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Document No. 70-0071-06

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©2003-2009 Peregrine Semiconductor Corp. All rights reserved.

RF1

CTRL

RFC

CMOS

Control

Driver

ESD

ESD

The PE4237 RF Switch is designed to cover a broad range of

applications from near DC to 4000 MHz. This reflective switch

integrates on-board CMOS control logic driven by a single-pin,

low voltage CMOS or TTL control input. Using a nominal +3-

volt power supply, a 1 dB compression point of +32 dBm can

be achieved. The PE4237 also exhibits outstanding isolation

of better than 43 dB at 1000 MHz and is

offered in a small 3x3 mm DFN package.

The PE4237 is manufactured on Peregrine’s UltraCMOS™

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 UltraCMOS™ RF Switch

DC - 4000 MHz

Product Description

Figure 1. Functional Diagram

PE4237

Features

Single 3.0-volt power supply

Low insertion loss: 0.35 dB at

1000 MHz, 0.45 dB at 2000 MHz

High isolation of 43 dB at 1000 MHz,

35 dB at 2000 MHz

Typical 1 dB compression point of

+32 dBm

Single-pin CMOS or TTL logic control

Available in a 6-lead DFN package

Notes: 1. Device linearity will begin to degrade below 10 MHz.

2. The DC transient at the output of any port of the switch when the control voltage is switched from Low to

High or High to Low in a 50

Ω test set-up, measured with 1ns risetime pulses and 500 MHz bandwidth.

Figure 2. Package Type

6-lead DFN

Parameter

Conditions

Minimum

Typical

Maximum

Units

DC

4000

MHz

Insertion Loss

1000 MHz

2000 MHz

0.35

0.45

0.50

0.60

dB

dB

Isolation – RFC to RF1/RF2

1000 MHz

2000 MHz

41

33

43

35

dB

dB

Isolation – RF1 to RF2

1000 MHz

2000 MHz

33.5

26.5

35

28

dB

dB

Return Loss

1000 MHz

2000 MHz

19

10.5

24

14

dB

dB

‘ON’ Switching Time

50% CTRL to 0.1 dB final value, 2 GHz

200

ns

‘OFF’ Switching Time

50% CTRL to 25 dB isolation, 2 GHz

90

ns

15

Input 1 dB Compression

2000 MHz

30

32

dBm

Input IP3

2000 MHz, 17 dBm

50

dBm