Datasheet

TYPICAL CHARACTERISTICS
Driver Input
Receiver Output
120 Ω 120 Ω
Receiver Output
Driver Input
SN65LBC180A
SN75LBC180A
SLLS378D – MAY 2000 – REVISED APRIL 2009 ............................................................................................................................................................... www.ti.com
Figure 9. Typical Waveform of Nonreturn-to-Zero (NRZ), Pseudorandom Binary Sequence (PRBS) Data at
100 Mbps Through 15m, of CAT 5 Unshielded Twisted Pair (UTP) Cable
TIA/EIA-485-A defines a maximum signaling rate as that in which the transition time of the voltage transition of a
logic-state change remains less than or equal to 30% of the bit length. Transition times of greater length perform
quite well even though they do not meet the standard by definition.
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