Page 1 of 8
Document No. 70-0094-01
www.psemi.com
2005 Peregrine Semiconductor Corp. All rights reserved.
6-lead SOT23
Figure 2. Package Type
Parameter Conditions
Minimum
Typical
Maximum
Units
Operation Frequency
1
DC
3000
MHz
Insertion Loss
1000 MHz
2000 MHz
0.7
0.9
0.85
1.05
dB
dB
Isolation
1000 MHz
2000 MHz
28
19
30
21
dB
dB
Return Loss
1000 MHz
2000 MHz
18
16
20
18
dB
dB
`ON' Switching Time
50% CTRL to 0.1 dB of final value, 1 GHz
300
ns
`OFF' Switching Time
50% CTRL to 25 dB isolation, 1 GHz
200
ns
Video Feedthrough
2
15
mV
pp
Input 1 dB Compression
2000 MHz
26
27
dBm
Input IP3
2000 MHz, 14 dBm input power
43
45
dBm
RFCommon
RF1
RF2
CMOS
Control
Driver
CTRL CTRL or V
DD
The PE4241 UltraCMOSTM RF Switch is designed to cover a
broad range of applications from DC through 3.0 GHz. This
reflective switch integrates on-board CMOS control logic with a
low voltage CMOS-compatible control interface, and can be
controlled using either single-pin or complementary control
inputs. Using a nominal +3-volt power supply voltage, a typical
input 1 dB compression point of +27 dBm can be achieved.
The PE4241 UltraCMOSTM RF Switch 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
SPDT UltraCMOSTM RF Switch
Product Description
Figure 1. Functional Diagram
PE4241
Features
Single-pin or complementary CMOS
logic control inputs
+3.0-volt power supply needed for
single-pin control mode
Low insertion loss: 0.7 dB at 1.0 GHz,
0.9 dB at 2.0 GHz
Isolation of 30 dB at 1.0 GHz, 21 dB at
2.0 GHz
Typical input 1 dB compression point of
+27 dBm
Ultra-small SOT23 package
Notes: 1. Device linearity will begin to degrade below 10 MHz.
2. The DC transient at the output of any port of the switch when the control voltage is switched from Low to High or High to Low in a 50
test
set-up, measured with 1ns risetime pulses and 500 MHz bandwidth.
Table 1. Electrical Specifications @ +25 C, V
DD
= 3 V (Z
S
= Z
L
= 50
)
Product Specification
PE4241
Page 2 of 8
2005 Peregrine Semiconductor Corp. All rights reserved.
Document No. 70-0094-01
UltraCMOSTM RFIC Solutions
Pin
No.
Pin
Name
Description
1
RF1
RF1 port (Note 1)
2
GND
Ground connection. Traces should be
physically short and connected to
3
RF2
RF2 port (Note 1)
4
CTRL
Switch control input, CMOS logic level.
5
RFC
Common RF port for switch (Note 1)
6
CTRL
or
V
DD
This pin supports two interface options:
Single-pin control mode. A nominal 3-
volt supply connection is required.
Complementary-pin control mode. A
complementary CMOS control signal
to CTRL is supplied to this pin. By-
passing on this pin is not required in
this mode.
Table 2. Pin Descriptions
Note 1: All RF pins must be DC blocked with an external series
capacitor or held at 0 V
DC
.
Figure 3. Pin Configuration (Top View)
Table 3. Absolute Maximum Ratings
Electrostatic Discharge (ESD) Precautions
When handling this UltraCMOSTM device, 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 specified rating.
Latch-Up Avoidance
Unlike conventional CMOS devices, UltraCMOSTM
devices are immune to latch-up.
Table 4. DC Electrical Specifications
1
2
3
4
5
6
CTRL or V
DD
RFC
CTRL
RF1
GND
RF2
.
4241
pin 1
Symbol Parameter/Conditions Min Max Units
V
DD
Power
supply
voltage
-0.3
4.0 V
V
I
Voltage on any input
-0.3
V
DD
+
0.3
V
T
ST
Storage temperature
range
-65 150 C
T
OP
Operating temperature
range
-40 85 C
P
IN
Input power (50
)
30
dBm
V
ESD
ESD voltage (Human
Body Model)
1500
V
Parameter Min
Typ
Max
Units
V
DD
Power Supply Volt-
2.7
3.0
3.3
V
Power Supply Current
(V
DD
= 3V, V
CNTL
= 3V)
250
500
nA
Control Voltage High
0.7x V
DD
V
Control Voltage Low
0.3x V
DD
V
Product Specification
PE4241
Page 3 of 8
Document No. 70-0094-01
www.psemi.com
2005 Peregrine Semiconductor Corp. All rights reserved.
Control Logic Input
The PE4241 is a very versatile RF CMOS switch
that supports two operating control modes; single-
pin control mode and complementary-pin control
mode.
Single-pin control mode enables the switch to
operate with a single control pin (pin 4) supporting
a +3-volt CMOS logic input, and requires a
dedicated +3-volt power supply connection on pin
6 (V
DD
). This mode of operation reduces the
number of control lines required and simplifies the
switch control interface typically derived from a
CMOS
Processor I/O port.
Complementary-pin control mode allows the
switch to operate using complementary control
pins CTRL and
CTRL
(pins 4 & 6), that can be
directly driven by +3-volt CMOS logic or a suitable
Processor I/O port. This enables the PE4241 to
be used as a
potential alternate source for SPDT
RF switch products used in positive control
voltage mode and operating within the PE4241
operating limits.
Control Voltages
Signal Path
Pin 6 (CTRL or V
DD
) = V
DD
Pin 4 (CTRL) = High
RFC to RF1
Pin 6 (CTRL or V
DD
) = V
DD
Pin 4 (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 6 (CTRL or V
DD
) = Low
Pin 4 (CTRL) = High
RFC to RF1
Pin 6 (CTRL or V
DD
) = High
Pin 4 (CTRL) = Low
RFC to RF2
Product Specification
PE4241
Page 4 of 8
2005 Peregrine Semiconductor Corp. All rights reserved.
Document No. 70-0094-01
UltraCMOSTM RFIC Solutions
Evaluation Kit
The SPDT Switch Evaluation Kit board was
designed to ease customer evaluation of the
PE4241 SPDT switch. The RF common port is
connected through a 50
transmission line to the
top left SMA connector, J1. Port 1 and Port 2 are
connected through 50
transmission lines to the
top two SMA connectors on the right side of the
board, J3 and J2, respectively. A through
transmission line connects SMA 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 0.0476", trace
gaps of 0.030", dielectric thickness of 0.028",
metal thickness of 0.0021" and
r
of 4.4.
J6 provides a means for controlling DC and digital
inputs to the device. Starting from the lower left
pin, the second pin to the right (J6-3) is connected
to the device V1 or CTRL input. The fourth pin to
the right (J6-7) is connected to the device V2 or
CTRL/V
DD
input.
Figure 4. Evaluation Board Layout
Figure 5. Evaluation Board Schematic
CTRL
or V
DD
CTRL
RF2
RFC
GND
RF1
J6-3
J2
J1
J3
J4
J5
J6-7
Product Specification
PE4241
Page 5 of 8
Document No. 70-0094-01
www.psemi.com
2005 Peregrine Semiconductor Corp. All rights reserved.
-100
-80
-60
-40
-20
0
0
500
1000
1500
2000
2500
3000
Is
o
l
ation
(
d
B
)
Frequency (MHz)
-1.5
-1.2
-0.9
-0.6
-0.3
0
0
500
1000
1500
2000
2500
3000
I
n
ser
t
i
o
n
L
o
ss
(
d
B
)
Frequency (MHz)
I
n
ser
t
i
o
n
L
o
ss
(
d
B
)
-40C
25C
85C
20
30
40
50
60
20
30
40
50
60
0
500
1000
1500
2000
2500
3000
I
I
P3
(
d
Bm
)
1d
B
C
o
m
p
r
e
s
s
i
o
n
P
o
i
n
t
(
d
B
m
)
Frequency (MHz)
-1.5
-1.2
-0.9
-0.6
-0.3
0
0
500
1000
1500
2000
2500
3000
I
n
se
r
t
i
o
n
L
o
ss
(
d
B
)
Frequency (MHz)
I
n
se
r
t
i
o
n
L
o
ss
(
d
B
)
-40C
25C
85C
Typical Performance Data @ -40 C to 85 C (Unless otherwise noted)
Figure 7. Input 1 dB Compression Point & IIP3
(Typical performance @ 25 C)
Figure 9. Isolation RFC to RF1
Figure 8. Insertion Loss RFC to RF2
Figure 6. Insertion Loss RFC to RF1
Product Specification
PE4241
Page 6 of 8
2005 Peregrine Semiconductor Corp. All rights reserved.
Document No. 70-0094-01
UltraCMOSTM RFIC Solutions
-40
-30
-20
-10
0
0
500
1000
1500
2000
2500
3000
R
e
tur
n
Lo
s
s
(
d
B
)
Frequency (MHz)
RF2
RF1
-40
-30
-20
-10
0
0
500
1000
1500
2000
2500
3000
Re
t
u
rn
L
o
s
s
(d
B)
Frequency (MHz)
RF2
RF1
-100
-80
-60
-40
-20
0
0
500
1000
1500
2000
2500
3000
Is
o
l
a
t
i
o
n
(
d
B
)
Frequency (MHz)
-100
-80
-60
-40
-20
0
0
500
1000
1500
2000
2500
3000
Is
o
l
a
t
i
o
n
(
d
B)
Frequency (MHz)
Figure 11. Isolation RF1 to RF2, RF2 to RF1
Figure 13. Return Loss RF1, RF2
Figure 12. Return Loss RFC to RF1, RF2
Figure 10. Isolation RFC to RF2
Typical Performance Data @ -40 C to 85 C (Unless otherwise noted)
Product Specification
PE4241
Page 7 of 8
Document No. 70-0094-01
www.psemi.com
2005 Peregrine Semiconductor Corp. All rights reserved.
6-lead SOT23
Table 7. Ordering Information
Figure 14. Package Drawing
2.80
3.10
0.95
BSC
2.60
3.00
1.15
1.35
0.25
0.50
0.90
1.45
0.90
1.30
0.35
0.55
0.09
0.20
0.00
0.15
NOTE:
1. ALL DIMENSIONS ARE IN MILLIMETERS.
2. DIMENSIONS ARE EXCLUSIVE OF MOLD
FLASH & METAL BURR.
3. DIMENSIONS ARE INCLUSIVE OF SOLDER
PLATING.
4. ALL SPECIFICATIONS COMPLY TO EIAJ
SC74.
Order Code
Part Marking
Description
Package
Shipping
Method
4241-01
4241
PE4241-06SOT23-7680F
6-lead SOT23
7680 units / Canister
4241-02
4241
PE4241-06SOT23-3000C
6-lead SOT23
3000 units / T&R
4241-00
PE4241-EK
PE4241-06SOT23-EK
Evaluation Kit
1 / Box
Product Specification
PE4241
Page 8 of 8
2005 Peregrine Semiconductor Corp. All rights reserved.
Document No. 70-0094-01
UltraCMOSTM RFIC Solutions
Sales Offices
United States
Peregrine Semiconductor Corp.
9450 Carroll Park Drive
San Diego, CA 92121
Tel 1-858-731-9400
Fax 1-858-731-9499
Japan
Peregrine Semiconductor K.K.
5A-5, 5F Imperial Tower
1-1-1 Uchisaiwaicho, Chiyoda-ku
Tokyo 100-0011 Japan
Tel: 011-81-3-3502-5211
Fax: 011-81-3-3502-5213
Europe
Peregrine Semiconductor Europe
Btiment Maine
13-15 rue des Quatre Vents
F- 92380 Garches, France
Tel: 011- 33-1-47-41-91-73
Fax : 011-33-1-47-41-91-73
For a list of representatives in your area, please refer 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 specifications for product
development. Specifications 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 order
to supply the best possible product.
Product Specification
The data sheet contains final data. In the event Peregrine
decides to change the specifications, Peregrine will notify
customers of the intended changes by issuing a DCN
(Document Change Notice).
The information in this data sheet is believed to be reliable.
However, Peregrine assumes no liability for the use of this
information. Use shall be entirely 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 products 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 might occur.
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.
China
Peregrine Semiconductor
28G, Times Square,
No. 500 Zhangyang Road,
Shanghai, 200122, P.R. China
Tel: 011-86-21-5836-8276
Fax: 011-86-21-5836-7652
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