General Description

The MAX9155 is a low-voltage differential signaling

(LVDS) repeater, which accepts a single LVDS input

and duplicates the signal at a single LVDS output. Its

low-jitter, low-noise performance makes it ideal for

buffering LVDS signals sent over long distances or

noisy environments, such as cables and backplanes.

The MAX9155’s tiny size makes it especially suitable for

minimizing stub lengths in multidrop backplane appli-

cations. The SC70 package (half the size of a SOT23)

allows the MAX9155 to be placed close to the connec-

tor, thereby minimizing stub lengths and reflections on

the bus. The point-to-point connection between the

MAX9155 output and the destination IC, such as an

FPGA or ASIC, allows the destination IC to be located

at greater distances from the bus connector.

nication in high-speed links that are highly sensitive to

timing errors, especially those incorporating clock-and-

data recovery, PLLs, serializers, or deserializers. The

MAX9155’s switching performance guarantees a

200Mbps data rate, but minimizes radiated noise by

guaranteeing 0.5ns minimum output transition time.

The MAX9155 has fail-safe circuitry that sets the output

high for undriven open, short, or terminated inputs.

The MAX9155 operates from a single +3.3V supply and

consumes only 10mA over a -40°C to +85°C tempera-

ture range. Refer to the MAX9129 data sheet for a quad

bus LVDS driver, and to the MAX9156 data sheet for a

low-jitter, low-noise LVPECL-to-LVDS level translator in

an SC70 package.

Applications

Cellular Phone Base Stations

DSLAMs

Digital Cross-Connects

Add/Drop Muxes

Network Switches/Routers

Multidrop Buses

Cable Repeaters

Features

o Tiny SC70 Package

o Ultra-Low Jitter

(2

o 0.5ns (min) Transition Time Minimizes Radiated

Noise

o 200Mbps Guaranteed Data Rate

o Fail-Safe Circuit Sets Output High for Undriven

Inputs (Open, Terminated, or Shorted)

o Low 10mA Supply Current

o Low 6mA Supply Current in Fail-Safe

o Conforms to ANSI/EIA/TIA-644 LVDS Standard

o High-Impedance Inputs and Outputs in

Power-Down Mode

Low-Jitter, Low-Noise LVDS

Repeater in an SC70 Package

________________________________________________________________ Maxim Integrated Products

1

GND

IN+

IN-

1

6

OUT+

OUT-

MAX9155

SC70

TOP VIEW

2

34

Pin Configuration

19-2213; Rev 0; 10/01

For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at

1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.

Ordering Information

PART

TEMP. RANGE

PIN-

PACKAGE

TOP

MARK

MAX9155EXT-T

-40°C to +85°C

6 SC70-6

ABC

Typical Operating Circuit appears at end of data sheet.