Product Specification
PE42442
UltraCMOS® SP4T RF Switch
30 MHz–6 GHz
Product Description
The PE42442 is a HaRP™ technology-enhanced
absorptive SP4T RF switch designed for use in 3G/4G
wireless infrastructure and other high performance RF
applications.
This switch is a pin-compatible four throw version of the
PE42451 with a wider frequency and power supply range.
It is comprised of four symmetric RF ports with very high
isolation up to 6 GHz. An integrated CMOS decoder
facilitates a two- or three-pin 1.8V CMOS control
interface. In addition, no external blocking capacitors are
required if 0 VDC is present on the RF ports.
The PE42442 is manufactured on pSemi’s UltraCMOS®
process, a patented variation of silicon-on-insulator (SOI)
technology on a sapphire substrate.
pSemi’s HaRP technology enhancements deliver high
linearity and excellent harmonics performance. It is an
innovative feature of the UltraCMOS process, offering the
performance of GaAs with the economy and integration of
conventional CMOS.
Features
Four symmetric, absorptive RF ports
High isolation
61 dB @ 900 MHz
55 dB @ 2100 MHz
52 dB @ 2700 MHz
43 dB @ 4000 MHz
32 dB @ 6000 MHz
High linearity
IIP2 of 97 dBm
IIP3 of 58 dBm
1.8V control logic compatible
125 °C operating temperature
Fast switching time of 255 ns
Two- or three-pin CMOS logic control
External negative supply option
ESD performance
4 kV HBM on RF pins to GND
2 kV HBM on all pins
Figure 1. Functional Diagram
Figure 2. Package Type
24-lead 4 4 mm QFN
DOC-59069
Document No. DOC-33414-8 │ www.psemi.com
©2013-2021 pSemi Corporation All rights reserved.
Page 1 of 11
PE42442
Product Specification
Table 1. Electrical Specifications @ +25 °C (ZS = ZL = 50Ω) unless otherwise noted
Normal mode1: VDD = 3.3V, VSS_EXT = 0V or Bypass mode2: VDD = 3.3V, VSS_EXT = –3.3V
Parameter
Path
Condition
Min
Operating frequency
Insertion loss
Isolation
Isolation
Typ
30
0.85
0.90
1.10
1.15
1.25
1.90
Max
Unit
6000
MHz
1.00
1.05
1.35
1.40
1.50
2.35
dB
dB
dB
dB
dB
RFC–RFX
450 MHz
900 MHz
2100 MHz
2700 MHz
4000 MHz
6000 MHz
RFC–RFX
450 MHz
900 MHz
2100 MHz
2700 MHz
4000 MHz
6000 MHz
62
55
52
50
42
27
67
61
55
52
43
32
dB
dB
dB
dB
dB
RFX–RFX
450 MHz
900 MHz
2100 MHz
2700 MHz
4000 MHz
6000 MHz
61
56
51
50
41
29
65
61
54
52
44
32
dB
dB
dB
dB
dB
Return loss (active port)
RFX
30–4000 MHz
4000–6000 MHz
17
12
dB
dB
Return loss (terminated port)
RFX
30–4000 MHz
4000–6000 MHz
22
19
dB
dB
Input 0.1 dB compression point3
RFC–RFX
900 MHz
35
dBm
Input IP2
RFC–RFX
1900 MHz
97
dBm
Input IP3
RFC–RFX
1900 MHz
58
dBm
50% control to 90% or 10% RF
255
Switching time
330
ns
Notes: 1. Normal mode: single external positive supply used.
2. Bypass mode: both external positive supply and external negative supply used.
3. The input 0.1 dB compression point is a linearity figure of merit. Refer to Table 4 for the operating RF input power (50Ω).
©2013-2021 pSemi Corporation All rights reserved.
Page 2 of 11
Document No. DOC-33414-8 │ UltraCMOS® RFIC Solutions
PE42442
Product Specification
Table 2. Electrical Specifications @ +125 °C (ZS = ZL = 50Ω) unless otherwise noted
Normal mode1: VDD = 3.3V, VSS_EXT = 0V or Bypass mode2: VDD = 3.3V, VSS_EXT = –3.3V
Parameter
Path
Condition
Min
Operating frequency
Insertion loss
Isolation
Isolation
Typ
30
1.11
1.18
1.43
1.50
1.59
2.28
Max
Unit
6000
MHz
1.38
1.45
1.79
1.95
2.04
2.91
dB
dB
dB
dB
dB
dB
RFC–RFX
450 MHz
900 MHz
2100 MHz
2700 MHz
4000 MHz
6000 MHz
RFC–RFX
450 MHz
900 MHz
2100 MHz
2700 MHz
4000 MHz
6000 MHz
56
54
49
46
33
23
66
60
55
52
43
32
dB
dB
dB
dB
dB
dB
RFX–RFX
450 MHz
900 MHz
2100 MHz
2700 MHz
4000 MHz
6000 MHz
59
54
50
49
39
26
65
61
53
52
43
32
dB
dB
dB
dB
dB
dB
Return loss (active port)
RFX
30–4000 MHz
4000–6000 MHz
16
13
dB
dB
Return loss (terminated port)
RFX
30–4000 MHz
4000–6000 MHz
17
15
dB
dB
Input 0.1 dB compression point3
RFC–RFX
900 MHz
35
dBm
Input IP2
RFC–RFX
1900 MHz
91
dBm
Input IP3
RFC–RFX
1900 MHz
56
dBm
50% control to 90% or 10% RF
355
Switching time
439
ns
Notes: 1. Normal mode: single external positive supply used.
2. Bypass mode: both external positive supply and external negative supply used.
3. The input 0.1 dB compression point is a linearity figure of merit. Refer to Table 4 for the operating RF input power (50Ω).
©2013-2021 pSemi Corporation All rights reserved.
Page 3 of 11
Document No. DOC-33414-8 │ UltraCMOS® RFIC Solutions
PE42442
Product Specification
Symbol
Min
V3
Table 4. Operating Ranges
Normal mode
19
VssEXT
20
GND
21
RFC
22
GND
23
24
GND
Figure 3. Pin Configuration (Top View)
Parameter
Supply voltage
VDD
2.3
Supply current
IDD
Typ
Max
Unit
5.5
V
1
110
µA
Bypass mode
2
Supply voltage
VDD
Supply current
IDD
Negative supply
voltage
2.7
5.5
50
V
µA
VSS_EXT
–3.6
–3.2
V
Digital input high
(V1, V2, V3)
VIH
1.17
3.6
V
Digital input low
(V1, V2, V3)
VIL
–0.3
0.6
V
12
GND
11
RF2
10
GND
9
GND
8
RF3
GND
7
Normal or Bypass mode
Table 3. Pin Descriptions
ICTRL
1
µA
RF input power, CW
P
+105 °C
33
dBm
MAX,CW
Pin #
Name
1-3, 4, 6, 7, 9,
10, 12, 13,
15, 21, 23, 24
GND
Ground
RF input power, CW
P
+125 °C
28
dBm
5
RF41
RF port 4
RF input power into
terminated ports, CW
P
+105 °C
24
dBm
8
RF31
RF port 3
11
RF21
RF port 2
RF input power into
terminated ports, CW
P
+125 °C
20
dBm
14
RF11
RF port 1
+125
°C
16
VDD
Supply voltage
17
V1
Digital control logic input 1
18
V2
Digital control logic input 2
19
V3
Digital control logic input 3
20
VSS_EXT3
22
RFC
RF common
Pad
GND
Exposed pad: Ground for proper operation
2
1
Description
Digital input current3
External Vss negative voltage control/
ground
Notes: 1. RF pins 5, 8, 11, 14 and 22 must be at 0 VDC. The RF pins do not
require DC blocking capacitors for proper operation if the 0 VDC
requirement is met.
2. Pin 19 must be grounded for 2-pin control, refer to Table 5A.
3. Use VSS_EXT (pin 20, refer to Table 3) to bypass and disable internal
Exceeding absolute maximum ratings may cause
permanent damage. Operation should be
restricted to the limits in the Operating Ranges
table. Operation between operating range
maximum and absolute maximum for extended
periods may reduce reliability.
MAX,CW
MAX,TERM
Operating
temperature range
Notes:
MAX,TERM
TOP
–40
1. Normal mode: connect pin 20 to GND to enable internal negative
voltage generator.
2. Bypass mode: apply a negative voltage to VSS_EXT (pin 20) to
bypass and disable internal negative voltage generator.
3. The pull-down resistor in the EVK schematic may increase control
current.
Table 5. Absolute Maximum Ratings
Parameter/Condition
Supply voltage
Voltage on any DC input
Symbol
Min
Max
Unit
VDD
–0.3
5.5
V
VI
–0.3
3.6
V
Maximum input power
PMAX_ABS
+105 °C
34
dBm
Maximum input power
PMAX_ABS
+125 °C
28
dBm
+150
°C
Storage temperature range
TST
–65
ESD voltage HBM
All pins
RF pins to ground
VESD_HBM
2.0
4.0
kV
kV
ESD voltage MM2, all pins
VESD_MM
150
V
ESD voltage CDM3, all pins
VESD_CDM
250
V
1
Notes: 1. Human Body Model (MIL_STD 883 Method 3015)
2. Machine Model (JEDEC JESD22-A115)
Document No. DOC-33414-8 │ www.psemi.com
©2013-2021 pSemi Corporation All rights reserved.
Page 4 of 11
PE42442
Product Specification
Electrostatic Discharge (ESD) Precautions
Table 6. Truth Table (3-pin control)*
When handling this UltraCMOS 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
Mode
V3
V2
V1
Unsupported
0
0
0
RF1 on
0
0
1
RF2 on
0
1
0
RF3 on
0
1
1
RF4 on
1
0
0
Latch-Up Avoidance
All off
1
0
1
Unlike conventional CMOS devices, UltraCMOS
devices are immune to latch-up.
All off
1
1
0
Unsupported
1
1
1
Switching Frequency
The PE42442 has a maximum 25 kHz switching
rate in normal mode (pin 20 = GND). A faster
switching rate is available in bypass mode (pin 20
= VSS_EXT ). The rate at which the PE42442 can be
switched is then limited to the switching time as
specified in Table 1.
Switching frequency describes the time duration
between switching events. Switching time is the
time duration between the point the control signal
reaches 50% of the final value and the point the
output signal reaches within 10% or 90% of its
Moisture Sensitivity Level
The Moisture Sensitivity Level rating for the
PE42442 in the 24-lead 4 4 mm QFN package
is MSL1.
Note: * 3-pin control intended for legacy product support to PE42450 and
PE42451 or if All Off mode is required. Logic States 000 and 111 are
unsupported and should not be used under any operating conditions.
Table 6A. Truth Table (2-pin control1)2
Mode
V2
V1
RF4 on
0
0
RF1 on
0
1
RF2 on
1
0
RF3 on
1
1
Notes:
1. Pin 19 = V3 must be grounded.
2. 2-pin control is recommended for new product designs if All Off
mode is not required.
Optional External VSS Control (VSS_EXT)
For applications the require a faster switching rate
or spur-free performance, this part can be
operated in bypass mode. Bypass mode requires
an external negative voltage in addition to an
external VDD supply voltage.
As specified in Table 3, the external negative
voltage (VSS_EXT) when applied to pin 20 will
disable and bypass the internal negative voltage
Spurious Performance
The typical low-frequency spurious performance
of the PE42442 in normal mode is –120 dBm
(pin 20 = GND). If spur-free performance is
desired, the internal negative voltage generator
can be disabled by applying a negative voltage to
VSS_EXT (pin 20).
©2013-2021 pSemi Corporation All rights reserved.
Page 5 of 11
Document No. DOC-33414-8 │ UltraCMOS® RFIC Solutions
PE42442
Product Specification
Typical Performance Data @ 25 °C and VDD = 3.3V unless otherwise noted
Figure 4. Insertion Loss (All Paths)
0
Insertion Loss (dB)
−0.5
−1
−1.5
−2
RF1
RF2
RF3
RF4
−2.5
−3
0
1
2
3
Frequency (GHz)
4
5
6
Figure 6. Insertion Loss vs VDD (RFC–RFX)
0
0
−0.5
−0.5
−1
−1
Insertion Loss (dB)
Insertion Loss (dB)
Figure 5. Insertion Loss vs Temp (RFC–RFX)
−1.5
−2
− 40 C
+25 C
+85 C
+105 C
−2.5
−3
0
1
2
3
Frequency (GHz)
4
Document No. DOC-33414-8 │ www.psemi.com
5
−1.5
−2
−2.5
6
−3
0
2.3 V
3.3 V
5.5 V
1
2
3
Frequency (GHz)
4
5
6
©2013-2021 pSemi Corporation All rights reserved.
Page 6 of 11
PE42442
Product Specification
Typical Performance Data @ 25 °C and VDD = 3.3V unless otherwise noted
Figure 8. Isolation vs VDD (RFC–RFX)
0
0
−10
−10
−20
−20
−30
−30
Isolation (dB)
Isolation (dB)
Figure 7. Isolation vs Temp (RFC–RFX)
−40
−50
−60
−70
− 40 C
+25 C
+85 C
+105 C
−80
1
2
3
Frequency (GHz)
4
5
−90
0
6
−10
−10
−20
−20
−30
−30
Isolation (dB)
0
−40
−50
2
3
Frequency (GHz)
4
5
6
−40
−50
−60
−60
−70
−70
− 40 C
+25 C
+85 C
+105 C
−80
1
2
3
Frequency (GHz)
4
©2013-2021 pSemi Corporation All rights reserved.
Page 7 of 11
1
Figure 10. Isolation vs VDD (RFX–RFX)
0
−90
0
2.3 V
3.3 V
5.5 V
−80
Figure 9. Isolation vs Temp (RFX–RFX)
Isolation (dB)
−50
−60
−70
−90
0
−40
5
2.3 V
3.3 V
5.5 V
−80
6
−90
0
1
2
3
Frequency (GHz)
4
5
6
Document No. DOC-33414-8 │ UltraCMOS® RFIC Solutions
PE42442
Product Specification
Typical Performance Data @ 25 °C and VDD = 3.3V unless otherwise noted
Figure 12. Active Port Return Loss vs VDD
0
0
−5
−5
−10
−10
Return Loss (dB)
Return Loss (dB)
Figure 11. Active Port Return Loss vs Temp
−15
−20
−20
− 40 C
+25 C
+85 C
+105 C
−25
−30
0
1
2
3
Frequency (GHz)
4
5
−25
−30
0
6
Figure 13. RFC Port Return Loss vs Temp
0
0
−5
−5
−10
−10
−15
1
2
3
Frequency (GHz)
4
5
6
−15
−20
−20
− 40 C
+25 C
+85 C
+105 C
−25
−30
0
2.3 V
3.3 V
5.5 V
Figure 14. RFC Port Return Loss vs VDD
Return Loss (dB)
Return Loss (dB)
−15
1
2
3
Frequency (GHz)
4
5
−25
−30
0
6
Figure 15. Return Loss (All Ports Terminated)
2.3 V
3.3 V
5.5 V
1
2
3
Frequency (GHz)
4
5
6
Figure 16. IIP3 vs Frequency
70
0
−5
60
−10
50
−20
IIP3(dBm)
Return Loss (dB)
−15
−25
−30
−35
30
20
−40
RF1
RF2
RF3
RF4
−45
−50
0
40
1
2
3
Frequency (GHz)
4
Document No. DOC-33414-8 │ www.psemi.com
5
RF1
RF2
10
RF3
RF4
6
0
0
1
2
3
Frequency (GHz)
4
5
6
©2013-2021 pSemi Corporation All rights reserved.
Page 8 of 11
PE42442
Product Specification
Evaluation Kit
Figure 17. Evaluation Board Layout
The SP4T switch Evaluation Board was designed
to ease customer evaluation of pSemi’s PE42442.
The RF common port is connected through a 50Ω
transmission line via the top SMA connector. RF1,
RF2, RF3, and RF4 are connected through 50Ω
transmission lines via side SMA connectors. A
through 50Ω transmission is available via SMA
connectors RFCAL1 and RFCAL2. This
transmission line can be used to estimate the loss
of the PCB over the environmental conditions
being evaluated.
The EVK board is constructed with four metal
layers on dielectric materials of Rogers 4003C and
4450 with a total thickness of 32 mils. Layer 1 and
layer 3 provide ground for the 50Ω transmission
lines. The 50Ω transmission lines are designed in
layer 2 for high isolation purpose and use
a stripline waveguide design with a trace width of
9.4 mils and trace metal thickness of 1.8 mils. The
board stack up for 50Ω transmission lines has
8 mil thickness of Rogers 4003C between layer 1
and layer 2, and 10 mil thickness of Rogers 4450
between layer 2 and layer 3.
Please consult manufacturer's guidelines for
proper board material properties in your
application. The PCB should be designed in such
a way that RF transmission lines and sensitive DC
I/O traces such as VSS_EXT are heavily isolated from
one another, otherwise the true performance of the
PE42442 will not be yielded.
©2013-2021 pSemi Corporation All rights reserved.
Page 9 of 11
DOC-59282
Document No. DOC-33414-8 │ UltraCMOS® RFIC Solutions
PE42442
Product Specification
Figure 18. Evaluation Board Schematic
DOC-33427
Document No. DOC-33414-8 │ www.psemi.com
©2013-2021 pSemi Corporation All rights reserved.
Page 10 of 11
PE42442
Product Specification
Figure 19. Package Drawing
24-lead 4 4 mm QFN
0.10 C
A
4.00
2.70±0.05
(2X)
0.40±0.05
(x24)
B
0.50
(x20)
12
13
18
0.60
(x24)
0.30
(x24)
0.50
(x20)
19
4.00
2.70±0.05 2.75
0.25±0.05
(x24)
0.10 C
24
7
6
Chamfer
0.30 x 45°
1
(2X)
2.50
Ref.
2.75
4.40
Pin #1 Corner
RECOMMENDED LAND PATTERN
BOTTOM VIEW
TOP VIEW
4.40
DOC-58197
0.10 C
0.75±0.05
0.05 C
0.10
0.05
C A B
C
ALL FEATURES
SEATING PLANE
0.203
Ref.
SIDE VIEW
0.05
C
Figure 20. Marking Specifications
42442
YYWW
ZZZZZ
= Pin 1 designator
YYWW = Date code
ZZZZZ = Las five digits of the lot number
DOC-51207
©2013-2021 pSemi Corporation All rights reserved.
Page 11 of 11
Document No. DOC-33414-8 │ UltraCMOS® RFIC Solutions
PE42442
Product Specification
Figure 21. Tape and Reel Drawing
A0 = 4.35
B0 = 4.35
K0 = 1.1
Tape Feed Direction
Pin 1
Top of
Device
Device Orientation in Tape
Table 7. Ordering Information
Ordering Code
Description
Package
Shipping Method
PE42442A-Z
PE42442 SP4T RF switch
Green 24-lead 4 4 mm QFN
3000 units/T&R
EK42442-01
PE42442 Evaluation kit
Evaluation kit
1/Box
Sales Contact and Information
For sales and contact information please visit www.psemi.com.
Document No. DOC-33414-8 │ www.psemi.com
©2013-2021 pSemi Corporation All rights reserved.
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