PE4246-52/TR - Peregrine Semiconductor Corp.

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RF1 RF2

CTRL

50Ω50ΩCMOS

Control

Driver

ESD ESD

The PE4246 RF Switch is designed to cover a broad range of

applications from 1 to 5000 MHz. It is non-reflective at both

RF1 and RF2 ports. This SPST switch integrates a single-pin

CMOS control interface, and provides low insertion loss while

operating with extremely low bias from a single +3-volt supply.

In a typical application, the high isolation PE4246 can replace

multiple RF switches of lesser isolation performance. It is

offered in a small 3x3 mm DFN package.

The PE4246 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

Absorptive SPST UltraCMOS™

RF Switch: 1 - 5000 MHz

Product Description

Figure 1. Functional Diagram

PE4246

Features

• Non-reflective 50-ohm RF switch

• 50-ohm (0.25 watt) terminations

• High isolation: 55 dB at 1000 MHz,

48 dB at 3000 MHz

• Low insertion loss: 0.8 dB at 1000 MHz,

0.9 dB at 3000 MHz

• High linearity: +33 dBm input 1dB

compression point

• CMOS/TTL single-pin control

• Single +3-volt supply operation

• Extremely low bias: 33 µA @ 3 V

• Available in a 6-lead DFN package

Notes: 1. Device linearity will begin to degrade below 1 MHz.

2. The DC transient at the output of the switch when the control voltage is switched from Low to High or High to Low in a 50 Ω test set-up,

measured with 1ns risetime pulses and 500 MHz bandwidth.

3. Note Absolute Maximum ratings in Table 3.

Table 1. Electrical Specifications @ +25 °C, VDD = 3 V (ZS = ZL = 50 Ω)

Figure 2. Package Type

6-lead DFN

Parameter Condition Minimum Typical Maximum Units

Operation Frequency1 1 5000 MHz

Operating Power CTRL=1/CTRL=0 30/24 dBm

Insertion Loss

1-2000 MHz

2000-3000 MHz

3000-4000 MHz

4000-5000 MHz

0.8

0.9

1.0

1.3

1.0

1.1

1.3

1.8

dB

Isolation

1-2000 MHz

2000-3000 MHz

3000-4000 MHz

4000-5000 MHz

49

45

43

40

55

48

46

44

dB

Return Loss 1-5000 MHz 11 20 dB

Input 1 dB Compression3 1-5000 MHz 30 33 dBm

Input IP3 1-5000 MHz 50 dBm

Video Feedthrough2 15 mVpp

Switching Time 2 µs

Peregrine Specification 71/0008

Product Specification

PE4246

Page 2 of 8

Table 2. Pin Descriptions

Table 3. 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 in Table 3.

Latch-Up Avoidance

Unlike conventional CMOS devices, UltraCMOS™ de-

vices are immune to latch-up.

Table 4. Operating Ranges

Notes: 1. A bypass capacitor should be placed as close as possible

to the pin.

2. Both RF pins must be DC blocked by an external capacitor

or held at 0 VDC.

3. The exposed pad must be soldered to the ground plane for

proper switch performance.

Figure 3. Pin Configuration

Table 5. Control Logic Truth Table

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.

No.

Name Description

1 VDD Nominal 3 V supply connection.1

2 GND Ground connection. 3

3 RF1 RF port. 2

4 CTRL CMOS or TTL logic level:

High = RF1 to RF2 signal path

Low = RF1 isolated from RF2

5 GND Ground connection. 3

6 RF2 RF port. 2

Symbol Parameter/Condition Min Max Unit

VDD Power supply voltage -0.3 4.0 V

VI Voltage on CTRL input -0.3 5.5 V

TST Storage temperature -65 150 °C

PIN Input power (50 Ω),

CTRL=1/CTRL=0 33/24 dBm

VESD ESD voltage

(Human Body Model) 200 V

Parameter Min Typ Max Unit

VDD Power Supply 2.7 3.0 3.3 V

IDD Power Supply Current

(VDD = 3 V, VCNTL = 3 V) 33 40 µA

Control Voltage High 0.7xVDD 5 V

Control Voltage Low 0 0.3xVDD V

TOP Operating temperature -40 85 °C

Control Voltage Signal Path

CTRL = CMOS or TTL High RF1 to RF2

CTRL = CMOS or TTL Low RF1 isolated from RF2

Exposed

Solder Pad

(bottom side)

V

DD

GND

RF1

RF2

GND

CTRL4

5

6

3

2

1

Device Description

The PE4246 high-isolation SPST RF Switch is

designed to support a variety of applications

where high isolation performance is demanded

and a non-reflective input and output is desired.

This switch is able to replace multiple lesser

performing switches in a very small 3x3 mm DFN

footprint.

Control Logic

The control logic input pin (CTRL) is typically driven by

a 3-volt CMOS logic level signal, and has a threshold of

50% of VDD. For flexibility to support systems that have

5-volt control logic drivers, the control logic input has

been designed to handle a 5-volt logic HIGH signal. (A

minimal current will be sourced out of the VDD pin when

the control logic input voltage level exceeds VDD.)

Moisture Sensitivity Level

The Moisture Sensitivity Level rating for the PE4246 in

the 6-lead 3x3 DFN package is MSL1.

Product Specification

PE4246

Page 3 of 8

-100

-80

-60

-40

-20

0

0 1000 2000 3000 4000 5000

Isolation (dB)

Frequency (MHz)

20

30

40

50

60

20

30

40

50

60

0 1000 2000 3000 4000 5000

IIP3 (dBm)

1dB Compression Point (dBm)

Frequency (MHz)

IIP3

Input 1dB Compression

-3

-2.5

-2

-1.5

-1

-0.5

0

0 1000 2000 3000 4000 5000

Insertion Loss (dB)

Frequency (MHz)

-40 C

25 C85 C

Typical Performance Data @ 25 °C (Unless Otherwise Noted)

Figure 4. Insertion Loss Figure 5. Input 1dB Compression Point and IIP3

Figure 6. Isolation

T = -40 °C to 85 °C

Product Specification

PE4246

Page 4 of 8

-35

-30

-25

-20

-15

-10

-5

0

0 1000 2000 3000 4000 5000

Ret urn Loss (dB)

Frequency (MHz)

-35

-30

-25

-20

-15

-10

-5

0

0 1000 2000 3000 4000 5000

Return Loss (dB)

Frequency (MHz)

-30

-25

-20

-15

-10

-5

0

0 1000 2000 3000 4000 5000

Return Loss (dB)

Frequency (MHz)

-30

-25

-20

-15

-10

-5

0

0 1000 2000 3000 4000 5000

Return Loss (dB)

Frequency (MHz)

Typical Performance Data @ +25 °C

Figure 7. RF1 Return Loss (CTRL = High) Figure 8. RF2 Return Loss (CTRL = High)

Figure 9. RF1 Return Loss (CTRL = Low) Figure 10. RF2 Return Loss (CTRL = Low)

Product Specification

PE4246

Page 5 of 8

Evaluation Kit

The SPST Switch Evaluation Kit board was

designed to ease customer evaluation of the

PE4246 SPST switch. The RF1 port is connected

through a 50 Ω transmission line to the top left

SMA connector, J1. The RF2 port is connected

through a 50 Ω transmission line to the top right

SMA connector, J2. A through transmission line

connects SMA connectors J3 and J4. 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 model with

trace width of 0.0476”, trace gaps of 0.030”,

dielectric thickness of 0.028”, metal thickness of

0.0021” and εR of 4.3. Note that the predominate

mode for these transmission lines is coplanar

waveguide with a ground plane.

J5 and J6 provide a means for controlling DC and

digital inputs to the device. J6-1 is connected to

the device VDD input. J5-1 is connected to the

device CTRL input. J5-2 and J6-2 are GND

connections. A decoupling capacitor (100 pF) is

provided on both CTRL and VDD traces. It is the

responsibility 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 11. Evaluation Board Layouts

Figure 12. Evaluation Board Schematic

Peregrine Specification 102/0134

Peregrine Specification 101/0102

Product Specification

PE4246

Page 6 of 8

6-lead DFN

Figure 13. Package Drawing

NOTE: The exposed solder pad (on the bottom of the package) is not electrically connected to any other pin

(isolated).

Figure 14. Marking Specifications

4246

YYWW

ZZZZZ

YYWW = Date Code (last two digits of year and work week)

ZZZZZ = Last five digits of Lot Number

06L SLP

(3x3mm)

Product Specification

PE4246

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Table 6. Dimensions

Dimension DFN 3x3 mm

Ao 3.23 ± 0.1

Bo 3.17 ± 0.1

Ko 1.37 ± 0.1

P 4 ± 0.1

W 8 +0.3, -0.1

T 0.254 ± 0.02

R7 Quantity 3000

R13 Quantity N.A.

Note: R7 = 7 inch Lock Reel, R13 = 13 inch Lock Reel

6-lead DFN

Table 7. Ordering Information

Order Code Part Marking Description Package Shipping Method

4246-51 4246 PE4246G-06DFN 3x3mm-12800F Green 6-lead 3x3 mm DFN Tape or loose

4246-52 4246 PE4246G-06DFN 3x3mm-3000C Green 6-lead 3x3 mm DFN 3000 units / T&R

4246-00 PE4246-EK PE4246-06DFN 3x3mm-EK Evaluation Kit 1 / Box

Figure 15. Tape and Reel Specifications

Device Orientation in Tape

Top of

Device

Pin 1

Tape Feed Direction

Product Specification

PE4246

Page 8 of 8

Sales Offices

The Americas

Peregrine Semiconductor Corporation

9380 Carroll Park Drive

San Diego, CA 92121

Tel: 858-731-9400

Fax: 858-731-9499

Europe

Peregrine Semiconductor Europe

Bâtiment Maine

13-15 rue des Quatre Vents

F-92380 Garches, France

Tel: +33-1-4741-9173

Fax : +33-1-4741-9173

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 CNF

(Customer Notification Form).

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, HaRP, MultiSwitch and DuNE are trademarks

of Peregrine Semiconductor Corp.

High-Reliability and Defense Products

Americas

San Diego, CA, USA

Phone: 858-731-9475

Fax: 848-731-9499

Europe/Asia-Pacific

Aix-En-Provence Cedex 3, France

Phone: +33-4-4239-3361

Fax: +33-4-4239-7227

Peregrine Semiconductor, Asia Pacific (APAC)

Shanghai, 200040, P.R. China

Tel: +86-21-5836-8276

Fax: +86-21-5836-7652

Peregrine Semiconductor, Korea

#B-2607, Kolon Tripolis, 210

Geumgok-dong, Bundang-gu, Seongnam-si

Gyeonggi-do, 463-943 South Korea

Tel: +82-31-728-3939

Fax: +82-31-728-3940

Peregrine Semiconductor K.K., Japan

Teikoku Hotel Tower 10B-6

1-1-1 Uchisaiwai-cho, Chiyoda-ku

Tokyo 100-0011 Japan

Tel: +81-3-3502-5211

Fax: +81-3-3502-5213