4271-00 查看數據表（PDF） - Peregrine Semiconductor
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4271-00 Datasheet PDF : 8 Pages
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Product Specification
PE4271
Product Description
SPST CATV UltraCMOS™ Switch
DC - 3000 MHz
The PE4271 is a is a high-isolation Switch designed for CATV
Features
applications, covering a broad frequency range from near DC
Integrated 0.25 watt terminations
up to 3000 MHz. This single-supply SPST switch offers a
single-pin CMOS control interface with industry leading CTB
CTB performance of 90 dBc
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.
E 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
T of GaAs with the economy and integration of conventional
CMOS.
Figure 1. Functional Diagram
E RF1
ESD
RF2
ESD
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 µA @ 3 V
Available in a 6-lead DFN package
Figure 2. Package Type
6-lead DFN
L 75Ω
CMOS
Control
Driver
CTRL
O Table 1. Electrical Specifications @ +25 °C (ZS = ZL = 75 Ω)
Parameter
Condition
Minimum
Operating Frequency1
DC
S Insertion Loss
DC – 50 MHz
1000 MHz
Isolation
DC – 50 MHz
1000 MHz
80
58
B Return Loss
DC - 1000 MHz
VCTRL = 3.0V
15
Input 1 dB Compression2,4
1000 MHz
30
O CTB / CSO
77 & 110 channels;
PO = 44 dBmV
Typical
0.50
0.70
85
60
16
33
-90
Maximum
3000
0.65
0.85
Units
MHz
dB
dB
dB
dBm
dBc
Input IP22
1000 MHz
80
dBm
Input IP32
1000 MHz
50
dBm
Video Feedthrough3
15
mVpp
Switching Time
2
µS
Notes: 1. Device linearity will begin to degrade below 1 MHz.
2. Measured in a 50 Ω system.
3. Measured with a 1 ns risetime, 0/3 V pulse and 500 MHz bandwidth.
4. Note Absolute Maximum ratings in Table 3.
Document No. 70-0149-05 │ www.psemi.com
©2005-2009 Peregrine Semiconductor Corp. All rights reserved.
Peregrine products are protected under one or more of the following U.S. Patents: http://patents.psemi.com
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