L9663 datasheet(8/106 Pages) STMICROELECTRONICS

部件名	L9663

功能描述	Automotive PSI5 Transceiver IC

PDF	106 Pages

Scroll/Zoom	100%

制造商	STMICROELECTRONICS [STMicroelectronics]

网页	http://www.st.com

标志

8 / 106 page

Overall description

L9663

8/106

DS11401 Rev 6

The Transceivers 1 and 2 limit the current and the PSIx voltage (PSI5-requirement when

VAS is too high because of failure in the VAS power supply, less than 11 V in data

transmission or less than 16.5 V in sync pulse).

The current modulated signal received from sensor is detected and digitally converted. This

sensor data will then either be:



First Manchester decoded by the Manchester Decoder block with mark space error

correction and then transferred to the "receive data buffer" module (Mode 1). The data

from the new sensor frames will be saved in a buffer and then will be transferred to the

µC via SPI.



Transferred directly to the µC (Mode 2). In this case the output of the transceiver is a

Manchester-coded signal without error correction that falls under microcontroller

responsibility.

L9663 数据表(PDF) 8 Page - STMicroelectronics