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Figure 1. Functional Diagram

Figure 2. Package Photo

24-lead 4x4x0.85 mm QFN Package

Custom Specification

SP5T Absorptive Silicon-on-Sapphire

High-Isolation RF Switch

SP42450

Features

-Sapphire device

4x4x0.85 mm QFN package

The SP42450 is a linearity enhanced Absorptive SP5T RF Switch

developed on the Silicon-on-Sapphire (SOS) process technology. This

general purpose switch is comprised of five symmetric RF ports and

has very high isolation. An on-chip CMOS decode logic facilitates a

three-pin low voltage CMOS control interface and an optional

capacitor requirements make this the ultimate in integration and

ruggedness.

The design methodology, used to create the SP5T RF Switch, is a

technology that enhances linearity and has exceptional harmonics

performance. It is an innovative feature of the Silicon-on-Sapphire

process, providing performance superior to GaAs with the economy

and integration of conventional CMOS.

Product Description

RF2

RF4

RF5

CMOS

Control/Driver

and ESD

V1 V2

RF1

V3

RF3

ESD

50



ESD

50



ESD

50



ESD

50



ESD

50



RFC

Vss