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Document No. 70-0148-03

│ www.psemi.com

©2005 Peregrine Semiconductor Corp. All rights reserved.

RF1

RF2

CTRL

75

75

CMOS

Control

Driver

The PE4270 is a is a high-isolation Switch designed for CATV

applications, covering a broad frequency range from near DC

up to 3000 MHz. This single-supply SPST switch offers a

single-pin CMOS control interface with industry leading CTB

performance. It also provides low insertion loss, high isolation

and extremely low bias requirements while operating on a

single 3-volt supply. In a typical CATV application, the PE4270

provides for a cost effective and manufacturable solution vs.

mechanical relays.

The PE4270 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

SPST CATV UltraCMOS™ Switch

DC - 3000 MHz

Product Description

Figure 1. Functional Diagram

PE4270

Features

at 1000 MHz

0.70 dB at 1000 MHz

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

2. Measured in a 50

Ω system.

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

4. Note Absolute Maximum ratings in Table 3.

Figure 2. Package Type

6-lead DFN

Parameter

Condition

Minimum

Typical

Maximum

Units

Operating Frequency

1

DC

3000

MHz

Insertion Loss

DC – 50 MHz

1000 MHz

0.50

0.70

0.65

0.85

dB

Isolation

DC – 50 MHz

1000 MHz

85

60

90

63

dB

Return Loss

5 - 1000 MHz,

15

16

dB

1 dB Compression

2,4

1000 MHz

28

30

dBm

CTB / CSO

77 & 110 channels;

PO = 44 dBmV

-90

dBc

Input IP2

2

1000 MHz

80

dBm

Input IP3

2

1000 MHz

50

dBm

Video Feedthrough

3

15

Switching Time

2

µS