Related Manuals for Locosys MC-1612
Summary of Contents for Locosys MC-1612
- Page 1 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-1612 Hardware Design Guide Version 1.0 Date: 2013/09/17...
- Page 2 1 General Rules for Design-in In order to obtain good GPS performances, there are some rules which require attentions for using MC-1612 GPS module. 2 Circuit Design Power supply VCC It is necessary to provide a clean and stable power supply for our GPS module in order to obtain good performances.
- Page 3 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 UART (RX/TX) –Serial Interface (1). UART is the default interface (TTL level) that has the baud rate ranging from 4800 bps to 115200bps.
- Page 4 We use a RF chock coil to couple the DC to RF trace to perform the mentioned method. In LOCOSYS, we applied 2 types of architectures in our MC-1612 module. Customer select the module carefully while applying the design with an external antenna.
- Page 5 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 GPS active antenna 3.3V RF_IN 27nH or BEAD VCC_RF Micro processor (See note 1 in Table 6-1) keep alive to get hot start and AGPS start 2V~4.3V...
- Page 6 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...
- Page 7 High Voltage level: 2.8~3.1V Duration: 100ms (Firmware customization for duration is available) Period: 1s LOCOSYS provides following 1pps signal output mode for customer selections Standard GPS module will output the 1pps after the module is 3D_FIX. Free run 1PPS output after 3D_FIX GPS module will output the 1pps after the module is 2D_FIX.
- Page 8 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 3 Layout Guideline Layout underneath the GPS module GPS signal is very weak signal level around -160dBm~130dBm. Any noise or harmonic will decrease the quality of GPS.
- Page 9 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 It is better to have independent trace of power source for any device Ground Segmentation The separation of ground between GPS module and the rest of the system is recommended to avoid system interference.
- Page 10 Xizhi Dist., New Taipei City 221, Taiwan 886-2-8698-3698 886-2-8698-3699 www.locosystech.com 4 Thermal Profile for MC-1612 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 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...