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PE4257 Schematic ( PDF Datasheet ) - Peregrine Semiconductor

Teilenummer PE4257
Beschreibung SPDT Absorptive UltraCMOS DC
Hersteller Peregrine Semiconductor
Logo Peregrine Semiconductor Logo 




Gesamt 7 Seiten
PE4257 Datasheet, Funktion
www.DataSheet4U.com
Product Description
The PE4257 is a high-isolation UltraCMOS™ Switch designed
for wireless applications, covering a broad frequency range
from near 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 wireless application, the PE4257 provides
unprecedented isolation and integration.
The PE4257 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.
Product Specification
PE4257
50 SPDT Absorptive UltraCMOS™
DC – 3.0 GHz RF Switch
Features
50 characteristic impedance
Integrated 50 0.25 watt terminations
High input IP3 > +55 dBm
High isolation 64 dB at 1000 MHz
Low insertion loss: typically 0.75 dB
at 1000 MHz and 0.95 dB at 2000 MHz
LV CMOS two-pin control
Single +3 volt supply operation
Low current consumption: 8 µA
Figure 1. Functional Diagram
RFC
Figure 2. Package Type
4x4mm 20 Lead QFN
RF1 RF2
CMOS
Control
Driver
CTRL1 CTRL2
Table 1. Electrical Specifications @ +25 °C, VDD = 3.0 V (ZS = ZL = 50 )
Parameter
Operating Frequency1
Insertion Loss
Isolation Input to Output
Isolation Output to Output
Input IP2
Input IP3
Input 1dB Compression2
Switching Time
Video Feedthrough3
Condition
1000 MHz
2000 MHz
3000 MHz
1000 MHz
2000 MHz
3000 MHz
1000 MHz
2000 MHz
3000 MHz
5 MHz - 1000 MHz
5 MHz - 1000 MHz
1000 MHz
50% CTRL to 10 / 90 RF
5 MHz - 1000 MHz
Minimum
DC
61
46
40
57
54
42
50
29
Notes: 1. Device linearity will begin to degrade below 1 MHz.
2. Note Absolute Maximum ratings in Table 3.
3. Measured with a 1 ns risetime, 0/3 V pulse and 500 MHz bandwidth
Typical
0.75
0.95
1.2
64
50
44
63
60
48
80
55
31
2
Maximum
3000
0.95
1.15
1.4
15
Units
MHz
dB
dB
dB
dBm
dBm
dBm
µs
mVpp
Document No. 70-0166-02 www.psemi.com
©2005 Peregrine Semiconductor Corp. All rights reserved.
Page 1 of 7






PE4257 Datasheet, Funktion
Figure 10. Package Drawing
20-Lead 4x4 QFN
PE4257
Product Specification
INDEX AREA
2.00 X 2.00
4.00
- B - 2.00
0.25 C
-A-
0.435
0.18
DETAIL A
1. DIMENSION APPLIES TO METALLIZED TERMINAL AND IS MEASURED
BETWEEN 0.25 AND 0.30 FROM TERMINAL TIP.
2. COPLANARITY APPLIES TO THE EXPOSED HEAT SINK SLUG AS WELL
AS THE TERMINALS.
0.10 C
0.08 C
EXPOSED PAD &
TERMINAL PADS
SEATING
PLANE - C -
6
5
2.00
1.00
10
11
DETAIL A
1
20
15
16
EXPOSED PAD 2
0.23
1 0.10
CAB
Table 6. Ordering Information
Order Code
4257-01
4257-02
4257-00
4257-51
4257-52
Part Marking
4257
4257
PE4257-EK
4257
4257
Description
PE4257-20QFN 4x4mm-75A
PE4257-20QFN 4x4mm-3000C
PE4257-20QFN 4x4mm-EK
PE4257G-20QFN 4x4mm-75A
PE4257G-20QFN 4x4mm-3000C
©2005 Peregrine Semiconductor Corp. All rights reserved.
Page 6 of 7
Package
20-lead 4x4mm QFN
20-lead 4x4mm QFN
Evaluation Kit
Green 20-lead 4x4mm QFN
Green 20-lead 4x4mm QFN
Shipping Method
75 units / Tube
3000 units / T&R
1 / Box
75 units / Tube
3000 units / T&R
Document No. 70-0166-02 UltraCMOS™ RFIC Solutions

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