Datasheet

SN65MLVD200, SN65MLVD202
SN65MLVD204, SN65MLVD205
MULTIPOINT–LVDS LINE DRIVERS AND RECEIVERS
SLLS463E – SEPTEMBER 2001 – REVISED JUNE 2003
22
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
APPLICATION INFORMATION
comparison of M-LVDS with RS-485
RS-485 applications are similar to M-LVDS. The two standards define balanced multipoint systems with some
basic architecture changes due to the different applications. Table 4 gives a high-level comparison of the two
different technologies.
Table 4. Comparison Between M-LVDS and RS-485 Standards
Number of Loads
Differential Voltage
Range
Common-Mode
Voltage Range
Maximum Signaling
Rate (Mbps)
Receiver Minimum
Threshold
RS-485 32 1.5 V to 5 V –7 V to 12 V 50 Mbps ±200 mV
M-LVDS 32 480 mV to 650 mV –1 V to 3.4 V 500 Mbps ±50 mV
It can be seen that with the greater differential output voltage and common-mode voltage range of the
RS-485-type device, it can handle longer signaling distances where M-LVDS offers ten times the signaling rate
of RS-485.
Up to 32
Transceivers
SN65MLVD200SN65MLVD200
R
T
R
T
NOTE A: The line should be terminated at both ends in its characteristic impedance (R
T
= Z
O
). Stub lengths off the main line should be kept
as short as possible.
Figure 34. Typical Application Circuit