Philips Semiconductors
Preliminary specification
High speed CAN transceiver
TJA1050
TEST AND APPLICATION INFORMATION
+
5 V
handbook, halfpage
47
µF
100
nF
V
CC
3
TXD
CANH
CANL
1
5
4
7
6
V
ref
R
C
L
L
TJA1050
60 Ω
100 pF
RXD
2
8
GND
S
15 pF
MGS376
Fig.3 Test circuit for timing characteristics.
HIGH
LOW
handbook, full pagewidth
TXD
CANH
CANL
dominant
(BUS on)
0.9 V
(1)
V
i(dif)(bus)
RXD
0.5 V
recessive
(BUS off)
HIGH
0.7V
CC
0.3V
CC
LOW
t
t
d(TXD-BUSon)
t
d(TXD-BUSoff)
t
d(BUSon − RXD)
d(BUSoff − RXD)
t
t
PD TXD − RXD
(
)
(
)
PD TXD − RXD
MGS377
(1) Vi(dif)(bus) = VCANH − VCANL
Fig.4 Timing diagram for AC characteristics.
8
1999 Sep 27
NXP [ NXP ]
