General Description

The MAX9174/MAX9175 are 670MHz, low-jitter, low-

skew 1:2 splitters ideal for protection switching, loop-

back, and clock and signal distribution. The devices

ensures reliable operation in high-speed links that are

highly sensitive to timing errors.

The MAX9174 has a fail-safe LVDS input and LVDS out-

puts. The MAX9175 has an anything differential input

(CML/LVDS/LVPECL) and LVDS outputs. The outputs

can be put into high impedance using the power-down

inputs. The MAX9174 features a fail-safe circuit that dri-

ves the outputs high when the input is open, undriven

and shorted, or undriven and terminated. The MAX9175

has a bias circuit that forces the outputs high when the

input is open. The power-down inputs are compatible

with standard LVTTL/LVCMOS logic. The power-down

+ 1V. The MAX9174/MAX9175 are available in 10-pin

µMAX and 10-lead thin QFN with exposed pad pack-

ages, and operate from a single +3.3V supply over the

-40

°C to +85°C temperature range.

Applications

Protection Switching

Loopback

Clock Distribution

Features

o +3.3V Supply

o LVDS Fail-Safe Inputs (MAX9174)

o Anything Input (MAX9175) Accepts Differential

CML/LVDS/LVPECL

o Low-Power CMOS Design

o 10-Lead µMAX and Thin QFN Packages

o -40°C to +85°C Operating Temperature Range

o Conform to ANSI TIA/EIA-644 LVDS Standard

o IEC 61000-4-2 Level 4 ESD Rating

670MHz LVDS-to-LVDS and Anything-to-LVDS

1:2 Splitters

________________________________________________________________ Maxim Integrated Products

1

Ordering Information

CLK IN

ASIC

CLOCK DISTRIBUTION

CLK IN

ASIC

CLK1

CLK2

MAX9174

MAX9174

MAX9176

MAX9176

Typical Application Circuit

19-2827; Rev 0; 4/03

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.

PART

TEMP RANGE

PIN-PACKAGE

MAX9174EUB

-40

°C to +85°C

10 µMAX

MAX9174ETB*

-40

°C to +85°C

10 Thin QFN-EP**

MAX9175EUB

-40

°C to +85°C

10 µMAX

MAX9175ETB*

-40

°C to +85°C

10 Thin QFN-EP**

*Future product—contact factory for availability.

**EP = Exposed paddle.

Functional Diagram and Pin Configurations appear at end

of data sheet.