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Satellite IF Switch

19-5554; Rev 1; 10/11

+Denotes a lead(Pb)-free/RoHS-compliant package.

*EP = Exposed paddle.

Ordering Information

General Description

The MAX12005 satellite IF switch IC is designed for

multi-user applications supporting two quad universal

low-noise blocks (LNBs) to be matrix switched to four

satellite receivers. The system can be easily expanded

to accept 16 satellite IF inputs using the cascade option

and one additional satellite IF switch IC. A configuration

of eight satellite IF inputs to eight satellite receivers is

also possible by using two ICs and adding eight input

splitters. The insertion loss of these splitters can be com-

pensated by a +6dB or +12dB input gain select.

There are two ways to control the switch function.

Each IC contains four DiSEqCK 2.0 decoders and four

alternate tone/voltage decoders. The decoders use an

integrated trimmed oscillator, simplifying the MAX12005

implementation into any system. There are four opera-

tional modes, which include LNB mode (for use within

the LNB), cascade master mode, cascade slave mode,

and single mode.

The satellite IF switch is designed on an advanced SiGe

process and is available in a lead-free 48-pin TQFN

surface-mount package (7mm x 7mm).

Applications

Direct Broadcast Satellite Receivers

Satellite IF Distribution

L-Band Distribution

Features

S

8-Input-to-4-Output Matrix Switch

S

Expandable to 16 Inputs with Cascade Master/

Slave Option

S

950MHz to 2150MHz Operation

S

Greater than 30dB Switch Isolation

S

0/+6/+12dB Input Stage Gain Selection to

Compensate for Splitter Insertion Loss

Gain Step for All Input Stages Is Commonly

Controlled Through an Analog Select Pin

S

Four Integrated DiSEqC 2.0 Decoders with

Integrated Oscillator

S

Alternate Tone/Voltage Detection

S

ESD Protected to 2kV HBM

DiSEqC is a trademark of EUTELSAT.

EVALUATION

KIT

AVAILABLE

PART

TEMP RANGE

PIN-PACKAGE

MAX12005ETM+

-40NC to +85NC

48 TQFN-EP*