idatalink Maestro RR Teardown

ID: 118806

Description:

Steps:

1. The case easily comes apart as it just snaps together with no screws

2. Once the case is apart the PCB just lifts right out of its plastic tray
3. Its kind of hard to see but on the back of the PCB there's a Texas Instruments LM2901 Quad Differential Comparator
4. Here we see a pair of Atmel ATA6561 CAN Interface IC's. these are what communicate with the vehicles CAN bus.

5. The heart of the RR is the STMicro STM32F205ZET6
6. This mico uses 32bit ARM Cortex M3 cores running at 120MHz
7. Above the STM32 theres a jelly bean STMicro ULN2003 Darlington Transistor array

8. 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

9. In the middle we have a MAXIM 9776E that i cant find any info on
10. To the left theres a Texas Instruments TLV274I 3 MHz 4 channel rail to rail op amp
11. 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.

12. 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