AMIS-42700 Datasheet, PDF (12/16 Pages) AMI SEMICONDUCTOR – Dual High-Speed CAN Transceiver

AMIS-42700 Dual High-Speed CAN Transceiver
Preliminary Data Sheet
+5V
100 nF
VCC
Vref
Text
12
3
8 ₁₃ ^CANH1
Rint
Tx0
9
AMIS-42700
14 ^CANL1
CANH2
19
4
Rx0 7
18 ^CANL2
10 2 17 16 15 6 5
R_LT
60 Ω
R_LT
60 Ω
EN1 EN2
GND
PC20050502.4
C_LT
100 pF
C_LT
100 pF
Figure 6: Test Circuit for Timing Characteristics
Tx0
CANHx
CANLx
V_i(dif) =
V_CANH - V_CANL
Rx0
t_d(TxD-BUSon)
t_pd(rec-dom)
HIGH
LOW
0,9V
0,5V
dominant
recessive
0,3 x V_CC
t_{d(TxD-BUSoff)}
t_d(BUSon-RxD)
t_pd(dom-rec)
0,7 x V_CC
t_{d(BUSoff-RxD)}
PC20050502.7
Figure 7: Timing Diagram for AC Characteristics
AMI Semiconductor – Rev. 1.4, May 05 - Preliminary
www.amis.com
12