E-L9637D Datasheet, PDF (12/15 Pages) STMicroelectronics – Monolithic bus driver with ISO 9141 interface

Functional description
Figure 8. EMS performance (ISO 9141 bus system)
L9637
= VS = 12V
50 Ohm
10kHz
VS
TX
K
IS O i nte rfa ce
D
Signal comparison
Δ≤D±£101%0 %
VS
RX
K
IS O i nte rfa ce
510 Ohm
136 Ohm
1.5n F
68 Ohm
P rob e
NAP - 73
40dB
Pim _ax = 5W
R ho d e & S chw a rtz
SMG
0.1 - 1000M H z
Pi
NAP
Figure 9. Input power vs. frequency diagram
P _{i (m W )}
10000
5000
n o t in c id e n t p o w e r re s is ta n t
1000
in c id en t p o w er res is tant
100
1
10
100
1000
f _{(M H z)}
12/15
Doc ID 1765 Rev 7