# Openmoko's GSM modem block is clearly a close derivative of TI's Leonardo # reference design. The changes are a reduction from quadband to triband, a # newer RF PA (RF3166 instead of AWT6108 or RF3133) and a few minor nits. # # Although the schematics and the part specs appear to have been copied from # Leonardo almost verbatim, Openmoko's schematics and component placement # drawings use a different refdes numbering scheme. This difference in the # refdes numbering scheme impedes direct comparison between the original # Leonardo and Openmoko's derivative thereof. # # The present table has been constructed by Spacefalcon the Outlaw to map # Openmoko's refdes numbers back to the original Leonardo ones. # # The first column is Om refdes, the 2nd column is Leonardo refdes. # N/C means "no counterpart" - a component in Openmoko's version that did # not exist at all in the Leonardo original. # baseband core U1001 U201 U1002 U202 X1001 X201 C1001 C209 C1002 C210 C1003 C211 C1004 C212 C1005 C220 C1006 C221 C1007 C204 C1008 C208 C1009 C214 C1010 C215 C1011 C216 C1012 C217 C1013 C218 C1014 C219 C1015 C213 C1016 C296 C1017 C295 C1018 C253 C1050 C223 C1051 C202 C1052 C203 C1053 C201 R1001 N/C # Leonardo schem shows direct short instead R1002 R210 R1003 N/C # Leonardo schem shows a "star point" instead R1004 N/C # ditto R1006 N/C # Leonardo had HSL105 "not a component" short R1008 R251 R1009 R207 R1010 R206 R1011 R209 R1012 N/C # part of Om's MODEM_RST logic R1013 R216 R1014 R204 R1015 R208 R1016 R295 R1017 R296 R1018 N/C # part of Om's MODEM_ON logic R1020 R328 R1021 N/C # part of Om's MODEM_ON logic R1050 R215 Q1000 N/C # Om's addition Q1001 N/C # ditto # memory section U2000 U303 # Leonardo_plus_quadband_schem.pdf version C2002 C322 C2003 C318 R2003 N/C # Leonardo schem shows direct short instead # RF section (Om 200 block) U201 U603 U202 R600 U203 R601 L201 N/C # Om's PA->ANT_switch matching network is their own C201 C656 C202 C648 C205 C651 C206 C652 C207 C653 C208 C654 C210 N/C # Om's PA->ANT_switch matching network is their own C211 N/C # ditto C212 N/C # ditto C213 N/C # ditto C214 N/C # ditto R207 R621 R208 R622 R209 R623 # RF section (Om 300 block) U301 U602 X301 X202 D301 D200 L301 L600 L302 L601 C301 C655 C302 C600 C303 C609 C304 C608 C305 C607 C306 C606 C307 C610 C308 C617 C309 C619 C310 C622 C311 C613 C312 C616 C313 C620 C314 C628 C315 C629 C316 C630 C317 C631 C318 C632 C319 C633 C320 C634 C321 C698 C322 C225 C323 C224 C324 C226 C325 C205 R301 R604 R302 R211 R303 R217 # Om's 400 block (triband RF front end) is entirely their own, and has no real # correspondence to any of the known Leonardo versions (dual or quadband). # Ditto for their 100 block (antenna connection) - those Leonardo versions # for which we have schematics put their annenna connection out on an SMA.