MCP2551
FIGURE 2-3:
TEST CIRCUIT FOR AUTOMOTIVE TRANSIENTS
TXD
V
REF
RXD
CANL
GND
R
S
Rext
500 pF
Note:
R
S
may be connected to V
DD
or
GND via a load resistor depending
on desired operating mode as
described in Section 1.7.8
CANH
CAN
Transceiver
500 pF
Schaffner
Generator
60鈩?/div>
The wave forms of the applied transients shall be in accordance with 鈥淚SO-7637, Part 1鈥? test pulses 1, 2, 3a and 3b.
FIGURE 2-4:
HYSTERESIS OF THE RECEIVER
RXD (receive data
output voltage)
V
DIFF
(r)(i)
hysteresis
D19
V
OH
V
DIFF
(d)(i)
V
OL
0.5
0.9
V
DIFF
(V)
DS21667C-page 10
Preliminary
錚?/div>
2002 Microchip Technology Inc.
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