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Sierra Wireless AirPrime MC5727, Руководство по интеграции оборудования


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RF Integration

Rev 1.9.1  Feb.09

  Proprietary and Confidential

43

 In the event of a discrepancy in values between this guide and the Product Specification Document (PSD), the PSD takes precedence.

•

Shield

 

the

 

host

 

device.

 

The

 

module

 

itself

 

is

 

well

 

shielded

 

to

 

avoid

 

external

 

interference.

 

However,

 

the

 

antenna

 

cannot

 

be

 

shielded

 

for

 

obvious

 

reasons.

 

In

 

most

 

instances,

 

it

 

is

 

necessary

 

to

 

employ

 

shielding

 

on

 

the

 

components

 

of

 

the

 

host

 

device

 

(such

 

as

 

the

 

main

 

processor

 

and

 

parallel

 

bus)

 

that

 

have

 

the

 

highest

 

RF

 

emissions.

 

•

Filter

 

out

 

unwanted

 

high

‐

order

 

harmonic

 

energy

 

by

 

using

 

discrete

 

filtering

 

on

 

low

 

frequency

 

lines.

•

Form

 

shielding

 

layers

 

around

 

high

‐

speed

 

clock

 

traces

 

by

 

using

 

multi

‐

layer

 

PCBs.

•

Route

 

antenna

 

cables

 

away

 

from

 

noise

 

sources.

Radiated sensitivity 
measurement

A

 

wireless

 

device

 

contains

 

many

 

sources

 

of

 

noise

 

that

 

contribute

 

to

 

a

 

reduction

 

in

 

Rx

 

performance.

To

 

determine

 

the

 

extent

 

of

 

any

 

desensitization

 

of

 

receiver

 

performance

 

due

 

to

 

self

‐

generated

 

noise

 

in

 

the

 

host

 

device,

 

over

‐

the

‐

air

 

(OTA)

 

or

 

radiated

 

testing

 

is

 

required.

 

This

 

testing

 

can

 

be

 

performed

 

by

 

Sierra

 

Wireless

 

or

 

you

 

can

 

use

 

your

 

own

 

OTA

 

test

 

chamber

 

for

 

in

‐

house

 

testing.

Sierra Wireless’ sensitivity testing and 
desensitization investigation

Most

 

carriers

 

require

 

a

 

certain

 

level

 

of

 

receiver

 

performance

 

to

 

ensure

 

proper

 

functioning

 

of

 

the

 

device

 

on

 

their

 

networks.

 

Although

 

the

 

module

 

has

 

been

 

designed

 

to

 

meet

 

these

 

carrier

 

requirements,

 

it

 

is

 

still

 

susceptible

 

to

 

various

 

performance

 

inhibitors.

As

 

part

 

of

 

the

 

Engineering

 

Services

 

package,

 

Sierra

 

Wireless

 

offers

 

modem

 

OTA

 

sensitivity

 

testing

 

and

 

desensitization

 

(desense)

 

investigation.

 

For

 

more

 

information,

 

contact

 

your

 

account

 

manager

 

or

 

the

 

Sales

 

Desk

 

(see

 

page

 

5

).

Note:  Sierra Wireless has the capability to measure TIS (Total 
Isotropic Sensitivity) and TRP (Total Radiated Power) according to 
CTIA's published test procedure.

OTA test chamber configuration

To

 

make

 

OTA

 

measurements,

 

a

 

test

 

chamber

 

is

 

required.

 

A

 

full

‐

size

 

anechoic

 

chamber

 

is

 

not

 

necessarily

 

required.

 

Figure

 

3

‐

2

 

shows

 

a

 

small

 

anechoic

 

chamber

 

manufactured

 

by

 

Содержание AirPrime MC5727

Страница 1: ...s MC5725 MC5725V MC5727 MC5727V MC5728 MC5728V MC8775 MC8775V MC8780 MC8781 MC8785V MC8790 MC8790V MC8791V 2130114 Rev 1 9 1 CDMA and GSM UMTS Mini Card Hardware Integration Guide Proprietary and Confidential ...

Страница 2: ......

Страница 3: ... near life support equipment or any equipment which may be susceptible to any form of radio interference In such areas the Sierra Wireless modem MUST BE POWERED OFF The Sierra Wireless modem can transmit signals that could interfere with this equipment Do not operate the Sierra Wireless modem in any aircraft whether the aircraft is on the ground or in flight In aircraft the Sierra Wireless modem M...

Страница 4: ... 216 5 847 553 5 878 234 5 890 057 5 929 815 6 169 884 6 191 741 6 199 168 6 339 405 6 359 591 6 400 336 6 516 204 6 561 851 6 643 501 6 653 979 6 697 030 6 785 830 6 845 249 6 847 830 6 876 697 6 879 585 6 886 049 6 968 171 6 985 757 7 023 878 7 053 843 7 106 569 7 145 267 7 200 512 7 295 171 7 287 162 D442 170 D459 303 D599 256 D560 911 and other patents pending This product includes technology ...

Страница 5: ...eless com Post Sierra Wireless 13811 Wireless Way Richmond BC Canada V6V 3A4 Fax 1 604 231 1109 Web www sierrawireless com Revision number Release date Changes 1 5 Jul 2007 Added 8780 81 content Added SED description Fixed details about capacitance Added connector pin details 1 6 Unreleased Changes incorporated into v1 7 1 7 Apr 2008 Removed references to RUIM MC57xx products Removed Diversity ant...

Страница 6: ...Product Specification Document PSD the PSD takes precedence 1 8 Sep 2008 Added content for MC8790 MC8790V MC8791V and MC8792V 1 9 Oct 2008 Added AT command entry timing note and Linux content to testing chapter Corrected range for external pull up resistor in Figure 5 2 1 91 Feb 2009 Added content for MC5728 and MC5728V FCC Revision number Release date Changes ...

Страница 7: ...ed documents 13 Power Interface 17 Overview of operation 17 Power signals 17 Electrostatic discharge ESD 18 Module power states 18 Disconnected state 19 Off state 19 Normal state 19 Low power mode 19 Voltage monitoring state machine 20 Temperature monitoring state machine 22 Inrush currents 24 Timing requirements 26 Power ramp up 26 Power up timing 26 Transmit power wave form GSM 26 Current consum...

Страница 8: ...s 41 Device generated RF 42 Methods to mitigate decreased Rx performance 42 Radiated sensitivity measurement 43 Sierra Wireless sensitivity testing and desensitization investigation 43 OTA test chamber configuration 43 Path loss calculation 44 Positioning the DUT Device Under Test 45 Sensitivity vs frequency 45 Audio Interface 51 System block diagrams 52 Modes of operation 55 Sidetone support 55 E...

Страница 9: ...testing 77 Test requirements 77 Test procedure 78 Certification testing 78 Production testing 79 Suggested manual functional test procedure 80 Suggested test plan procedure 80 Testing RF transmission path MC57xx 85 Testing RF transmission path MC87xx 86 Testing RF Receive path MC57xx 88 Testing RF Receive path MC87xx 90 Testing GPS Receiver MC8775V 93 Test Audio Loop back MC5725V MC5727V MC5728V M...

Страница 10: ...sity antenna design requirements MC57xx MC8780 MC8781 MC8785V MC8790 MC8790V MC8791V MC8792V 105 GPS antenna design requirements MC57xx MC8775V MC878x 105 Testing 106 Voltage Standing Wave Ratio VSWR 106 Efficiency 108 Antenna to antenna isolation 108 Peak gain and radiation patterns 109 Fading correlation coefficient 109 Regulatory Information 111 Important notice 111 Safety and hazards 111 Impor...

Страница 11: ...ng the GSM GPRS EDGE UMTS HSDPA HSUPA network standards and support Standalone GPS gpsOneXTRA A GPS selected enhanced Navigation 2 0 features and five NMEA sentences Purpose of this guide This guide addresses issues that affect the integration of Sierra Wireless modules into host products and includes design recommendations for the host products Note An understanding of network technology and expe...

Страница 12: ...ou use depends on how your device exposes the USIM socket For example the USIM connector used on the Mini Card Dev Kit board is an ITT CCM03 3518 Guide organization This guide includes the following sections 1 Introduction this section 2 Power Interface p 17 Describes power control signals used by the module and discusses design issues related to power supply integration 3 RF Integration p 37 Desc...

Страница 13: ... 3gpp org CDMA 1X Standard Technical requirements for CDMA systems including details on sleep cycle index SCI values Order this document CDMA 2000 Series Release A 2000 document TIA EIA IS 2000 Series Release A from www tiaonline org CDMA CnS Reference Document 2130754 CnS Control and Status messages that are supported by the MC5725 MC5725V CDMA AT Command Reference Document 2130620 Proprietary ba...

Страница 14: ...ns and standards compliance of the MC5728V MC8775 PCI Express Mini Card Product Specification Document 2130697 Features mechanical and electrical specifications and standards compliance of the MC8775 MC8775V with Audio PCI Express Mini Card Product Specification Document 2130700 Features mechanical and electrical specifications and standards compliance of the MC8775V MC8780 MC8781 PCI Express Mini...

Страница 15: ...erence Document 2130617 Proprietary basic AT commands for the MC87xx For MC57xx specific commands see the CDMA AT Command Reference Document 2130620 MC87xx Modem Extended AT Command Reference Document 2130616 Proprietary AT commands for the MC87xx For MC57xx specific commands see the CDMA Extended AT Command Reference Document 2130621 Mobile Station MS Conformance Specification Part 4 Subscriber I...

Страница 16: ...SM UMTS Mini Card Hardware Integration Guide 16 Proprietary and Confidential 2130114 In the event of a discrepancy in values between this guide and the Product Specification Document PSD the PSD takes precedence ...

Страница 17: ... electrical issues The host controls the module s power state using the W_Disable signal as shown in Figure 2 1 The signal is driven low by the host to power off the modem or left floating high impedance to power on the modem The module also monitors its supply voltage and requests shutdown if the supply is insufficient see Voltage monitoring state machine page 20 Figure 2 1 Recommended W_Disable ...

Страница 18: ...d JESD22 C101 125 V Charged Device Model MC5728 MC5728V only Non operational Host connector interface JESD22 A114 B 200V Human Body Model and JESD22 C101 250 V Charged Device Model MC5728 MC5728V has placeholders for additional ESD devices for cases where the device must per customer requirements meet the higher Human Body Model 1kV ESD rating Specific recommendations are provided where needed in ...

Страница 19: ...e power rail is shared between the host device and the module the host is powered off when the module is powered off Off state Note The module enters the Off state if W_Disable is driven low and power Vcc is applied to the module or if the module is in a powered state and W_Disable is driven low for a module dependent minimum period See State change Power off on on page 23 for details In this stat...

Страница 20: ...s a state machine to monitor the VCC3 3 3 0 V 3 6 V supply Figure 2 2 Figure 2 2 Voltage monitoring state machine Table 2 1 Voltage trigger levels Condition Voltage V MC57xx MC8775 75V MC8780 81 MC8785V MC8790 90V MC8791V 92V VOLT_HI_CRIT 3 6 3 6 3 6 VOLT_HI_NORM 3 5 3 5 3 5 VOLT_LO_NORM 3 1 3 1 3 1 VOLT_LO_WARN 3 0 3 0 3 05 VOLT_LO_CRIT 2 9 2 9 3 00 Normal Low Supply Voltage Critical Low power mo...

Страница 21: ...ed if enabled For a detailed description of this notification see CDMA CnS Reference Document 2130754 or MC87XX Modem CnS Reference Document 2130602 Note The module is still connected to the power source in this state drawing minimal power State change Power off on The module begins a shutdown sequence and powers off if it has been in a powered on state for more than 10 5 seconds and the host devi...

Страница 22: ...57xx Temp C MC87xx Temp C TEMP_LO_CRIT 30 25 TEMP_NORM_LO 20 15 TEMP_HI_NORM 85 85 TEMP_HI_WARN 95 95 TEMP_HI_CRIT 108 108 1 Module reported temperatures at the printed circuit board Temperature decreases from 10 C 18 C between the PCB and the module shield and a further 10 C 18 C between the shield and host environment ambient depending on the effi ciency of heat dissipation in the host device No...

Страница 23: ...ure returns from critical to normal limits as described in Table 2 2 TEMP_HI_NORM and TEMP_LO_NORM When this state change occurs the CnS notification CNS_RADIO_POWER is issued if enabled For a detailed description of this notification see CDMA CnS Reference Document 2130754 or MC87XX Modem CnS Reference Document 2130602 State change Power off on The module begins a shutdown sequence and powers off...

Страница 24: ... inrush currents from the host supply to the module on the power pins Application of the host s power supply Host leaves W_Disable floating high impedance to power up the module as shown in Figure 2 1 on page 17 Figure 2 4 and Figure 2 5 show the inrush models for the MC57xx and MC87xx Application of the host s power supply typically occurs when the switch is open W_Disable is left floating high i...

Страница 25: ...sh current and stabilize the supply of power to the module sufficient capacitance must be added to the host power rail The recommended capacitance range is 470 μF 1000 μF Peak current IPEAK is calculated using Inrush current via floating W_Disable The second event type occurs when the host leaves the W_Disable signal floating high impedance to power up the module The switch shown in Figure 2 4 and...

Страница 26: ... depending on module type after power up Most modules enumerate within 4 seconds Note The actual startup time may vary between the different module types for example MC5725 versus MC8775 Figure 2 6 Power up timing diagram Note Startup time is the time after power up when the modem is ready to begin the enumeration sequence Transmit power wave form GSM As shown in Figure 2 7 at maximum GSM transmit...

Страница 27: ...for both module types MC57xx and MC87xx Operating modes Current consumption overview Note Values in this guide are taken from the appropriate product specification documents PSDs listed in Related documents page 13 in the case of a discrepancy between this document and the relevant PSD use the value listed in the PSD Electrical requirements and current specifications are listed in Table 2 3 MC57xx...

Страница 28: ...iving MC5728 MC5728V 90 TBD 100 TBD 120 TBD CDMA Sleep default slot cycle 2 CDMA Sleep MC5728 MC5728V default slot cycle 2 The module supports slotted mode operation and Quick Paging Channel both enable reduced sleep current The values shown are the lowest power consumption during the sleep cycle The default Slot Cycle Index SCI for slotted mode operation is determined by the PRI setting usually 1...

Страница 29: ...m Tx power 480 mA 15 dBm Tx power 650 mA 21 dBm Tx power WCDMA data current 330 mA 64 kbps UL 384 kbps DL 0 dBm Tx power WCDMA searching channels 180 mA 320 mA peak HSDPA current 340 mA 0 dBm Tx power Maximum peak talk current 1 2 A Max RF output power full rate full operating temperature range Averaged GSM EDGE DC current consumption GSM Talk current Full rate GSM vocoder averaged over multiple T...

Страница 30: ...ull speed USB connection CL 50 pF on D and D signals Table 2 5 Current specifications MC8780 MC8781 Description Band Typ Max Units Notes Configuration Averaged standby DC current consumption With Sleep mode activated assumes USB bus is fully suspended during measurements HSDPA WCDMA UMTS bands 3 4 mA DRX cycle 8 2 56 s GSM GPRS EDGE GSM bands 3 4 mA MFRM 5 1 175 s With Sleep mode deactivated assum...

Страница 31: ... 75 A Worst case on 850 900 band a Highest current is on Band II PCS1900 b Approximate current difference between speeds 20 mA Example Current 7 2 Mbps Current 3 6 Mbps 20 mA Current 1 8 Mbps 40 mA c Highest current is on 850 900 band Class 10 Class 12 implements power backoff Current on 1800 900 bands is typically 100 200 mA less Table 2 6 Current specifications MC8785V Description Band Typ Max U...

Страница 32: ...mA Averaged Call Mode GSM EDGE data DC power consumption with 4 time slots GSM GPRS GSM bands 650 mA Max PCL for each bandc 220 mA 10 dBm Tx EDGE GSM bands 670 mA Class 12c Peak current averaged over 100 μs GSM bands 2 5 A Worst case on 850 900 band a Highest current is on Band II PCS1900 b Approximate current difference between speeds 30 mA c Highest current is on 850 900 band Class 10 Class 12 i...

Страница 33: ... at 20 dBm Tx powera 300 mA 0 dBm Tx power HSUPA 800 mA 2 Mbps at 20 dBm Tx power 350 mA 0 dBm Tx power HSDPA 1 8 Mbps 3 6 Mbps 7 2 Mbps 800 mA All speeds at 20 dBm Tx powerb 370 mA 0 dBm Tx power Peak current averaged over 100 μs 720 mA Averaged Call Mode GSM EDGE data DC power consumption with 4 time slots GSM GPRS GSM bands 650 mA Max PCL for each bandc 300 mA 10 dBm Tx EDGE GSM bands 620 mA Cl...

Страница 34: ...ttings Data rate Number of active Transmit time slots for transmit mode Sleep mode Sleep mode is the normal state of the module between calls or data connections In this reduced power mode the module cycles between wake polling the network and sleep at an interval determined by the network provider Deep sleep Deep sleep mode is a reduced power out of network coverage mode that the module enters wh...

Страница 35: ... download occurs or the modem doesn t reset spontaneously within 30 seconds of power on Usage models Usage models can be used to calculate expected current consumption A sample usage model is provided in Table 2 9 based on the values in Table 2 3 for a CDMA module This example model applies to a battery operated device In practice because the module is isolated from the battery the host device man...

Страница 36: ...SM UMTS Mini Card Hardware Integration Guide 36 Proprietary and Confidential 2130114 In the event of a discrepancy in values between this guide and the Product Specification Document PSD the PSD takes precedence ...

Страница 37: ...ments page 13 in the case of a discrepancy between this document and the relevant PSD use the value listed in the PSD Table 3 1 MC57xx Typical RF parameters Band Tx Band MHz Tx Power dBm Rx Band MHz Rx Sensitivity dBm PCS 1851 1910 23 to 25 1930 1990 106 Cellular 824 849 23 to 25 869 894 106 GPS 1575 42 SA Off 148 SA On 152 Table 3 2 MC87xx RF parameters Product Band Frequencies MHz Conducted Rx S...

Страница 38: ...MC8785V MC8790 MC8790V MC8792V Band II UMTS 1900 0 1 12 2 kbps Tx 1850 1910 Rx 1930 1990 110 5 109 23 1 MC8775 MC8775V MC8780 MC8781 MC8785V MC8790 MC8790V Band V UMTS 850 0 1 12 2 kbps Band VI is included as a subset of Band V Tx 824 849 Rx 869 894 111 5 110 23 1 MC8792V Band VIII UMTS 900 0 1 12 2 kbps Tx 880 915 Rx 925 960 110 5 109 23 1 MC8775V MC8780 MC8781 MC8785V MC8790 MC8790V MC8791V MC87...

Страница 39: ...he main RF connector on the top side the diversity RF or GPS connector on the bottom side Match coaxial connections between the module and the antenna to 50 Ω Minimize RF cable losses to the antenna the recommended maximum cable loss for antenna cabling is 0 5 dB Figure 3 1 Antenna connection points and mounting holes Ground connection When connecting the module to system ground Prevent noise leak...

Страница 40: ...erfor mance to match antenna gain and cable loss Choosing the correct antenna and cabling Consider the following points for proper matching of antennas and cabling The antenna and associated circuitry should have a nominal impedance of 50 Ω with a return loss 10 dB across each frequency band of operation The system gain value affects both radiated power and regulatory FCC IC CE etc test results De...

Страница 41: ...ased on ZIF Zero Intermediate Frequency technologies when performing EMC Electromagnetic Compatibility tests there are no IF Intermediate Frequency components from the module to consider Several sources of interference can affect the RF performance of the module RF desense Common sources include power supply noise and device generated RF RF desense can be addressed through a combination of mitigat...

Страница 42: ...interference that can negatively affect the receive sensitivity of the module The proximity of host electronics to the antenna in wireless devices can contribute to decreased Rx performance Compo nents that are most likely to cause this include Microprocessor and memory Display panel and display drivers Switching mode power supplies These and other high speed devices in particular the processor ca...

Страница 43: ...ver performance due to self generated noise in the host device over the air OTA or radiated testing is required This testing can be performed by Sierra Wireless or you can use your own OTA test chamber for in house testing Sierra Wireless sensitivity testing and desensitization investigation Most carriers require a certain level of receiver performance to ensure proper functioning of the device on...

Страница 44: ... Schwarz CMU200 is used to provide FER Frame Error Rate measurements Figure 3 2 Anechoic chamber Path loss calculation The chamber is calibrated for path loss using a reference antenna with known gain that is feeding a spectrum analyzer or power meter This makes it possible to determine the radiated power available to the receiving antenna and the path loss Radiated Power Measured received power A...

Страница 45: ...that maximizes transmitter power provides a sufficiently accurate location for receiver desense measurements The unit is placed in a call and set to generate peak output power either through a test mode or by configuring the base station simulator to issue the appro priate command The unit is then positioned for maximum power as determined by the call box Sensitivity vs frequency For the MC57xx se...

Страница 46: ...n RF coaxial cable connection The over the air measurements were made using both an external antenna and a typical device antenna Figure 3 3 US PCS sensitivity measurements In this test the external antenna performed best the expected result if a high efficiency antenna with some gain is used The internal antenna has less gain than the external antenna so the internal antennaʹs performance is offs...

Страница 47: ... the PSD takes precedence Sensitivity test results MC87xx Figures 3 4 through 3 11 show typical test results for conducted connections for the GSM850 GSM900 GSM1800 GSM1900 UMTS850 UMTS1900 and UMTS2100 bands The conducted measurements were made using an RF coaxial cable connection Figure 3 4 GSM850 sensitivity for BERII 2 Figure 3 5 EGSM900 sensitivity for BERII 2 ...

Страница 48: ...e 48 Proprietary and Confidential 2130114 In the event of a discrepancy in values between this guide and the Product Specification Document PSD the PSD takes precedence Figure 3 6 DCS1800 sensitivity for BERII 2 Figure 3 7 PCS1900 sensitivity for BERII 2 ...

Страница 49: ...ietary and Confidential 49 In the event of a discrepancy in values between this guide and the Product Specification Document PSD the PSD takes precedence Figure 3 8 UMTS850 sensitivity for BER 0 1 Figure 3 9 UMTS900 sensitivity for BER 0 1 ...

Страница 50: ...50 Proprietary and Confidential 2130114 In the event of a discrepancy in values between this guide and the Product Specification Document PSD the PSD takes precedence Figure 3 10 UMTS1900 sensitivity for BER 0 1 Figure 3 11 UMTS2100 sensitivity for BER 0 1 ...

Страница 51: ... summarizes the key audio features of these modules These modules are intended to serve as an integral component of a more complex audio system for example a PDA with a separate codec interfaced to the Host Application processor Table 4 1 Audio features Feature Transmit Receive Gain adjustable MC5725V MC5727V Up to 16 dB analog gain MC5728V Programmable to 0 dB or 24 dB MC8775V MC8785V MC8790V MC8...

Страница 52: ...nts the MC5725V MC5727V module s audio system block and includes the following features Module interconnects are shown on the left side of the diagram The audio interface uses the signals MIC_P MIC_N SPK_P SPK_N Note Make sure the host device includes DC blocking capacitors on the Audio In lines the module does not include series capacitors Dynamic ranges for each programmable gain stage are liste...

Страница 53: ...ic ranges for each programmable gain stage are listed with the following constraints MIC_AMP1 is programmable to 0 dB or 24 dB only CodecSTGain when set to the minimum setting effec tively mutes sidetone in the module codec Decoder RX DAC Encoder TX ADC HPF Slope HPF Echo Cancellation NS AAGC Tx FIR Rx FIR 13K CELP EVRC Decoder AAGC 13 bit A D 13 bit D A CodecRxGain RX_HPF_DIS_N CodecSTGain CodecT...

Страница 54: ...PCM_CLK PCM_DIN PCM_DOUT PCM_SYNC Dynamic ranges for each programmable gain stage are listed with the following constraints MIC_AMP1 is programmable in 1 5 dB steps CodecSTGain when set to the minimum setting effec tively mutes sidetone in the module codec When PCM audio is selected the RX DAC and TX ADC blocks are bypassed the external PCM codec controls transmit gain receive gain and sidetone ga...

Страница 55: ... indicates that the call is up and that the audio system is functioning The sidetone path can be enabled in either the PDA codec or the Mini Card modem each path is equally valid It should not be added to both devices and for speakerphone or car kit applications both sidetone paths should be disabled The typical handset sidetone is 12 dB below transmit voice levels Decoder RX DAC Encoder TX ADC HP...

Страница 56: ...rd offers four modes of echo cancellation to support unique end unit audio capabilities echo cancellation can also be turned off completely All echo cancellation is near end mobile TX cancellation only The network provides some level of far end echo cancellation Table 4 3 Echo cancellation details Mode Details Handset Short echo path 16 ms travel time from speaker to microphone Handset design requ...

Страница 57: ...eive and transmit paths speaker and microphone extends from 300 Hz to 3 4 kHz A programmable sidetone with a range from mute to unity gain is available for both headset and main audio paths Sidetone should be muted for speakerphone use Note that certain carriers now require use of hearing aid compatible transducers in a handset design The Primary audio path can be interfaced directly to such devic...

Страница 58: ...h directions of the phone interface Comfort noise low level noise injected into receiver path for user ʺconnectionʺ experience Simple ringers digital and analog tones melody ringers MIDI with limited memory storage These functions are typically performed in the host codec Voice Memo performed by the host if significant memory storage is required Polyphonic ringtone host often supports WAV MIDI for...

Страница 59: ...ltiple audio paths Transducer interface host provides acoustic drivers must occur outside of path switching and mixing These functions can be performed in either host or module codec depending on balance of component selection and engineering resources Volume settings adjustable gain settings based on user interface selections Sidetone careful placement of sidetone gain control is required to prev...

Страница 60: ...SM UMTS Mini Card Hardware Integration Guide 60 Proprietary and Confidential 2130114 In the event of a discrepancy in values between this guide and the Product Specification Document PSD the PSD takes precedence ...

Страница 61: ...ation documents for each module refer to these documents when integrating modules into your host devices The following are specific integration considerations relating to the host interface connector pins On any given interface USB USIM etc leave unused inputs and outputs as no connects Table 5 1 describes MC8775V MC8785V MC8790V MC8791V MC8792V specific pins that are rated for 2 6 V Reference the...

Страница 62: ...57xx or COM MC57xx and MC87xx ports using host Windows drivers Enumeration of the module as a set of dev ttyUSBn devices for Linux systems with the Sierra Wireless driver installed USB compliant transceivers USB handshaking Note If you are using the Windows or Linux drivers provided by Sierra Wireless you can skip this section it is intended for devel opers who are creating their own USB drivers T...

Страница 63: ...ty may be resumed by either the USB host or by the module If the host initiates USB activity 1 The USB transceiver detects the change in bus activity and triggers the USB_RESUME interrupt to the moduleʹs processor 2 The module then enables its USB clock and responds to the host If the module initiates USB communication Remote Wakeup 1 The module enables its USB clock 2 The module enables the USB t...

Страница 64: ...rding to the PCI Express Mini Card specification summarized in Table 5 2 below Table 5 2 LED states State Indicates Characteristics Off Module is not powered Light is off On Module is powered and connected but not transmitting or receiving Light is on Slow blink Module is powered and searching for a connection LED is flashing at a steady slow rate 250 ms 25 ON period 0 2 Hz 25 blink rate Faster bl...

Страница 65: ...sal Subscriber Identity Module The USIM holds account infor mation allowing users to use their account on multiple devices The USIM interface has four signals plus Ground These are defined in Table 5 3 with an example circuit shown in Figure 5 2 For USIM card contacts see Figure 5 3 Current limiting Resistor LED VCC 3 3V MIO MiniCard Table 5 3 USIM pins Pin name USIM contact number Function XIM_VC...

Страница 66: ...7xx XIM_VCC XIM_RESET XIM_DATA XIM_CLK USIM card connector GND Optional Locate near the USIM socket 47 pF 51 Ω 4 7uF X5R typ C1 XIM_VCC XIM_CLK XIM_IO XIM_RESET Located near USIM socket Located near USIM socket NOTE Carefully consider if ESD protection is required it may increase signal rise time and lead to certification failure GND ESD protection C3 C7 C2 C5 Optional Locate near the USIM socket ...

Страница 67: ...r The shielded assembly may help shield the USIM interface from system noise Reduce crosstalk on the XIM_data line to reduce the risk of failures during GCF approval testing Avoid routing the XIM_CLK and XIM_DATA lines in parallel over distances greater than 2 cm cross coupling of these lines can cause failures Keep USIM signals as short as possible and keep very low capacitance traces on the XIM_...

Страница 68: ...be removed while the module host device is powered up For example you could place the socket under the battery for portable devices consider similar options for other device types Test your first prototype host hardware with a Comprion IT3 USIM test device at a suitable testing facility Extended AT commands Several proprietary AT commands are available for the MC57xx and MC87xx to use in hardware ...

Страница 69: ...ransmitter ALLUP Turns on transmitter in all ups condition Provisioning commands CARRIERID Displays the carrier ID CDMA commands STATUS Displays the status of the modem SCI Gets slot cycle index Power control commands PCSTATE Power control state PCINFO Reads the power control information PCTEMP Reads the power control temperature PCVOLT Reads the power control voltage Table 5 4 MC57xx Extended AT ...

Страница 70: ...into FTM Factory Test Mode DAFTMDEACT password protected Puts the modem into online mode DAGGRSSI password protected Returns the RSSI Received Signal Strength Indicator in dBm GSM mode DAGGRSSIRAW password protected Returns the raw RSSI GSM mode DAGSLOCK password protected Returns the RF synthesizer lock state DAGSRXBURST password protected Sets the GSM receiver to burst mode DAGSRXCONT password p...

Страница 71: ...C password protected Returns the Rx AGC Automatic Gain Control value UMTS DAWSCONFIGRX password protected Sets the UMTS receiver to factory calibration settings DAWGCTON password protected Returns the Carrier to Noise ratio WCDMA DAWSPARANGE password protected Sets the PA range state machine UMTS DAWSTXCW password protected Sets the waveform used by the transmitter UMTS OSDSM password protected Di...

Страница 72: ...SM UMTS Mini Card Hardware Integration Guide 72 Proprietary and Confidential 2130114 In the event of a discrepancy in values between this guide and the Product Specification Document PSD the PSD takes precedence ...

Страница 73: ...c Specific areas requiring heat dissipation include the four shield cases indicated in Figure 6 1 Transmitter top shield next to RF connectors This is likely to be the hottest area Baseband 1 bottom shield below the transmitter Receiver top shield other side of module from the trans mitter Baseband 2 bottom shield below the receiver You can enhance heat dissipation by Maximizing airflow over aroun...

Страница 74: ...cy in values between this guide and the Product Specification Document PSD the PSD takes precedence Figure 6 1 Shield locations Note Make sure that your system design provides sufficient cooling for the module The RF shield temperature should be kept below 90 C when integrated to prevent damage to the module s compo nents ...

Страница 75: ...esistors in layout up to 100 Ω may be used depending on ESD testing requirements USIM operation page 67 Minimize RF cable losses as these affect the performance values listed in the product specification document RF connection page 39 Antennas Match the module antenna coax connections to 50 Ω mismatched antenna impedance and cable loss negatively affects RF performance RF connection page 39 If ins...

Страница 76: ...ds to mitigate decreased Rx performance page 42 Shield high RF emitting components of the host device for example main processor parallel bus etc Methods to mitigate decreased Rx performance page 42 Use discrete filtering on low frequency lines to filter out unwanted high order harmonic energy Methods to mitigate decreased Rx performance page 42 Use multi layer PCBs to form shielding layers around...

Страница 77: ...ompleted devices with the modules embedded Quality assurance testing post production AT command entry timing requirement Some commands require time to process before additional commands are entered For example the modem will return OK when it receives AT DAFTMACT If AT DASBAND is received too soon after this the modem will return an error When building automated test scripts ensure that sufficient...

Страница 78: ...le with one that is known to work correctly and repeat the tests 2 If the tests are successful reinstall the original module and repeat the tests If the module still does not work correctly contact your account manager Certification testing Note Typically you need to pass certification testing of your device with the integrated module one time only When you produce a host device with an embedded S...

Страница 79: ... host and module and the antenna is connected and performing to specifications RF tests Typical items to test include host connectivity the RF assembly Tx and or Rx as appropriate and the audio assembly for voice enabled modules Note The amount and types of tests to perform are your decision the tests listed in this section are guidelines only Make sure that the tests you perform exercise function...

Страница 80: ...cable Module is operational USB connection is functional LED is functional W_Disable module power down Firmware revision check Rx tests on main and auxiliary paths Tx test Audio microphone and speaker tests for voice enabled modules Suggested test plan procedure Note The following is a suggested outline for a relatively compre hensive test plan you must decide which tests are appropriate for your ...

Страница 81: ...SB devices If the command returns no such file or directory there are no devices currently connected 4 Test W_Disable Turn on the module by letting W_Disable float high impedance Depending on your device this may just require powering up the device Refer to the PCI Express Mini Card Dev Kit Quick Start Guide Document 2130705 for more details 5 Test USB functionality Check for USB enumeration Windo...

Страница 82: ...the fourth new enumerated device dev ttyUSB4 6 Some modules cause a Sierra Wireless Network Adapter to appear in Device Manager as shown below Disable the adapter to allow entry of AT commands when performing diagnostic tests a Right click the Sierra Wireless Network Adapter to display the context menu b Click Disable MC57xx 7 Make sure your modem is connected and running and then establish contac...

Страница 83: ...and minicom is not found then use a different program or download minicom and repeat this step See Downloading and configuring minicom for Linux systems on page 84 for details a Start minicom First use of the modem From the command line type minicom s always shows configuration menu Subsequent uses From the command line type minicom The minicom configuration details appear and the message OK appea...

Страница 84: ...er if desired See Testing GPS Receiver MC8775V on page 93 16 Test Audio loop back See Test Audio Loop back MC5725V MC5727V MC5728V MC8775V MC8785V MC8790V MC8791V MC8792V on page 94 17 Finish testing a If the network adapter was disabled in Step 6 re enable it same instructions except click Enable instead of Disable Note To power off the module drive W_Disable low for the required minimum period S...

Страница 85: ...ommands 6 Indicate the file handle to use for AT commands enter A and then replace the serial device string with the AT file handle for example dev ttyUSB4 for an MC8792V as shown in the example in Step 5 on page 81 7 Press Enter twice 8 Use the down arrow key to select Save setup as dfl 9 Select Exit Testing RF transmission path MC57xx Note This procedure segment is performed in Step 13 of the Su...

Страница 86: ...rom 0 24 dBm depending on your setup f AT TX 0 Turns off transmitter 3 Test limits Run ten or more good DUTs through this test proce dure to obtain a nominal output power value Apply a tolerance of 5 to 6 dB to each measurement assuming a good setup design Monitor these limits during mass production ramp up to determine if further adjustments are needed Note The MC57xx has a nominal output power o...

Страница 87: ...ents b Zero calibrate the meter c Enable MAP mode 2 Prepare the DUT using the following AT commands a AT UNLOCK lockCode Unlocks extended AT command set or AT ENTERCND b AT DAFTMACT Enters test mode c AT DASBAND bandValue See Table 8 1 for appropriate bandValue values d AT DASCHAN channel See Table 8 1 for appropriate channel values e GSM mode only AT DAGSTXFRAME 0 1 3000 0 f AT DASTXON Turns on t...

Страница 88: ...design Monitor these limits during mass production ramp up to determine if further adjustments are needed For GSM mode the transmit signal is bursted so the transmit power will appear averaged on the power meter reading Note The MC87xx has a nominal output power of 23 dBm 1 dB in WCDMA mode However the value measured by the power meter is significantly influenced beyond the stated 1 dB output powe...

Страница 89: ...frequency to 1960 200 MHz for PCS band Channel 600 or 881 720 MHz for Cellular band Channel 384 b Press the Amplitude button to set the amplitude to 55 0 dBm c Press the RF ON OFF button to enable or disable the RF port of the signal generator 2 Read back the power level from the main receiver a AT OEM 176 Unlocks the extended AT command set b AT DIAG Sets the modem in Diagnostic mode c AT CHAN 60...

Страница 90: ... each measurement assuming a good setup design Make sure the measurement is made at a high enough level that it is not influenced by DUT generated and ambient noise The Signal Generator power level should be at least 50 dBm Monitor these limits during mass production ramp up to determine if further adjustments are needed Note The value measured by the DUT depends on the test setup and DUT design H...

Страница 91: ...ode b Set the frequency for the band being tested See Table 8 2 for frequency values 2 Set up the DUT a AT UNLOCK customerCode or AT ENTERCND b AT DAFTMACT c AT DASBAND band See Table 8 2 for band values d AT DASCHAN channel Table 8 2 Test settings for MC87xx Receive path testing Bands Mode Test category 850 900 1800 1900 2100 WCDMA Frequency1 MHz 882 60 948 60 1961 2 2141 2 Band 22 29 15 9 Channe...

Страница 92: ...l Generator power level can be adjusted and new limits found if the radiated test needs greater signal strength Monitor these limits during mass production ramp up to determine if further adjustments are needed Note The value measured from the DUT is significantly influenced by the test setup and DUT design host RF cabling loss antenna efficiency and pattern test antenna efficiency and pattern and...

Страница 93: ...plan procedure page 84 Note This procedure segment is performed in Step 15 of the Suggested test plan procedure page 84 To test the carrier to noise level for the GPS receive path Note This procedure describes steps using the Agilent 8648C signal generator the Rohde Schwarz SML03 is shown for reference only 1 Set up the signal generator a Set the amplitude to 110 dBm b Set the frequency to 1575 52...

Страница 94: ...ath Test Audio Loop back MC5725V MC5727V MC5728V MC8775V MC8785V MC8790V MC8791V MC8792V Note This procedure segment is performed in Step 16 of the Suggested test plan procedure page 84 The microphone and speaker audio paths for voice enable modules can be tested by using an audio quantity that is suited to identify known assembly issues and applying limits to detect any problems To test the audio...

Страница 95: ... platform i Connect the generator output to the microphone input MIC positive and negative in the host ii Connect the analyzer input to the Speaker output SPK positive and negative in the host Figure 8 1 Mini Card Dev Kit showing MIC SPK pins 2 Set up the DUT using the following commands MC5725V MC5727V MC5728V a AT OEM 176 Unlocks the extended AT command set b AT DIAG Sets modem in Diagnostic mod...

Страница 96: ...fault values Quality assurance testing Note QA is an ongoing process based on random samples from a finished batch of devices The quality assurance tests that you perform on your finished products should be designed to verify the performance and quality of your devices The following are some testing suggestions that can confirm that the antenna is interfaced properly and the RF module is calibrate...

Страница 97: ...es Transmitter and receiver tests based on relevant sections of the 3GPP TS51010 and 3GPP 34121 documents Suggested testing equipment To perform production and post production tests you require appropriate testing equipment Figure 8 2 shows a suggested test station for use with devices incorporating either the MC57xx or the MC87xx In the test station as shown a test computer coordinates testing be...

Страница 98: ...ware Integration Guide 98 Proprietary and Confidential 2130114 In the event of a discrepancy in values between this guide and the Product Specification Document PSD the PSD takes precedence Figure 8 2 Recommended production test setup ...

Страница 99: ...1 9 1 Feb 09 Proprietary and Confidential 99 In the event of a discrepancy in values between this guide and the Product Specification Document PSD the PSD takes precedence Figure 8 3 Recommended Dev Kit test setup ...

Страница 100: ...SM UMTS Mini Card Hardware Integration Guide 100 Proprietary and Confidential 2130114 In the event of a discrepancy in values between this guide and the Product Specification Document PSD the PSD takes precedence ...

Страница 101: ...te If your system uses both the MC87xx and MC57xx the five band antenna can be used for both modules However improved antenna performance may be attained if a dual band main path antenna is designed and optimized specifically for the MC57xx Table A 1 Required antennas and maximum antenna gain by module type Antenna type minimum Maximum antenna gaina Module Main Diversity GPS Cellular band dBi PCS ...

Страница 102: ...d Cell IMT PCS GPS 5 4 a Gain limits in this table are as reported on FCC grants for each module for consideration against RF exposure and ERP EIRP limits Table A 1 Required antennas and maximum antenna gain by module type Antenna type minimum Maximum antenna gaina Module Main Diversity GPS Cellular band dBi PCS band dBi Table A 2 Supported frequency bands CDMA modules Module Band Antenna Mode Fre...

Страница 103: ...equency range MHz Supported network types GSM GPRS EDGE UMTS Main Antenna 850 North America Tx 824 849 Rx 869 894 Y Y Y Y 900 Europe Tx 880 915 Rx 925 960 Y Y Y 1800 Europe Tx 1710 1785 Rx 1805 1880 Y Y Y 1900 North America Tx 1850 1910 Rx 1930 1990 Y Y Y Y 2100 Europe Tx 1920 1980 Rx 2110 2170 Y Diversity GPS Antenna if GPS is enabled UMTS850 North America Rx 869 894 Y UMTS1900 PCS North America ...

Страница 104: ...nd diversity GPS path antennas should satisfy the following requirements Antenna impedance at feeding terminal 50 Ω A simple matching circuit with six or fewer components is acceptable at the feeding terminal Nominally omni directional radiation pattern in the azimuth plane Main antenna design requirements In addition to passing the specific tests described in Testing beginning on page 106 the mai...

Страница 105: ...a Performance goals When designing the antenna system consider the following performance goals 0dB gain antenna or better Diversity antenna receive performance to be similar to primary antenna Separation distance or polarity separation to achieve diversity antenna isolation of 10db minimum otherwise the receive antenna picks up too much power radiating from the primary antenna GPS antenna design r...

Страница 106: ...erform electrical measurements at room temperature 20 C to 26 C unless otherwise specified For main and diversity path antennas make sure the antennas including contact device coaxial cable connectors and matching circuit with no more than six components if required have nominal impedances of 50 Ω across the frequency bands in Table A 4 All tests except isolation correlation coefficient test the m...

Страница 107: ... VSWR Voltage Standing Wave Ratio Frequency MHz Typical VSWR Worst case VSWR at band edges Notes Main antenna 824 849 2 5 1 850 band Tx 869 880 3 5 1 850 band Rx excluding part inside 900 band Tx 880 915 2 5 1 900 band Tx 925 960 3 5 1 900 band Rx 1710 1785 2 5 1 1800 band Tx 1805 1850 3 5 1 1800 band Rx excluding part inside 1900 band Tx 1850 1910 2 5 1 1900 band Tx 1920 1980 2 5 1 2100 band Tx a...

Страница 108: ...u perform these tests If the antennas can be moved test all positions for both the main and secondary antennas Collect worst case isolation data Make sure all other wireless devices Bluetooth or WLAN antennas etc are turned OFF to avoid interference For details see Interference from other wireless devices on page 41 Note System performance below the minimum isolation specification could cause dama...

Страница 109: ... the antenna does NOT provide omni directional gain patterns Peak Gain performance can be affected by parameters such as antenna size location design type etc The antenna gain patterns remain fixed unless one or more of these parameters changes Table A 8 Peak and average antenna gain Antenna Peak gaina a Vertical horizontal polarizations Main 1 dBi 3 dBi Diversity 3 dBi 6 dBi Fading correlation co...

Страница 110: ...SM UMTS Mini Card Hardware Integration Guide 110 Proprietary and Confidential 2130114 In the event of a discrepancy in values between this guide and the Product Specification Document PSD the PSD takes precedence ...

Страница 111: ...m or for failure of the Sierra Wireless modem to transmit or receive such data Safety and hazards Do not operate your MC57xx MC87xx modem In areas where blasting is in progress Where explosive atmospheres may be present including refuelling points fuel depots and chemical plants Near medical equipment life support equipment or any equipment which may be susceptible to any form of radio interferenc...

Страница 112: ...must not exceed the levels detailed in Table A 1 Required antennas and maximum antenna gain by module type on page 101 3 The MC57xx MC87xx modem and its antenna must not be co located or operating in conjunction with any other transmitter or antenna within a host device 4 A label must be affixed to the outside of the end product into which the MC57xx MC87xx modem is incorporated with a statement s...

Страница 113: ...served to ensure compliance with current FCC IC RF exposure guidelines The end product with an embedded MC57xx MC87xx modem may also need to pass the FCC Part 15 unintentional emission testing requirements and be properly authorized per FCC Part 15 Note If this module is intended for use in a portable device you are responsible for separate approval to satisfy the SAR requirements of FCC Part 2 10...

Страница 114: ...SM UMTS Mini Card Hardware Integration Guide 114 Proprietary and Confidential 2130114 In the event of a discrepancy in values between this guide and the Product Specification Document PSD the PSD takes precedence ...

Страница 115: ... P1 is calculated power P2 is reference power Decibel 20 x log10 V1 V2 V1 is calculated voltage V2 is reference voltage dBm Decibels relative to 1 mW Decibel mW 10 x log10 Pwr mW 1mW DUT Device Under Test EDGE Enhanced Data rates for GSM Evolution EM Embedded Module ESD ElectroStatic Discharge FER Frame Error Rate a measure of receive sensitivity GPRS General Packet Radio Services GPS Global Posit...

Страница 116: ...ond MIO Module Input Output MPE Maximum Permissible Exposure the level of radiation to which a person may be exposed without hazardous effect or adverse biological changes OTA Over The Air or Radiated through the antenna PCS Personal Communication System PCS spans the 1 9 GHz radio spectrum RF Radio Frequency RMS Root Mean Square SA Selective Availability Sensitivity Audio Measure of lowest power ...

Страница 117: ... takes precedence USB Universal Serial Bus USIM Universal Subscriber Identity Module VCC3 3 3 3 V supply voltage WCDMA Wideband Code Division Multiple Access In this document the term UMTS is used instead of WCDMA XIM In this document XIM is used as part of the contact identifiers for the USIM interface XIM_VCC XIM_CLK etc Table C 9 Acronyms and definitions Acronym or term Definition ...

Страница 118: ...SM UMTS Mini Card Hardware Integration Guide 118 Proprietary and Confidential 2130114 In the event of a discrepancy in values between this guide and the Product Specification Document PSD the PSD takes precedence ...

Страница 119: ...etting 20 standard MC57xx reference document 13 standard MC87xx reference document 15 AT commands extended MC57xx reference 13 MC87xx reference 15 AT commands standard MC57xx reference 13 MC87xx reference 15 audio features summary 51 functions host controlled 58 functions module controlled 58 functions responsible codecs 52 interface 51 59 path mixing host controlled 59 path switching host control...

Страница 120: ...ufacturers 12 efficiency test criteria 108 EGSM 900 RF parameters MC87xx 37 sensitivity test results 47 electrostatic discharge See ESD ESD design checklist 76 protection requirements 18 testing techniques document IEC 61000 4 2 14 F fading correlation coefficient test criteria 109 FCC regulations relevant section 13 FER Frame Error Rate 45 filtering high pass slope filtering module controlled 58 ...

Страница 121: ... test results 46 sensitivity defined 45 MC8755 CnS reference and MC87xx 15 MC8755V CnS reference and MC87xx 15 MC8765 CnS reference and MC87xx 15 MC8775 AT commands extended and MC87xx 69 AT reference extended and MC87xx 15 AT reference standard and MC87xx 15 CnS reference and MC87xx 15 current specifications 28 30 networks supported 11 product specification 14 RF parameters 37 MC8775V AT commands...

Страница 122: ...8 power consumption MC8780 81 34 current consumption overview 27 default state 19 design checklist 75 disconnected characteristics 19 normal characteristics 19 off characteristics 19 off state change temperature 23 off state change voltage 21 power up timing 26 ramp up timing 26 required supply voltage 17 signals overview 17 state machine temperature monitoring 22 24 state machine voltage monitori...

Страница 123: ...le reset 34 speakerphone audio mode 51 speakerphone mode echo cancellation 57 state machine temperature monitoring 22 24 voltage monitoring 20 22 suspend mode USB 63 system block MC5725V audio 52 MC5727V audio 52 MC8775V audio 54 T temperature monitoring state machine trigger levels 22 temperature module See thermal test efficiency 108 fading correlation coefficient 109 gain antenna 109 isolation ...

Страница 124: ...p 26 handshaking 62 host driver requirements 63 interface host module communication 62 64 overview 62 resume mode 63 specification 15 suspend mode 63 USIM capacitor recommendations 68 card contacts 66 clock rate 67 connector type required 12 electrical specifications 67 impedance connectors 67 interface diagram 66 interface overview 65 operation 67 68 pin assignments 65 socket placement 68 V voice...

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