MAX13051_14 Datasheet, PDF (7/12 Pages) Maxim Integrated Products – ±80V Fault-Protected Can Transceiver with Autobaud

MAX13051
±80V Fault-Protected Can Transceiver
with Autobaud
Typical Operating Characteristics (continued)
(V_CC = +5V, R_L = 60Ω, C_L = 100pF, T_A = +25°C, unless otherwise specified.)
DRIVER PROPAGATION DELAY,
(R_RS = GND)
MAX13051 toc11
TXD
(2V/div)
V_DIFF
(1V/div)
200ns/div
LOOPBACK PROPAGATION DELAY
vs. R_RS
1.4
1.2
1.0
RECESSIVE
0.8
0.6
DOMINANT
0.4
0.2
0
0 20 40 60 80 100 120 140 160 180 200
R_RS (kΩ)
Pin Description
PIN
NAME
FUNCTION
1
TXD
Transmit Data Input. TXD is a CMOS/TTL-compatible input from a CAN controller.
2
GND Ground
3
V_CC
Supply Voltage. Bypass V_CC to GND with a 0.1µF capacitor.
4
RXD
Receive Data Output. RXD is a CMOS/TTL-compatible output from the physical bus lines CANH and CANL.
Autobaud Input. Drive AUTOBAUD low for normal operation. Drive AUTOBAUD high for autobaud
5 AUTOBAUD operation. When operating in autobaud mode, TXD is looped back to RXD without applying a differential
signal at CANH and CANL.
6
CANL CAN Bus Line Low
7
CANH CAN Bus Line High
8
RS
Mode-Select Input. Drive RS low or connect to GND for high-speed operation. Connect a resistor between
RS and GND to control output slope. Drive RS high to put into standby mode.
Maxim Integrated
7