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Document No. 70-0203-07 www.psemi.com ©2006-2012 Peregrine Semiconductor Corp. All rights reserved.
Product Description
The PE42742 is an SPDT UltraCMOS™ switch designed
for broadband applications such as CATV, DTV, Multi-
Tuner DVR (Digital Video Recorder), Set-top Box, PCTV
and Game Boxes. It meets FCC 15.115 spec of 80 dB
isolation @ 216 MHz and offers high isolation and low
insertion loss in both a powered and a unique unpowered
default state. The PE42742 covers a broad frequency
range from 5 MHz to beyond 2200 MHz with a single
positive supply and CMOS control. It provides a smaller,
cost effective, more reliable and manufacturable
alternative to mechanical relays in set-top box
applications.
The PE42742 is manufactured on Peregrine’s
UltraCMOS™ process, a patented variation of silicon-on-
insulator (SOI) technology on a sapphire substrate,
offering the performance of GaAs with the economy and
integration of conventional CMOS.
Product Specification
Figure 1. Functional Diagram
PE42742
Features
Meets FCC 15.115 spec of 80 dB
isolation @ 216 MHz
Unpowered operational state
3500 V HBM ESD tolerance, all pins
CTB performance of 90 dBc
High isolation: 63 dB @ 1000 MHz
Low insertion loss: typically 0.5 dB @
5 MHz, 0.8 dB @ 1000 MHz
CMOS single-pin control with logic
select
Single +3 volt supply operation
Low current consumption: 8 A
75 Ω Terminated, 5 - 2200 MHz SPDT
CATV UltraCMOS™ Switch
Featuring Unpowered Operation
Figure 2. Package Type
20-lead 4x4mm QFN
RF1 RF2
75
75CMOS
Control
Driver
ESD ESD
RFC
C1 C2
71-0040-01
Product Specification
PE42742
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©2006-2012 Peregrine Semiconductor Corp. All rights reserved. Document No. 70-0203-07 UltraCMOS™ RFIC Solutions
Table 1. Electrical Specifications @ +25°C, VDD = +3V (ZS = ZL = 75 )
Notes: 1. Device linearity will begin to degrade with input signals below 5 MHz
2. Measured in a 50 system
3. Measured with a 1 ns risetime, 0/3 V pulse and 500 MHz bandwidth
4. Minimum per FCC 15.115 spec
5. See Figure 9 for Power-Off insertion loss of RFC-RF1
Table 2. Electrical Characterization (Unpowered Operation)5
Parameter Condition Minimum Typical Maximum Units
Operating Frequency 5 2200 MHz
RF1-RFC Insertion Loss
220 MHz 0.45 0.55 dB
550 MHz 0.55 0.65 dB
810 MHz 0.7 0.8 dB
2200 MHz 1.7 1.8 dB
RF2-RFC Insertion Loss
220 MHz 0.7 0.8 dB
550 MHz 0.8 0.9 dB
810 MHz 0.9 1 dB
2200 MHz 1.8 1.9 dB
Isolation RF1 to RF2 (RFC-RF1 ON)
220 MHz 81 94 dB
550 MHz 77 82 dB
810 MHz 71.5 76 dB
2200 MHz 50 53.6 dB
Isolation RF1 to RF2 (RFC-RF2 ON)
220 MHz 81 92 dB
550 MHz 75 79 dB
810 MHz 70.5 75 dB
2200 MHz 50 53 dB
Isolation RF1 to RFC (RFC-RF2 ON)
220 MHz 71 74 dB
550 MHz 64 66 dB
810 MHz 62 64 dB
2200 MHz 52 57 dB
Isolation RF2 to RFC (RFC-RF1 ON)
220 MHz 70.5 73 dB
550 MHz 64 66 dB
810 MHz 61.5 63 dB
2200 MHz 51 55 dB
IP2 RF1/RF22 5 MHz – 1000 MHz 90/90 dBm
IIP3 RF1/RF22 5 MHz – 1000 MHz 53/53 dBm
Input 1 dB Compression RF1/RF22 1000 MHz 30/24.5 32/26.5 dBm
Switching time 50 % CTRL to 10 / 90 RF 3 µs
Video Feedthrough3 5 MHz – 1000 MHz 20 mVpp
CTB / CSO
(Powered/Unpowered) 77 & 110 channels;
Power Out = 44 dBmV -90 / -77 dBc
1000 MHz 0.75 0.85 dB
1000 MHz 1.0 1.1 dB
Parameter Condition Minimum Typical Maximum Units
Operating Frequency1 5 2200 MHz
Isolation RF1 to RF24
220 MHz
550 MHz
810 MHz
2200 MHz
81
77
70.5
49
90.5
81.5
77
52.5
-
-
-
-
dB
dB
dB
dB
Product Specification
PE42742
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Document No. 70-0203-07 www.psemi.com ©2006-2012 Peregrine Semiconductor Corp. All rights reserved.
No. Name Description
1, 2, 4-7, 9-12,
14, 15, 18, 19 GND RF Ground
3 RF11 RF I/O
8 RFC1 RF Common
13 RF21 RF I/O
16 C22 Control 2 (or logic select)
17 C12 Control 1 (or logic select)
20 VDD Supply
Pad GND RF Ground Pad
Table 3. Pin Descriptions
Table 5. Absolute Maximum Ratings
Electrostatic Discharge (ESD) Precautions
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 exceeding the
rating specified.
Latch-Up Avoidance
Unlike conventional CMOS devices, UltraCMOS™
devices are immune to latch-up.
Table 4. Operating Conditions @ 25°C
Notes: 1. RF pins 3, 8, and 13 must be at 0 VDC. The RF pins do not require DC
blocking capacitors for proper operation if the 0V DC requirement is met.
2. Pins 16 and 17 can be set for single pin or complementary
pin control.
Switching Frequency
The PE42742 has a maximum 25 kHz switching rate.
Figure 3. Pin Configuration (Top View)
Symbol Parameter/Condition Min Max Unit
VDD Power supply voltage -0.3 4.0 V
VI Voltage on any DC input -0.3 VDD +
0.3 V
PRF RF power on RFC, RF1, RF2
Terminated/Through 24/33 dBm
TST Storage temperature -65 +150 °C
TOP Operating temperature -40 +85 °C
V VESD
HBM1 ESD Voltage RF Pins 3500
HBM1 ESD Voltage Digital Pins 3500
MM2 ESD Voltage all pins 150
Parameter Min Typ Max Unit
VDD Power Supply 2.7 3.0 3.3 V
IDD Power Supply Current
(VDD = 3V, VCNTL = 3V) 8 A
Control Voltage High 0.7 x VDD VDD V
Control Voltage Low 0 0.3 x VDD V
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.
GND
15
14
13
12
11
3
4
5
2
1
17
16
18
19
20
9
10
8
7
6
C2
GND
GND
GND
GND
GND
RFC
VDD
C1
GND
GND
GND
GND
RF2
GND
GND
GND
RF1
GND
GND
75 75
Moisture Sensitivity Level
The Moisture Sensitivity Level rating for the PE42742 in
the 20-lead QFN package is MSL1.
Notes: 1. ML_STD 883 Method 3015.7
2. JEDEC JESD22-A114-B
Product Specification
PE42742
Page 4 of 10
©2006-2012 Peregrine Semiconductor Corp. All rights reserved. Document No. 70-0203-07 UltraCMOS™ RFIC Solutions
Figure 4. Typical Application (1 of 4)
Table 6. Truth Table
VDD C1 (pin 17) C2 (pin 16) RFC – RF1 RFC – RF2
OFF Low Low ON OFF
ON Low Low ON OFF
ON Low High OFF ON
ON High Low OFF ON
ON High High ON OFF
Note: A versatile logic table has been established to allow either C1 or C2 act
as a single pin control and in either polarity.
Typical Applications
The PE42742 provides the high isolation required
by FCC part 15.115 regulation between the
television antenna and the cable plant. The
advantage of the PE42742 is that device
isolation / thru performance is maintained when
power is removed. This unique feature makes the
PE42742 ideal for set-top box and VCR
applications. The PE42742 supports signal flow
from RFC to RF1 and RF2 termination in the
unpowered state; similar to the powered state with
C1=C2 (both high or low).
DTV-Tuner
PE42742
SPDT
DTV Tuner
Antenna Input
CATV Input
80dB 54 – 216M Hz
60dB 216 – 550MHz
55dB 550 – 806MHz
Power
Splitter
Power
Splitter
PE42742
SPDT
Dual Tuner DTV / DVR / Set-top Box
Television
RF
Splitter
Antenna/Cable
Input
PVR/VCR/Game Box
PE42742
SPDT
Tuner/
Modulator
OFF – Pass Through
Tuner
CATV Input
OFF – Terminated
TV Set / Cable Set-top Box
75Ω
PE42742 SPDT
Figure 5. Typical Application (2 of 4)
Figure 7. Typical Application (4 of 4)
Figure 6. Typical Application (3 of 4)
DTV-Tuner
PE42742
SPDT
Antenna Input
CATV Input
80dB 54 – 216M Hz
60dB 216 – 550M Hz
55dB 550 – 806M Hz
Product Specification
PE42742
Page 5 of 10
Document No. 70-0203-07 www.psemi.com ©2006-2012 Peregrine Semiconductor Corp. All rights reserved.
Typical Performance Data @ 25°C, 75 Ω
Figure 8. Insertion Loss – Power On Figure 9. Insertion Loss – Power Off
Figure 10. Isolation - Power On Figure 11. Isolation - Power Off
Product Specification
PE42742
Page 6 of 10
©2006-2012 Peregrine Semiconductor Corp. All rights reserved. Document No. 70-0203-07 UltraCMOS™ RFIC Solutions
Typical Performance Data @ 25°C, 75 Ω
Figure 12. Isolation: RF2 – Power On Figure 13. Return Loss: RF1
Figure 14. Return Loss: RF2 Figure 15. Return Loss: RFC
Product Specification
PE42742
Page 7 of 10
Document No. 70-0203-07 www.psemi.com ©2006-2012 Peregrine Semiconductor Corp. All rights reserved.
Typical Performance Data @ 25°C, 75 Ω
Figure 16. Input IP3: RFC-RF1/RF2 Figure 17. P_1dB Compression: RFC-RF1/RF2
0
10
20
30
40
50
60
70
0 500 1000 1500 2000 2500
Frquency (MHz)
Input IP3 (dBm)
RF1
RF2
0
5
10
15
20
25
30
35
40
0 500 1000 1500 2000 2500
Fr e que ncy (d Bm )
P_1dB (dBm)
RF1
RF2
Product Specification
PE42742
Page 8 of 10
©2006-2012 Peregrine Semiconductor Corp. All rights reserved. Document No. 70-0203-07 UltraCMOS™ RFIC Solutions
Evaluation Kit
The SPDT Switch Evaluation Kit facilitates
customer evaluation of the PE42742 SPDT
switch. The RF common port is connected through
a 75 transmission line to J2. Ports 1 and 2 are
connected through 75 transmission lines to J1
and J3. A through line connects F connectors J4
and J5. This transmission line can be used to
estimate the PCB loss over the environmental
conditions. J6 provides DC and digital inputs to
the device.
The board is composed of a two metal layer FR4
material with a total thickness of 0.032”. The
transmission lines are hybrid microstrip/coplanar
waveguide with ground plane (28 mil core, 12 mil
width, 12 mil gap).
The provided jumpers short the control pins to
ground for logic low. With the jumper removed the
control input rises to VDD for logic high through the
1 MΩ pull up resistor. These resistors will draw
several microamps from VDD. They are not
required for normal operation.
Figure 18. Evaluation Board Layouts
Figure 19. Evaluation Board Schematic
Peregrine Specification 102/0352
Peregrine Specification 101/0269
Product Specification
PE42742
Page 9 of 10
Document No. 70-0203-07 www.psemi.com ©2006-2012 Peregrine Semiconductor Corp. All rights reserved.
Figure 20. Package Drawing
4x4 mm 20-lead QFN, BOM 19/0106
Figure 21. Marking Specification
42742
YYWW
ZZZZZ
YYWW = Date Code (Year, Work Week)
ZZZZZ = Last five digits of PSC Lot Number
Note: PE42742 uses the SLP dimensions.
Product Specification
PE42742
Page 10 of 10
©2006-2012 Peregrine Semiconductor Corp. All rights reserved. Document No. 70-0203-07 UltraCMOS™ RFIC Solutions
Table 7. Ordering Information
Order Code Part Marking Description Package Shipping Method
PE42742MLIBB 42742 PE42742G-20 QFN 4x4mm-cut off tape and reel Green 20-lead 4x4mm QFN Cut tape or loose
PE42742MLIBB-Z 42742 PE42742G-20 QFN 4x4mm-3000C Green 20-lead 4x4mm QFN 3000 units / T&R
EK42742-03 PE42742-EK PE42742-20 QFN 4x4mm-EK Evaluation Kit 1 / Box
Figure 22. Tape and Reel Drawing
Device Orientation in Tape
Top of
Device
Pin 1
Tape Feed Direction
A0 = 4.35
B0 = 4.35
K0 = 1.1
Advance Information:
The product is in a formative or design stage. The datasheet contains design target
specifications for product development. Specifications and features may change in any manner without notice.
Preliminary Specification:
The datasheet 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 datasheet contains final data. In the event Peregrine decides to
change the specifications, Peregrine will notify customers of the intended changes by issuing a CNF (Customer
Notification Form).
The information in this datasheet 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 datasheet 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, HaRP, MultiSwitch and DuNE
are trademarks of Peregrine Semiconductor Corp.
Sales Contact and Information
For Sales and contact information please visit www.psemi.com.
