Yuga CLM920 Installation manual

CLM920

Hardware user guide

1 Introduction

This document is CLM920 Mini PCIE module hardware interface manual, designed to

describe the hardware of CLM920 , component and function characteristics, application

interface definition and user instructions, electrical and mechanical characteristics, etc.,

provide hardware user guide for user application development based on this product.

Abbreviation

ADC Analog-Digital Converter

AFC Automatic Frequency Control

AGC Automatic Gain Control

ARFCN Absolute Radio Frequency Channel Number

B2B Board to Board Connector

BER Bit Error Rate

CDMA Code Division Multiple Access

DAI Digital Audio interface

DAC Digital-to-Analog Converter

DSP Digital Signal Processor

DTR Data Terminal Ready

EFR Enhanced Full Rate

EMC Electromagnetic Compatibility

EMI Electro Magnetic Interference

ESD Electronic Static Discharge

EVDO Evolution Data Only

FR Full Rate

GPRS General Packet Radio Service

HR Half Rate

IMEI International Mobile Equipment Identity

ISO International Standards Organization

PLL Phase Locked Loop

PPP Point-to-point protocol

RAM Random Access Memory

ROM Read-only Memory

RTC Real Time Clock

SMS Short Message Service

UART Universal asynchronous receiver-transmitter

UIM User Identifier Management

USB Universal Serial Bus

VSWR Voltage Standing Wave Ratio

2 Product Summary

2.1

CLM920 is a wireless communication module with PCI Express Mini Card 1.2 standard

interface, support FDD/TDD/UMTS/EDGE/GSM network and Windows 7/Windows8/Windows

10/Android 4.0 or above OS. It can be used for the following scenes:

Vehicle equipment

Wireless POS machine

Wireless advertising/media

Remote monitoring

Intelligent metering

Mobile Broadband

Industrial automation

Other wireless terminal

2.2 Module characteristics

MODEL: CLM920

Chipset:MDM9607

Package type

Mini PCIE

Dimension (mm)

51*30*3.8

FDD-LTE

150M DL

50M UL

@Cat.4

B2 

B4 

B5 

B7 

WCDMA

42M DL

5.76M UL

B2 

B5 

GSM

236Kbps DL/UL

B2 

B5 

GPS

Analog audio

Optional

Digital audio



USB(2.0 High Speed)/UART/USIM



NDIS/ECM/Gobinet



2.3 Module function

CLM920 includes following circuit units:

Baseband processing unit

Power management unit

Memory unit



RF transceiver unit

RF front-end unit

GPS RF receiving unit

3 Application interface

3.1 Summary

This chapter mainly describes the interface definition and application of this module.

Including the following:

52 PIN gold finger

Interface definition

Power interface

USB interface

USIM interface

UART interface

WWAN interface

PCM/Analog audio interface

RF antenna interface

3.2 Module interface

3.2.1 52 PIN gold finger

3.2.2 Interface definition

Input and output parameter definition

Bidirectional input and output

Power input

Power output

Analog input

Analog output

Digital input

Digital output

PIN definition

Standard PIN definition

Module PIN definition

IO Function Remarks

WAKE#

MIC+

Audio input+

3.3Vaux

VBAT

PI Power input

COEX1

MIC-

AI Audio input-

GND

COEX2

SPK+/REC+

AO Audio output+ AT set headset and speaker mode

1.5V

UIM_DET

DI SIM Hot plug detection

CLKREQ#

SPK-/REC-

AO Audio output- AT set headset and speaker mode

UIM_PWR

PO SIM power

GND

UIM_DATA

IO SIM data signal

REFCLK-

UART_RX

DI UART receiving

UIM_CLK

DO SIM clock signal

REFCLK+

UART_TX

DO UART sending

UIM_RESET

DO SIM reset signal

GND

UIM_VPP

RESERVED

VDD_EXT

PO 1.8V power output

GND

RESERVED

WAKEUP_IN

DI Sleep mode controlling

W_DISABLE#

RESERVED

GND

PERST#

RESET

DI Reset controlling Low level effective

PERn0

UART_CTS

DI UART sending clear

3.3Vaux

VBAT

PI Power input

PERp0

UART_RTS

DO UART requests sending

GND

1.5V

ONOFF

AI Power on Low level effective

GND

SMB_CLK

PETn0

SMB_DATA

WAKEUP_OUT

DO Module wakeup host

PETp0

GND

USB_D-

USB_DM

IO USB differential signal-

GND

USB_D+

USB_DP

IO USB differential signal+

3.3Vaux

VBAT

PI Power input

GND

3.3Vaux

VBAT

PI Power input

LED_WWAN#

LED_WWAN

OC LED indicator

GND

LED_WLAN#

UIM_DET

SIM Hot plug detection

RESERVED

PCM_CLK

DO PCM Clock pulse

LED_WPAN#

LED

OC LED indicator

RESERVED

PCM_DOUT

DO PCM sending data

1.5V

RESERVED

PCM_DIN

DI PCM receiving data

GND

RESERVED

PCM_SYNC

DO PCM Frame synchronization signal

3.3Vaux

VBAT

PI Power input

NOTE:

The IO interface level of module is 1.8V (SIM interface level supports 1.8V and 3.3V)

The RESEVERED and NC PIN is suspended

3.3 Power interface

The power interface includes two parts:

VBAT for module power supply

USIM_PWR for SIM power supply

Power PIN definition

Name

I/0

Definition Min Voltage Typical Voltage Max Voltage

2/24/39/41/52

VBAT

Module power 3.3 3.7 4.2

UIM_PWR

SIM power 0 1.8/2.85 1.98/3.3

4/9/15/18/21/26/27/29/34

/35/37/40/43/50

GND

GND 0

The module uses a single power supply mode, the module provides 5-way power supply pin,

14-way ground pin to ensure the module’s normal operation, all power and ground pins should

be connected and get in use. The module power supply range is 3.3 - 4.2V, and it is

recommended to use 3.7V/2A power supply. Module in the transmission of data or instant call

will produce more than 2A peak current and it’s resulting in a larger power supply ripple, so the

customer’s circuit design of power line should be as short as possible and wide enough. It is

recommended to reserve a 220uF capacitors near the power input. It is recommended that

customers can use DCDC or LDO

to provide enough current. Then the VBAT is controlled by the MOS tube so that the module

can be completely switched off.

LDO Reference power circuit

DCDC Reference power circuit

MOS tube control power switch reference circuit

NOTE:

In order to prevent the damage of the module caused by surge and overvoltage, it is

suggested that a 5.1V/500mW zener diode to be connected on the module VBAT pin.

It is suggested that 3 ceramic capacitors (33pF, 10pF, 100nF) to be added to the VBAT pin

and to be placed close to the VBAT pin.

The minimum operating voltage of the module is 3.3V, because the transmission data or

GSM call will produce more than 2A current, resulting in the power supply voltage ripple

voltage drop, so the power supply voltage shall not be less than 3.3V.

GSM TDMA burst current supply voltage drop

3.4 USB port

The module USB port supports USB2.0 high-speed protocol, supports slave device mode, and

does not support USB charging mode. The USB input / output routing needs to follow the

USB2.0 characteristic, and the USB interface is defined as follows:

Signal IO Description

USB_D-

USB differential signal-

USB_D+ IO USB differential signal+

Circuit diagram of USB connection

NOTE:

USB routing design needs to strictly comply with the requirements of the USB2.0 protocol,

note the protection of the data line, differential line, controlling impedance for the line is 90

ohm. The ESD protection device should be added on the data line, and the equivalent

capacitance value of the ESD protection device is less than 1pF.

The power supply voltage of the USB bus is provided inside the module without external

supply. At the same time, the USB bus is not provided power. Because of the power of

module can only be used as slave device of USB bus.

USB port supports following functions:

Software download and update

Data communication

AT command

3.5 UART port

The module provides a UART port, the serial port level is 1.8V. The AT command can be sent

through the serial port, print program log information, etc. The module serial port supports

9600/19200/38400/57600/115200/230400bps baud rate and defaults is 115200bps.

Signal

I/O Definition

UART_RX

DI Sending data

UART_TX

DO Receiving data

UART_CTS

DI User enable module sending

UART_RTS

DO Module requests the user to send

UART port design

Module serial port level is 1.8V, if the serial port needs to be connected with the MCU of 3.3V

level, it is necessary to add a level conversion chip to realize the matching, chip connection can

refer to the following design:

Level conversion circuit

3.6 USIM interface

The module provides a USIM card interface compatible with the ISO 7816-3 standard, and the

USIM card power supply is internally powered by the module. The source regulator provides

the voltage of 1.8V and 3.0V.

Signal

I/O High level Definition

USIM_DET

DI 1.8V USIM hot plug detection

UIM_PWR

PO 1.8V/2.95V USIM power

UIM_DATA

IO 1.8V/2.95V USIM data

UIM_CLK

DO 1.8V/2.95V USIM clock

UIM_RESET

DO 1.8V/2.95V USIM reset

3.6.1 USIM slot design

The module does not has USIM slot, users need to design USIM slot on their own interface

board.

USIM interface reference design diagram is as follow:

NOTE:

USIM interface line is recommended to choose ON SEMI SMF15C device to do ESD

protection, USIM card peripheral circuit devices should be close to USIM slot.

The SIM card circuit is susceptible and caused no card. The slot should be placed as far

away from the antenna's RF as possible and keep away from the RF line, VBAT and high

speed signal line.

The internal UIM_DATA has been pulled to the USIM_VCC through the 47K resistor, the

outside does not need to pull-up.

USIM_DET is the detection pins of USIM card to detect whether the USIM inserts or does

not insert, the default is high level. When hot plug, it needs this pin to detect the USIM status.

The USIM card and the module’s GND needs to maintain good connectivity, UIM_CLK

GND should be protected independently.

3.6.2 USIM_DET Hot plug reference design

NO.

USIM_DET status

Definition

HIGH

SIM inserted

LOW

SIM does not inserted

NOTE:

It is recommended to add a diode protection beside the UIM _DET pin.

When a normally closed SIM or a normally open SIM card is used, the detection function

can be set by the AT command. AT+HOSCFG=1,1 (High level when SIM card is insert)/

AT+HOSCFG=1,0(Low level when SIM card is insert)/ AT+HOSCFG=0.0(Hot plug is

disabled)

3.7 GPIO interface

Signal

I/O

High level Definition

WAKEUP_IN

1.8V Module sleep control

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