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ZOE-M8 series - Hardware integration manual 

UBX-16030136 - R09 

Appendix  

Page 28 of 34 

Production information 

 

 

Appendix  
A

 

Component selection 

This section provides information about components that are critical for the performance of the ZOE-
M8 GNSS SiPs. Recommended parts are selected on a data sheet basis only. 

Temperature range specifications need only be as wide as required by a particular application. For the 
purpose of this document, specifications for industrial temperature range (-40 °C to +85 °C) are given.  

A.1

 

External RTC (Y1) 

ID 

Parameter 

Value 

1 

Frequency specifications 

1.1 

Oscillation mode 

Fundamental mode 

1.2 

Nominal frequency at 25 ºC 

32.768 kHz 

1.3 

Frequency calibration tolerance at 25 ºC 

< ±100 ppm  

2 

Electrical specifications 

2.1 

Load capacitance C

L

 

7 pF 

2.2 

Equivalent series resistance R

S

 

< 100 k

 

Table 6: RTC crystal specifications 

Manufacturer 

Order no. 

Micro Crystal 

CC7V-T1A 32.768 kHz 7.0 pF +/- 100 ppm 

Micro Crystal 

CM7V-T1A 32.768 kHz 7.0 pF +/- 100 ppm 

Micro Crystal 

CM8V-T1A 32.768 kHz  7.0 pF +/- 100 ppm 

Murata 

WMRAG32K76CS2C00R0 

Table 7: Recommend parts list for RTC crystal 

A.2

 

RF band-pass filter (F1) 

Depending  on  the  application  circuit,  consult  manufacturer  data  sheet  for  DC,  ESD  and  RF  power 
ratings! 

Manufacturer  Order no. 

System supported 

Comments 

TDK/ EPCOS 

B8401: B39162B8401P810 

GPS+GLONASS 

High attenuation 

TDK/ EPCOS 

B3913: B39162B3913U410 

GPS+BeiDou  For automotive application 

TDK/ EPCOS 

B9416: B39162B9416K610 

GPS 

High input power 

TDK/ EPCOS 

B4310: B39162B4310P810 

GPS+GLONASS 

Compliant to the AEC-Q200 standard 

TDK/ EPCOS 

B4327: B39162B4327P810 

GPS+BeiDou  Low insertion loss 

TDK/ EPCOS 

B9482: B39162B9482P810 

GPS+GLONASS 

Low insertion loss 

TDK/ EPCOS 

B9850: B39162B9850P810 

GPS 

Low insertion loss 

TDK/ EPCOS 

B8400: B39162B8400P810 

GPS 

ESD protected and high input power 

Murata 

SAFFB1G56KB0F0A 

GPS+BeiDou  Low insertion loss, only for mobile application 

Murata 

SAFEA1G58KA0F00 

GPS+GLONASS 

Only for mobile application 

Murata 

SAFFB1G58KA0F0A 

GPS+GLONASS 

High attenuation, only for mobile application 

Murata 

SAFEA1G58KB0F00 

GPS+GLONASS 

Low insertion loss, only for mobile application 

Murata 

SAFFB1G58KB0F0A 

GPS+GLONASS 

Low insertion loss, only for mobile application 

Triquint 

856561 

GPS 

Compliant to the AEC-Q200 standard 

Summary of Contents for ZOE-M8 Series

Page 1: ...u blox M8 SiP modules Hardware integration manual Abstract This document describes the hardware features and specifications of the u blox ZOE M8G and ZOE M8Q GNSS SiP system in package modules www u...

Page 2: ...iPs comply with all relevant requirements for RED 2014 53 EU The ZOE M8G Q Declaration of Conformity DoC is available at www u blox com under Support Product resources Conformity Declaration This docu...

Page 3: ...2 3 I O pins 10 2 3 1 Time pulse 10 2 3 2 External interrupt 10 2 3 3 External LNA enable 10 2 3 4 Electromagnetic interference and I O lines 10 2 4 Real time clock RTC 11 2 4 1 RTC using a crystal 1...

Page 4: ...5 3 4 Soldering 26 3 4 1 Soldering paste 26 3 4 2 Reflow soldering 26 3 4 3 Optical inspection 26 3 4 4 Repeated reflow soldering 26 3 4 5 Wave soldering 26 3 4 6 Rework 26 3 4 7 Use of ultrasonic pro...

Page 5: ...mance For RF optimization the ZOE M8 SiPs integrate a front end SAW filter and an additional front end LNA for increased jamming immunity and easier antenna integration A passive antenna can be used t...

Page 6: ...ZOE M8 GNSS SiPs are supplied through the VCC pin Built in LDOs generate stabilized voltages for the core and RF domains of the chip respectively The current at VCC depends heavily on the current sta...

Page 7: ...be connected to GND D3 SQI_CS_N GND Must be connected to GND Table 1 Enable DC DC converter If the SQI flash pins are used to enable the DC DC converter ensure that the SQI flash pins are set exactly...

Page 8: ...can wait on the TXD Ready signal instead of polling the DDC or SPI interfaces The UBX CFG PRT message lets you configure the polarity and the number of bytes in the buffer before the TXD Ready signal...

Page 9: ...tions Store the current configuration permanently Save data logging results Hold AssistNow Offline and AssistNow Autonomous data In addition the ZOE M8 GNSS SiPs can make use of a dedicated flash firm...

Page 10: ...nused By default the external interrupt is disabled If the EXTINT is not used for an external interrupt function it can be used for some other purpose for example as an output pin for the TXD Ready fe...

Page 11: ...ally an external 32 768 kHz signal can be provided 2 4 1 RTC using a crystal The easiest way to provide time information to the receiver is to connect an RTC crystal to the corresponding pins of the R...

Page 12: ...SS systems for example GPS Galileo GLONASS BeiDou and QZSS signals Because of the dual frequency RF front end architecture two GNSS signals from GPS L1C A GLONASS L1OF Galileo E1B C and BeiDou B1 can...

Page 13: ...NA make sure some good filtering is in place for the external LNA supply because of the noise on the VCC This means that a series ferrite bead FB1 and a decoupling capacitor to GND must be used see se...

Page 14: ...e sure RESET_N is detected Leave RESET_N open for normal operation The RESET_N complies with the VCC level and can be actively driven high Use RESET_N in critical situations only to recover the system...

Page 15: ...7 All GND Ground Ensure good GND connection F9 All Reserved I O Reserved Do not connect Must be left open G1 ZOE M8G VCC I Supply voltage Clean and stable supply needed ZOE M8Q V_CORE I Core supply vo...

Page 16: ...integration manual UBX 16030136 R09 Design in Page 16 of 34 Production information Figure 8 ZOE M8G pin assignment Figure 9 ZOE M8Q pin assignment For more information about the pin assignments see t...

Page 17: ...re integration manual UBX 16030136 R09 Design in Page 17 of 34 Production information 2 9 Typical schematic Figure 10 Typical schematic for the ZOE M8G Figure 11 Typical schematic for the ZOE M8Q usin...

Page 18: ...chieving a minimal time to first fix TTFF after a power down warm starts hot starts make sure to connect a backup battery to V_BCKP and use an RTC If not used make sure V_BCKP is connected to neighbor...

Page 19: ...Add a ground plane underneath the GNSS SiP to reduce interference This is especially important for the RF input line For improved shielding add as many vias as possible around the micro strip coplana...

Page 20: ...nna must be as short as possible to avoid jamming into the very sensitive RF section Make sure that RF critical circuits are clearly separated from any other digital circuits on the system board To ac...

Page 21: ...1 Electrostatic discharge ESD Electrostatic discharge ESD is the sudden and momentary electric current that flows between two objects at different electrical potentials caused by direct contact or in...

Page 22: ...see section 2 3 4 The following elements are critical regarding EMI Unshielded connectors for example pin rows Weakly shielded lines on PCB for example on top or bottom layer and especially at the bor...

Page 23: ...tely 20 dB can be reached with careful placement of the antennas If such isolation cannot be achieved for example in the case of an integrated GSM GNSS antenna an additional input filter is needed on...

Page 24: ...antenna 2 14 6 4 Out band interference Out band interference is caused by signal frequencies that are different from the GNSS carrier see Figure 18 The main sources are wireless communication systems...

Page 25: ...nas due to the risk of electrostatic charges In addition to standard ESD safety practices take the following measures into account whenever handling the receiver Unless there is a galvanic coupling be...

Page 26: ...tes max Table 5 Recommended conditions for reflow process The peak temperature must not exceed 255 C The time above 245 C must not exceed 40 seconds ZOE M8 GNSS SiPs must not be soldered with a damp h...

Page 27: ...ications Positioning Technology www positioningtechnology co uk 4 2 1 Guidelines for sensitivity tests 1 Connect a multi GNSS generator to the OEM product 2 Choose the power level in a way that the Go...

Page 28: ...G32K76CS2C00R0 Table 7 Recommend parts list for RTC crystal A 2 RF band pass filter F1 Depending on the application circuit consult manufacturer data sheet for DC ESD and RF power ratings Manufacturer...

Page 29: ...W25Q80DV 3 V 8 Mbit several package temperature options Winbond W25Q16JV 3 V 16 Mbit several package temperature options Winbond W25Q16FW 1 8 V 16 Mbit several package temperature options Winbond W25Q...

Page 30: ...able 14 Recommend parts list for RF ESD protection diode A 7 Ferrite beads FB1 Manufacturer Order no Comments Murata BLM15HD102SN1 High impedance at 1 575 GHz Murata BLM15HD182SN1 High impedance at 1...

Page 31: ...Protective Area ESD Electrostatic discharge Galileo European navigation system GLONASS Russian satellite system GND Ground GNSS Global Navigation Satellite System GPS Global Positioning System GSM Glo...

Page 32: ...otocol Specification UBX 13003221 3 GPS Antenna Application Note GPS X 08014 4 GPS Compendium GPS X 02007 5 GPS Implementation and Aiding Features in u blox wireless modules GSM G1 CS 09007 6 Informat...

Page 33: ...ions to configure the optional DCDC converter in section 2 1 3 R05 13 Sep 2017 mdur Added information on RED DoC in European Union regulatory compliance page 2 Modified remark for G9 pin in Table 3 Ad...

Page 34: ...u blox 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...

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