AMIS-42770 Dual High-Speed CAN Transceiver
For Long Networks
Data Sheet
+5V
100 nF
VCC
12
Vref
8 13
CANH1
6.2 kΩ
10 nF
Active Probe
Text
Rint
Tx0
Gen
Rx0
3
14
9
CANL1
CANH2
30
Ω
CANL2
47 nF
PC20071011.10
AMIS-42770
19
6.2 kΩ
30
Ω
Spectrum Anayzer
4
7
10
2
17 16 15
6
18
5
GND
EN1
EN2
Figure 10: Basic Test Set-up for Electromagnetic Measurement
CANHx
CANLx
recessive
V
i(com)
= 0.5 *
(V
CANHx
+ V
CANLx
)
V
CM-peak
V
CM-step
V
CM-peak
PD20070614.1
Figure 11: Common-mode Voltage Peaks (see measurement set-up Figure 10)
AMI Semiconductor
– October 2007, Rev. 1.0
www.amis.com
Specifications subject to change without notice
13