Continental Automotive GmbH MARSKEYLESS 用户手册
DAIMLER MARS EIS ECU
– Homologation of LF-Driver Part
Author:
Dept.:
Sebastian Henke
E-B-D2-HW
Doc. name:
Process
Process
Hardware Description
DAI_MARS_EIS_Homologation.docx
Doc.
version
1.1
Page:
13/31
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4.1 Functional Description
4.1.1
General Function
The ATA5291 is the main part of generating a f=125kHz signal and drive it through four series resonant
circuits, called LF antennas.
circuits, called LF antennas.
It is an ASIC with a sine-wave-generation circuitry to avoid noise in the AM-Band.
4.1.2
PEPS Tx Mode
Fig. 14 Extract from Datasheet