF traces should...

Страница 54: ...Interface 1 An external LDO can be selected to supply power according to the active antenna requirement 2 If the module is designed with a passive antenna then the VDD circuit is not needed 5 3 Antenn...

Страница 55: ...s used for antenna connection it is recommended to use the U FL R SMT connector provided by HIROSE Antenna Type Requirements GNSS 1 Frequency range 1559MHz 1609MHz Polarization RHCP or linear VSWR 2 T...

Страница 56: ...re Design BG96_Hardware_Design 55 79 Figure 28 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 29 Mec...

Страница 57: ...s BG96 Hardware Design BG96_Hardware_Design 56 79 The following figure describes the space factor of mated connector Figure 30 Space Factor of Mated Connector Unit mm For more details please visit htt...

Страница 58: ...g table Table 31 Absolute Maximum Ratings 6 2 Power Supply Ratings Table 32 Power Supply Ratings Parameter Min Max Unit VBAT_BB 0 5 6 V VBAT_RF 1 2 6 V USB_VBUS 0 3 5 5 V Voltage at Digital Pins 0 3 2...

Страница 59: ...effects on radio spectrum and no harm to radio network Only one or more parameters like Pout might reduce in their value and exceed the specified tolerances When the temperature returns to the normal...

Страница 60: ...8s Instrument 15 mA e I DRX 20 48s Instrument 15 mA e I DRX 20 48s Instrument 15 mA Real 2G Network 15 mA LTE Cat M1 Data Transfer GNSS OFF LTE FDD B1 23 31dBm 220 mA LTE FDD B2 23 05dBm 208 mA LTE FD...

Страница 61: ...B13 22 9dBm 167 mA LTE FDD B18 23 1dBm 159 mA LTE FDD B19 22 9dBm 155 mA LTE FDD B20 22 7dBm 157 mA LTE FDD B25 23dBm 165 mA LTE FDD B26 TBD TBD mA LTE FDD B28 22 5dBm 163 mA GPRS Data Transfer GNSS O...

Страница 62: ...3UL 2DL 26 11dBm 312 mA GSM850 2UL 3DL 26 57dBm 224 mA GSM850 1UL 4DL 26 92dBm 136 mA EGSM900 4UL 1DL 25 92dBm 391 mA EGSM900 3UL 2DL 26 11dBm 301 mA EGSM900 2UL 3DL 26 16dBm 217 mA EGSM900 1UL 4DL 2...

Страница 63: ...FDD B25 is supported on BG96 of R1 2 hardware version Table 35 GNSS Current Consumption 6 5 RF Output Power The following table shows the RF output power of BG96 module Table 36 BG96 RF Output Power...

Страница 64: ...ot Supported 107 0 102 7 112 5 107 5 LTE FDD B2 106 7 100 3 112 5 107 5 LTE FDD B3 106 8 99 3 113 107 5 LTE FDD B4 106 9 102 3 112 5 107 5 LTE FDD B5 107 0 100 8 114 107 5 LTE FDD B8 107 3 99 8 113 10...

Страница 65: ...tions 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 incorporate...

Страница 66: ...ons This chapter describes the mechanical dimensions of the module All dimensions are measured in mm and the dimensional tolerances are 0 05mm unless otherwise specified 7 1 Mechanical Dimensions of t...

Страница 67: ...LPWA Module Series BG96 Hardware Design BG96_Hardware_Design 66 79 Figure 32 Module Bottom Dimensions Bottom View...

Страница 68: ...ootprint Figure 33 Recommended Footprint Top View 1 For easy maintenance of the module please keep about 3mm between the module and other components on the host PCB 2 All reserved pins must be kept op...

Страница 69: ...ardware_Design 68 79 7 3 Top Bottom View of the Module Figure 34 Top View of the Module Figure 35 Bottom View of the Module These are renderings of BG96 module For authentic appearance please refer to...

Страница 70: ...e factory environment of 30 C 60 RH Stored at 10 RH 3 Devices require baking before mounting if any circumstance below occurs When the ambient temperature is 23 C 5 C and the humidity indication card...

Страница 71: ...the peak reflow temperature is 238 245 C and the absolute maximum reflow temperature is 245 C To avoid damage to the module caused by repeated heating it is strongly recommended that the module should...

Страница 72: ...the devices are ready to be soldered onto the application The reel is 330mm in diameter and each reel contains 250 modules The following figures show the packaging details measured in mm Figure 37 Ta...

Страница 73: ...tion of feed Cover tape 13 100 44 5 0 20 0 00 48 5 Figure 38 Reel Dimensions Table 40 Reel Packaging Model Name MOQ for MP Minimum Package 250pcs Minimum Package x 4 1000pcs BG96 250pcs Size 370mm 350...

Страница 74: ...mands_Manual BG96 GNSS AT Commands Manual 4 Quectel_RF_Layout_Application_Note RF Layout Application Note 5 Quectel_Module_Secondary_SMT_User_Guide Module Secondary SMT User Guide Abbreviation Descrip...

Страница 75: ...put Inorm Normal Current LED Light Emitting Diode LNA Low Noise Amplifier LTE Long Term Evolution MO Mobile Originated MS Mobile Station GSM engine MT Mobile Terminated PAP Password Authentication Pro...

Страница 76: ...Maximum Input High Level Voltage Value VIHmin Minimum Input High Level Voltage Value VILmax Maximum Input Low Level Voltage Value VILmin Minimum Input Low Level Voltage Value VImax Absolute Maximum In...

Страница 77: ...mes Table 43 Description of Different Coding Schemes Scheme CS 1 CS 2 CS 3 CS 4 Code Rate 1 2 2 3 3 4 1 USF 3 3 3 3 Pre coded USF 3 6 6 12 Radio Block excl USF and BCS 181 268 312 428 BCS 40 16 16 16...

Страница 78: ...e first number indicates the amount of downlink timeslots while the second number indicates the amount of uplink timeslots The active slots determine the total number of slots the GPRS device can use...

Страница 79: ...rdware Design BG96_Hardware_Design 78 79 15 5 5 NA 16 6 6 NA 17 7 7 NA 18 8 8 NA 19 6 2 NA 20 6 3 NA 21 6 4 NA 22 6 4 NA 23 6 6 NA 24 8 2 NA 25 8 3 NA 26 8 4 NA 27 8 4 NA 28 8 6 NA 29 8 8 NA 30 5 1 6...

Страница 80: ...SK 13 4kbps 26 8kbps 53 6kbps CS 3 GMSK 15 6kbps 31 2kbps 62 4kbps CS 4 GMSK 21 4kbps 42 8kbps 85 6kbps MCS 1 GMSK C 8 80kbps 17 60kbps 35 20kbps MCS 2 GMSK B 11 2kbps 22 4kbps 44 8kbps MCS 3 GMSK A 1...

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