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LOCOSYS Technology Inc.

20F.-13, No.79, Sec. 1, Xintai 5th Rd.,

Xizhi Dist., New Taipei City 221, Taiwan

886-2-8698-3698
886-2-8698-3699

www.locosystech.com

MC-1010 Hardware Design Guide

Version 1.0

Date: 2013/12/31

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Содержание MC-1010

Страница 1: ...OCOSYS Technology Inc 20F 13 No 79 Sec 1 Xintai 5th Rd Xizhi Dist New Taipei City 221 Taiwan 886 2 8698 3698 886 2 8698 3699 www locosystech com MC 1010 Hardware Design Guide Version 1 0 Date 2013 12 31 ...

Страница 2: ...oke or low pass filter for power noise reduction 2 linear regulator is better than switch DC DC power supplier in ripple 3 Use enough decoupling capacitors beside VCC for stable voltage 2 2 V_BCKP backup battery Backup power is used for keeping RTC running and navigation data after the main power was turn off For a short term VCC off with backup power the GPS module can have a faster TTFF Time to ...

Страница 3: ...ed for any particular application and then the USB bridge is necessary 2 4 GND Ground Make sure all GND pins of module are connected to a good ground plane 2 5 Antenna Compliance Design GPS antenna is a receiving device to acquire weak GPS signal from sky Popular solution would be ceramic patch antenna because of its small form factor with low cost There are two types of antennas passive and activ...

Страница 4: ...se from air and PCB A simple direct line is recommended 4 If need a matching circuit could be place between patch antenna and GPS module as following The match circuit should be discussed with module and patch antenna maker by case Select an external antennal architecture with GPS module For an external antenna it needs a DC power to have it work properly A typical method is to feed a DC into the ...

Страница 5: ...9 www locosystech com 4 2 6 1PPS 1PPS signal is an output pulse signal used for timing application its electronic characteristic are list below ed 1PPS signal and its pulse width with 100ms duration Low Voltage level 0 0 4V High Voltage level 2 8 3 1V Duration 100ms Firmware customization for duration is available Period 1s ...

Страница 6: ...module GPS signal is very weak signal level around 160dBm 130dBm Any noise or harmonic will decrease the quality of GPS In modern GPS product it almost includes LCD MCU High Speed digital and RF system BT Wi Fi DVB T In order to minimize the influence of mentioned noise to GPS module please customer don t place any trace underneath the GPS module In other word give GPS module a clean GND plane is ...

Страница 7: ... power source for any device 3 4 Ground Segmentation The separation of ground between GPS module and the rest of the system is recommended to avoid system interference If this is not possible it is best to follow these typical rules segmentation of ground between digital and analogue system high current and low current system and different radiation systems in general such as GPS and GPRS One way ...

Страница 8: ... of the board 4 Thermal Profile for MC 1010 Modules All the information in this sheet should be used only for Pb free certification Lead Free Solder Paste Sn 96 5 Ag 3 0 Cu 0 5 Cycle Interval 300sec 4 1 SMT Solder Mask Please use the dimension of PCB pad as reference and shrink the size by 0 1 to 0 2 mm and use that as layout for paste mask For PCB pad layout please see Recommended land pattern di...

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