Page 1 of 10

RFC

RF1

RF2

CMOS

Control

Driver

CTRL

V

DD

The SP4272 RF Switch is designed for the TV tuner, PCTV, set

top box, DTV, DVR and general broadband applications. This

device offers industry leading broadband linearity, 1.5 kV ESD

tolerance and a simple CMOS interface. The device offers a

simple alternative solution to pin diode and mechanical relay

switches.

The SP4272 SPDT High Power RF Switch is manufactured on

SIPAT’s CMOS process, a patented variation of

silicon-on-insulator (SOI) technology on a sapphire substrate,

offering the performance of GaAs with the economy and

integration of conventional CMOS.

Product Specification

SPDT Broadband CMOS

DC – 3 GHz RF Switch

Product Description

Figure 1. Functional Diagram

SP4272

Features

0.6 dB at 2000 MHz

at 2000 MHz

+32 dBm

Notes:

1. Device linearity will begin to degrade below 5 MHz.

2. Measured with a 1 ns risetime, 0/3 V pulse and 500 MHz bandwidth.

3. Measured in a 50

Ω system.

Figure 2. Package Type

8-lead MSOP

Parameter

Conditions

Min

Typ

Max

Units

DC – 3000

MHz

Insertion Loss

1000 MHz

2000 MHz

0.5

0.6

0.6

0.7

dB

Isolation – RFC to RF1/RF2

1000 MHz

2000 MHz

41

31.5

43

33.5

dB

Isolation – RF1 to RF2

1000 MHz

2000 MHz

41

32

43

34

dB

Return Loss

1000 MHz

2000 MHz

19.5

16

dB

50% CTRL to 0.1 dB final value, 2 GHz

500

1000

ns

50% CTRL to 25 dB isolation, 2 GHz

500

1000

ns

<3

1000 MHz

30

32

dBm

1000 MHz, 20 dBm input power

52

dBm

Tel: +86-23-62808818

Fax: +86-23-62805284

www.sipatsaw.com / sawmkt@sipat.com