75Ω SP2T RF Switch

5MHz to 3000MHz

F2971

Datasheet

1

Rev O, April 24, 2018

Description

The F2971 is a high reliability, low insertion loss, 75Ω absorptive

SP2T RF switch designed for a multitude of cable systems and RF

applications. This device covers a broad frequency range from

5MHz to 3000MHz. In addition to providing low insertion loss, the

F2971 also delivers excellent linearity and isolation performance

while providing a 75Ω termination for the unselected port.

The F2971 uses a single positive supply voltage and supports 3.3V

logic.

Competitive Advantage

The F2971 provides broadband RF performance to support the

CATV market along with high power handling and high isolation.



Low insertion loss



High isolation



Excellent linearity



Extended temperature: -40°C to +105°C

Typical Applications



CATV/Broadband applications



Headend



Fiber/HFC distribution nodes



Distribution amplifiers



Switch matrix



DTV tuner input select



DVR/PVR/Set-top box



CATV test equipment

Features



Low insertion loss: 0.31dB at 1200MHz



High Isolation: 71dB at 1200MHz (RF1/RF2 to RFC)



High IIP3: 67dBm at 5MHz



Operating Temperature: -40°C to +105°C



4mm x 4mm, 20-pin LQFN package

Block Diagram

Figure 1. Block Diagram

RF2

RF1

RFC

C1

75

Ω

75

Ω

C2

75

Ω