1FEATURES

2? AECQ-100 Grade 1

? Up to 400 Mbps Switching Rates

? Flow-Through Pinout Simplifies PCB Layout

? 50 ps Typical Driver Channel-to-Channel Skew

? 50 ps Typical Receiver Channel-to-Channel

Skew

? 3.3 V Single Power Supply Design

? TRI-STATE Output Control

? Internal Fail-Safe Biasing of Receiver Inputs

? Low Power Dissipation (70 mW at 3.3 V Static)

? High Impedance on LVDS Outputs on Power

Down

? Conforms to TIA/EIA-644-A LVDS Standard

? Available in Low Profile 16 Pin TSSOP

Package

DESCRIPTION

The DS90LV049Q is a dual CMOS flow-through

differential line driver-receiver pair designed for

applications requiring ultra low power dissipation,

exceptional noise immunity, and high data

throughput. The device is designed to support data

rates in excess of 400 Mbps utilizing Low Voltage Differential Signaling (LVDS) technology.

The DS90LV049Q drivers accept LVTTL/LVCMOS

signals and translate them to LVDS signals. The

receivers accept LVDS signals and translate them to

3 V CMOS signals. The LVDS input buffers have

internal failsafe biasing that places the outputs to a

known H (high) state for floating receiver inputs. In

addition, the DS90LV049Q supports a TRI-STATE

function for a low idle power state when the device is

not in use.

The EN and EN inputs are ANDed together and

control the TRI-STATE outputs. The enables are

common to all four gates.