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Document No. 70-0174-03 │ www.psemi.com ©2005 Peregrine Semiconductor Corp. All rights reserved.
Parameter Conditions
Typical
Units
Operation Frequency
1
DC - 3000 MHz
Insertion Loss
1000 MHz
2000 MHz
0.50
0.65
dB
dB
Isolation (RFC - RF1/RF2)
1000 MHz
2000 MHz
34.5
25
dB
dB
Return Loss
1000 MHz
2000 MHz
18.5
14
dB
dB
‘ON’ Switching Time
3
50% CTRL to 0.1 dB of final value, 1 GHz 0.725 µs
‘OFF’ Switching Time
3
50% CTRL to 25 dB isolation, 1 GHz 0.625 µs
Video Feedthrough
2,3
< 2 mV
pp

Input 1 dB Compression
3
1000 MHz 32 dBm
Input IP3
3
1000 MHz, 19 dBm input power 53 dBm
Isolation (RF1 - RF2)
1000 MHz
2000 MHz
40.5
28
dB
dB
Min
DC

32.5
23
38.5
26




30

Max
3000
0.60
0.75



1.5
1.3



RFC
RF1 RF2
CMOS
Control
Driver
V1 V2
The PE4273 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. It offers a simple
alternative solution to pin diode and mechanical relay switches.

The PE4273 SPDT Broadband RF Switch 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 Broadband UltraCMOS™
DC – 3 GHz RF Switch
Product Description
Figure 1. Functional Diagram
PE4273
Features
• Single-pin or complementary CMOS logic
control inputs
• High ESD tolerance of 1.5 kV
• Low insertion loss: 0.50 dB at 1000 MHz,
0.65 dB at 2000 MHz
• Isolation of 34.5 dB at 1000 MHz, 25 dB at
2000 MHz
• Typical input 1 dB compression point of
+32 dBm
• Ultra-small SC-70 package
Table 1. Electrical Specifications @ +25 °C, V
DD
= 3 V (Z
S
= Z
L
= 75 Ω )
Figure 2. Package Type
6-lead SC-70
Notes: 1. Device linearity will begin to degrade below 10 MHz.
2. Measured with a 1 ns risetime, 0/3 V pulse and 500 MHz bandwidth.
3. Measured in a 50 Ω system.