Product Specification
PE4235
Product Description
The PE4235 RF Switch is designed to cover a broad range of
applications from near DC to 4000 MHz. This single-supply
reflective switch integrates on-board CMOS control logic
driven by a simple, single-pin CMOS or TTL control input.
Using a nominal +3-volt power supply, a 1 dB compression
point of +15 dBm can be achieved. The PE4235 also exhibits
outstanding isolation of better than 40 dB at 1000 MHz and is
offered in a small 3x3 mm DFN package.
The PE4235 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-volt power supply
•
Low insertion loss: 0.40 dB at
1000 MHz, 0.45 dB at 2000 MHz
•
High isolation of 40 dB at 1000 MHz,
30 dB at 2000 MHz
•
Typical 1 dB compression point of
+15 dBm
•
Single-pin CMOS or TTL 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
Operating Frequency
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, 5 dBm
13.5
32.5
1
Conditions
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
Minimum
DC
Typical
0.40
0.45
Maximum
4000
0.50
0.60
Units
MHz
dB
dB
dB
dB
dB
dB
dB
dB
ns
ns
mV
pp
dBm
dBm
39
29
36
28
20
17
40
30
37
29
22
19
200
90
2.5
15
36
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. 70-0069-03
│
www.psemi.com
©2005 Peregrine Semiconductor Corp. All rights reserved.
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