Datasheet

Overview
1-2
1.1 Overview
The SN65LVDS122 is a 1.5-Gbps 2x2 cross-point switch. The four different
functions that the SN65LVDS122 provides are shown in Figure 1–1. The
function of the SN65LVDS122 is selected via pins S0 and S1. Control pins 1DE
and 2DE enable or disable the outputs. The output levels of this device are
LVDS, while the receiver has a wide input common-mode voltage range with
an ability to accept LVPECL and CML signaling levels in addition to LVDS.
Figure 1–1. Functional Configurations of the SN65LVDS122
1A
1B
2A
2B
1Y
1Z
2Y
2Z
1A
1B
2A
2B
1Y
1Z
2Y
2Z
A
B
1Y
1Z
2Y
2Z
1A
1B
2A
2B
Y
Z
MUX
2×2 Crosspoint Dual Repeater
1:2 Splitter 2:1 MUX
(1 or 2)
(1 or 2)
Figure 1–2 is a picture of the SN65LVDS122PW and EVM. The EVM
part number is SN65LVDS122EVM. The EVM comes with the
SN65LVDS122PW (TSSOP) installed. A copy of the data sheet is
shipped with the EVM. The lastest version of the data sheet is available
from www.ti.com.
Figure 1–2. SN65LVDS122 EVM