Preliminary Specification
PE4274
Product Description
The PE4274 is an SPDT UltraCMOS™ Switch designed for
Broadband applications such as CATV, DTV, Multi-Tuner
DVR (Digital Video Recorder), Set-top Box, PCTV and
Game Boxes. It offers high isolation and low insertion loss
in both a powered and a unique unpowered default state.
The PE4274 covers a broad frequency range from near DC
to beyond 2.2 GHz with a single positive supply and CMOS
control. The PE4274 provides a smaller, cost effective,
more reliable and manufacturable alternative to mechanical
relays in some set-top box applications.
The PE4274 is manufactured in Peregrine’s patented Ultra
Thin Silicon (UTSi®) CMOS process, offering the
performance of GaAs with the economy and integration of
conventional CMOS.
Figure 1. Functional Diagram
75Ω Terminated - 2.2 GHz SPDT
CATV UltraCMOS™ Switch
Featuring - Unpowered Operation
Features
• Unpowered operational state
• All-Off terminated state
• CTB performance of 90dBc
• High isolation 63 dB at 1 GHz
• Low insertion loss: typically 0.5 dB at
5 MHz, 0.8 dB at 1 GHz
• CMOS two-pin control
• Single +3 volt supply operation
• 1 kV ESD
• Low current consumption: 8 µA
Figure 2. Package Type
4x4mm 20 pin QFN
RFCommon
75
RF1
RF2
75
CMOS
Control
Driver
75
CTRL1 CTRL2
Peregrine Semiconductor Corp. ® │http://www.psemi.com
Copyright © Peregrine Semiconductor Corp. 2005
Page 1 of 12
