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
IO
Bidirectional input and output
PI
Power input
PO
Power output
AI
Analog input
AO
Analog output
DI
Digital input
DO
Digital output
PIN definition
PIN
Standard PIN definition
Module PIN definition
IO Function Remarks
1
WAKE#
MIC+
AI
Audio input+
2
3.3Vaux
VBAT
PI Power input
3
COEX1
MIC-
AI Audio input-
4
GND
GND
GND
5
COEX2
SPK+/REC+
AO Audio output+ AT set headset and speaker mode
6
1.5V
UIM_DET
DI SIM Hot plug detection
7
CLKREQ#
SPK-/REC-
AO Audio output- AT set headset and speaker mode
8
UIM_PWR
UIM_PWR
PO SIM power
9
GND
GND
GND
10
UIM_DATA
UIM_DATA
IO SIM data signal
11
REFCLK-
UART_RX
DI UART receiving
12
UIM_CLK
UIM_CLK
DO SIM clock signal
13
REFCLK+
UART_TX
DO UART sending
14
UIM_RESET
UIM_RESET
DO SIM reset signal
15
GND
GND
GND
16
UIM_VPP
NC
17
RESERVED
VDD_EXT
PO 1.8V power output
18
GND
GND
GND
19
RESERVED
WAKEUP_IN
DI Sleep mode controlling
20
W_DISABLE#
RESERVED
RESERVED
21
GND
GND
GND
22
PERST#
RESET
DI Reset controlling Low level effective

23
PERn0
UART_CTS
DI UART sending clear
24
3.3Vaux
VBAT
PI Power input
25
PERp0
UART_RTS
DO UART requests sending
26
GND
GND
GND
27
GND
GND
GND
28
1.5V
ONOFF
AI Power on Low level effective
29
GND
GND
GND
30
SMB_CLK
NC
31
PETn0
NC
32
SMB_DATA
WAKEUP_OUT
DO Module wakeup host
33
PETp0
NC
34
GND
GND
GND
35
GND
GND
GND
36
USB_D-
USB_DM
IO USB differential signal-
37
GND
GND
GND
38
USB_D+
USB_DP
IO USB differential signal+
39
3.3Vaux
VBAT
PI Power input
40
GND
GND
GND
41
3.3Vaux
VBAT
PI Power input
42
LED_WWAN#
LED_WWAN
OC LED indicator
43
GND
GND
GND
44
LED_WLAN#
UIM_DET
DI
SIM Hot plug detection
45
RESERVED
PCM_CLK
DO PCM Clock pulse
46
LED_WPAN#
LED
OC LED indicator
47
RESERVED
PCM_DOUT
DO PCM sending data
48
1.5V
NC
49
RESERVED
PCM_DIN
DI PCM receiving data
50
GND
GND
GND
51
RESERVED
PCM_SYNC
DO PCM Frame synchronization signal
52
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
PIN
Name
I/0
Definition Min Voltage Typical Voltage Max Voltage
2/24/39/41/52
VBAT
PI
Module power 3.3 3.7 4.2

8
UIM_PWR
PO
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
PI
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:
PIN
Signal IO Description
36
USB_D-
IO
USB differential signal-
38
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.
PIN
Signal
I/O Definition
11
UART_RX
DI Sending data
13
UART_TX
DO Receiving data
23
UART_CTS
DI User enable module sending
25
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.
PIN
Signal
I/O High level Definition
6
USIM_DET
DI 1.8V USIM hot plug detection
8
UIM_PWR
PO 1.8V/2.95V USIM power
10
UIM_DATA
IO 1.8V/2.95V USIM data
12
UIM_CLK
DO 1.8V/2.95V USIM clock
14
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
1
HIGH
SIM inserted
2
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
PIN
Signal
I/O
High level Definition
19
WAKEUP_IN
DI
1.8V Module sleep control