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PDF PE4256 Data sheet ( Hoja de datos )
| Número de pieza | PE4256 | |
| Descripción | SPDT CATV UltraCMOS Switch DC | |
| Fabricantes | Peregrine Semiconductor | |
| Logotipo |  |
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Product Description
The PE4256 is an UltraCMOS™ Switch designed for CATV
applications, covering a broad frequency range from DC up to
3000 MHz. This single-supply SPDT switch integrates a two-
pin CMOS control interface. It also provides low insertion loss
with extremely low bias requirements while operating on a
single 3-volt supply. In a typical CATV application, the PE4256
provides for a cost effective and manufacturable solution when
compared to mechanical relays.
The PE4256 is manufactured in Peregrine’s patented Ultra
Thin Silicon (UTSi®) CMOS process, offering the performance
of GaAs with the economy and integration of conventional
CMOS.
Figure 1. Functional Diagram
RFC
RF1
75
RF2
Product Specification
PE4256
75 Ω SPDT CATV UltraCMOS™ Switch
DC - 3.0 GHz
Features
• 75 Ω characteristic impedance
• Integrated 75 Ω 0.25 watt terminations
• CTB performance of -90 dBc
• High isolation 65 dB at 1000 MHz
• Low insertion loss: typically 0.5 dB at
5 MHz, 0.9 dB at 1000 MHz
• High input IP3: >50 dBm
• CMOS two-pin control
• Single +3 volt supply operation
• Low current consumption: 8 µA
• Unique all off terminated mode
• 4x4 mm QFN package
Figure 2. Package Type
20-lead 4x4 mm QFN
75
CMOS
75
Control
Driver
C1 C2
Table 1. Electrical Specifications @ +25 °C, VDD = +3 V (ZS = ZL = 75 Ω)
Parameter
Operating Frequency1
Insertion Loss
Condition
5 MHz – 250 MHz
250 MHz – 750 MHz
750 MHz – 1000 MHz
1000 MHz – 2200 MHz
Minimum
DC
Isolation
Input IP22
Input IP32
Input 1dB Compression2
5 MHz – 250 MHz
250 MHz – 750 MHz
750 MHz – 1000 MHz
1000 MHz – 2200 MHz
5 MHz - 1000 MHz
5 MHz - 1000 MHz
1000 MHz
75
65
62
49
50
29
CTB / CSO
Switching Time
Video Feedthrough3
77 & 110 channels;
Power Out = 44 dBmV
50% CTRL to 10/90% RF
5 MHz - 1000 MHz
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
Document No. 70-0144-01 │ www.psemi.com
Typical
0.5
0.8
0.9
1.1
80
70
65
52
80
55
31
-90
2
Maximum
3000
0.6
0.95
1.1
1.3
15
Units
MHz
dB
dB
dBm
dBm
dBm
dBc
µs
mVpp
©2005 Peregrine Semiconductor Corp. All rights reserved.
Page 1 of 8
1 page  
PE4256
Product Specification
Typical Performance Data from -40°C to +85°C, 75 Ω Impedance
Figure 6. Insertion Loss (RFC to RF1 or RF2)
-0.2
-0.4
-0.6
-0.8
-1
-1.2
-1.4
-1.6
-1.8
0
25C
-40C
85C
500
1000
1500
2000
2500
3000
Frequency (MHz)
Figure 7. Input to Output Isolation
RFC - RF1 (RF2 CLOSED)
RFC - RF2 (RF1 CLOSED)
-40
-50
-60
-70
-80
-90
-100
0
500
1000
1500
2000
2500
3000
Frequency (MHz)
Figure 8. Input to Output Isolation
RFC - RF1 (RF2 OPEN)
RFC - RF2 (RF1 OPEN)
-40
-50
-60
-70
-80
-90
-100
0
500
1000
1500
2000
2500
3000
Frequency (MHz)
Figure 9. Isolation – RF1 To RF2
RF1 - RF2 (RF1 Thru)
RF1 - RF2 (RF2 Thru)
RF1 - RF2 (RF1 & 2 OPEN)
-40
-50
-60
-70
-80
-90
-100
0
500
1000
1500
2000
2500
3000
Frequency (MHz)
Document No. 70-0144-01 │ www.psemi.com
©2005 Peregrine Semiconductor Corp. All rights reserved.
Page 5 of 8
5 Page | ||
| Páginas | Total 8 Páginas | |
| PDF Descargar | [ Datasheet PE4256.PDF ] | |
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