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Smart LTE Module Series

Smart EVB User Guide

Smart_ EVB_User_Guide

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3.7.2. Headphone Interface

The following figure shows the reference circuit design for headphone interface.

20K

ESD

MIC_GND

MIC2_P

HPH_L

HS_DET

HPH_R

HPH_REF

33pF

Module

R1

0R

6

3

4

5

2

1

33pF 33pF

C3

C4

C5

F3

F2

F1

D1 D2 D3 D4

F4

R2

R3
0R

R5

0R

F5

0R

33R

33R

C1

C2

NM

NM

R6

R4

R7 R8

10K10K

C6

100pF

Figure 18: Reference Circuit Design for Headphone Interface

The following figure shows the pin assignment of headphone interface.

1

2

3

4

5

6

Figure 19: Pin Assignment of Headphone Interface

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Summary of Contents for Smart EVB

Page 1: ...Smart EVB User Guide Smart LTE Module Series Rev Smart_EVB_User_Guide_V1 1 Date 2018 10 23 Status Released www quectel com ...

Page 2: ...ON 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 INFORMATION CONTAINED HEREIN AND DOES NOT ACCEPT ANY LIABILITY FOR ANY INJURY LOSS OR DAMAGE OF ANY KIND INCURRED BY USE OF OR RELIANCE UPON THE INFORMATION ALL INFORMATION SUPPLIED HEREIN IS SUBJECT TO CHANGE WITHOUT P...

Page 3: ...for the power supply of Smart EVB in Table 1 2 Updated the top view of Smart EVB in Figure 1 3 Added a comment for RESET in Chapter 2 2 4 Added the description of a separate battery interface in Chapter 3 1 5 Added the descriptions of touch panel interface LCM interface camera interfaces and SD card interface in Chapter 3 2 3 5 6 Added the description of flashlight vibrator and sensors in Chapter ...

Page 4: ...01 J302 20 3 5 SD Card Interface J502 22 3 6 USB Interface J602 23 3 7 Audio Interfaces J702 25 3 7 1 Loudspeaker Interface 25 3 7 2 Headphone Interface 26 3 7 3 Microphone and Earphone Interfaces 27 3 8 U SIM Interfaces J503 J504 28 3 9 UART Interfaces J901 J604 30 3 10 Switches and Buttons 31 3 11 Status Indication LEDs 33 3 12 Test Points 34 3 13 Flashlight 35 3 14 Vibrator 36 3 15 Sensors 37 4...

Page 5: ...Smart LTE Module Series Smart EVB User Guide Smart_ EVB_User_Guide 4 45 6 Appendix A Reference 45 ...

Page 6: ...CH PANEL INTERFACE 18 TABLE 5 PIN ASSIGNMENT OF MICRO USB INTERFACE 25 TABLE 6 PIN ASSIGNMENT OF HEADPHONE INTERFACE 27 TABLE 7 PIN ASSIGNMENT OF U SIM1 INTERFACE J503 29 TABLE 8 PIN ASSIGNMENT OF DEBUG UART PORT 31 TABLE 9 DESCRIPTION OF SWITCHES AND BUTTONS 32 TABLE 10 DESCRIPTION OF STATUS INDICATION LEDS 33 TABLE 11 DETAILS OF TEST POINTS 35 TABLE 12 RELATED DOCUMENTS 45 TABLE 13 TERMS AND ABB...

Page 7: ... REFERENCE CIRCUIT DESIGN FOR HEADPHONE INTERFACE 26 FIGURE 19 PIN ASSIGNMENT OF HEADPHONE INTERFACE 26 FIGURE 20 SKETCH OF AUDIO PLUG 27 FIGURE 21 REFERENCE CIRCUIT DESIGN FOR MICROPHONE AND EARPHONE INTERFACES 28 FIGURE 22 SIMPLIFIED INTERFACE SCHEMATIC FOR U SIM1 CARD CONNECTOR J503 28 FIGURE 23 PIN ASSIGNMENT OF U SIM1 CARD CONNECTOR J503 29 FIGURE 24 BLOCK DIAGRAM OF DEBUG UART PORT J604 30 F...

Page 8: ...es Smart EVB User Guide Smart_ EVB_User_Guide 7 45 1 Introduction This document describes the evaluation board Smart EVB for Quectel Smart module SC20 The smart evaluation board is an assistant tool to develop and test SC20 ...

Page 9: ...se consult 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 restrictions on the use of wireless devices when in hospitals clinics or other healthcare facilities Cellular terminals or mobiles operating over radio signals and cellular network cannot be guara...

Page 10: ...ards 2 95V and 1 8V Audio Interfaces Analog interfaces used for loudspeaker microphone earphone and headphone Camera Interfaces Support two cameras Main camera supports 8M pixels with 2 lane CSI interface Sub camera supports 2M pixels with 1 lane CSI interface LCM Interface One 5 inch 1080 720 HD resolution LCD 4 lane MIPI DSI interface for LCD Touch Panel Interface One capacitive touch panel SD C...

Page 11: ... 10 45 Switches 4 switches Flashlight Support a flashlight LED Vibrator A vibrator for testing the motor drive interface of the module Sensors Support three sensors including ALS PS G sensor Gyroscopic sensor and compass sensor Physical Characteristics Size 24cm 18cm ...

Page 12: ...J102 J101 Speaker S804 S802 Keypads S906 S909 S903 S904 S901 S908 S905 S902 S907 J703 J704 TP701 TP702 J701 J905 LED D806 D808 D805 D807 U701 MIC J403 J904 Figure 1 Smart EVB Interface Overview Table 2 Interfaces of Smart EVB Interface Reference No Description Power Supply Switches S801 Used to select DC DC power supply or battery power supply S802 Used to force the module to boot from USB port Tu...

Page 13: ...card connector Camera J302 Main camera connector support 8M CMOS sensor J301 Sub camera connector support 2M CMOS sensor LCM J402 Connector for LCM TP J403 ZIF connector for touch panel Sensors U205 Compass sensor U204 Ambient light sensor and proximity sensor U203 G sensor gyroscopic sensor Flashlight D202 Flashlight LED Vibrator U206 Vibrator for customers to test the motor driver interface UART...

Page 14: ...not work because the RESET interface on SC20 module is disabled by default Through enabling the RESET interface via software configuration the RESET button can work properly 2 3 Top and Bottom Views of Smart EVB Figure 2 Smart EVB Top View DC interface J807 Used to connect to DC power adapter NOTE ...

Page 15: ...art EVB Kit Accessories All accessories of the Smart EVB kit are listed as below Please contact the supplier if there is something missing USB to UART converter cable USB Flash drive RF cables Bolts and coupling nuts USB cable Wi Fi antenna Main antennas GNSS antenna Headphone Figure 4 Smart EVB Kit Accessories ...

Page 16: ... be used for diversity reception Items Description Quantity Cables USB to UART converter cable 1 USB cable 1 RF cables 4 Antennas Main antennas 1 2 Wi Fi antenna 1 GNSS antenna active 1 Audio Headphone 1 USB Flash Drive USB2 0 to RS232 driver USB driver etc 1 Others Bolts and coupling nuts for fixing Smart EVB 4 for each NOTE ...

Page 17: ...pply Interfaces S801 S803 The Smart EVB can be powered by an external 5 0V DC power adapter Connect the DC power adapter to the DC interface J807 and then the step down converter DC to DC converter which is used to provide the supply voltage required for operating the module A separate battery interface J801 is provided in case there are no other power options available The following figures show ...

Page 18: ...ouch panel interface J403 which is used for the connection between touch panel of LCM and EVB The following figure shows a reference design for touch panel interface TP_ RST TP_I2C_ SCL TP_I2C_ SDA TP_ INT 1 2 3 4 5 6 2 2K 2 2K LDO6_1V8 4 7uF 100nF Module TP_RST TP_SCL TP_SDA TP_INT GND VDD TP R2 R1 C1 C2 D1 D2 D3 D4 VCTP2V8 7 8 Figure 7 Reference Design for Touch Panel Interface U801 ...

Page 19: ...rovides a 5 inch 1080 x 720 high definition resolution LCD display for customers to test The following figure shows a reference circuit design for LCM interface of the Smart EVB Pin No Pin Name Description 1 TP_SDA I2C data signal of touch panel 2 TP_SCL I2C clock signal of touch panel 3 TP_RST Reset signal of touch panel 4 TP_INT Interrupt signal of touch panel 5 GND Ground 6 VDD 2 8V power suppl...

Page 20: ...PI_TDN3 GND MIPI_TDP2 MIPI_TDN2 GND MIPI_TDP1 MIPI_TDN1 GND LDO17_2V85 LDO6_1V8 LCM_LED LCM_ LED 1 2 3 4 5 6 7 8 9 10 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 MIPI_TDP0 MIPI_TDN0 GND MIPI_TCP MIPI_TCN 29 28 30 3 4 5 6 3 4 5 6 3 4 5 6 3 4 5 6 DSI0_LN1_M DSI0_LN1_P DSI0_LN0_M DSI0_LN0_P 1 2 3 4 5 6 11 1 2 1 2 1 2 1 2 0 1uF 4 7uF 1uF Module LCM FL1 FL2 FL3 FL4 FL5 EMI filter C3 C2 C1 NC GND GN...

Page 21: ...era Interfaces J301 J302 Smart EVB provides two camera interfaces 2 lane 1 lane with main camera and sub camera assembled The main camera uses an 8M pixels digital CMOS sensor with auto focusing function The sub camera uses a 2M pixels CMOS sensor The following figure shows a reference circuit design for camera interfaces ...

Page 22: ..._CLK_N LDO6_1V8 DVDD_1V2 LDO17_2V85 2 2K 2 2K Sub camera connector 2 2uF 0 1uF 1uF MCAM_RST EMI EMI VDD _AF _2V8 AVDD AF_VDD DVDD DOVDD 100nF LDO6_1V8 DOVDD 1uF 100nF 1 uF AVDD 0 0 EMI CSI1_LN _P CSI1_LN _N EMI CSI0_LN1_P CSI0_LN1_N EMI CSI0_LN0_P CSI0_LN0_N CSI0_CLK_P CSI0_CLK_N CAM_I2C_SDA CAM_I2C_SCL Figure 11 Reference Circuit Design for Camera Interfaces ...

Page 23: ...hematic for SD card interface on Smart EVB SD_CMD 120K NM_51K SD_DATA3 SD_DATA2 SD_CLK SD_DATA0 SD_DET SD_DATA1 P1 DAT2 P2 CD DAT3 P3 CMD P4 VDD P5 CLK P8 DAT1 GND P6 VSS P7 DAT0 DETECTIVE GND GND GND 1 2 3 4 5 6 7 8 9 10 11 12 13 SD_LDO11 33R 33R 33R 33R 33R 33R 1K 33pF SD_LDO12 Module R1 R2 R3 R4 R5 R6 NM_51K NM_10K NM_51K NM_51K R7 R8 R9 R10 R11 R12 R13 D1 D2 D3 D4 D5 D6 D7 D8 C1 C2 SD Card Con...

Page 24: ...2 The Smart EVB provides a Micro USB interface J602 which complies with USB 2 0 specifications and supports USB OTG function This interface is used for AT command communication data transmission and firmware upgrade The reference circuit design for Micro USB interface is shown in the following figure and the pin assignment of it is listed in the table below ...

Page 25: ...Smart LTE Module Series Smart EVB User Guide Smart_ EVB_User_Guide 24 45 Figure 15 Reference Circuit Design for USB Interface J602 1 234 5 Figure 16 Pin Assignment of Micro USB Interface ...

Page 26: ...eaker Interface Loudspeaker is soldered onto the Smart EVB via TP701 and TP702 The following figure shows the reference circuit design for loudspeaker interface SPK_P SPK_N 1 nF 1 nF Close to speaker GND GND ESD FB FB Smart EVB ESD Figure 17 Reference Circuit Design for Loudspeaker Interface Pin No Pin Name Description 1 USB_VBUS Used for USB detection and power supply of OTG equipment 2 USB_DM US...

Page 27: ... 20K ESD MIC_GND MIC2_P HPH_L HS_DET HPH_R HPH_REF 33pF Module R1 0R 6 3 4 5 2 1 33pF 33pF C3 C4 C5 F3 F2 F1 D1 D2 D3 D4 F4 R2 R3 0R R5 0R F5 0R 33R 33R C1 C2 NM NM R6 R4 R7 R8 10K10K C6 100pF Figure 18 Reference Circuit Design for Headphone Interface The following figure shows the pin assignment of headphone interface 1 2 3 4 5 6 Figure 19 Pin Assignment of Headphone Interface ...

Page 28: ...Ω HS_DET 5 Figure 20 Sketch of Audio Plug 3 7 3 Microphone and Earphone Interfaces Smart EVB provides a microphone interface and an earphone interface The following figure shows the reference circuit design for microphone and earphone interfaces Pin No Pin Name Description 1 MIC Positive microphone input 2 GND Dedicated GND for audio 3 R AUDIO Headphone right channel 4 DETECT Headphone detection 5...

Page 29: ...J504 The Smart EVB provides the following two U SIM card 2 95V or 1 8V connectors J503 U SIM1 card connector J504 U SIM2 card connector The following figure shows the simplified interface schematic for J503 U SIM card connector USIM _GND USIM _CLK USIM_ DATA USIM _ RST USIM _GND EVB J503 C7 C2 C3 Push Push USIM_VDD USIM_DATA USIM_RST USIM_CLK USIM _ PRE GND USIM_DETECT CD2 CD1 USIM_VPP C6 USIM _VD...

Page 30: ...The pin assignment of U SIM2 interface J504 is the same as that of U SIM1 interface J503 Pin No Pin Name I O Description C1 USIM_VDD O U SIM1 card power supply C2 USIM_RST O U SIM1 card reset signal C3 USIM_CLK O U SIM1 card clock signal C5 GND Ground C6 VPP Not connected C7 USIM_DATA I O Bi directional data line CD1 GND GND Ground CD2 USIM_DETECT I U SIM1 card detection NOTE ...

Page 31: ...or data transmission and AT command communication And the main debug UART interface is not used by default The following figure and table show the block diagram of debug UART port J604 and the pin assignment of it J 101 Module RS 232 Level Match 3 3V 1 8V Level Translator UART DB9 J 604 RS 232 3 3 V 1 8 V U 602 Figure 24 Block Diagram of Debug UART Port J604 1 2 3 4 5 6 7 8 9 Figure 25 Pin Assignm...

Page 32: ...hes and Buttons Smart EVB provides four switches S801 S802 S803 S804 and nine buttons S901 S902 S903 S904 S905 S906 S907 S908 S909 Pin No Pin Name I O Description 1 Not connected 2 RS232_TXD O Transmit data 3 RS232_RXD I Receive data 4 Not connected 5 RS232_GND Ground 6 Not connected 7 Not connected 8 Not connected 9 Not connected ...

Page 33: ...e 9 Description of Switches and Buttons Items Description S801 Used to select DCDC power supply or battery power supply S802 Used to force the module to boot from USB port Turned off by default S803 Used to power on off the module S804 Used to turn on off battery charger Turned off by default S901 Power key push button Used to turn on off the module S902 Snapshot button Used to snapshot photos S90...

Page 34: ...tus Indication LEDs Table 10 Description of Status Indication LEDs Used to enter home page S904 Volume up button Used to increase volume S905 Focus button Used to focus during shooting photos S906 Menu button S907 Volume down button Used to lower volume S908 Reset push button Used to reset the module S909 Back button Used to return to the previous page Items Description D806 Indicate the power sup...

Page 35: ... consists of 10 test points The details are shown in the following figure and table Figure 28 Pin Assignment of J904 Bright VBAT ON Extinct VBAT OFF D808 D805 Disabled by default D807 Indicate the network registration status of SC20 Bright Registered on Network Extinct Not Registered on Network ...

Page 36: ...SW ENF VIN AGND AGND Module U201 10 5 4 FLASH_ EN ENM GND TORCH _MODE 11 13 SW GND PGND GND VOUT D2 VOUT RSETF D1 RSETM GND 6 3 7 15 C2 75K R2 20K R1 10K R3 10K R4 1 0uH R5 VBAT L1 CATHODE 0R C1 97 90 Figure 29 Reference Circuit Design for Flashlight Interface Pin No Pin Name Description 1 GPIO_T2 GPIO_68 test point 2 VDD_3V3 3 3V power supply of EVB 3 GPIO_ T2 GPIO_69 test point 4 CTS_3V3 3 3V CT...

Page 37: ...Smart EVB provides an ERM type vibrator for customers to test the motor driver interface of SC20 module The following figures show the reference circuit design of the vibrator and its location on the board VIB_DRV_N 33pF Module VIB Motor VIB C2 1uF 1 VDD_3V3 GND C1 2 3 D1 28 Figure 31 Reference Circuit Design for Vibrator ...

Page 38: ...EVB User Guide Smart_ EVB_User_Guide 37 45 U206 Vibrator Figure 32 ERM Type Vibrator 3 15 Sensors Smart EVB provides three sensors for testing purpose as shown in the figure below Compass ALS PS G sensor gyroscopic Figure 33 Sensors ...

Page 39: ...ng are the procedures for powering on SC20 module 1 Connect the TE A to the connectors J101 and J102 on smart EVB 2 Connect the DC adapter and pull S801 to DC POWER state 3 Pull S803 to ON state and then D806 will be lighted 4 Press the S901 PWRKEY for at least 2s to turn on the module When the following interface is displayed on the LCD it means the booting has been completed Figure 34 LCD Displa...

Page 40: ...wing figure Figure 35 LCD Menu Display for Powering off Module 2 Choose Power off 3 The module will be powered off Another way is to press down S901 PWRKEY until the module is shut down 4 3 Communication via USB or UART Interface 4 3 1 Communication via USB Interface 1 Power on the module according to the procedures mentioned in Chapter 4 1 2 Connect Smart EVB and PC with USB cable through USB int...

Page 41: ... by Quectel to realize the communication between the smart module and the PC The following figure shows the QCOM configuration select correct COM port and set correct Baudrate such as 115200bps For more details about QCOM tool usage and configuration please refer to document 2 Figure 37 QCOM Configuration When Communicating via USB Interface ...

Page 42: ...the procedures mentioned in Chapter 4 1 After that the USB serial port number can be viewed through the PC Device Manager shown as the following figure Figure 38 USB Serial Port 3 Install and then use the QCOM tool provided by Quectel to realize the communication between the smart module and the PC The following figure shows the QCOM configuration select correct COM port USB Serial Port and set co...

Page 43: ...pen the firmware upgrade tool QFIL on PC and then power on SC20 module according to the procedures mentioned in Chapter 4 1 2 Click the SelectPort and select the USB port Qualcomm HS USB Diagnostics Modem 9091 COM24 3 Select Flat Build in Select Build Type option 4 Click Browse to select the firmware which needs to be upgraded in Select Programmer option 5 Click Load XML to select the XML which ne...

Page 44: ...Smart LTE Module Series Smart EVB User Guide Smart_ EVB_User_Guide 43 45 3 1 4 2 5 6 Figure 40 Firmware Upgrade Steps ...

Page 45: ...Smart LTE Module Series Smart EVB User Guide Smart_ EVB_User_Guide 44 45 5 EVB Accessories Assembly Figure 41 Smart EVB and Accessories Assembly ...

Page 46: ...ments Table 13 Terms and Abbreviations SN Document name Remark 1 Quectel_SC20_Hardware_Design SC20 hardware design 2 Quectel_QCOM_User_Guide User guide for QCOM tool Abbreviation Description EVB Evaluation Board OTG On The Go PC Personal Computer SIM Subscriber Identity Module USIM Universal Subscriber Identity Module ...

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