Datasheet
Reduced EMI and Reections
Due to internal slope control for the MAX3055/MAX3056,
the CANH and CANL outputs are slew-rate limited. This
minimizes EMI and reduces reflections caused by improp-
erly terminated cables. In general, a transmitter’s rise time
relates directly to the length of an unterminated stub, which
can be driven with only minor waveform reflections. The fol-
lowing equation expresses this relationship conservatively:
Length = t
RISE
/(15ns/ft)
where t
RISE
is the transmitter’s rise time.
The MAX3054/MAX3055/MAX3056 require no special lay-
out considerations beyond common practices. Bypass V
CC
to GND with a 0.1μF ceramic capacitor mounted close to
the IC with short lead lengths and wide trace widths.
MAX3054/MAX3055/
MAX3056
±80V Fault-Protected/Tolerant CAN Transceiver
www.maximintegrated.com
Maxim Integrated
│
17
Chip Information
TRANSISTOR COUNT: 1300
PROCESS: BiCMOS