The SN55LVDS32, SN65LVDS32, SN65LVDS3486, and SN65LVDS9637 devices are differential line
receivers that implement the electrical characteristics of low-voltage differential signaling
(LVDS). This signaling technique lowers the output voltage levels of 5-V differential standard
levels (such as EIA/TIA-422B) to reduce the power, increase the switching speeds, and allow
operation with a 3.3-V supply rail. Any of the differential receivers provides a valid logical
output state with a ±100-mV differential input voltage within the input common-mode voltage range.
The input common-mode voltage range allows 1 V of ground potential difference between two LVDS
nodes.
The intended application of these devices and signaling technique is both point-to-point
and multidrop (one driver and multiple receivers) data transmission over controlled impedance media
of approximately 100 Ω. The transmission media may be printed-circuit board traces, backplanes, or
cables. The ultimate rate and distance of data transfer depends on the attenuation characteristics
of the media and the noise coupling to the environment.
The SN65LVDS32, SN65LVDS3486, and SN65LVDS9637 devices are characterized for operation
from –40°C to 85°C. The SN55LVDS32 device is characterized for operation from –55°C to
125°C.
