A M I S - 3 0 6 6 3
High Speed CAN Transceiver
Data Sheet
+3.3 V
100 nF
+5 V
V
CC
3
V
33
8
7
CANH
6.2 kW
10 nF
Active Probe
TxD
1
Generator
RxD
4
AMIS-
30663
6
CANL
6.2 kW
Spectrum Anayzer
5
2
30
W
V
REF
30
W
20 pF
GND
47 nF
PC20040918.11
Figure 8: Basic Test Set-up for Electromagnetic Measurement
CANH
CANL
recessive
V
i(com)
=
V
CANH
+ V
CANL
V
CM-peak
V
CM-step
V
CM-peak
PC20040829.7
Figure 9: Common-mode Voltage Peaks (see measurement set-up Figure 8)
AMI Semiconductor - Rev. 1.4, Oct. 04
9