Product Specification
PE4244
SPDT UltraCMOS™ RF Switch
Product Description
The PE4244 UltraCMOS™ RF Switch is designed to cover a
broad range of applications from DC to 3.0 GHz. This switch
integrates on-board CMOS control logic with a low voltage
CMOS compatible control input. Using a +3-volt nominal power
supply voltage, a 1 dB compression point of +27 dBm can be
achieved. The PE4244 also exhibits excellent isolation of 39 dB
at 1.0 GHz and is offered in a small 8-lead MSOP package.
The PE4244 UltraCMOS™ RF Switch 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
RFC
Features
•
•
•
•
•
•
Single +3.0-volt Power Supply
Low Insertion loss: 0.60 dB up to
2.0 GHz
High isolation of 39 dB at 1.0 GHz,
29 dB at 2.0 GHz
Typical 1 dB compression of +27 dBm
Single-pin CMOS logic control
Packaged in 8-lead MSOP
Figure 2. Package Type
8-lead MSOP
RF1
RF2
CMOS
Control
Driver
CTRL
Table 1. Electrical Specifications @ +25 °C, V
DD
= 3 V
(Z
S
= Z
L
= 50
Ω)
Parameter
Operation Frequency
1
Insertion Loss
Isolation – RFC to RF1/RF2
Isolation – RF1 to RF2
Return Loss
‘ON’ Switching Time
‘OFF’ Switching Time
Video Feedthrough
2
Input 1 dB Compression
Input IP3
Notes:
2000 MHz
2000 MHz, 14dBm
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.
26
43
1000 MHz
2000 MHz
1000 MHz
2000 MHz
1000 MHz
2000 MHz
1000 MHz
2000 MHz
CTRL to 0.1 dB final value, 2 GHz
CTRL to 25 dB isolation, 2 GHz
Conditions
Minimum
DC
Typical
0.60
0.60
39
29
36
28
20
25
200
90
15
27
45
Maximum
3000
0.75
0.75
Units
MHz
dB
dB
dB
dB
dB
dB
dB
dB
ns
ns
mV
pp
dBm
dBm
37
27
34
26
19
22
Document No. 70-0103-03
│
www.psemi.com
©2005 Peregrine Semiconductor Corp. All rights reserved.
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