AS1153/55/57/58

Single/Dual LV DS Receivers

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1 General Description

The AS1153/55/57/58 are Single/Dual flow-through

LVDS (low-voltage differential signaling) receivers which

accept LVDS differential inputs and convert them to

LVCMOS outputs. The receivers are perfect for low-

power low-noise applications requiring high signaling

rates and reduced EMI emissions.

The devices are guaranteed to receive data at speeds

up to 260Mbps (130MHz) over controlled impedance

media of approximately 100

Ω. Supported transmission

media are PCB traces, backplanes, and cables.

The AS1155/58 are single LVDS receivers, and the

AS1153/57 are dual LVDS receivers.

The AS1157/58 features integrated parallel termination

resistors (nominally 107

Ω), which eliminate the require-

ment for discrete termination resistors, and reduce stub

lengths. The AS1153/55 uses high impedance inputs

and requires an external termination resistor when used

in a point-to-point connection.

The integrated Failsafe feature sets the output high if the

inputs are open, undriven and terminated, or undriven

and shorted.

All inputs conform to the ANSI TIA/EIA- 644 LVDS stan-

dards. Flow-through pinout simplifies PC board layout

and reduces crosstalk by separating the LVDS inputs

and LVCMOS outputs.

The devices are available in a 8-pin SOIC package.

Figure 1. Block Diagrams

2 Key Features

!

Flow-Through Pinout

!

Guaranteed 260Mbps Data Rate

!

300ps Pulse Skew (Max)

!

Conform to ANSI TIA/EIA-644 LVDS Standards

!

Single +3.3V Supply

!

Operating Temperature Range: -40 to +85ºC

!

Failsafe Circuit

!

Integrated Termination (AS1157/58)

!

8-pin SOIC Package

3 Applications

Digital Copiers, Laser Printers, Cellular Phone Base Sta-

tions, Add/Drop Muxes, Digital Cross-Connects,

DSLAMs, Network Switches/Routers, Backplane Inter-

connect, Clock Distribution Computers, Intelligent Instru-

ments, Controllers, Critical Microprocessors and

Microcontrollers, Power Monitoring, and Portable/Bat-

tery-Powered Equipment.

AS1155/58

IN1-

IN1+

N/C

N/C

OUT1

N/C

GND

AS1153/57

IN1-

IN1+

IN2+

IN2-

OUT1

OUT2

GND