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NEO-M8L - Hardware integration manual

UBX-16010549 - R08

Appendix

Page 25 of 28

C1-Public

B

Recommended antennas

Manufacturer

Order no.

Comments

Hirschmann (

www.hirschmann-car.com

) GLONASS 9 M

GPS+GLONASS active

Taoglas (

www.taoglas.com

AA.160.301111

36 x 36 x 4 mm, 3-5 V 30 mA active

Taoglas (

www.taoglas.com

AA.161.301111

36 x 36 x 3 mm, 1.8 to 5.5 V / 10 mA at 3 V active

INPAQ (

www.inpaq.com.tw

B3G02G-S3-01-A

2.7 to 3.9 V / 10 mA active

Amotech (

www.amotech.co.kr

B35-3556920-2J2

35 x 35 x 3 mm GPS+GLONASS passive

Amotech (

www.amotech.co.kr

A25-4102920-2J3

25 x 25 x 4 mm GPS+GLONASS passive

Amotech (

www.amotech.co.kr

A18-4135920-AMT04 18 x 18 x 4 mm GPS+GLONASS passive

INPAQ (

www.inpaq.com.tw

ACM4-5036-A1-CC-S

5.2 x 3.7 x 0.7 mm GPS+GLONASS passive

Additional antenna Manufacturer: Allis Communications, 2J, Tallysman Wireless

Table 5: Recommend antennas

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Содержание M8 Series

Страница 1: ...Abstract This document describes the features and specifications of NEO M8L a high performance automotive dead reckoning ADR module with 3D sensors The module includes the u blox M8 concurrent GNSS e...

Страница 2: ...ument contains the final product specification This document applies to the following products Product name Type number ROM FLASH version PCN IN reference NEO M8L NEO M8L 0 12 Flash FW3 01 ADR 4 11 UB...

Страница 3: ...1 RESET_N Reset input 8 1 5 2 WHEELTICK Wheel tick input 8 1 5 3 FWD Forward reverse input 8 1 5 4 D_SEL Interface select 9 1 5 5 LNA_EN LNA enable 9 1 5 6 TIMEPULSE 9 1 6 Electromagnetic interference...

Страница 4: ...integration manual UBX 16010549 R08 Contents Page 4 of 28 C1 Public 4 5 Applications with cellular modules 22 Appendix 24 A Recommended parts 24 B Recommended antennas 25 Related documents 26 Revisio...

Страница 5: ...ly is not interrupted For NEO M8L modules the configuration can be saved permanently in SQI flash 1 3 Connecting power The NEO M8L positioning modules have up to three power supply pins VCC V_BCKP and...

Страница 6: ...e section 2 4 1 4 Interfaces For more information about the interfaces baud rates bandwidth speed and clock frequency and so on see the corresponding product data sheet 1 2 or 3 in the Related documen...

Страница 7: ...GNSS receiver is operated as a USB self powered device C23 C24 Capacitors Required according to the specification of LDO U1 D2 Protection diodes Protect circuit from overvoltage ESD when connecting Us...

Страница 8: ...modules By default the wheel tick count is based on the rising edge of the wheel tick pulse signal To improve performance with lower rate mechanically derived wheel tick signals the receiver may be co...

Страница 9: ...output is configured using messages for TIMEPULSE2 The time pulse output must not be held LOW during start up 1 6 Electromagnetic interference on I O lines Any I O signal line with a length greater th...

Страница 10: ...16 RESERVED Reserved 17 RESERVED Reserved 18 SDA SPI CS_N I O DDC data if D_SEL 1 or open SPI chip select if D_SEL 0 19 SCL SPI CLK I O DDC clock if D_SEL 1 or open SPI clock if D_SEL 0 20 TXD SPI MIS...

Страница 11: ...solder masks have the same size and position To improve the wetting of the half vias reduce the amount of solder paste under the module and increase the volume outside of the module by defining the d...

Страница 12: ...inimal setup for a design with a good GNSS patch antenna For exact pin orientation see the Appendix and the corresponding product Data sheet 1 2 or 3 in the Related documents section Figure 6 Module d...

Страница 13: ...matches the supply voltage of the active antenna for example 3 0 V use the filtered supply voltage available at pin VCC_RF as shown in Figure 8 Active antenna design using VCC_RF pin to supply the ac...

Страница 14: ...e More information about the ADR functionality can be found in the u blox 8 u blox M8 Receiver Description Including Protocol Specification 4 3 2 Sensor calibration The availability of Sensor Fusion M...

Страница 15: ...ommendations The quality of the solder joints on the connectors half vias should meet the appropriate IPC specification Reflow soldering A convection type soldering oven is highly recommended over the...

Страница 16: ...ducts Controlled cooling helps to achieve bright solder fillets with a good shape and low contact angle Temperature fall rate max 4 C s for the NEO M8L max 6 C s for the NEO M8L 01A To avoid falling o...

Страница 17: ...dering processes are recommended for boards populated with NEO M8L modules To avoid upside down orientation during the second reflow cycle the NEO M8L module should not be submitted to two reflow cycl...

Страница 18: ...dule from coating liquids with low viscosity therefore care is required in applying the coating Conformal coating of the module will void the warranty Casting If casting is required use viscose or ano...

Страница 19: ...ent ESD handling precautions ESD prevention is based on establishing an Electrostatic Protective Area EPA The EPA can be a small working station or a large manufacturing area The main principle of an...

Страница 20: ...mance sufficient Active antennas A RF_IN GNSS Receiver LNA B L RF_IN GNSS Receiver C D RF_IN GNSS Receiver LNA with appropriate ESD rating Figure 13 ESD precautions Protection measure A is preferred b...

Страница 21: ...f a PCB Weak GND concept e g small and or long ground line connections EMI protection measures are recommended when RF emitting devices are near the GNSS receiver To minimize the effect of EMI a robus...

Страница 22: ...of filters would be the SAW Filters from Epcos B9444 or B7839 or Murata Increasing interference immunity Interference signals come from in band and out band frequency sources In band interference With...

Страница 23: ...MHz G S M 900 G S M 1800 G S M 1900 P ower dBm GPS input filter characteristics G P S 1575 0 110 G P S s ignals G S M 950 Figure 17 Out band interference signals Measures against out band interference...

Страница 24: ...for mobile application Murata SAFEA1G58KB0F00 GPS GLONASS Low insertion loss only for mobile application Murata SAFEA1G58KA0F00 GPS GLONASS High attenuation only for mobile application Murata SAFFB1G...

Страница 25: ...x 36 x 3 mm 1 8 to 5 5 V 10 mA at 3 V active INPAQ www inpaq com tw B3G02G S3 01 A 2 7 to 3 9 V 10 mA active Amotech www amotech co kr B35 3556920 2J2 35 x 35 x 3 mm GPS GLONASS passive Amotech www a...

Страница 26: ...reference guide UBX 14001652 6 GPS Antenna Application Note GPS X 08014 7 NEO M8L NEO M8U Information Note UBX 20014805 8 GPS Compendium GPS X 02007 9 http www nxp com documents user_manual UM10204 pd...

Страница 27: ...Data Sheet reference R04 28 Feb 2017 njaf Firmware update for NEO M8L 01A 10 automotive grade variant R05 09 Sep 2017 njaf Firmware version update for NEO M8L 0 12 new PCN added R06 12 Sep 2018 njaf...

Страница 28: ...x com Regional Office China Beijing Phone 86 10 68 133 545 E mail info_cn u blox com Support support_cn u blox com Regional Office China Chongqing Phone 86 23 6815 1588 E mail info_cn u blox com Suppo...

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