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crwdns2935311:0crwdnd2935311:0crwdne2935311:0 crwdns2935313:0idatalink Maestro RRcrwdnd2935313:0crwdnd2935313:0crwdne2935313:0

  1. idatalink Maestro RR Teardown, idatalink Maestro RR Teardown: crwdns2935265:01crwdnd2935265:01crwdnd2935265:01crwdne2935265:0
    • The case easily comes apart as it just snaps together with no screws

  2. idatalink Maestro RR Teardown: crwdns2935265:02crwdnd2935265:01crwdnd2935265:02crwdne2935265:0 idatalink Maestro RR Teardown: crwdns2935265:02crwdnd2935265:02crwdnd2935265:02crwdne2935265:0
    • Once the case is apart the PCB just lifts right out of its plastic tray

    • Its kind of hard to see but on the back of the PCB there's a Texas Instruments LM2901 Quad Differential Comparator

    • Here we see a pair of Atmel ATA6561 CAN Interface IC's. these are what communicate with the vehicles CAN bus.

  3. idatalink Maestro RR Teardown: crwdns2935265:03crwdnd2935265:01crwdnd2935265:01crwdne2935265:0
    • The heart of the RR is the STMicro STM32F205ZET6

    • This mico uses 32bit ARM Cortex M3 cores running at 120MHz

    • Above the STM32 theres a jelly bean STMicro ULN2003 Darlington Transistor array

  4. idatalink Maestro RR Teardown: crwdns2935265:04crwdnd2935265:01crwdnd2935265:01crwdne2935265:0
    • Looking around at the small amount of other chips in the board here we see an NXP TJA1055T/c CAN Controller. this is going to communicate with the digital CAN bus in new vehicles

  5. idatalink Maestro RR Teardown: crwdns2935265:05crwdnd2935265:01crwdnd2935265:01crwdne2935265:0
    • In the middle we have a MAXIM 9776E that i cant find any info on

    • To the left theres a Texas Instruments TLV274I 3 MHz 4 channel rail to rail op amp

    • EDIT: After realizing i had a typo in the name, calling it an 9779E instread of the 9776E, its a 1.5W audio amp. this is used for vehicles where when using the RR you keep the original warning and door chimes but connecting a small speaker somewhere, usually shoved into the dash board.

  6. idatalink Maestro RR Teardown: crwdns2935265:06crwdnd2935265:01crwdnd2935265:01crwdne2935265:0
    • And the last image we have a pair of Texas Instruments CM052B which i also can't find even a Mouser listing for. but apparently its actually a CD4052 4 channel Multiplexer

bassblaster505

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