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PDF PE4240 Data sheet ( Hoja de datos )
| Número de pieza | PE4240 | |
| Descripción | SPST UltraCMOS CATV Switch DC | |
| Fabricantes | Peregrine Semiconductor | |
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Product Description
The PE4240 is a high-isolation MOSFET Switch designed for
CATV applications, covering a broad frequency range from
DC up to 1.3 GHz. 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
PE4240 provides for a cost effective and manufacturable
solution vs. mechanical relays.
The PE4240 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
RF1 RF2
Product Specification
PE4240
SPST UltraCMOS™ CATV Switch
DC - 1300 MHz
Features
• 75-ohm switch
• Non-reflective at RF1, open reflective
at RF2 when OFF
• Integrated 0.25 watt terminations
• CTB performance of 100dBc
• High isolation: 85 dB at 5 MHz, 47 dB
at 1 GHz
• Low insertion loss: 0.5 dB at 5 MHz,
0.75 dB at 1 GHz
• High input IP2: >80 dBm
• CMOS/TTL single-pin control
• Single +3 volt supply operation
Figure 2. Package Type
6-lead DFN
75 CMOS
Control
Driver
CTRL
Table 1. Electrical Specifications @ +25 °C (ZS = ZL = 75 Ω)
Parameter
Operating Frequency1
Operating Power
Insertion Loss
Isolation
Return Loss
Input 1 dB Compression2,4
Input IP22
CTB / CSO
Input IP32
Video Feedthrough3
Switching Time
Condition
On / Off
DC – 50 MHz
1000 MHz
DC – 50 MHz
1000 MHz
DC - 1000 MHz
1000 MHz
1000 MHz
77 & 110 channels;
PO = 44 dBmV
1000 MHz
Minimum
DC
71
44
14
30
80
50
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. 70-0067-03 │ www.psemi.com
Typical
0.5
0.75
85
47
20
33
-100
2
Maximum
1300
30/24
0.65
1.0
15
Units
MHz
dBm
dB
dB
dB
dBm
dBm
dBc
dBm
mVpp
µs
©2006 Peregrine Semiconductor Corp. All rights reserved.
Page 1 of 8
1 page  
PE4240
Product Specification
Evaluation Kit
The SPST Switch Evaluation Kit board was
designed to ease customer evaluation of the
PE4240 SPST switch. The RF1 port is connected
through a 75 Ω transmission line to the top left
BNC connector, J1. The RF2 port is connected
through a 75 Ω transmission line to the BNC
connector on the top right side of the board, J2. A
through transmission line connects BNC
connectors J3 and J4. This transmission line can
be used to estimate the loss of the PCB over the
environmental conditions being evaluated.
The board is constructed of a two metal layer FR4
material with a total thickness of 0.031”. The
bottom layer provides ground for the RF
transmission lines. The transmission lines were
designed using a coplanar waveguide model with
trace width of 0.021”, trace gaps of 0.030”,
dielectric thickness of 0.028”, metal thickness of
0.0021” and εR of 4.3. Note that the predominate
mode for these transmission lines is coplanar
waveguide with a ground plane.
J5 provides a means for controlling DC and digital
inputs to the device. Starting from the lower left
pin, the second pin to the right (J5-3) is connected
to the device VDD input. The fourth pin to the right
(J5-7) is connected to the device CTRL input. It is
the responsibility of the customer to determine
proper supply decoupling for their design
application. Removing these components from
the evaluation board has not been shown to
degrade RF performance.
Figure 11. Evaluation Board Layouts
Peregrine Specification 101/0079
Figure 12. Evaluation Board Schematic
Peregrine Specification 102/0081
Document No. 70-0067-03 │ www.psemi.com
©2006 Peregrine Semiconductor Corp. All rights reserved.
Page 5 of 8
5 Page | ||
| Páginas | Total 8 Páginas | |
| PDF Descargar | [ Datasheet PE4240.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| PE4240 | SPST UltraCMOS CATV Switch DC | Peregrine Semiconductor |
| PE4241 | SPDT UltraCMOS RF Switch | Peregrine Semiconductor |
| PE4242 | SPDT UltraCMOS RF Switch | Peregrine Semiconductor |
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