SKY13251-349LF - Skyworks Solutions, Inc.

Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com

200609 Rev. E • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • April 10, 2007 1

Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com

200609 Rev. E • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • April 10, 2007

Applications

●802.11b, g

●Bluetooth®

●Zigbee™

●TDMA/GSM/EDGE CDMA/WCDMA

●Other short-range wireless applications

Features

●Positive low voltage control (0/+2.4 V)

●Low insertion loss (<0.5 dB @ 2.5 GHz)

●High isolation RF2, RF3 paths (29 dB @ 2.5 GHz

and 27 dB @ 2.5 GHz)

●Miniature QFN-8 lead exposed paddle 2 x 2 mm

●PHEMT process

●Available lead (Pb)-free and RoHS-compliant MSL-1 @ 260 °C

per JEDEC J-STD-020

Description

The SKY13251-349 is a PHEMT GaAs IC SP3T switch in a

2 x 2 mm QFN-8E package. The high isolation, low loss, small

size and low cost features make this switch ideal for isolating

Bluetooth®from 802.11b, g and designs that require combining

TDMA, GSM, EDGE, CDMA, WCDMA with other short-range wire-

less applications. This switch is also available in a lead (Pb)-free

package that is fully compliant with current RoHS requirements.

The SKY12351-349 employs an asymmetrical design for

improved performance as a transmit-receive switch. The path

between the RF common (RFC) and RF1 is optimized for low loss

transmit use, while the remaining two paths, RFC to RF2 and RFC

to RF3, are optimized to produce higher isolation in receiver

signal paths.

A fully populated evaluation board is available.

SKY13251-349, SKY13251-349LF: SP3T Switch for

Bluetooth®and 802.11b, g

DATA SHEET

RFC

RF1

RF3

RF2

Simplified Block Diagram

Skyworks offers lead (Pb)-free, RoHS (Restriction of

Hazardous Substances)-compliant packaging.

NEW

DATA SHEET • SKY13251-349, SKY13251-349LF

Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com

April 10, 2007 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • 200609 Rev. E2

Parameter Condition Frequency Min. Typ. Max. Unit

Switching characteristics

Rise 10% to 90% RF 50 ns

Fall 90% to 10% RF 25 ns

On 50% VCTL to 90% RF 50 ns

Off 50% VCTL to 10% RF 50 ns

Input power for -1.0 dB compression VCTL = 0/3 V 0.5–3 GHz 25 dBm

Intermodulation intercept point (IP3) Two-tones 900 MHz, 5 MHz spacing 0.5–3 GHz 46 dBm

+10 dBm each tone

Control voltages

High 2.3 5.5 V

Low 0 0.2 V

Control port input current VCTL = 3 V 100 µA

VCTL = 0 V 20 µA

Operating Characteristics at 25 ºC (0, +3 V)

Z0= 50 Ω, unless otherwise noted

Parameter Condition Frequency Min. Typ. Max. Unit

Insertion loss RFC-RF1 LF–1.0 GHz 0.35 0.40 dB

1.0–2.0 GHz 0.40 0.50 dB

2.0–3.0 GHz 0.45 0.60 dB

RFC-RF2, RF3 LF–1.0 GHz 0.35 0.40 dB

1.0–2.0 GHz 0.50 0.60 dB

2.0–3.0 GHz 0.60 0.70 dB

Isolation RFC-RF1 LF–1.0 GHz 22 24 dB

1.0–2.0 GHz 15 18 dB

2.0–3.0 GHz 12 15 dB

RFC-RF2, RF3 LF–1.0 GHz 25 29 dB

1.0–2.0 GHz 23 27 dB

2.0–3.0 GHz 23 27 dB

Return loss RFC-RF1 LF–1.0 GHz 24 dB

(insertion loss state) 1.0–2.0 GHz 25 dB

2.0–3.0 GHz 25 dB

RFC-RF2, RF3 LF–1.0 GHz 22 dB

1.0–2.0 GHz 19 dB

2.0–3.0 GHz 20 dB

Electrical Specifications at 25 ºC (0, +3 V)

Z0= 50 Ω, unless otherwise noted

LF = low frequency.

The low frequency limit is set by the value of the DC blocking capacitors used external to the part.

DATA SHEET • SKY13251-349, SKY13251-349LF

Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com

200609 Rev. E • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • April 10, 2007 3

Typical Performance Data

Z0= 50 Ω, TA= 25 °C, unless otherwise noted

Frequency (GHz)

Insertion Loss vs. Frequency

-1.0

-0.9

-0.8

-0.7

-0.6

-0.5

-0.4

-0.3

-0.2

-0.1

Insertion Loss (dB)

0 0.5 1.0 1.5 2.0 2.5 3.0

RFC-RF1 Path

RFC-RF3 Path

RFC-RF2 Path

Frequency (GHz)

Isolation vs. Frequency

-40

-35

-30

-25

-20

-15

-10

-5

0 0.5 1.0 1.5 2.0 2.5 3.0

Isolation (dB)

RFC-RF1 Path w/RF2 On

RFC-RF3 Path w/RF1 On

RFC-RF2 Path w/RF1 On

Frequency (GHz)

Return Loss vs. Frequency

-40

-35

-30

-25

-20

-15

-10

-5

0 0.5 1.0 1.5 2.0 2.5 3.0

Return Loss (dB)

RFC-RF3 Path

RFC-RF2 Path

RFC-RF1 Path

Characteristic Value

RF input power (VCTL = 0/7 V) 1 W, f > 500 MHz

0.5 W, f < 500 MHz

Control voltage -0.2 V, +8 V

Operating temperature -40 °C to +85 °C

Storage temperature -65 °C to +150 °C

ΘJC 45 °C/W

Absolute Maximum Ratings

Performance is guaranteed only under the conditions listed in the specifications table and is

not guaranteed under the full range(s) described by the Absolute Maximum specifications.

Exceeding any of the absolute maximum/minimum specifications may result in permanent

damage to the device and will void the warranty.

CAUTION: Although this device is designed to be as robust as

possible, ESD (Electrostatic Discharge) can damage

this device. This device must be protected at all times

from ESD. Static charges may easily produce poten-

tials of several kilovolts on the human body or

equipment, which can discharge without detection.

Industry-standard ESD precautions must be employed

at all times.

DATA SHEET • SKY13251-349, SKY13251-349LF

Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com

April 10, 2007 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • 200609 Rev. E4

V1V2V3RFC-RF1 RFC-RF2 RFC-RF3

100Isolation Insertion loss Isolation

010Insertion loss Isolation Isolation

001Isolation Isolation Insertion loss

Truth Table

QFN 8E 2 x 2 (-349)

0.56 ± 0.01

0.29 + 0.16-0.09

1.02 + 0.10-0.08

0.17/0.302X

0.125 Max.

BOTTOM VIEW

Top View Side View

Pin 1

Mark

0.51 ± 0.01

0.70 ± 0.05

0.20 ± 0.05

0.025 ± 0.025

0.90 ± 0.10

10° + 2° -10°

2.00 BSC

0.125 Max.

2.00 BSC

Exposed Pad

R0.075 Ref

0.28 ± 0.01

0.29+0.16-0.09

0.20 + 0.08 -0.02

0.50 BSC

RFC

N/C

CBLCBL

RF1

RF3

RF2

CBL CBL

Pin Out (Top View)

CBL = 47 pF for operation >500 MHz.

Exposed paddle must be grounded.

All other logic conditions put the switch in an undefined state.

"0"= 0 to 0.2 V.

"1"=2.3 to 5.5 V.

Recommended Solder Reflow Profiles

Refer to the “Recommended Solder Reflow Profile”

Application Note.

Tape andReel Information

Refer to the “Discrete Devices and IC Switch/Attenuators

Tape and Reel Package Orientation” Application Note.

DATA SHEET • SKY13251-349, SKY13251-349LF

Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com

200609 Rev. E • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • April 10, 2007 5

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