Product Specification
PE4245
Product Description
The PE4245 RF Switch is designed to cover a broad range of
applications from near DC to 4000 MHz. 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 PE4245 also exhibits excellent isolation of
better than 42 dB at 1000 MHz and is offered in a small 3x3
mm DFN package.
The PE4245 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.
Figure 1. Functional Diagram
RFC
SPDT UltraCMOS™ RF Switch
DC - 4000 MHz
Features
•
Single 3.0 V Power Supply
•
Low insertion loss: 0.6 dB at 1000 MHz,
0.7 dB at 2000 MHz
•
High isolation of 42 dB at 1000 MHz,
32 dB at 2000 MHz
•
Typical 1 dB compression of +27 dBm
•
Single-pin CMOS logic control
•
Available in a 6-lead DFN package
Figure 2. Package Type
6-lead DFN
RF1
RF2
CMOS
Control
Driver
CTRL
Table 1. Electrical Specifications @ +25 °C, V
DD
= 3 V
(ZS = ZL = 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
2000 MHz
2000 MHz, 14 dBm
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
39
30
34
27
21
20
Conditions
Minimum
DC
Typical
0.6
0.7
42
32
36
29
23
22
200
90
15
27
45
Maximum
4000
0.75
0.85
Units
MHz
dB
dB
dB
dB
dB
dB
dB
dB
ns
ns
mV
pp
dBm
dBm
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.
Document No. 70-0104-04
│
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©2005 Peregrine Semiconductor Corp. All rights reserved.
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