Specifications

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◈ SCIM UNIT
◇ LF / RF BLOCK DIAGRAM
LF Chip
Atmel
ATA5291
Power-
management
Transponder
interface
Watchdog
Driver Modules
RF receiver
Atmel
ATA5781
RF front-end XTO
24,74 MHz
Crystal
RF LF
Amplifier
SAW
Filter
ECU
SPI
Event lines
VDD = 5V
SPI
Event lines
VDD = 12V
LF Antennas
Door Handles
Transponder
Transponder
Antenna
Ex
Antenna
SCIM PACKAGE Configuration
1