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PDF PE4270 Data sheet ( Hoja de datos )
| Número de pieza | PE4270 | |
| Descripción | SPST CATV UltraCMOS | |
| Fabricantes | Peregrine Semiconductor | |
| Logotipo |  |
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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
RF1 RF2
Product Specification
PE4270
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
Figure 2. Package Type
6-lead DFN
75
CMOS
75
Control
Driver
CTRL
Table 1. Electrical Specifications @ +25 °C (ZS = ZL = 75 Ω)
Parameter
Operating Frequency 1
Insertion Loss
Isolation
Return Loss
1 dB Compression 2,4
CTB / CSO
Input IP2 2
Input IP3 2
Video Feedthrough 3
Switching Time
Condition
DC – 50 MHz
1000 MHz
DC – 50 MHz
1000 MHz
5 - 1000 MHz,
VCNTL = 3.0V
1000 MHz
77 & 110 channels;
PO = 44 dBmV
1000 MHz
1000 MHz
Minimum
DC
85
60
15
28
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. 70-0148-03 │ www.psemi.com
Typical
0.50
0.70
90
63
16
30
-90
2
Maximum
3000
0.65
0.85
15
Units
MHz
dB
dB
dB
dBm
dBc
dBm
dBm
mVpp
µS
©2005 Peregrine Semiconductor Corp. All rights reserved.
Page 1 of 8
1 page  
PE4270
Product Specification
Evaluation Kit
The PE4270 EK board was designed to ease
customer evaluation of Peregrine’s high
performance SPST CATV MOSFET switch. RF1
is connected through a 75 Ω transmission line via
the top left F connector, J1. RF2 is connected
through a 75 Ω transmission line via the top right
F connector, J2. A 75 Ω through transmission line
is available via F connectors J3 and J4. This
transmission line can be used to estimate the loss
of the PCB over the environmental conditions
being evaluated. VDD is supplied via J6-2, while
the control logic voltage is supplied via J5-2. It is
the responsibility of the customer to determine
proper supply decoupling for their design
application. It has been observed that by
removing C1 and C2 from the evaluation board
has not shown to degrade RF performance.
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 4.6. Note that the predominate
mode for these transmission lines is coplanar
waveguide with a ground plane.
Figure 11. Evaluation Board Layouts
Peregrine Specification 101/0167 (with F connectors)
Figure 12. Evaluation Board Schematic
Peregrine Specification 102/0224
Document No. 70-0148-03 │ www.psemi.com
©2005 Peregrine Semiconductor Corp. All rights reserved.
Page 5 of 8
5 Page | ||
| Páginas | Total 8 Páginas | |
| PDF Descargar | [ Datasheet PE4270.PDF ] | |
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