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CLM920_AC3 Module Hardware Usage Guide

Shanghai Yuge Information Technology co., LTD

- 37 -

converter interface 1

resolution12bits

45

ADC0

Analog to digital
converter interface 0

0.3

1.3V

ADC resolution
12bits

3.14 RF interface

The CLM920 AC3 module provides two antenna interfaces, one main set antenna

interface, which is responsible for the 4G and 3G signals of the transceiver module, and one
diversity antenna interface. It is responsible for receiving 4G and 3G signals. The signal
degradation caused by multi-path and high-speed movement can be passed. Adding a
diversity antenna enhances the signal. The impedance of the two antenna interfaces is 50
ohms. 4G recommends connecting diversity antennas to limit high-speed movement and
signal degradation caused by multipath.

Table 3-24 Antenna interface pin definition

Pin

Name

I/O

Description

Remarks

49

ANT_MAIN

IO

Main antenna interface

50 ohm characteristic
impedance

35

ANT_DIV

AI

Diversity antenna interface 50 ohm characteristic

impedance

3.14.1 Antenna matching circuit

The 49-pin of the CLM920 AC3 is the main set antenna interface. To facilitate the

debugging of the antenna, a

π

-type matching circuit needs to be added to the main board,

and the 50-ohm impedance line is taken.

The 35-pin of the CLM920 AC3 is a diversity antenna interface. To facilitate antenna

debugging, a

π

-type matching circuit needs to be added to the motherboard, and a 50-ohm

impedance line is taken.

Recommended circuit as shown below

：

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...
42
43
44
45
46
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Содержание CLM920_AC3

Страница 1: ...duct name CLM920_AC3 Module Hardware Usage Guide Number of pages 59 Version V1 0 Date 2019 3 21 CLM920_AC3 Module Hardware Usage Guide V1 0 Shanghai Yuge Information Technology co LTD All rights reser...

Страница 2: ...CLM920_AC3 Module Hardware Usage Guide Shanghai Yuge Information Technology co LTD 2 Revise history Version Date Description Author V1 0 20190321 Initialized version David...

Страница 3: ...er supply design 16 3 3 2 Power reference circuit 17 3 3 3 VDD_EXT Voltage output 19 3 4 Switching machine reset mode 19 3 4 1 Module boot 19 3 4 2 Boot timing 20 3 4 3 Module shutdown 21 3 4 4 Reset...

Страница 4: ...4 4 Conducted receiving sensitivity and transmit power 42 4 5 Antenna requirements 43 4 6 Power consumption characteristics 44 Chapter 5 Interface Electrical Characteristics 46 5 1 Chapter overview 46...

Страница 5: ...rcuit 18 Figure 3 6 Startup timing diagram 20 Figure 3 7 Open set drive start reference circuit 21 Figure 3 8 Button start reference circuit 21 Figure 3 9 Shutdown timing diagram 22 Figure 3 10 Reset...

Страница 6: ...ont view and side view of the module unit mm 50 Figure 6 3 Bottom view of the module unit mm 51 Figure 6 4 Recommended module package unit mm 52 Figure 7 1 Reflow soldering temperature graph 54 Table...

Страница 7: ...37 Table 4 1 RF frequency table 41 Table 4 2 Test instruments 41 Table 4 3 3G RF Specifications 42 Table 4 4 4G RF sensitivity indicators 42 Table 4 5 4G RF transmit power specifications 43 Table 4 6...

Страница 8: ...e Usage Guide Shanghai Yuge Information Technology co LTD 8 Table 8 1 Abbreviations 55 Table 8 2 Maximum HSDPA rate 56 Table 8 3 Maximum HSUPA rate 57 Table 8 4 LTE FDD DL maximum rate 57 Table 8 5 LT...

Страница 9: ...ss solution product CLM920 AC3 module It is intended to describe the hardware components and functional characteristics of the module solution application interface definition and usage instructions e...

Страница 10: ...s 10 Embedded operating system such as Android 4 0 or higher The CLM920 AC3 module can be used in the following applications Car Equipment Wireless POS machine Wireless advertising multimedia Remote m...

Страница 11: ...nal codec chip Supports 8 bit A law U law and 16 bit linear encoding formats Support short frame mode Support main mode SDIO interface External WLAN chip interface voltage 1 8V Compliant with SDIO 3 0...

Страница 12: ...P HTTP NITZ CMUX NDIS NTP HTTPS PING protocol Antenna interface MAIN 1 DIV 1 Characteristic impedance 50 Virtual network card Support USB virtual network card Temperature range Normal operating temper...

Страница 13: ...Shanghai Yuge Information Technology co LTD 6 Memory unit RF transceiver unit Module interface unit The functional block diagram of the CLM920 AC3 LCC module is shown below Figure 2 1 Functional bloc...

Страница 14: ...This chapter mainly describes the interface definition and application of this module Contains the following sections 144 pin pin distribution map Interface definition Power interface USB interface U...

Страница 15: ...re 3 1 CLM920_AC3 module pin distribution diagram TOP surface perspective The modules Pin85 Pin112 are heat dissipating pads It is recommended to ground the design during design All RESERVED and unuse...

Страница 16: ...MODE 6 NET_STATUS 7 VDD_EXT 8 GND 9 GND 10 GND 11 DBG_RXD 12 DBG_TXD 13 SIM_PRESENCE 14 USIM_VDD 15 USIM_DATA 16 USIM_CLK 17 USIM_RST 18 RESERVED 19 GND 20 RESET_N 21 PWRKEY 22 GND 23 RESERVED 24 PCM_...

Страница 17: ...70 USB_DM 71 USB_VBUS 72 GND 73 RESERVED 74 RESERVED 75 RESERVED 76 RESERVED 77 RESERVED 78 RESERVED 79 RESERVED 80 RESERVED 81 RESERVED 82 RESERVED 83 RESERVED 84 RESERVED 85 GND 86 GND 87 GND 88 GN...

Страница 18: ...d power input 117 RESERVED 118 RESERVED 119 RESERVED 120 RESERVED 121 RESERVED 122 RESERVED 123 RESERVED 124 RESERVED 125 RESERVED 126 RESERVED 127 RESERVED 128 RESERVED 129 RESERVED 130 RESERVED 131...

Страница 19: ...n Default low active 20 RESET_N DI Module reset pin internally pulled up to VDD_EXT Low level reset module USB interface Pin Definition IO Functional description Remarks 71 USB_VBUS PI USB insertion d...

Страница 20: ...1 8V please hang when not in use USIM interface Pin Definition IO Functional description Remarks 13 SIM_PRESEN CE DI USIM card hot plug detection please hang when not in use 14 USIM_VDD PO USIM card...

Страница 21: ...ata 1 8V voltage domain 26 PCM_SYNC IO PCM frame sync signal 1 8V voltage domain 27 PCM_CLK IO PCM clock pulse 1 8V voltage domain I2C interface Pin Definition IO Functional description Remarks 41 SCL...

Страница 22: ...3V 45 ADC0 AI 12bits resolution universal analog to digital conversion Input range 0 1 3V RF interface Pin Definition IO Functional description Remarks 35 ANT_DIV AI Diversity antenna 50 characteristi...

Страница 23: ...the module s operating voltage drop causes the VBAT supply voltage to be too low or the supply current is insufficient the module may shut down or restart Therefore in order to reduce the power fluct...

Страница 24: ...r supply design 3 3 2 Power reference circuit In actual design the power circuit can be designed using a switching DC power supply or a linear LDO power supply and then the PMOS transistor is used to...

Страница 25: ...e It is recommended to add 3 ceramic capacitors 33pF 10pF 100nF to the power pin input and place them near the VBAT pin The minimum operating voltage of the module is 3 3V Since the data is transmitte...

Страница 26: ...can also be used as an external power supply such as a level shifting chip 3 4 Switching machine reset mode 3 4 1 Module boot The 21 pin of the CLM920 AC3 module is the boot pin The module can be powe...

Страница 27: ...status 22 ms Ton usb Boot time according to usb status 10 s Ton uart Boot time according to uart status 6 s VIH PWRKEY Input high level 0 6 0 8 1 8 V VIL PWRKEY Input low level 0 3 0 0 5 V It is recom...

Страница 28: ...dule shutdown The CLM920 AC3 module supports the following three shutdown modes Table 3 7 Module shutdown mode Shutdown mode Shutdown condition Description Low voltage shutdown The supply voltage is t...

Страница 29: ...n timing diagram 3 4 4 Reset control The CLM920 AC3 module PIN20 is a reset pin The application detects that the module is abnormal When the software does not respond the module can be reset Pull the...

Страница 30: ...Figure 3 11 Reset timing diagram The CLM920 AC3 module supports AT command reset and the AT command is at cfun 1 1 to restart the module Detailed instructions can be found in the CLM920 AC3 AT Command...

Страница 31: ...ial signal The module acts as a USB slave device and supports USB sleep and wake up mechanisms USB interface application reference circuit is as follows Figure 3 12 USB connection design circuit diagr...

Страница 32: ...port Main serial port The serial port can realize AT interactive instructions print program log information and interact with peripheral data The module s serial port baud rate can be set to 4800 960...

Страница 33: ...ethods Figure 3 13 Four wire serial port design If you need to use a 2 wire serial port you can refer to the following serial port design Figure 3 14 Two wire serial port design The serial port of the...

Страница 34: ...pin definitions Pin Signal name I O Description Param eter Level value V Rema rks Min Typical Max 11 DBG_RXD DI UART data reception VIH 1 2 1 8 2 VIL 0 3 0 6 12 DBG_TXD DO UART data transmission VOH...

Страница 35: ...supply is provided by the module s internal power manager and supports 1 8V 3 0V voltage Table 3 13 SIM card signal definition Pin Name I O Descri ption Para meter Level value V Remarks Min Typical M...

Страница 36: ...e is recommended to use ONSEMI s SMF15C device for ESD protection The peripheral circuit components should be placed close to the card holder and the SIM card holder is close to the module layout The...

Страница 37: ...on the signal line path The ground of the USIM deck and the ground of the module should maintain good connectivity 3 7 2 USIM_ PRESENCE Hot Swap Reference Design The CLM920 AC3 module supports the ho...

Страница 38: ...5 General GPIO Pin Definitions Pin Signal name I O Description Para meter Level value V Remarks Min Typical Max 1 WAKEU P_IN DI Sleep mode control VIH 1 2 1 8 2 VIL 0 3 0 6 2 AP_REA DY DI Sleep state...

Страница 39: ...I O Description 5 NET_MODE DO 4G network indication function developing 6 NET_STATUS DO Network indication 61 STATUS DO Module status indication Table 3 17 Network operation status indication status...

Страница 40: ...and 16 bit linear short frame coding format Interface signal PCM_SYNC is 8kHZ PCM_CLK is 2048kHZ Table 3 19 PCM pin definition Pin Name I O Description para meter Level value V Rema rks Min Typical Ma...

Страница 41: ...dule Hardware Usage Guide Shanghai Yuge Information Technology co LTD 34 Figure 3 20 PCM short frame mode timing diagram PCM to analog voice recommendation circuit is as follows Figure 3 21 PCM to ana...

Страница 42: ...n Name I O Description Parame ter Level value V Rema rks Min Typical Max 41 I2C_SCL DO I2C bus clock output VOH 1 35 1 8 2 VOL 0 0 45 42 I2C_SDA IO I2C bus data input and output VOH 1 35 1 8 2 VOL 0 0...

Страница 43: ...ast and the Layout trace must conform to the SDIO3 0 specification The length of the signal line should be less than 50mm the spacing of the signal line should be 2 times the line width and cover the...

Страница 44: ...na interfaces is 50 ohms 4G recommends connecting diversity antennas to limit high speed movement and signal degradation caused by multipath Table 3 24 Antenna interface pin definition Pin Name I O De...

Страница 45: ...e main set antenna and the diversity antenna respectively The antenna interface must be a 50 ohm characteristic impedance trace The main antenna and the diversity antenna are distributed reasonably to...

Страница 46: ...rom digital signal lines power supplies and other interference signals The antenna impedance traces need to be three dimensionally packaged and the ground holes are added on both sides of the trace to...

Страница 47: ...dule Hardware Usage Guide Shanghai Yuge Information Technology co LTD 40 Figure 3 26 Complete structure of the strip line Figure 3 27 Reference ground is the third layer PCB microstrip transmission li...

Страница 48: ...tream frequency Duplex mode LTE B1 1920MHz 1980MHz 2110MHz 2170MHz FDD LTE B3 1710MHz 1785MHz 1805MHz 1880MHz FDD LTE B5 824MHz 849MHz 869MHz 894MHz FDD LTE B8 880MHz 915MHz 925MHz 960MHz FDD LTE B34...

Страница 49: ...3G RF Specifications mode Upstream Down power Receiving sensitivity WCDMA B1 1920MHz 198 0MHz 2110MHz 217 0MHz 23 2 2dBm 109dBm WCDMA B5 824MHz 849 MHz 869MHz 894M H 23 2 2dBm 109dBm WCDMA B8 880MHz 9...

Страница 50: ...to 25 22 23 24 LTE B38 21 to 25 22 23 24 LTE B39 21 to 25 22 23 24 LTE B40 21 to 25 22 23 24 LTE B41 21 to 25 22 23 24 4 5 Antenna requirements CLM920 AC3 Module Antenna Design Requirements Table 4 6...

Страница 51: ...e Reserved Idle mode Reserved LTE Without USB connection Sleep mode Reserved Idle mode Reserved Table 4 8 WCDMA call power consumption Frequency band Power level Current consumption mA WCDMA B1 23dBm...

Страница 52: ...ps Reserved LTE FDD B8 5Mbps Reserved 10Mbps Reserved LTE FDD B34 5Mbps Reserved 10Mbps Reserved 20Mbps Reserved LTE TDD B38 5Mbps Reserved 10Mbps Reserved 20Mbps Reserved LTE TDD B39 5Mbps Reserved 1...

Страница 53: ...eme working temperature 40 C 85 C Storage temperature 40 C 85 C 5 3 Module IO level CLM920 AC3 module IO level is as follows Table 5 2 Electrical Characteristics of CLM920 AC3 Module 5 4 Voltage CLM92...

Страница 54: ...apacitance requirement is 10pF The PCB layout of the protective device should be as close as possible to the V line to avoid the T line The ground plane around the module guarantees integrity and shou...

Страница 55: ...2 A101 B Visual inspection normal Function check normal RF indicator check normal Temperature shock High temperature 85oC Low temperature 40oC Temperature change time 30s Working mode no packaging no...

Страница 56: ...Shanghai Yuge Information Technology co LTD 49 High temperature storage Temperature 85oC Working mode no packaging no power no boot Test duration 24h JESD2 2 A103 C Visual inspection normal Function...

Страница 57: ...echanical properties 6 1 Chapter overview Exterior Module mechanical size 6 2 Exterior The CLM920 AC3 module is a PCBA with a single sided layout The appearance of the module is as follows Figure 6 1...

Страница 58: ...CLM920_AC3 Module Hardware Usage Guide Shanghai Yuge Information Technology co LTD 51 The figure below shows the bottom view size of the module Figure 6 3 Bottom view of the module unit mm...

Страница 59: ...CLM920_AC3 Module Hardware Usage Guide Shanghai Yuge Information Technology co LTD 52 Module recommended package Figure 6 4 Recommended module package unit mm...

Страница 60: ...the factory can complete the patch within 72 hours and the module can directly perform reflow soldering or other high temperature process If the module is in other conditions it needs to be baked befo...

Страница 61: ...curve is shown below Figure 7 1 Reflow soldering temperature graph Table 7 1 Reflow process parameter table Warm zone time key parameter Preheating zone 40 165 Heating rate 1 s 3 s Temperature zone 16...

Страница 62: ...daptive Multi rate BER Bit Error Rate CCC China Compulsory Certification CDMA Code Division Multiple Access CE European Conformity CSD Circuit Switched Data CTS Clear to Send DC Direct Current DTR Dat...

Страница 63: ...tal Isotropic Sensitivity TVS Transient Voltage Suppressor TX Transmitting Direction UART Universal Asynchronous Receiver Transmitter UMTS Universal Mobile Telecommunications System USIM Universal Sub...

Страница 64: ...data rate peak Modulation type Category 1 10Mbps QPSK 16QAM 64QAM Category 6 3 6Mbps 16QAM QPSK Category 7 7 2Mbps 16QAM QPSK Category 8 7 2Mbps 16QAM QPSK Category 9 10 2Mbps 16QAM QPSK Category 10 1...

Страница 65: ...vices is prohibited by express text please follow the regulations of the site and turn off the device Some wireless devices may interfere with the medical device causing the medical device to malfunct...

Страница 66: ...uipment packaging materials equipment or accessories and support recycling operations Emergency call This device uses wireless signals for propagation Therefore the network cannot be connected in all...

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