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Product Specification
PE4271
Product Description
The PE4271 is a is a high-isolation Switch designed for CATV
applications, covering a broad frequency range from near DC
up to 3000 MHz. This single-supply SPST switch offers a
single-pin CMOS control interface with industry leading CTB
performance. It also provides low insertion loss, high isolation
and extremely low bias requirements while operating on a
single 3-volt supply. In a typical CATV application, the PE4271
provides for a cost effective and manufacturable solution vs.
mechanical relays.
The PE4271 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.
SPST CATV UltraCMOS? Switch
DC - 3000 MHz
Features
Integrated 0.25 watt terminations
CTB performance of 90 dBc
High isolation: 85 dB at 5 MHz, 60 dB
at 1000 MHz
Low insertion loss: 0.5 dB at 5 MHz,
0.70 dB at 1000 MHz
High input IP2: >80 dBm
CMOS/TTL single-pin control
Single +3-volt supply operation
Extremely low bias: 8 μ A @ 3 V
Available in a 6-lead DFN package
Figure 1. Functional Diagram
Figure 2. Package Type
RF1
ESD
75 ?
CMOS
ESD
RF2
6-lead DFN
Control
Driver
CTRL
Table 1. Electrical Specifications @ +25 °C (Z S = Z L = 75 ? )
Parameter
Condition
Minimum
Typical
Maximum
Units
Operating Frequency
Insertion Loss
1
DC – 50 MHz
1000 MHz
DC
0.50
0.70
3000
0.65
0.85
MHz
dB
Isolation
Return Loss
Input 1 dB Compression 2,4
DC – 50 MHz
1000 MHz
DC - 1000 MHz
V CTRL = 3.0V
1000 MHz
80
58
15
30
85
60
16
33
dB
dB
dBm
CTB / CSO
Input IP2 2
77 & 110 channels;
PO = 44 dBmV
1000 MHz
80
-90
dBc
dBm
Input IP3
2
1000 MHz
50
dBm
Video Feedthrough 3
Switching Time
Notes: 1. Device linearity will begin to degrade below 1 MHz.
2. Measured in a 50 ? system.
3. Measured with a 1 ns risetime, 0/3 V pulse and 500 MHz bandwidth.
4. Note Absolute Maximum ratings in Table 3.
2
15
mV pp
μS
Document No. 70-0149-05 │ www.psemi.com
?2005-2009 Peregrine Semiconductor Corp. All rights reserved.
Page 1 of 8
Peregrine products are protected under one or more of the following U.S. Patents: http://patents.psemi.com
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