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| SIM900D-te_pcb layout & schematic for reference_application note_v1.00 http://
SIM900D-te pcb layout for reference SIM900D-te_pcb layout & schematic for reference_applic ation note_v1.00 2010.08.27 2 document title: SIM900D-te pcb layout for reference version: 1.00 date: 2010-8-27 status: release document control id: SIM900D-te_pcb layout & schematic for reference_application note_v1.00 general notes simcom offers this information as a service to its users, to su pport application and engineering efforts that use the products designed by simcom. the information provided is based upon requirements specifically provided to simcom by the users. simcom has not undertaken any independent search for additional relevant information, including any information that may be in the user?s possession. furthermore, system validation of this product designed by simcom within a larger electronic system remains the responsibility of the user or the user?s system integrator. all specifications supplied herein are subject to change . copyright this document contains proprietary technical information which is the property of simcom limited., copying of this document and giving it to others and the using or communication of the contents thereof, are forbidden without express au thority. offenders are liable to the payment of damages. all rights reserved in the event of grant of a patent or the registration of a utility model or design. all specification supplied herein are subject to change without notice at any time. copyright ? shanghai simcom wireless solutions ltd. 2010 http:// SIM900D-te pcb layout for reference SIM900D-te_pcb layout & schematic for reference_applic ation note_v1.00 2010.08.27 3 content 1 introduction .................................................................................................. ? 2 schematic ..................................................................................................... ? 3 pcb layout .................................................................................................. ? 3.1 the SIM900D-te pcb?s stack up .................................................... ? 3.2 the SIM900D-te?s pcb layout ....................................................... ? top layer ........................................................................................ ? layer 2 ............................................................................................ ? layer 3 ............................................................................................ ? bottom layer .................................................................................... ? silkscreen top ................................................................................. ? reference designator top ................................................................ ? solder mask top .............................................................................. ? paste mask top ................................................................................ ? silkscreen bottom ........................................................................... ? reference designator bottom .......................................................... ? solder mask bottom ........................................................................ ? paste mask bottom .......................................................................... ? http:// SIM900D-te pcb layout for reference SIM900D-te_pcb layout & schematic for reference_applic ation note_v1.00 2010.08.27 4 version history data version description of change author 2010-8-27 v1.00 origin liya wang guoqiang http:// SIM900D-te pcb layout for reference SIM900D-te_pcb layout & schematic for reference_applic ation note_v1.00 2010.08.27 5 1 introduction this document shows the detailed information about SIM900D-te pcb layout and schematic. it is only an illustration for customer. users should modify the pcb layout based on different cases. http:// SIM900D-te pcb layout for reference SIM900D-te_pcb layout & schematic for reference_applic ation note_v1.00 2010.08.27 6 2 schematic http:// SIM900D-te pcb layout for reference SIM900D-te_pcb layout & schematic for reference_applic ation note_v1.00 2010.08.27 7 note: in this schematic, the resistor r102 is a option for choosing either a gsc type coaxial rf http:// SIM900D-te pcb layout for reference SIM900D-te_pcb layout & schematic for reference_applic ation note_v1.00 2010.08.27 8 cable mxtk series, vended by murata or a soldered coaxial rf cable. the r102 is mounted with a 0ohm resistor, a soldered coaxial rf cable can be chose for antenna connection, and if the r102 is not mounted, the antenna should be connected via a gsc type coaxial rf cable. http:// SIM900D-te pcb layout for reference 3 pcb layout 3.1 the SIM900D-te pcb?s stack up the SIM900D-te is a four layer pcb, the pcb?s total thickness is 1.0mm, the clearance between the first layer and the second layer is 0.076mm, th e clearance between the second layer and the third layer is 0.665mm. the rf trace is routed on the top layer, and the second layer is the reference ground layer, for the thickness between the top layer and the second layer is only 0.076mm, so the width of the rf trace on the top layer is 0.11mm. 3.2 the SIM900D-te?s pcb layout the following picture are the detailed pcb layout of SIM900D-te. SIM900D-te_pcb layout & schematic for reference_applic ation note_v1.00 2010.08.27 9 http:// SIM900D-te pcb layout for reference top layer l the rf traces are 50ohm impedance controlled. rf connector is matched the gsc coaxial cable assembly, the rf cable should be 50ohm impedance controlled coaxial cable. rf pad is used for connect with solderable rf coaxial cable assemb ly, the rf cable is also should be 50ohm impedance controlled. SIM900D-te_pcb layout & schematic for reference_applic ation note_v1.00 2010.08.27 10 http:// SIM900D-te pcb layout for reference layer 2 SIM900D-te_pcb layout & schematic for reference_applic ation note_v1.00 2010.08.27 11 http:// SIM900D-te pcb layout for reference layer 3 SIM900D-te_pcb layout & schematic for reference_applic ation note_v1.00 2010.08.27 12 http:// SIM900D-te pcb layout for reference bottom layer SIM900D-te_pcb layout & schematic for reference_applic ation note_v1.00 2010.08.27 13 http:// SIM900D-te pcb layout for reference silkscreen top SIM900D-te_pcb layout & schematic for reference_applic ation note_v1.00 2010.08.27 14 http:// SIM900D-te pcb layout for reference reference designator top SIM900D-te_pcb layout & schematic for reference_applic ation note_v1.00 2010.08.27 15 http:// SIM900D-te pcb layout for reference solder mask top SIM900D-te_pcb layout & schematic for reference_applic ation note_v1.00 2010.08.27 16 http:// SIM900D-te pcb layout for reference paste mask top SIM900D-te_pcb layout & schematic for reference_applic ation note_v1.00 2010.08.27 17 http:// SIM900D-te pcb layout for reference silkscreen bottom SIM900D-te_pcb layout & schematic for reference_applic ation note_v1.00 2010.08.27 18 http:// SIM900D-te pcb layout for reference reference designator bottom SIM900D-te_pcb layout & schematic for reference_applic ation note_v1.00 2010.08.27 19 http:// SIM900D-te pcb layout for reference solder mask bottom SIM900D-te_pcb layout & schematic for reference_applic ation note_v1.00 2010.08.27 20 http:// SIM900D-te pcb layout for reference paste mask bottom SIM900D-te_pcb layout & schematic for reference_applic ation note_v1.00 2010.08.27 21 http:// contact us: shanghai simcom wireless solutions ltd add: sim technology building, no. 633, jinzhong road, shanghai,prchina 200335 tel: +86 21 32523300 fax: +86 21 32523200 url: www.sim.com http:// |
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