Product Specification
PE4270
Product Description
The PE4270 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 PE4270
provides for a cost effective and manufacturable solution vs.
mechanical relays.
The PE4270 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
Figure 2. Package Type
6-lead DFN
RF1
RF2
SPST CATV UltraCMOS™ Switch
DC - 3000 MHz
Features
•
Integrated 0.25 watt terminations
•
CTB performance of 90 dBc
•
High isolation: 90 dB at 5 MHz, 63 dB
at 1000 MHz
•
Low insertion loss: 0.5 dB at 50 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
75
CMOS
Control
Driver
75
CTRL
Table 1. Electrical Specifications @ +25 °C
(Z
S
= Z
L
= 75
Ω
)
Parameter
Operating Frequency
Insertion Loss
Isolation
Return Loss
1 dB Compression
CTB / CSO
Input IP2
Input IP3
2
2
3
2,4
1
Condition
DC – 50 MHz
1000 MHz
DC – 50 MHz
1000 MHz
5 - 1000 MHz,
V
CNTL
= 3.0V
1000 MHz
77 & 110 channels;
PO = 44 dBmV
1000 MHz
1000 MHz
Minimum
DC
Typical
0.50
0.70
Maximum
3000
0.65
0.85
Units
MHz
dB
dB
dB
dBm
dBc
dBm
dBm
85
60
15
28
90
63
16
30
-90
80
50
15
2
Video Feedthrough
Switching Time
mV
pp
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. 70-0148-03
│
www.psemi.com
©2005 Peregrine Semiconductor Corp. All rights reserved.
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