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Document No. 70-0173-03 www. pse mi.com ©2005 Peregrine Semiconductor Corp. All rights reserved.
RFC
RF1 RF2
CMOS
Control
Driver
CTRLV
DD
The PE4272 RF Switch is designed for the TV tuner, PCTV, set
top box, DTV, DVR and general broadband applications. This
device offers industry leading broadband linearity, 1.5 kV ESD
tolerance and a simple CMOS interface. The device offers a
simple alternative solution to pin diode and mechanical relay
switches.
The PE4272 SPDT High Power RF Switch is manu factured on
Peregrine’s UltraCMOS™ process, a patented variation of
silicon -on-insulator (SOI ) technology on a sapphire substrate,
off eri ng th e per formance of GaAs wi th th e economy and
integration of conventional CMOS.
Pro duct Specificat ion
SPDT Broadband UltraCMOS™
DC – 3 GHz RF Switch
Product Description
Figure 1. Functional Diagram
PE4272
Features
High ESD tolerance of 1.5 kV
Single-pin CMOS logic control
Low i nser ti o n l oss : 0.5 dB at 10 00 MHz ,
0.6 dB at 2000 MHz
Isolation of 43 dB at 1000 MHz, 33 .5 dB
at 2000 MH z
Typical input 1 dB compression point of
+32 dBm
Small 8-lead MSOP package
Notes: 1. Device linearity will begin to degrade below 5 MHz.
2. Me as ur ed wit h a 1 ns ris et i m e, 0/3 V puls e and 50 0 MH z ban dw i dt h.
3. Measured in a 50 system.
Fig ur e 2. Pac kage Typ e
Table 1. Electrical Specifications @ +25 °C, VDD = 3 V (ZS = ZL = 75 )
8-lead MSOP
Parameter Conditions Min Typ Max Units
Operation Frequency1 DC – 3000 MH z
Insertion Loss 1000 MH z
2000 MH z 0.5
0.6 0.6
0.7 dB
Isolation – RFC to RF1/RF2 1000 MH z
2000 MHz 41
31.5 43
33.5 dB
Isolati on – R F1 t o RF2 1000 MH z
2000 MH z 41
32 43
34 dB
Return Loss 1000 MH z
2000 MH z 19.5
16 dB
‘ON’ Switching Time3 50% CTRL to 0.1 dB final value, 2 GHz 500 1000 ns
‘OFF’ Switching Time3 50% CTRL to 25 dB isolation, 2 GHz 500 1000 ns
Video Feedth rough2,3 <3 mVpp
Input 1 dB Co mpr ess io n3 1000 MHz 30 32 dBm
Input IP3 3 1000 MHz, 20 dBm input power 52 dBm
Product Specification
PE4272
Page 2 of 11
©2005 Peregrine Semiconductor Corp. All rights reserved. Document No. 70-0173-03 UltraCMOS™ RFIC Solutions
Table 2 . Pin Descriptions
Table 4. Absolute Maximum Ratings
Electrostatic Discharge (ESD) Precautions
When hand ling this UltraCMOS ™ devi ce, observe
the same precautions that you would use with
other ESD-sensitive devices. Although this device
contains circuitry to protect it from damage due to
ESD, precautions should be taken to avoid
exceeding the rating specified in Table 4.
Latc h-Up Avoidance
Unlike conventional CMO S device s, UltraCMOS™
devices are immune to latch-up.
Table 3. Operating Ranges
Note: 4. All RF pins must be DC blocked with an external
series capacitor or held at 0 VDC.
Figure 3. Pin Configuration (Top View)
4272
1
2
3
4
8
7
6
5
V
DD
CTRL
GND
RFC
RF1
GND
GND
RF2
Pin
No. Pin
Name Description
1 VDD Nominal +3 V supply connection.
2 CTRL
CMOS lo gic level:
High = RFC to RF 1 signal path
Low = RFC to RF2 signal path
3 GND
Ground connection. Traces should be
physically short and connected to ground
plane for best performance.
4 RFC RF Common port.4
5 RF2 RF2 port.4
6 GND
Ground Connection. Traces should be
physically short and connected to ground
plane for best performance.
7 GND
Ground Connection. Traces should be
physically short and connected to ground
plane for best performance.
8 RF1 RF1 port.4
Symbol Parameter/Conditions Min Max Units
VDD Power supply voltage -0.3 4.0 V
VI Voltage on any input -0.3 VDD+
0.3 V
TST Storage temperature range -65 150 °C
PIN Input po wer ( 5 0 ) 34 dBm
VESD ESD voltage (HBM, ML_STD
883 Method 30 15 . 7) 1500 V
Parameter Min Typ Max Units
VDD Power Supply Voltage 2.7 3.0 3.3 V
IDD Power Su pply Cu rrent
(VDD = 3 V, CTRL = 3 V) 8 20 µA
Control Voltage High 0.7xVDD V
Control Voltage Low 0.3xVDD V
Operating temperature
range -40 85 °C
Absolute Maximum Ratings are those values
listed in the above table. Exceeding these values
may c aus e permanent dev i ce damag e.
Functional operation should be restricted to the
limits in the Operating Ranges table. Exposure to
absolute maximum ratings for exte nded periods
may a ffect device reliability.
Product Specification
PE4272
©2005 Peregrine Semiconductor Corp. All rights reserved. Document No. 70-0173-03 www. pse mi.com
Page 3 of 11
Control Voltages Signal Path
Pin 1 (VDD) = VDD
Pin 2 (CTRL) = High RFC to RF1
Pin 1 (VDD) = VDD
Pin 2 (CTRL) = Low RFC to RF2
Table 5. Single-pin Control Logic Truth Table
Table 6. Complementary-pin Control Logic
Truth Table
Control Voltages Signal Path
Pin 1 (VDD) = Low
Pin 2 (CTRL) = High RFC to RF1
Pin 1 (VDD) = H i gh
Pin 2 (CTRL) = Low RFC to RF2
Control Logic Input
The PE4272 is a versatile RF CMOS switch that
supports two operatin g control modes; single-pin
control mode and complementary-pin control
mode.
Single-pin c o ntr ol m od e enables the switch to
operate with a single control pin (pin 2) supporting
a +3-volt CMOS logic input, and requires a
dedicated +3-volt power supply connection (pin 1).
Thi s mo de of op er ation red uce s the number of
control lines required an d simplifies the switch
control interface typically de rived from a CMOS
µProcessor I/O port.
Complementary-pin control mode allo ws the
switch to operate using complementary control
pins CTRL and VDD (pins 2 & 1), that can be
directly driven by +3-volt CMOS logic or a suitab le
µProcessor I/O port. This enables the PE4272 to
operate in positive control voltage mode within the
PE4272 operating limi ts .
Product Specification
PE4272
Page 4 of 11
©2005 Peregrine Semiconductor Corp. All rights reserved. Document No. 70-0173-03 UltraCMOS™ RFIC Solutions
Evaluation Kit
The SPDT Switch Evaluation Kit board was
designed to ease customer evaluation of the
PE4272 SPDT switch. The RF common port is
connected through a 75 transmission line to the
bottom F connector, J2. Port 1 and Port 2 are
connected through 75 transmission lines to two F
connectors on either side of the board, J1 and J3. A
through transmission line connects F connectors J4
and J5. 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 with ground plane model using
a trace width of 0.021”, trace gaps of 0.030”,
dielectric thickness of 0.028”, copper thickness of
0.0021” and r of 4.3.
J6 provides a means for controlling the DC inputs to
the device. The lower right pin (J6-2) is connected
to the device CTRL input. The upper right pin (J6-1)
is connected to the device VDD input. Footprints for
decoupling capacitors are provided on both CTRL
and VDD traces . It is th e respon s ibility 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 4. Evaluation Board Layouts
Figure 5. Evaluation Board Schematic
Peregr ine s pec ificat ion 102/0309
Peregr ine s pec ificat ion 101/0243
Product Specification
PE4272
©2005 Peregrine Semiconductor Corp. All rights reserved. Document No. 70-0173-03 www. pse mi.com
Page 5 of 11
Figure 7. Insertion Loss: RFC-RF1 @ 3 V Figure 6. Insertion Loss: RFC-RF1 @ 25 °C
Typical Performance Data
Figure 8. Insertion Loss: RFC-RF2 @ 25 °C Figure 9. Insertion Loss: RFC-RF2 @ 3 V
Product Specification
PE4272
Page 6 of 11
©2005 Peregrine Semiconductor Corp. All rights reserved. Document No. 70-0173-03 UltraCMOS™ RFIC Solutions
Figure 11. Isolation: RFC-RF1 @ 3 V Figure 10. Isolation: RFC-RF1 @ 25 °C
Typical Performance Data
Figure 12. Isolation: RFC-RF2 @ 25 °C Figure 13. Isolation: RFC-RF2 @ 3 V
Product Specification
PE4272
©2005 Peregrine Semiconductor Corp. All rights reserved. Document No. 70-0173-03 www. pse mi.com
Page 7 of 11
Figure 16. Return Loss: RFC-RF1 @ 25 °C Figure 17. Return Loss: RFC-RF1 @ 3 V
Typical Performance Data
Figure 14. Isolation: RF1-RF2 @ 25 °C Figure 15. Isolation: RF1-RF2 @ 3 V
Product Specification
PE4272
Page 8 of 11
©2005 Peregrine Semiconductor Corp. All rights reserved. Document No. 70-0173-03 UltraCMOS™ RFIC Solutions
Typical Performance Data
Figure 18. Return Loss: RFC-RF2 @ 25 °C Figure 19. Return Loss RFC-RF2 @ 3 V
Figure 20. Re tur n Loss: RFC-RF1/ RF2 @ 25 °C Figure 21. Re tur n Loss: RFC-RF1/ RF2 @ 3 V
Product Specification
PE4272
©2005 Peregrine Semiconductor Corp. All rights reserved. Document No. 70-0173-03 www. pse mi.com
Page 9 of 11
8-lead MSOP
Figure 22. Package Drawing
FRONT VIEW
2.95±0.10
0.08 ABC
0.33 +0.07
-0.08
0.10 A0.10±0.05
3.00±0.10
0.86±0.08
1.10 MAX
- C -
- A -
1
0.65BSC
0.51±0.13
2.45±0.10
0.51±0.13
2X
8
3.00±0.10
.25 A B C
234
- B -
.525BSC
TOP VIEW
567
4.90±0.15
3.00±0.10
SIDE VIEW
2.95±0.10
R 0.90 MIN
0.95 BSC
0.55 ±0.15
R 0.90 MIN
0
o
6
o
12
o
REF
12
o
REF
0.25
GAGE
PLANE
Product Specification
PE4272
Page 10 of 11
©2005 Peregrine Semiconductor Corp. All rights reserved. Document No. 70-0173-03 UltraCMOS™ RFIC Solutions
8-lead MSOP
Table 7. Ordering Information
Figure 23. Tape and Reel Specifications
Or der Code Part Marking Description Package Shipping Method
4272-01 4272 P E4 27 2- 0 8 MSO P - 50A 8-l ea d MS OP 50 unit s / Tube
4272-02 4272 PE4 272-08 MSO P - 20 00C 8-l ea d MS OP 2000 units / T&R
4272-00 PE4272-EK PE4272-08MSOP-EK Evaluation Kit 1 / Box
4272-51 4272 PE4272G-08MSOP-50A Green 8-lead MSOP 50 units / Tube
4272-52 4272 PE4272G-08MSOP-2000C Green 8-lead MSOP 2000 units / T&R
Pin1
Product Specification
PE4272
©2005 Peregrine Semiconductor Corp. All rights reserved. Document No. 70-0173-03 www. pse mi.com
Page 11 of 11
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For a list of representat ives in your area, please r efer to our Web site at: www.psemi.com
Data Sheet Identification
Advance Information
The product is in a formative or design stage. The data
sheet contains design target specificat ions for product
development. Spec ifications and features may change in
any manner without notice.
Preliminary Specification
The data sheet contains preliminary data. Additional data
may be added at a later date. Peregrine reserves the right
to change specifications at any time without notice in or der
to supply t he best possible product.
Product Specification
The data sheet contains final data . In the event Peregrine
dec ide s to cha nge the spe c ific a tions, Pereg rine will not ify
cust omers of the intended changes by issuing a DCN
(Document Change Notice).
The information in this dat a sheet is believed to be reliable.
Howeve r, Peregrine assum es no liability f or th e use of this
information. Use shall be entir ely at the user’s own risk.
No patent rights or licenses to any circuits described in this
data sheet are implied or granted to any third party.
Peregrine’s pr oducts are not designed or intended for use in
devices or systems intended for surgical implant, or in other
applications intended to support or sustain life, or in any
application in which the failure of the Peregrine product could
create a situation in which personal injury or death m ight occur.
Peregr ine assumes no liability for damages, including
consequential or incident al dam ages, arising out of the use of
its products in such applications.
The Peregr ine nam e, logo, and UTSi are register ed tr ademarks
and UltraCMOS and HaRP are trademarks of Peregrine
Semiconductor Corp.
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Tel: +86-21-5836-8276
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