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L816-AM Hardware User Manual

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4.5

Antenna Design

4.5.1 Antenna Design Requirements

The L816-AM module provides Main and Diversity antenna interfaces, and the antenna design
requirements are as follows

：

Main antenna requirements for L816-AM module

Frequency range

The most proper antenna to adapt the frequencies should be used.

Bandwidth
(GPRS/EDGE

）

GSM850 : 70 MHz
GSM900 : 80 MHz
GSM1800(DCS) : 170 MHz
GSM1900(PCS) : 140 MHz

Bandwidth (WCDMA)

WCDMA band I(2100) : 250 MHz
WCDMA band II(1900) : 140 MHz
WCDMA band V(850) : 70 MHz
WCDMA band VI(850): 55MHz
WCDMA band VIII(900) : 80 MHz

Bandwidth (LTE)

LTE band 2(1900):

140 MHz

LTE Band 4(1700):

445 MHz

LTE band 12(700):

50 MHz

Impedance

50 Ohm

Input power

> 35dBm(2W) peak power GSM
> 25dBm average power WCDMA & LTE

Recommended
standing-wave ratio
(SWR)

≤ 2:1

Содержание L816-AM

Страница 1: ...eproduction forbidden without Fibocom Wireless Inc written authorization All Rights Reserved L816 AM Hardware User Manual Page 1 of 42 L816 AM Hardware User Manual Version 2 0 4 Update date 2016 09 18...

Страница 2: ...Reproduction forbidden without Fibocom Wireless Inc written authorization All Rights Reserved L816 AM Hardware User Manual Page 2 of 42 Applicability Table No Product model Description 1 L816 AM N A...

Страница 3: ...bject to update from time to time owing to the product version upgrade or other reasons Unless otherwise specified the document only serves as the user guide All the statements information and suggest...

Страница 4: ...rface 13 3 1 LGA Interface 13 3 1 1 Pin Distribution 13 3 1 2 Pin Definition 14 3 2 Power Supply 19 3 2 1 Power Supply 19 3 2 2 Power Consumption 21 3 3 Control Signal 22 3 3 1 Module Start up 22 3 3...

Страница 5: ...Interface 34 4 1 Operating Band 34 4 2 Transmitting Power 34 4 3 Receiver Sensitivity 35 4 4 RF PCB Design 36 4 4 1 Trace Routing Principle 36 4 4 2 RF Impedance Design 36 4 5 Antenna Design 37 4 5 1...

Страница 6: ...S 36 521 1 V10 6 0 User Equipment UE conformance specification Radio transmission and reception Part 1 Conformance testing 3GPP TS 21 111 V10 0 0 USIM and IC card requirements 3GPP TS 51 011 V4 15 0 S...

Страница 7: ...A HSPA Band I II V VI VIII GSM GPRS EDGE 850 900 1800 1900MHz Data Transmission LTE FDD Rel 9 10Mbps DL 5Mbps UL Cat 1 WCDMA HSDPA HSUPA UMTS 384 kbps DL 384 kbps UL HSDPA CAT 7 7 2 Mbps Down HSUPA CA...

Страница 8: ...0 is 3dBi for frequency 1800 is 5dBi and the antenna separation distance is 20cm 2 3 2 FCC Statement Federal Communication Commission Interference Statement This device complies with Part 15 of the FC...

Страница 9: ...es with FCC radiation exposure limits set forth for an uncontrolled environment This equipment should be installed and operated with minimum distance 20cm between the radiator your body This device is...

Страница 10: ...ion of the device Le pr sent appareil est conforme aux CNR d Industrie Canada applicables aux appareils radio exempts de licence L exploitation est autoris e aux deux conditions suivantes 1 l appareil...

Страница 11: ...e installed and operated with minimum distance 20cm between the radiator your body D claration d exposition aux radiations Cet quipement est conforme aux limites d exposition aux rayonnements IC tabli...

Страница 12: ...amework The hardware framework in Figure 2 2 shows the main hardware functions of L816 AM module including base band and RF functions Baseband contains the followings GSM UMTS LTE FDD controller Power...

Страница 13: ...itten authorization All Rights Reserved L816 AM Hardware User Manual Page 13 of 42 3 Application Interface 3 1 LGA Interface The L816 AM module applies LGA packaging with a total of 115 pins 3 1 1 Pin...

Страница 14: ...USIM reset 1 8V 3V 19 SIM1_CLK O L USIM clock 1 8V 3V 20 VSIM1 PO USIM power supply 1 8V 3V 26 SIM1_CD I USIM card detection with 390K pull up active high 1 8V EINT 31 Wakeup_Modem I PD Reserved CMOS...

Страница 15: ..._2 2 3V 7 ASM_2V5 PO ASM_2V5 2 5V Module Control 32 Reset_N I Module reset input with 100K pull up 1 8V 41 Power_On Off I Module power on off signal Advise the customer to increase the 200K pull down...

Страница 16: ...ND GND Ground 37 GND GND Ground 38 GND GND Ground 43 GND GND Ground 44 GND GND Ground 49 GND GND Ground 50 GND GND Ground 51 GND GND Ground 52 GND GND Ground 53 GND GND Ground 54 GND GND Ground 55 GND...

Страница 17: ...und TG9 GND Thermal Ground Ground TG10 GND Thermal Ground Ground TG11 GND Thermal Ground Ground TG12 GND Thermal Ground Ground TG13 GND Thermal Ground Ground TG14 GND Thermal Ground Ground TG15 GND Th...

Страница 18: ...4 GND Thermal Ground Ground TG35 GND Thermal Ground Ground TG36 GND Thermal Ground Ground TG37 GND Thermal Ground Ground TG38 GND Thermal Ground Ground TG39 GND Thermal Ground Ground TG40 GND Thermal...

Страница 19: ...Typical Value Maximum Value 45 VBAT_BB PI Power input to BB 3 3 3 8 4 5 46 VBAT_PA PI Power input to RF PA DC DC 3 3 3 8 4 5 47 VBAT_PA PI Power input to RF PA DC DC 3 3 3 8 4 5 48 VBAT_TR PI Power in...

Страница 20: ...to 100 220uF 1uF 100nF Digital signal noise Filter out the interference generated from the clock and digital signals 39pF 33pF 850 900 MHz frequency band Filter out low frequency band RF interference...

Страница 21: ...FRMS 2 TBD MFRMS 5 TBD MFRMS 9 TBD WCDMA DRX 6 TBD DRX 8 TBD DRX 9 TBD LTE FDD Paging cycle 64 frames 0 64 sec DRx cycle TBD Radio Off AT CFUN 4 Flight mode TBD IGPRS RMS CS4 GPRS 1Rx slot nTX slot GP...

Страница 22: ...l signals to execute the power on off and reset operations the pin definition is as follows Pin Pin Name I O Reset Value Functions Type 41 Power_On Off I Power on off signal with internal 200K pull do...

Страница 23: ...of 42 Figure 3 4 Circuit for Module Start up Controlled by AP Figure 3 5 Circuit for Automatic Start up 3 3 1 2 Start up Timing After powering on the module will start up by pulling up the Power_On Of...

Страница 24: ...Off pin Only used when a hardware exception occurs and the software control cannot be used The module can be shut down by sending AT CPWROFF command When the module receives the shutdown command the m...

Страница 25: ...tion the PMU remains its power inside the module The recommended circuit design is shown in the Figure 3 8 Figure 3 8 Recommended Design for Reset Circuit The reset control timing is shown in Figure 3...

Страница 26: ...f the module will be enabled and the enumeration will begin The VBUS pin is only used for the detection of USB port and the supply current is about 1mA When USB_DN USB_DP are disconnected the module w...

Страница 27: ...l lines should have the differential impedance of 90 ohms USB_DN and USB_DP signal lines should be parallel and have the equal length the right angle routing should be avoided USB_DN and USB_DP signal...

Страница 28: ...ard Slot The principles for N C SIM card slot design are described as follows When the SIM card is detached it connects the short circuit between CD and SW pins and drives the SIM1_CD pin low When the...

Страница 29: ...command and the description for AT command is as follows AT Command Hot plugging Detection Function Description AT MSMPD 1 Enable Default value the SIM card hot plugging detection function is enabled...

Страница 30: ...100mm or it could reduce the signal quality The SIM1_CLK and SIM1_DATA signal lines should be isolated by GND to avoid crosstalk interference If it is difficult for the layout the whole SIM signal li...

Страница 31: ...up off and reset sequences Whenever modem receives an SMS from the network it should assert high GPIO during 100msec then de assert low SMS ready GPIO should be triggered by non class 2 SIM card data...

Страница 32: ...with the GSM burst TX PA_BLANKING timing is shown in Figure 3 15 Figure 3 15 PA_Blanking Timing 3 7 Interrupt Control The L816 AM module provides four interrupt signals and the pin definition is as fo...

Страница 33: ...eshold of emission power can be set by the AT Commands The definition for BodySar function is as follows BodySar signal Function High Floating The module keeps the default emission power Low Lower the...

Страница 34: ...nd 1 IMT 2100MHz WCDMA 1920 1980 2110 2170 Band 2 PCS 1900MHz LTE FDD WCDMA GSM 1850 1910 1930 1990 Band 3 DCS 1800MHz GSM 1710 1785 1805 1880 Band 4 AWS 1700MHz LTE FDD 1710 1755 2110 2155 Band 5 CLR...

Страница 35: ...AM module is as follows Mode Band Rx Sensitivity dbm typical Note GPRS GSM850 TBD BLER 10 GSM900 TBD BLER 10 DCS1800 TBD BLER 10 PCS1900 TBD BLER 10 WCDMA Band I TBD BER 0 1 Band II TBD BER 0 1 Band V...

Страница 36: ...ied to meet the performance requirements The L816 AM module does not provide RF connector itself so routing RF traces are required for the connection with RF connectors or antenna feed points on the a...

Страница 37: ...L816 AM module Frequency range The most proper antenna to adapt the frequencies should be used Bandwidth GPRS EDGE GSM850 70 MHz GSM900 80 MHz GSM1800 DCS 170 MHz GSM1900 PCS 140 MHz Bandwidth WCDMA...

Страница 38: ...ireless Inc written authorization All Rights Reserved L816 AM Hardware User Manual Page 38 of 42 5 Structure Specification 5 1 Product Appearance The product appearance for L816 AM module is shown in...

Страница 39: ...ocom Wireless Inc written authorization All Rights Reserved L816 AM Hardware User Manual Page 39 of 42 5 2 Dimension of Structure The structural dimension of the L816 AM module is shown in Figure 5 2...

Страница 40: ...authorization All Rights Reserved L816 AM Hardware User Manual Page 40 of 42 5 3 Recommended Design for PCB Bonding Pad Recommended Design for PCB Bonding Pad of the L816 AM module is shown in Figure...

Страница 41: ...All Rights Reserved L816 AM Hardware User Manual Page 41 of 42 5 4 SMT Paster SMT Paster of the L816 AM module is shown in Figure Figure5 4 Please refer to L816 AM SMT Application Design Specification...

Страница 42: ...in order to keep products dry 5 5 3 Recommended baking standards Continuous baking time 24 hours Temperature 125 5 Oven Heat convection oven Component tray can NOT be baked on high temperature Need u...

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