PRODUCT SPECIFICATION
PE4241
Product Description
The PE4241 MOSFET 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 MOSFET 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.
SPDT MOSFET RF Switch
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
Figure 1. Functional Schematic Diagram
RFCommon
Figure 2. Package Type
pin 1
RF1
1
6
CTRL or V
DD
RFC
CTRL
.
4241
RF1
CTRL
RF2
GND
RF2
2
5
3
4
Table 1. Electrical Specifications @ +25 °C, V
DD
= 3 V
(Z
S
= Z
L
= 50
Ω)
Parameter
Operation Frequency
Insertion Loss
Isolation
Return Loss
‘ON’ Switching Time
‘OFF’ Switching Time
Video Feedthrough
2
1
Conditions
Minimum
DC
Typical
Maximum
3000
Units
MHz
dB
dB
dB
dB
dB
dB
ns
ns
mV
pp
dBm
dBm
1000 MHz
2000 MHz
1000 MHz
2000 MHz
1000 MHz
2000 MHz
50% CTRL to 0.1 dB of final value, 1 GHz
50% CTRL to 25 dB isolation, 1 GHz
28
19
18
16
0.7
0.9
30
21
20
18
300
200
15
0.85
1.05
Input 1 dB Compression
Input IP3
2000 MHz
2000 MHz, 14 dBm input power
26
43
27
45
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 50Ω
test set-up, measured with 1ns risetime pulses and 500 MHz bandwidth.
PEREGRINE SEMICONDUCTOR CORP.
|
http://www.peregrine-semi.com
Copyright
Peregrine Semiconductor Corp. 2003
Page 1 of 8
PE4241
Product Specification
Table 2. Pin Descriptions
Pin No.
1
2
Table 3. Absolute Maximum Ratings
Symbol
Description
V
DD
V
I
T
ST
T
OP
P
IN
V
ESD
Pin
Name
RF1
GND
Parameter/Conditions
Power supply voltage
Voltage on any input
Storage temperature range
Operating temperature
range
Input power (50Ω)
ESD voltage (Human Body
Model)
Min
-0.3
-0.3
-65
-40
Max
4.0
V
DD
+
0.3
150
85
30
1500
Units
V
V
°C
°C
dBm
V
RF1 port (Note 1)
Ground connection. Traces should be
physically short and connected to ground
plane for best performance.
RF2 port (Note 1)
Switch control input, CMOS logic level.
Common RF port for switch (Note 1)
This pin supports two interface options:
1)
Single-pin control mode.
A nominal
3-volt supply connection is required.
2)
Complementary-pin control mode.
A
complementary CMOS control signal
to CTRL is supplied to this pin.
Bypassing on this pin is not required
in this mode.
3
4
5
6
RF2
CTRL
RFC
CTRL or
V
DD
Table 4. DC Electrical Specifications
Parameter
V
DD
Power Supply Voltage
Power Supply Current
(V
DD
= 3V, V
CNTL
= 3V)
Control Voltage High
Control Voltage Low
0.7x V
DD
0.3x V
DD
Min
2.7
Typ
3.0
250
Max
3.3
500
Units
V
nA
V
V
Note 1:
All RF pins must be DC blocked with an external
series capacitor or held at 0V
DC
.
Electrostatic Discharge (ESD) Precautions
When handling this UTSi 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
rating specified.
Latch-Up Avoidance
Unlike conventional CMOS devices, UTSi CMOS
devices are immune to latch-up.
Copyright
Peregrine Semiconductor Corp. 2003
File No. 70/0094~03A
|
UTSi
CMOS RFIC SOLUTIONS
Page 2 of 8
PE4241
Product Specification
Table 5. Single-pin Control Logic Truth Table
Control Voltages
Pin 6 = V
DD
CTRL = High
Pin 6 = V
DD
CTRL = Low
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
µProcessor
I/O port.
Complementary-pin control mode
allows the
switch to operate using complementary control
pins CNTL and CNTL (pins 4 & 6), that can be
directly driven by +3-volt CMOS logic or a suitable
µProcessor
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.
Signal Path
RFC to RF1
RFC to RF2
Table 6. Complementary-pin Control Logic
Truth Table
Control Voltages
CTRL = Low
CTRL = High
CTRL = High
CTRL = Low
Signal Path
RFC to RF1
RFC to RF2
PEREGRINE SEMICONDUCTOR CORP.
|
http://www.peregrine-semi.com
Copyright
Peregrine Semiconductor Corp. 2003
Page 3 of 8
PE4241
Product Specification
Typical Performance Data @ -40
°C
to 85
°C
(Unless Otherwise Noted)
Figure 4. Insertion Loss – RFC to RF1
0
Figure 5. Input 1 dB Compression Point & IIP3
(Typical performance @ 25
°C)
60
60
-0.3
-40°C
50
50
1dB Compression Point (dBm)
Insertion Loss (dB)
IIP3 (dBm)
-0.6
40
40
-0.9
85°C
25°C
-1.2
30
30
-1.5
0
500
1000
1500
Frequency (MHz)
2000
2500
3000
20
0
500
1000
1500
2000
2500
20
3000
Frequency (MHz)
Figure 6. Insertion Loss – RFC to RF2
Figure 7. Isolation – RFC to RF1
0
0
-0.3
-40°C
Insertion Loss (dB)
-20
-0.9
85°C
25°C
Isolation (dB)
-0.6
-40
-60
-1.2
-80
-1.5
0
500
1000
1500
Frequency (MHz)
2000
2500
3000
-100
0
500
1000
1500
Frequency (MHz)
2000
2500
3000
Copyright
Peregrine Semiconductor Corp. 2003
File No. 70/0094~03A
|
UTSi
CMOS RFIC SOLUTIONS
Page 4 of 8
PE4241
Product Specification
Typical Performance Data @ -40
°C
to 85
°C
(Unless Otherwise Noted)
Figure 8. Isolation – RFC to RF2
Figure 9. Isolation – RF1 to RF2, RF2 to RF1
0
0
-20
-20
Isolation (dB)
-60
Isolation (dB)
0
500
1000
1500
Frequency (MHz)
2000
2500
3000
-40
-40
-60
-80
-80
-100
-100
0
500
1000
1500
Frequency (MHz)
2000
2500
3000
Figure 10. Return Loss – RFC to RF1, RF2
Figure 11. Return Loss – RF1, RF2
0
0
-10
Return Loss (dB)
Return Loss (dB)
-10
RF1
RF1
-20
-20
RF2
-30
RF2
-30
-40
0
500
1000
1500
Frequency (MHz)
2000
2500
3000
-40
0
500
1000
1500
Frequency (MHz)
2000
2500
3000
PEREGRINE SEMICONDUCTOR CORP.
|
http://www.peregrine-semi.com
Copyright
Peregrine Semiconductor Corp. 2003
Page 5 of 8
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