pe4256 Peregrine Semiconductor Inc., pe4256 Datasheet

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pe4256

Manufacturer Part Number
pe4256
Description
75 ? Spdt Catv Ultracmos? Switch Dc - 3.0 Ghz
Manufacturer
Peregrine Semiconductor Inc.
Datasheet

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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
Table 1. Electrical Specifications @ +25 °C, V
Notes:
Document No. 70-0144-01 / www.psemi.com
Operating Frequency
Insertion Loss
Isolation
Input IP2
Input IP3
Input 1dB Compression
CTB / CSO
Switching Time
Video Feedthrough
RF1
Parameter
2
2
1. Device linearity will begin to degrade below 1 MHz.
2. Measured in a 50 system.
3. Measured with a 1 ns risetime, 0/3 V pulse and 500 MHz bandwidth
75
75
3
1
2
C1
Control
CMOS
Driver
RFC
C2
5 MHz – 250 MHz
250 MHz – 750 MHz
750 MHz – 1000 MHz
1000 MHz – 2200 MHz
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
77 & 110 channels;
Power Out = 44 dBmV
50% CTRL to 10/90% RF
5 MHz - 1000 MHz
75
Condition
RF2
DD
= +3 V (Z
Minimum
DC
75
65
62
49
50
29
S
= Z
L
= 75 Ÿ)
©2005 Peregrine Semiconductor Corp. All rights reserved.
Figure 2. Package Type
20-lead 4x4 mm QFN
Typical
Features
75 Ÿ SPDT CATV UltraCMOS™ Switch
DC - 3.0 GHz
PE4256
0.5
0.8
0.9
1.1
-90
80
70
65
52
80
55
31
2
75 Ÿ characteristic impedance
Integrated 75 Ÿ 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
Product Specification
Maximum
3000
0.95
0.6
1.1
1.3
15
Page 1 of 8
Units
mV
MHz
dBm
dBm
dBm
dBc
dB
dB
µs
pp

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pe4256 Summary of contents

Page 1

... 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 typical CATV application, the PE4256 provides for a cost effective and manufacturable solution when compared to mechanical relays. ...

Page 2

... Ground Latch-Up Avoidance Ground Unlike conventional CMOS devices, UltraCMOS™ RF I/O devices are immune to latch-up. Ground Switching Frequency Ground The PE4256 has a maximum 25 kHz switching rate when the internal negative voltage generator is used (pin 18=GND). Ground Supply Parameter/Condition Min V Power supply voltage -0 ...

Page 3

... High Table 6. Termination Truth Table C1 C2 Low Low Low High High Low High High Notes: 1. The operation of the PE4256 is not supported or characterized in the C1=V 2. “X” denotes termination enabled. Document No. 70-0144-01 / www.psemi.com C2 RFC – RF1 Low OFF High OFF Low ON 1 High N/A RFC – ...

Page 4

... Evaluation Kit The SPDT Switch Evaluation Kit was designed to ease customer evaluation of the PE4256 SPDT switch. The RF common port (RFC) is connected through a 75 transmission line to J2. Port 1 and Port 2 are connected through 75 transmission lines to J1 and J3. A through transmission line connects F connectors J4 and J5. This ...

Page 5

... PE4256 Product Specification Typical Performance Data from -40°C to +85° Impedance Figure 6. Insertion Loss (RFC to RF1 or RF2) 25C -40C 85C -0.2 -0.4 -0.6 -0.8 -1 -1.2 -1.4 -1.6 -1.8 0 500 1000 1500 Frequency (MHz) Figure 8. Input to Output Isolation RFC - RF1 (RF2 OPEN) RFC - RF2 (RF1 OPEN) -40 -50 -60 -70 -80 -90 ...

Page 6

... System Impedance 2000 2500 3000 Document No. 70-0144-01 / UltraCMOS™ RFIC Solutions Product Specification RFC - RF1 CLOSED RF1 TERMINATED 0 500 1000 1500 2000 Frequency (MHz) Input IP3 1dB Compression 0 500 1000 1500 2000 Frequency (MHz) PE4256 2500 3000 2500 3000 ...

Page 7

... Document No. 70-0144-01 / www.psemi.com INDEX AREA - B - 2.00 X 2.00 0.25 C 0.10 C 0.08 C EXPOSED PAD & TERMINAL PADS DETAIL A Description PE4256-20QFN 4x4 mm-75A PE4256-20QFN 4x4 mm-3000C PE4256-20QFN 4x4 mm-EK PE4256G-20QFN 4x4 mm-75A PE4256G-20QFN 4x4 mm-3000C 4.00 2. SEATING - C - PLANE 2.00 1. EXPOSED PAD 2 0.23 0. Package ...

Page 8

... Peregrine assumes no liability for damages, including consequential or incidental damages, arising out of the use of its products in such applications. The Peregrine name, logo, and UTSi are registered trademarks and UltraCMOS is a trademark of Peregrine Semiconductor Corp. Document No. 70-0144-01 / UltraCMOS™ RFIC Solutions PE4256 Product Specification ...

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